Best ERP for professional services: the scored rankings

The strongest ERP fits for professional services companies as of July 2026 are Sage Intacct, NetSuite, and QuickBooks, from 16 systems rated 1-5 for this industry against our deep profiles. SPI Research's 2026 benchmark put average billable utilization at 66.4 percent, the lowest reading in the survey's history, across 509 firms managing $63 billion in services revenue. The architecture question matters more than the brand: below roughly 50 billable staff and one entity, a PSA over QuickBooks Online beats implementing an ERP.

Last reviewed 2026-07-14·Scoring methodology·No vendor pays for placement

Who this page covers

Professional Services is not one market. The verdicts below are written across these sub-verticals, and where a rating splits by sub-vertical the evidence says so:

Agencies and consultancies (marketing, creative, management consulting)IT services firms and managed service providers (MSPs)Architecture and engineering (A&E) firmsAccounting, legal, and other regulated practices

When you do not need an ERP

Below roughly 50 billable staff with a single entity, the standard stack is a PSA (BigTime, Scoro, Projectworks; Kantata at larger scale) on top of QuickBooks Online as the ledger. That pairing is the most common working setup in the industry, and the leading PSAs all ship QuickBooks sync as a first-class feature.

The pairing ends on two fronts: the first foreign subsidiary or partner-owned entity structure that needs real consolidation, and the first audit that questions percent-complete revenue recognition held in spreadsheets. The move then is Sage Intacct or NetSuite with the PSA retained, not more QuickBooks apps. A&E firms taking government-funded work hit a third trigger, FAR compliance, which points at Deltek.

The full specialist roster, with pricing and boundaries, is further down this page.

All 16 systems, ranked for professional services

Ratings are 1-5 for this industry specifically, anchored to our deep system profiles. Where an industry rating deviates from a system's cross-industry rating, the evidence explains why. Expand any row for the evidence and caveats.

