Company lists · Data refreshed September 2026
Top 25 Professional services networks based in the United States
RevenueBase identified 3,510 professional services networks headquartered in the United States as of September 2026 and tracks 442,574 professional contacts across them, including 182,653 with verified work emails. New York is the largest hub.
This list covers professional services networks headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest professional services networks based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 558 contacts → | ||||
Indirect evidence “Bennett Thrasher provides proven guidance for financial confidence through premier tax, audit, advisory, and outsourcing solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 490 contacts → | ||||
Indirect evidence “Scrubbed delivers partner-led accounting, tax, advisory, and audit services to middle-market companies that want a financial partner they can trust.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 435 contacts → | ||||
Indirect evidence “Founded in 1980 as a tech-forward accounting practice, Lutz has grown into Nebraska’s largest locally owned business solutions firm.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 296 contacts → | ||||
Indirect evidence “BRC has been serving clients and their businesses throughout the Southeast for more than 75 years.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 248 contacts → | ||||
Partial evidence “Crowe Horwath International Crowe Horwath International, ranked among the top 10 global accounting networks, consists of more than 200 independent accounting and advisory services…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 224 contacts → | ||||
Indirect evidence “ATA is one of the largest accounting and consulting firms in the Mid-South and was named the ninth (9th) largest accounting firm in the State of Tennessee by American Business…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 207 contacts → | ||||
Indirect evidence “Tickmarks Inc.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 187 contacts → | ||||
Indirect evidence “Hutchinson and Bloodgood LLP is a leading firm of Certified Public Accountants and Consultants providing Tax Planning, Auditing, Technology Consulting, Human Resources and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 173 contacts → | ||||
Indirect evidence “When every component of your business is working together in concert, those connections can create powerful and positive change.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 156 contacts → | ||||
Indirect evidence “Duffy Kruspodin, LLP is a Southern California CPA and advisory firm built on long-standing relationships, dependable guidance, and deep financial and business expertise.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 153 contacts → | ||||
Indirect evidence “Andrews Hooper Pavlik PLC (AHP) was founded in 1993 by three partners of Ernst & Young.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 114 contacts → | ||||
Partial evidence “Current is the new name for Crete Professionals Alliance.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 96 contacts → | ||||
Indirect evidence “Known as the Entrepreneur’s CPA, Wegmann Dazet is one of the largest locally owned CPA/Business Advisory firms based in the Gulf South.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 91 contacts → | ||||
Indirect evidence “Since 1959, our business and individual clients have thrived on our expertise and vision.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 91 contacts → | ||||
Indirect evidence “PrimeGlobal is an award-winning association of accounting and business advisory firms comprising over 320 highly successful member firms with a combined annual revenue of US$7.2…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 88 contacts → | ||||
Indirect evidence “Celebrating 50 years, Urish Popeck & Co.(UPCO) is a Public Company Accounting Oversight Board (PCAOB) and Canadian Public Accountability Board (CPAB) registered accounting and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 87 contacts → | ||||
Indirect evidence “Founded in 1939, Condley and Company, L.L.P.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 87 contacts → | ||||
Indirect evidence “HRSS is a full-service accounting, tax, audit, and advisory firm with 40 years of experience serving businesses and individuals, with a focus on middle-market clients.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 76 contacts → | ||||
Indirect evidence “The Mission of SFW Partners, LLC is to be a highly respected, ethically guided certified public accounting firm serving as a trusted business advisor to our clients while…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 76 contacts → | ||||
Indirect evidence “At M|H, we are committed to leading the accounting industry in transformative solutions that drive our client’s success by implementing innovative technologies and embracing…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 76 contacts → | ||||
Indirect evidence “KHA is a growing public accounting firm in central DFW that provides assurance, tax, and strategic management consulting services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 74 contacts → | ||||
Indirect evidence “SST Accountants & Consultants provides tax, audit, accounting, and business advisory services to privately-held businesses and individuals.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 73 contacts → | ||||
Indirect evidence “MSPC Certified Public Accountants and Advisors, P.C.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 70 contacts → | ||||
Partial evidence “Vesta is a CPA-led, professional service firm where an inspired team places clients first.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 66 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: professional services networks. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names professional services networks.
- Partial evidence
- Its own public description names part of professional services networks, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name professional services networks. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 3,510 professional services networks based in the United States
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Professional services networks based in the United States at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,510 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among professional services networks, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “professional services networks”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names professional services networks), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among professional services networks, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 182,653 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 29, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Professional services networks by metro
- Professional services networks in New York137
- Professional services networks in Chicago63
- Professional services networks in Houston54
- Professional services networks in Los Angeles51
- Professional services networks in Atlanta47
- Professional services networks in Miami44
- Professional services networks in Dallas32
- Professional services networks in San Diego31
- Professional services networks in San Francisco29
- Professional services networks in Washington29
- Professional services networks in Irvine28
- Professional services networks in Austin27
- Professional services networks in Tampa25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names professional services networks, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many professional services networks are there based in the United States?
RevenueBase identified 3,510 professional services networks headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Bennett Thrasher, headquartered in Atlanta, tops this list with the largest team on record.
Which city has the most professional services networks?
New York leads with 137 headquartered companies, followed by Chicago (63) and Houston (54).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 182,653 verified decision-maker contacts tracked across these 3,510 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.
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Professional services networks by geography
- Professional services networks based in Buenos Aires, Argentina
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- Professional services networks based in Brisbane, Australia
- Professional services networks based in Melbourne, Australia
- Professional services networks based in Sydney, Australia
- Professional services networks based in Wien, Austria
- Professional services networks based in Dhaka, Bangladesh
- Professional services networks based in Belo Horizonte, Brazil
- Professional services networks based in Campinas, Brazil
- Professional services networks based in Curitiba, Brazil
- Professional services networks based in Fortaleza, Brazil
- Professional services networks based in Porto Alegre, Brazil
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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