Company lists · Data refreshed September 2026
Top 25 Legal billing and accounting firms based in the United States
RevenueBase identified 598 legal billing and accounting firms headquartered in the United States as of September 2026 and tracks 6,704 professional contacts across them, including 2,327 with verified work emails. New York is the largest hub.
This list covers legal billing and accounting firms 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 28, 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 legal billing and accounting firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,043 contacts → | ||||
Partial evidence “QuisLex is an award-winning alternative legal services provider (ALSP) helping corporate legal departments and law firms manage risk, control cost, and drive efficiency across…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 837 contacts → | ||||
Partial evidence “Filevine is changing the way legal work gets done for law practitioners and their clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 802 contacts → | ||||
Indirect evidence “Aderant is dedicated to helping law firms run a better business.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 739 contacts → | ||||
Indirect evidence “Elite is a leading independent technology company that helps law firms drive profitability through improved operational effectiveness, increased efficiency, and greater visibility…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 168 contacts → | ||||
Strong evidence “ProfitSolv is a comprehensive suite of billing, payments, and software solutions for legal, accounting, and other professional services firms including consulting, architecture…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 121 contacts → | ||||
Indirect evidence “ALB is a leading and innovative cloud and web-based platform built by industry experts and lawyers for assisting law firms across the world.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 102 contacts → | ||||
Indirect evidence “We offer a multitude of services ranging from traditional compilations, audits, reviews and tax returns, to other specialties, such as personal financial planning, retirement plan…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 89 contacts → | ||||
Partial evidence “Lexicon is a legal services and technology provider with deep expertise in the legal industry.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 70 contacts → | ||||
Partial evidence “Zebraworks helps law firms accelerate every stage of cash flow by eliminating barriers with automated billing workflows that accelerate collections and deliver seamless online…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 61 contacts → | ||||
Indirect evidence “Smoker & Company has built an outstanding reputation for providing the highest standards of quality service to our clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 50 contacts → | ||||
Partial evidence “Sherman Atlas provides the highest caliber of legal expertise in a collaborative and efficient manner without losing sight of what is important.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 50 contacts → | ||||
Indirect evidence “Scan Logic develops AI-powered solutions that automate and simplify law firm finance.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 42 contacts → | ||||
Indirect evidence “Founded in 1975 by Hector A.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 39 contacts → | ||||
Strong evidence “4L Managed Accounting LLC (formerly 4L Law Firm Services) is the leading provider of accounting department services to midsize law firms - general accounting, client billing…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 36 contacts → | ||||
Strong evidence “Tabs3 Software provides a reliable, easy-to-use, seamlessly integrated suite of software products for law firms and legal professionals, ranging from billing to practice…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 30 contacts → | ||||
Indirect evidence “Miod and Company, LLP provides assistance in all your litigation, financial, and business affairs.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 30 contacts → | ||||
Indirect evidence “Welcome to Kiyohara & Takahashi, LLP your trusted partner in financial success.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 29 contacts → | ||||
Partial evidence “CosmoLex offers an end-to-end solution for law firms, combining matter management, firm accounting, invoicing, payments, and more.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 28 contacts → | ||||
Partial evidence “Accounting is what we do best.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 28 contacts → | ||||
Partial evidence “CFO Rick provides a comprehensive suite of accounting services tailored to meet the unique needs of your business.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 26 contacts → | ||||
Strong evidence “LegalBillReview.com provides comprehensive legal bill review services for corporate legal teams aimed at identifying and correcting billing errors, along with non-compliant…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 25 contacts → | ||||
Partial evidence “ShindelRock is a Metro Detroit accounting firm offering a broad array of services to individuals and business owners, including accounting, auditing, tax, litigation support…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 23 contacts → | ||||
Partial evidence “Lawhorn CPA Group, LLC is a niche accounting, consulting and tax practice serving the small business community nationwide.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 23 contacts → | ||||
Strong evidence “LeanLaw is a cloud-based legal timekeeping and billing software designed by lawyers for lawyers.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 23 contacts → | ||||
Indirect evidence “JC & Company LLP is a professional firm committed to serving the needs of our clients.” Source: RevenueBase Database · checked Sep 28, 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: legal billing and accounting firms. 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 legal billing and accounting firms.
- Partial evidence
- Its own public description names part of legal billing and accounting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name legal billing and accounting firms. 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 598 legal billing and accounting firms based in the United States
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Legal billing and accounting firms based in the United States at a glance
As of Sep 28, 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 598 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 legal billing and accounting firms, 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 “legal billing and accounting firms”. 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 legal billing and accounting firms), 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 legal billing and accounting firms, 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, 2,327 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 28, 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.
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 legal billing and accounting firms, 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 legal billing and accounting firms are there based in the United States?
RevenueBase identified 598 legal billing and accounting firms 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?
Quislex, headquartered in New York, tops this list with the largest team on record.
Which city has the most legal billing and accounting firms?
New York leads with 22 headquartered companies, followed by Atlanta (12) and Miami (9).
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 2,327 verified decision-maker contacts tracked across these 598 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 28, 2026.
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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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