1Sage Intacct
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The reference mid-market services ledger. When a firm outgrows QuickBooks plus a PSA, Intacct plus that same PSA is the most common next stack, and for many firms it is the last accounting move they need to make.
Evidence & caveats
What supports this rating
Deep profile rates projectsServices 4: the Project Accounting module covers budgets, WIP, percent-complete and milestone billing, and time and expense feeding project costing, and the profile calls project profitability on the dimensional GL a frequent reason services firms shortlist it. Professional services is a listed strong-fit industry in our matching data. The 5 reflects that within this vertical it is the ledger most PSA vendors build their flagship integration against.
Caveats
Native project tooling is accounting-grade, not delivery-grade: resource scheduling, capacity planning, and utilization dashboards still come from a paired PSA (Kantata, BigTime, and Certinia all ship Intacct connectors). US-centric payroll and localization; global staffing shops should scope international entities carefully.
2NetSuite
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The incumbent all-in-one for services companies from roughly $25M to enterprise scale, on the strength of a genuinely strong PSA that costs extra. Budget for SuiteProjects Pro or plan to pair a third-party PSA.
Evidence & caveats
What supports this rating
Deep profile rates projectsServices 3 for the in-suite module (project costing, T&E, charge-based billing) and reserves the real praise for SuiteProjects Pro, rebranded from OpenAir in early 2025, with enterprise resource management, capacity planning, and multi-currency project accounting at a reported $25-$50/user/month on top. Professional services is a listed strong-fit industry. We rate 4, above the in-suite domain rating, because the NetSuite plus SuiteProjects Pro stack is the standard single-vendor answer for global services firms, and OpenAir's installed base makes it the PSA incumbent this page's specialists are usually replacing.
Caveats
The in-suite projects module alone is thin for resource scheduling and utilization; firms that skip SuiteProjects Pro usually end up pairing Kantata or another PSA anyway. Timesheet UX and approvals need workflow customization to be tolerable at scale, per our profile. Total cost lands well above Intacct for the same headcount.
3QuickBooks
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Weak alone, correct in the standard stack. Below roughly 50 billable staff and one entity, a PSA on top of QuickBooks Online beats implementing an ERP, and that pairing is the most common working setup in this industry.
Evidence & caveats
What supports this rating
Deep profile rates projectsServices 2 standalone: Projects tracks income, cost, and labor per job with no WIP, resource planning, or estimates-versus-actuals depth. We rate industry fit 4, two notches above the domain rating, because the QBO-plus-PSA pattern is the default small-firm architecture (BigTime, Scoro, and Projectworks all ship QBO sync as a first-class feature) and this page's specialist roster exists to support that recommendation line by line.
Caveats
The ceiling is real and arrives on two fronts: multi-entity consolidation and auditable percent-complete revenue recognition. When either lands, the move is Intacct or NetSuite with the PSA retained, not more QuickBooks apps. Firms with material fixed-fee revenue should not wait for the audit letter.
4Intuit Enterprise Suite
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A credible multi-entity ledger step-up for firms that want to stay inside Intuit, but its project depth points at construction, not consulting. Treat it as a QBO successor that still wants a PSA beside it.
Evidence & caveats
What supports this rating
Deep profile rates projectsServices 4, and professional services is a listed strong-fit industry in our matching data. We rate 3, below the domain rating, because the profile's evidence for that 4 is construction-flavored (change orders, committed costs, cost-to-complete); the utilization, resource planning, and engagement-level billing workflows services firms actually need are absent, so the honest IES pattern for this vertical is IES plus a PSA, at which point Intacct deserves the comparison.
Caveats
Young product with a thin implementer bench and opaque pricing; reference-check the specific team. Multi-entity and dimensional reporting are genuine advances over QBO, so the strongest case is a multi-entity firm already deep in Intuit payroll and ecosystem.
5Microsoft Dynamics 365 Business Central
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Workable for Microsoft-committed services firms, with the Projects module carrying light and mid-weight work. It is not a PSA, and services firms with real resource management needs add ISV or PSA layers.
Evidence & caveats
What supports this rating
Deep profile rates projectsServices 3: project tasks and planning lines cover budget versus actual, T&M and fixed-price billing with multiple WIP methods, and native approvable time sheets. The profile states plainly that it is not a full PSA and that services firms with complex resource management or billing rules add ISVs; professional services appears in its strong-fit industry list on the strength of the ledger, not the delivery tooling.
Caveats
The Microsoft 365 and Teams integration is a legitimate draw for firms living in Outlook and Excel. Partner quality decides outcomes, and generalist BC partners outnumber services-specialized ones; ask for services references, not distribution ones.
6Microsoft Dynamics 365 Finance & Operations
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The enterprise Microsoft answer for global consultancies, delivered as two products: F&O for the ledger and Dynamics 365 Project Operations for the PSA. Capable at scale, heavy below it.
Evidence & caveats
What supports this rating
Deep profile rates projectsServices 3: classic project accounting (WBS, cost control, WIP, percentage-complete) is native, and Microsoft's strategic services tool is Project Operations at a reported ~$120/user/month, spanning Dataverse and F&O with the profile flagging that the split architecture adds complexity. For a 1,000-person global consultancy already on Azure and Teams, that stack is a genuine contender against NetSuite plus PSA.
Caveats
Cost and implementation weight are enterprise-grade; mid-market services firms should not start here. The Project Operations integration pattern (integrated versus lite deployment) is a real design decision with consequences; make the partner explain it before contract.
7Acumatica
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Competent project accounting in a well-priced platform, but the vertical energy goes to construction and field trades, not consultancies. Fine for services firms adjacent to those worlds; rarely the natural shortlist otherwise.
Evidence & caveats
What supports this rating
Deep profile rates projectsServices 4 on genuine project strength (budgets, commitments, revenue recognition, T&M and fixed-price billing rules), but the flagged depth is the Construction Edition and field service, and professional services is absent from its strong-fit industry list in our matching data. Rated 3 for this vertical: the accounting works, while PSA-grade resource management, utilization reporting, and bench planning are not what the product is for.
