Company lists · Data refreshed September 2026

Top 25 Law firm controller services based in the United States

Name: Law firm controller services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,507 companies tracked

RevenueBase identified 1,507 law firm controller services headquartered in the United States as of September 2026 and tracks 7,305 professional contacts across them, including 1,999 with verified work emails. Houston is the largest hub.

This list covers law firm controller services 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

1,507Companies

7,305Contacts tracked

1,999Verified emails

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The 25 largest law firm controller services based in the United States

Ranked by team size

Top 25 of 1,507 law firm controller services based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to law firm controller services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Knovaone	Indirect evidence	West Palm Beach, FL, United StatesHQ checked Sep 28, 2026	501-1,000	305 contacts →
	Indirect evidence “Founded in 2012 and headquartered in Bonita Springs, Florida, Knova One – A TRAKAmerica company, is part of a leading legal and financial services group with a strong U.S.” Source: RevenueBase Database · checked Sep 28, 2026
2	Accounting Solutions	Indirect evidence	Houston, PA, United StatesHQ checked Sep 28, 2026	n/a	149 contacts →
	Indirect evidence “Accounting Solutions provides a wide range of services to individuals and businesses in a variety of industries.” Source: RevenueBase Database · checked Sep 28, 2026
3	HOW To Manage A Small LAW Firm	Indirect evidence	Coconut Grove, FL, United StatesHQ checked Sep 28, 2026	51-200	132 contacts →
	Indirect evidence “Happy lawyers make more money.” Source: RevenueBase Database · checked Sep 28, 2026
4	Plumb Bill PAY	Partial evidence	La Jolla, CA, United StatesHQ checked Sep 28, 2026	51-200	82 contacts →
	Partial evidence “Founded in 1996, Plumb Bill Pay started as an outsourced accounting firm with a primary focus on providing fractional Controller-level services to small and medium-sized companies.” Source: RevenueBase Database · checked Sep 28, 2026
5	Decimal	Indirect evidence	Fully Remote, United StatesHQ checked Sep 28, 2026	51-200	74 contacts →
	Indirect evidence “We handle the financial operations so small businesses don’t have to.” Source: RevenueBase Database · checked Sep 28, 2026
6	Kaizen Cpas Advisors	Indirect evidence	Antioch, IL, United StatesHQ checked Sep 28, 2026	51-200	72 contacts →
	Indirect evidence “We help business owners get out of the frustration that comes with messy or unclear financials and replace it with systems, consistency, and advice they can actually rely on.” Source: RevenueBase Database · checked Sep 28, 2026
7	Breakwater Accounting Advisory Corp	Indirect evidence	Wilmington, DE, United StatesHQ checked Sep 28, 2026	51-200	66 contacts →
	Indirect evidence “We’re financial and back office experts who understand that every business is unique.” Source: RevenueBase Database · checked Sep 28, 2026
8	Smoker & Company LLC	Indirect evidence	Leola, PA, United StatesHQ checked Sep 28, 2026	51-200	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, 2026
9	Ledgergurus	Indirect evidence	American Fork, UT, United StatesHQ checked Sep 28, 2026	51-200	44 contacts →
	Indirect evidence “LedgerGurus enables small businesses to increase revenues and profits through specialized and affordable accounting services.” Source: RevenueBase Database · checked Sep 28, 2026
10	Nexfirm	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	43 contacts →
	Partial evidence “NexFirm provides outsourced back office services to small and midsized law firms.” Source: RevenueBase Database · checked Sep 28, 2026
11	Quality Back Office	Indirect evidence	Naperville, IL, United StatesHQ checked Sep 28, 2026	11-50	42 contacts →
	Indirect evidence “QBO is a full service accounting firm providing back office services to all types of businesses.” Source: RevenueBase Database · checked Sep 28, 2026
12	Accounting Resources INC	Indirect evidence	Glastonbury, CT, United StatesHQ checked Sep 28, 2026	51-200	40 contacts →
	Indirect evidence “ARI offers comprehensive accounting, bookkeeping and human resources support services to small- to medium-size businesses and non-profit organizations.” Source: RevenueBase Database · checked Sep 28, 2026
13	4l Managed Accounting LLC	Partial evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	51-200	39 contacts →
	Partial 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, 2026
14	Prudent Accountants	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 28, 2026	11-50	38 contacts →
	Indirect evidence “Prudent Accountants is a smart organization, conceived and designed to add value to your business.” Source: RevenueBase Database · checked Sep 28, 2026
15	BAY Business Group LLC	Indirect evidence	Falls Church, VA, United StatesHQ checked Sep 28, 2026	11-50	37 contacts →
	Indirect evidence “A premier outsourced accounting and finance firm located in the Washington, D.C.” Source: RevenueBase Database · checked Sep 28, 2026