Caveats
Engineering firms doing site work and IT services firms with field installation crews are the plausible fits, since project accounting and field service share one database. Consumption-based licensing is friendly to firms with many light-touch timesheet users.
8Odoo
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The budget all-in-one for small agencies and studios. Timesheets, projects, and invoicing connect cleanly at a price nothing else here matches, with a hard ceiling on revenue recognition and consolidation discipline.
Evidence & caveats
What supports this rating
Deep profile rates projectsServices 3: the project app with profitability tracking through analytic accounting, and timesheets flowing to T&M, fixed-price, and milestone invoicing, which it calls adequate-to-good for SMB services firms and not a substitute for dedicated PSA at scale. Professional services is a listed strong-fit industry in our matching data.
Caveats
ASC 606 percent-complete recognition and audit-grade deferred revenue schedules need customization or add-ons; firms headed toward audited statements should price that work honestly. Self-hosted and Community-edition setups shift the burden to internal technical staff. Quality varies sharply by implementation partner.
9Priority ERP
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Usable project accounting exists, but professional services is not where Priority wins, and US services references are thin. Strongest case is a project-centric firm with Israeli or international operations already near the product.
Evidence & caveats
What supports this rating
Deep profile rates projectsServices 3 (WBS budgeting, cost tracking, milestone and progress billing) and describes the fit as project-centric manufacturers, contractors, and service firms. Professional services is absent from its strong-fit industry list in our matching data, and nothing in the profile addresses PSA workflows like utilization, bench management, or engagement-level realization. Rated 2 on that gap.
Caveats
The 2025 acquisition activity has been aimed at retail, construction, and vertical software, not services automation. A services firm evaluating Priority should demand live US professional services references before proceeding.
10Rillet
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A modern AI-forward GL aimed squarely at SaaS companies. For a services firm it is a ledger without project economics, and its own positioning does not argue otherwise.
Evidence & caveats
What supports this rating
Deep profile rates projectsServices 2: no project costing, resource management, or timesheet-driven billing, with the profile noting services-heavy companies pair Rillet with a PSA tool or look elsewhere. Its rev rec engine is built around subscription contracts, and professional services is not in its target industries. The 2 acknowledges that a tech-adjacent services firm could run Rillet beside a PSA, but nothing about the product argues for that choice over Intacct.
Caveats
The plausible edge case is a SaaS company with a material implementation services arm, which is Rillet's actual market with services attached, not a services firm.
11Campfire
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Same shape as Rillet: an AI-native SaaS ledger where milestone billing covers implementation fees, not a services business. Not a professional services option today.
Evidence & caveats
What supports this rating
Deep profile rates projectsServices 2: no PSA or project accounting module, with milestone billing in Revenue Automation handling fixed-fee service milestones at a software company and reporting dimensions giving light services visibility. That covers services attach at a SaaS firm, not utilization, WIP, or engagement margin at a firm that sells time.
Caveats
None beyond the category mismatch; revisit if Campfire ships project accounting.
12DualEntry
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A multi-entity finance-first ledger with no project layer. The consolidation story is real; the services story does not exist.
Evidence & caveats
What supports this rating
Deep profile rates projectsServices 2: no project costing, resource management, or timesheet billing, with dimensions and allocation automation covering light services attach only. A multi-entity services group could technically run its GL here beside a PSA, but no PSA vendor treats DualEntry as a first-class integration target the way they treat Intacct and NetSuite, which decides the comparison.
Caveats
None beyond the category mismatch.
13SAP Business One
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A product-centric SMB suite whose lightweight project module tracks internal projects, not client engagements. Services firms considering it are usually being sold by a generalist partner, not choosing it.
Evidence & caveats
What supports this rating
Deep profile rates projectsServices 2 and says it directly: professional services firms needing resource planning, time and expense, and project billing usually look elsewhere or bolt on partner tools. Multi-currency and localization strength does not compensate for the missing services spine.
Caveats
Localized partner add-ons for services exist in some markets; treat any such pitch as a custom build and price the exit accordingly.
14Epicor
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Projects that end in a shipped product, not a signed deliverable. Epicor's project depth serves engineer-to-order manufacturers, and the profile itself calls it weak as a PSA.
Evidence & caveats
What supports this rating
Deep profile rates projectsServices 3 explicitly aimed at engineer-to-order and contract manufacturing rather than professional services automation, and states it is adequate for manufacturing-centric project work and weak as a PSA. Nothing in Epicor's vertical strategy (manufacturing, distribution, building supply) touches this industry.
Caveats
None; category mismatch.
15Infor CloudSuite
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Project depth lives in aerospace and heavy equipment manufacturing, and Infor is not a professional services automation play by its own profile's account. No mainstream services offering exists at this tier.
Evidence & caveats
What supports this rating
Deep profile rates projectsServices 3 on LN's ETO and project manufacturing strength and states that services-centric firms should look elsewhere. Rated 1 for this vertical because none of that capability maps to utilization, engagement billing, or PSA workflow, and Infor's deal size assumes an enterprise that would be better served by every alternative on this page.
Caveats
None; category mismatch.
16Light
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No project costing, no timesheets, no milestone billing evidence, and a European startup target market besides. The weakest services fit of the 16.
Evidence & caveats
What supports this rating
Deep profile rates projectsServices 1, with no project costing, resource management, or timesheet capture appearing in any vendor or third-party material, and unlike some ledger peers no public evidence of milestone billing either.
Caveats
None; category mismatch.

What actually matters in this industry

Capability priorities for professional services buyers, from our fit model. Vendors demo everything; these are the areas where depth decides outcomes.

Critical

Project / job accounting: Services firms sell time and deliverables, so the operating spine is project economics: budgets versus actuals, time and expense capture, WIP, utilization, and realization by engagement. Whether this lives in the ERP or in a paired PSA is the central architecture question of this vertical; either way it must exist somewhere and reconcile to the ledger.

Important

Complex revenue recognition: Firms billing pure time and materials can defer this. The moment fixed-fee, milestone, or retainer contracts become material, percent-complete and milestone revenue recognition under ASC 606 becomes an audit requirement, and it is the single most common reason a services firm outgrows QuickBooks plus a PSA.
Multi-entity & consolidation: Global staffing shops, agency groups, and roll-ups run many entities with intercompany labor recharges between them. This is the second big threshold: single-entity firms can stay on a small ledger far longer than multi-entity ones, where consolidation drags the close out by weeks.
Multi-currency: Delivery centers and clients rarely share a currency once a firm passes roughly 100 people. Multi-currency invoicing, revaluation, and consolidated reporting follow directly from the multi-entity trigger and should be evaluated together with it.
Subscription / recurring billing: Scoped to two sub-verticals: MSPs bill recurring seats and devices monthly, and agencies run retainers. For them, recurring billing with proration and true-ups is a real requirement. Project-only consultancies and A&E firms can treat this as rarely needed.
Intercompany transactions: Cross-entity staffing means one entity's consultants bill another entity's client. Intercompany recharges, transfer pricing on labor, and eliminations are routine at global services firms and painful to fake with journal entries.

Rarely decisive here: Field service, Inventory management, Manufacturing & production. Do not pay for depth in these unless your sub-vertical is the exception the page notes.

What sends professional services companies shopping

1
Nobody can answer what utilization or margin per engagement was last month. Time lives in one tool, invoices in another, and the ledger in a third, so project profitability arrives quarterly, by spreadsheet, after the partners have already staffed the next quarter.
2
The firm starts winning fixed-fee and milestone work, and the auditors ask how percent-complete revenue is supported. Deferred and unbilled revenue schedules held in Excel next to QuickBooks stop surviving audit scrutiny.
3
Unbilled WIP balloons and write-offs surface at year end. Revenue leakage from unbilled time, scope creep, and rate erosion is invisible until the PSA and the ledger reconcile, which they currently do not.
4
A first foreign subsidiary (a UK entity, an India delivery center, a nearshore studio) brings intercompany labor recharges, multi-currency invoicing, and consolidation that a single-entity ledger cannot close cleanly.
5
Time and invoices are entered twice: once in the delivery tool, once in accounting. Someone finally prices the rekeying errors and the days added to month-end close.
6
An A&E firm takes its first government-funded work and meets FAR overhead audits and compliance reporting that generic accounting cannot produce; this is the classic trigger toward Deltek.
7
A private equity platform starts rolling up agencies or MSPs, and each acquisition arrives on a different stack. Consolidation, common dimensions, and comparable job margins across entities become the selection driver.