16	Black INK Business Services	Indirect evidence	Brooklyn, United StatesHQ checked Sep 28, 2026	11-50	35 contacts →
	Indirect evidence “Who We Are.” Source: RevenueBase Database · checked Sep 28, 2026
17	True North LLC	Indirect evidence	East Liverpool, OH, United StatesHQ checked Sep 28, 2026	51-200	35 contacts →
	Indirect evidence “Founded in 2012, True North LLC is a premier provider of essential business services, catering to clients across North America.” Source: RevenueBase Database · checked Sep 28, 2026
18	Cerboni Accounting And Financial Services	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	31 contacts →
	Indirect evidence “Cerboni is an All-in-One Bookkeeping and Financial Solutions firm that specializes in the Restaurant industry.” Source: RevenueBase Database · checked Sep 28, 2026
19	DMS Management Solutions	Indirect evidence	Westlake, OH, United StatesHQ checked Sep 28, 2026	11-50	31 contacts →
	Indirect evidence “DMS Management Solutions offers small to mid-sized businesses a wide range of affordable business services that save time, money and deliver fact-based results.” Source: RevenueBase Database · checked Sep 28, 2026
20	Booksmarts Accounting	Indirect evidence	Kaysville, UT, United StatesHQ checked Sep 28, 2026	11-50	28 contacts →
	Indirect evidence “How good would it feel to have full confidence in your financial data, never have to hire and train another CFO, and have a team of advisors saving you precious dollars in this…” Source: RevenueBase Database · checked Sep 28, 2026
21	CFO Rick Inc. Your Financial Partner	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	11-50	28 contacts →
	Indirect 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, 2026
22	Cocountant	Partial evidence	Cambridge, MA, United StatesHQ checked Sep 28, 2026	11-50	28 contacts →
	Partial evidence “CoCountant delivers controller-led bookkeeping and accounting for startups and growing businesses.” Source: RevenueBase Database · checked Sep 28, 2026
23	DUE Diligence US Corp	Indirect evidence	Coral Gables, FL, United StatesHQ checked Sep 28, 2026	11-50	28 contacts →
	Indirect evidence “Due Diligence is an online accounting and consulting service that saves you time so you can focus on what is most important to your business.” Source: RevenueBase Database · checked Sep 28, 2026
24	Mybookees	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	51-200	26 contacts →
	Indirect evidence “We specialize in bookkeeping with easy-to-understand reporting, financial statement analysis for strategic decision-making, state and local tax compliance, payroll processing, BI…” Source: RevenueBase Database · checked Sep 28, 2026
25	Omotayo CPA LLC	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	11-50	25 contacts →
	Indirect evidence “We can provide qualified accounting professionals who can ensure that your financial records are maintained correctly and accurately.” Source: RevenueBase Database · checked Sep 28, 2026

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: law firm controller services. 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 law firm controller services.
Partial evidence: Its own public description names part of law firm controller services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name law firm controller services. 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 1,507 law firm controller services based in the United States

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Law firm controller services based in the United States at a glance

As of Sep 28, 2026

27.4%Verified-email coverage

4.8Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · Houston

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,231

11-50

230

51-200

201-500

501-1,000

5,001-10,000

10001+

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 1,507 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 law firm controller services, 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 “law firm controller services”. 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 law firm controller services), 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 law firm controller services, 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, 1,999 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.

Law firm controller services by metro

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 law firm controller services, 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 law firm controller services are there based in the United States?

RevenueBase identified 1,507 law firm controller services 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?

Knovaone, headquartered in West Palm Beach, tops this list with the largest team on record.

Which city has the most law firm controller services?

Houston leads with 37 headquartered companies, followed by New York (31) and Los Angeles (24).

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 1,999 verified decision-maker contacts tracked across these 1,507 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.