The specialists: 9 systems ERPs compete against

These are not scored by our ERP methodology; they are curated from our industry research, verified for ownership, pricing posture, and current availability as of July 2026. The boundary fields matter most: every one of these tools ends somewhere, and that boundary is where ERP decisions actually get made.

enterprise professional services automation (PSA)

Kantata (formerly Mavenlink and Kimble)

Kantata is the PSA formed when Accel-KKR merged Mavenlink and Kimble Applications (merger closed December 2021, brand launched May 2022). It sells two products: Kantata OX, the former Mavenlink, and Kantata SX, the former Kimble, which is Salesforce-native. Both cover resource management, project delivery, T&E, and services financials, and 2025-2026 releases added the Expertise Engine AI layer and agent features.

Best for:: Consultancies, agencies, and IT services firms from roughly 100 to several thousand billable people that need serious resource management and utilization forecasting, and that keep accounting in a separate ledger. IDC placed it as a Leader in its 2025-2026 AI-enabled PSA assessment.
Not for:: Firms under roughly 50 people, where its implementation weight and price defeat the purpose; BigTime, Scoro, or Projectworks fit that scale. Also not for firms that want one system for books and delivery, since Kantata has no general ledger.
Where it ends:: At the ledger. Kantata produces invoices and services financials but AP, GL, payroll, and statutory reporting live in the accounting system, with NetSuite, Intacct, and QuickBooks as standard integrations. The two-product reality also matters: OX and SX are different codebases with different Salesforce postures, so demo the one you would actually buy.
Pricing:: Quote-based; Undisclosed. Third-party trackers float per-user figures that disagree widely; treat any number not on a Kantata order form as a guess.
Pairs with:: NetSuite Sage Intacct QuickBooks

Ownership & sources

Ownership: Accel-KKR (private equity, majority since the 2021 merger), with Carrick Capital Partners and Goldman Sachs continuing as investors.

Salesforce-native PSA and services ERP

Certinia Professional Services Cloud

Certinia (renamed from FinancialForce in 2023) builds its Professional Services Cloud on the Salesforce platform: opportunity-to-delivery handoff, resource management, project financials, and billing living in the same org as Salesforce CRM. A companion ERP Cloud product (the former FinancialForce Accounting) can serve as the full ledger for firms that want everything on Salesforce.

Best for:: Services organizations already running Salesforce as the system of record, especially embedded services arms of software companies and consultancies above roughly 100 people, where the CRM-to-project handoff without integration is the whole point.
Not for:: Firms not on Salesforce, for whom the platform dependency is pure cost, and small firms for whom per-seat economics on the Salesforce stack do not work. Also wrong for firms that want a best-of-breed ledger, since its ERP Cloud trails Intacct and NetSuite on accounting depth outside the Salesforce context.
Where it ends:: PS Cloud alone ends at the ledger, pairing with an external ERP or with Certinia's own ERP Cloud. Either way you are committing to Salesforce platform licensing, administration, and release cadence on top of Certinia's own; price both layers before comparing against non-Salesforce stacks.
Pricing:: Quote-based; Undisclosed. Licensed per user on the Salesforce platform, so the all-in seat cost includes Salesforce platform licensing; budget both lines.
Pairs with:: NetSuite Sage Intacct

Ownership & sources

Ownership: Haveli Investments (majority since August 2023), with a TA Associates minority investment (November 2024) and continuing stakes held by General Atlantic and Salesforce Ventures.

all-in-one work management and PSA for agencies and consultancies

Scoro

Scoro combines quoting, project and task management, time tracking, retainer management, resource planning, and invoicing in one product aimed at agencies, consultancies, and other professional services firms. Founded in 2013 by Fred Krieger, with headquarters in London and roots in Tallinn.

Best for:: Agencies and consultancies of roughly 10 to 250 people that want quote-to-invoice in one tool with published pricing, particularly retainer-heavy shops, since retainer management is a first-class feature rather than an add-on.
Not for:: Large enterprises needing deep multi-entity services financials (Kantata and Maconomy territory), or MSPs, whose ticketing and RMM-adjacent workflows Scoro does not attempt.
Where it ends:: At the ledger: Scoro raises invoices and tracks project finances but books close in QuickBooks, Xero, or an ERP through its integrations. Revenue recognition beyond invoicing schedules, payroll, and statutory reporting are out of scope.
Pricing:: Published: Core, Growth, and Performance tiers at $19.90, $32.90, and $49.90 per user per month on annual billing ($23.90, $38.90, and $59.90 billed monthly), 5-seat minimum, Enterprise quoted (high confidence; scoro.com/pricing, fetched July 2026).
Pairs with:: QuickBooksXero

Ownership & sources

Ownership: Independent and venture-backed: $16.4M Series B (March 2021) led by Kennet Partners, joined by Livonia Partners, Inventure, Columbia Lake Partners, and Tera Ventures; founder Fred Krieger remains CEO.

PSA for mid-sized accounting, consulting, and engineering firms

BigTime

BigTime is a Chicago-built PSA covering time and expense, billing and invoicing, resource management, and project reporting, historically strongest among accounting, consulting, architecture, and engineering firms on QuickBooks. A $100M growth investment from Vista Equity Partners (January 2022) funded expansion, including the Projector PSA acquisition (2022).

Best for:: Firms of roughly 10 to 200 billable people, especially CPA and consulting shops that live in QuickBooks and need utilization, WIP, and invoice workflow without an ERP project. The QuickBooks integration is the deepest part of the product.
Not for:: Global multi-entity firms needing enterprise resource management (Kantata's scale), or MSPs, whose recurring seat billing and ticketing BigTime does not cover.
Where it ends:: At the ledger: books stay in QuickBooks or Sage Intacct via native integrations. Percent-complete revenue recognition and consolidation belong to the accounting system, so BigTime rides along when a firm steps up from QBO to Intacct rather than being replaced.
Pricing:: Partially published: Essentials at $20/user/month, with Advanced, Premier, and Enterprise tiers quoted (high confidence on the $20 figure; bigtime.net/pricing, fetched July 2026). Earlier public tiers ran $20/$35/$45 per user per month before the upper tiers moved behind sales conversations (moderate confidence).
Pairs with:: QuickBooks Sage Intacct

Ownership & sources

Ownership: Private; Vista Equity Partners holds a strategic growth position from its $100M January 2022 investment through Vista's Endeavor Fund.

PSA for consultancies and engineering firms

Projectworks

Projectworks is a Wellington, New Zealand PSA covering time, resourcing, forecasting, expenses, and invoicing for consulting and engineering firms. It grew out of internal tooling at the consultancy Provoke and launched publicly in 2019; a $12M investment led by Ten Coves Capital (June 2025) took its Series A to $15M USD, funding an AI feature push.

Best for:: Consultancies and engineering firms of roughly 10 to 300 people that want straightforward per-seat pricing, strong forecasting, and native Xero and QuickBooks sync; it is a frequent pick in Australia, New Zealand, the UK, and increasingly the US.
Not for:: Firms needing Salesforce-native workflow (Certinia's turf), enterprise resource management at thousand-person scale, or MSP ticketing. A&E firms with FAR compliance needs belong with Deltek instead.
Where it ends:: At the ledger: multi-entity and multi-currency support exist in the top tier, but the books, payroll, and statutory reporting live in Xero, QuickBooks, or an ERP. Its multi-entity features organize delivery data, not consolidation accounting.
Pricing:: Published: Build, Scale, and Unleash tiers at $17, $24, and $41 per user per month billed monthly, with a 10 percent discount for annual billing, 10-user minimum billed in bands of 5, onboarding from $1,000 (high confidence; projectworks.com/pricing, fetched July 2026).
Pairs with:: QuickBooksXero

Ownership & sources

Ownership: Independent and venture-backed: a $12M addition led by Ten Coves Capital (June 2025) brought its Series A to $15M USD, with Bridgewest Group and Punakaiki Fund among existing investors; total funding reported above $20M USD.

full ERP for architecture, engineering, and consulting firms

Deltek Vantagepoint

Vantagepoint is Deltek's flagship A&E and consulting ERP, the successor to Deltek Vision: project accounting, GL, billing, resource planning, and pursuit CRM in one system built around the project lifecycle. Deltek reports 30,000-plus customers across its portfolio, and Vantagepoint made G2's 2026 Best Software Awards ERP list.

Best for:: Architecture and engineering firms from roughly 30 to several thousand staff, and A&E firms doing government-funded work that must survive FAR overhead audits, where Deltek's compliance pedigree is the moat no horizontal ERP matches.
Not for:: Agencies, MSPs, and generalist consultancies without A&E-style project structures; the product assumes disciplines, phases, and multipliers. Small firms below roughly 20 staff usually fit BQE CORE or Deltek's own Ajera better.
Where it ends:: It is the ledger, but a single-industry one. Diversified groups with non-services subsidiaries consolidate above it, HR and payroll typically integrate from third parties, and firms leaving the A&E model find its project structures hard to repurpose. Migration off Vision remains a real project despite the shared vendor.
Pricing:: Quote-based; Undisclosed. Third-party estimates put cloud subscriptions roughly at $30-$60 per user per month plus implementation (low confidence; VendorBenchmark and ERP Research 2026 listings disagree).
Pairs with:: Nothing. It replaces the ledger rather than pairing with one.

Ownership & sources

Ownership: Deltek, owned by Roper Technologies (public, ticker ROP), which acquired Deltek from Thoma Bravo for $2.8B in December 2016.

enterprise ERP for consultancies, agencies, and accounting firms

Deltek Maconomy

Maconomy is Deltek's enterprise services ERP of Danish origin, unifying project management, resource planning, financial accounting, and time and billing for international professional services groups: management consultancies, marketing and advertising agencies, IT services, tax and audit firms, and clinical research organizations.

Best for:: Multi-entity, multi-country services firms of roughly 100 to 5,000-plus employees, with particular strength among European consultancies, agency networks, and accounting and audit firms that need one system for engagement economics and statutory-grade finance across borders.
Not for:: Small and mid-sized single-entity firms, for whom its implementation weight is disqualifying, and A&E firms, which Deltek itself routes to Vantagepoint. US-only firms should compare Intacct plus a PSA before accepting Maconomy's timeline.
Where it ends:: It is the full ledger, so the boundary is organizational: implementations reported at nine to eighteen months for multi-entity deployments, meaningful internal admin burden, and a consultant bench thinner in North America than in Europe. CRM and HR typically integrate from elsewhere.
Pricing:: Quote-based; Undisclosed. Custom enterprise pricing by module and user count; third-party listings report nine-to-eighteen-month implementations for typical multi-entity deployments (low confidence; Software Advice and platform directory 2026 listings).
Pairs with:: Nothing. It replaces the ledger rather than pairing with one.

Ownership & sources

Ownership: Deltek, owned by Roper Technologies (public, ticker ROP) since December 2016.

business management PSA for MSPs and IT services providers

ConnectWise PSA

ConnectWise PSA (formerly ConnectWise Manage) is the incumbent MSP operating system: ticketing, service boards, agreements and recurring billing, procurement, and project work, increasingly delivered on the ConnectWise Asio platform, with a new Asio-native PSA launched in 2025 and a $100M AI platform push announced for 2026. Its main rival is Autotask, owned by Kaseya.

Best for:: MSPs and IT services firms from a few technicians to several hundred, where agreements-based recurring billing, SLA-driven ticketing, and RMM integration are the actual business model and generic PSAs do not fit.
Not for:: Non-MSP professional services firms; the product assumes tickets, devices, and agreements, not engagements and utilization. Also a poor fit for firms wanting light tooling, since reviewers consistently describe real administrative overhead.
Where it ends:: At the ledger: GL, payroll, and financial statements live in QuickBooks, Xero, or an ERP through its accounting integrations. Larger MSPs and MSP roll-ups typically step the ledger up to Intacct or NetSuite while keeping ConnectWise as the operational system.
Pricing:: Quote-based; Undisclosed. Third-party figures scatter from roughly $25 to $85 per user per month depending on tier and bundle (low confidence; TrustRadius and other 2026 trackers disagree), and 2025 introduced the bundled ConnectWise Pro packaging.
Pairs with:: QuickBooksXero

Ownership & sources

Ownership: Thoma Bravo (private equity, majority since 2019); founder Arnie Bellini exited leadership after the acquisition.

practice management for small and mid-sized A&E firms

BQE CORE

BQE CORE is time tracking, billing, project management, and optional accounting for architecture and engineering practices, built by BQE Software, founded in 1995 by structural engineer Shafat Qazi (originally as BillQuick). It grew up as a QuickBooks companion and now sells modular per-user subscriptions with optional accounting, CRM, and HR modules.

Best for:: A&E and design firms from sole practitioners to roughly 100 staff that need phase-based billing, retainers, and project profitability without Deltek's weight or price. The most frequent reviewer use case is time tracking feeding clean invoices.
Not for:: Large A&E firms with FAR audit and government compliance needs (Vantagepoint territory), agencies and consultancies outside the design professions, and MSPs.
Where it ends:: Books can stay in QuickBooks via its long-standing integration or move onto CORE's own accounting module; firms choosing the latter should note the module is practice-grade, not a mid-market ERP, so multi-entity consolidation and audit-grade rev rec eventually force a step up.
Pricing:: Per-user, module-based quoting with no published price card (bqe.com/pricing, fetched July 2026); third-party estimates put entry around $40-$60 per user per month before add-on modules (low confidence; Software Finder and ITQlick 2026 listings).
Pairs with:: QuickBooks

Ownership & sources

Ownership: Private; founder-led history with a significant growth investment from Serent Capital (March 2021), after which founder Shafat Qazi moved from CEO to the board.

Numbers worth citing

Citable stat · as of 2026-07-14
SPI Research's 2026 Professional Services Maturity Benchmark, compiled from 509 organizations managing $63 billion in services revenue, put average billable utilization at 66.4 percent for 2025, the lowest reading in the survey's history (spiresearch.com).

Citable stat · as of 2026-07-14
The same 2026 SPI benchmark recorded project margins at a five-year high of 37.7 percent, revenue leakage at a five-year low of 4.5 percent, and revenue growth of 5.2 percent, up from 4.6 percent the prior year and still well under the roughly 10 percent long-run rate SPI has historically tracked (spiresearch.com).

Citable stat · as of 2026-07-14
Deltek's 46th annual Clarity A&E study, published May 2025 from a survey of nearly 700 US and Canadian firms, reported operating profit on net revenue at a 10-year high of 21.4 percent, with 53 percent of firms using AI tools, up from 38 percent the prior year (deltek.com).

Citable stat · as of 2026-07-14
BLS reported professional and business services employment up 36,000 in June 2026, with 172,000 jobs added since the October 2025 low (bls.gov).

Citable stat · as of 2026-07-14
PSA ownership has consolidated under private equity: Accel-KKR merged Mavenlink and Kimble into Kantata (2021-2022), Vista Equity Partners put $100 million into BigTime (January 2022), and Certinia took a TA Associates minority investment in November 2024 with Haveli Investments retaining majority control (businesswire.com).

Citable stat · as of 2026-07-14
In a 2026 Kantata survey, 87 percent of professional services organizations said they plan to manage AI agents as part of their workforce; vendor survey, but a useful read on where PSA roadmaps are pointed (kantata.com).

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Best ERP for professional services: common questions

What is the best ERP for professional services companies?

Sage Intacct, NetSuite, and QuickBooks lead our professional services rankings as of July 2026. The reference mid-market services ledger. Ratings are anchored to our published system profiles, and every deviation from a system's cross-industry rating is explained on this page.

When does a professional services company not need an ERP?

When does the specialist-plus-QuickBooks stack stop working in professional services?

Which specialist systems should professional services companies evaluate?

9 specialists made our verified roster as of July 2026: Kantata (formerly Mavenlink and Kimble), Certinia Professional Services Cloud, Scoro, BigTime, Projectworks, Deltek Vantagepoint, Deltek Maconomy, ConnectWise PSA, and BQE CORE. Each is profiled on this page with what it is, who it fits, who it does not, and exactly where it ends, because the boundary is where buying mistakes happen.

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Sources (13), researched 2026-07-14

This page is educational decision support, not legal, accounting, or implementation advice. Specialist listings are research, not endorsements; no vendor pays for placement. Product capabilities and pricing change with vendor releases; verify current functionality in demos scripted around your own scenarios.