Company lists · Data refreshed September 2026

Top 25 Outsourced accounting services based in the United States

RevenueBase identified 4,813 outsourced accounting services headquartered in the United States as of September 2026 and tracks 27,884 professional contacts across them, including 8,582 with verified work emails. New York is the largest hub.

This list covers outsourced accounting 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 20, 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 20, 2026 86% judged on-target in blind review
4,813Companies
27,884Contacts tracked
8,582Verified emails
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The 25 largest outsourced accounting services based in the United States

Ranked by team size
Top 25 of 4,813 outsourced accounting services based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to outsourced accounting 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceAustin, TX, United StatesHQ checked Sep 20, 202610001+2,231 contacts →

Partial evidence

“OUR PEOPLE, YOUR PRIORITIES Streamline your finance & accounting team at 50% cost savings with a team as small as one.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceIrving, TX, United StatesHQ checked Sep 20, 2026201-500571 contacts →

Partial evidence

“Founded in 2007, Metriqe Solutions started out as a Hotel Accounting firm in USA.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceSalt Lake City, UT, United StatesHQ checked Sep 20, 2026201-500482 contacts →

Indirect evidence

“We specialize in providing full-service CFOs, controllers, and operational accountants to consult with our clients.”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceBeverly, MA, United StatesHQ checked Sep 20, 202651-200415 contacts →

Partial evidence

Outsourced Bookkeeping and Controller Services Supporting Strategies provides outsourced bookkeeping services, controller services and operational support to growing businesses.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceDover, DE, United StatesHQ checked Sep 20, 20261,001-5,000367 contacts →

Indirect evidence

“If you’re like us, you’re in business to do what you love, build great products, teams, and customer relationships.”

Source: RevenueBase Database · checked Sep 20, 2026
6Strong evidenceNew York, United StatesHQ checked Sep 20, 2026201-500339 contacts →

Strong evidence

“OHI is a specialized finance and real estate accounting outsourcing service provider with operations out of New Delhi (India) since 2006.”

Source: RevenueBase Database · checked Sep 20, 2026
7Strong evidenceCoral Springs, FL, United StatesHQ checked Sep 20, 2026201-500320 contacts →

Strong evidence

“Unison Globus is a global accounting outsourcing and offshore staffing partner dedicated to supporting CPA firms and accounting professionals.”

Source: RevenueBase Database · checked Sep 20, 2026
8Strong evidenceGranite Bay, CA, United StatesHQ checked Sep 20, 2026201-500298 contacts →

Strong evidence

“Montgomery Pacific Corporation (MontPac) is an outsourced accounting and financial management firm with personnel in the US, UK, and the Philippines.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceSan Antonio, TX, United StatesHQ checked Sep 20, 202651-200249 contacts →

Indirect evidence

“The true performance of your business shouldn’t be a mystery.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceRaleigh, NC, United StatesHQ checked Sep 20, 2026201-500231 contacts →

Indirect evidence

“Thomas, Judy and Tucker, P.A.”

Source: RevenueBase Database · checked Sep 20, 2026
11Strong evidenceDallas, TX, United StatesHQ checked Sep 20, 2026201-500168 contacts →

Strong evidence

“Infinity Globus, a Springline company, is a leading accounting outsourcing firm with over two decades of industry experience, providing tailored taxation and accounting services…”

Source: RevenueBase Database · checked Sep 20, 2026
12Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-200155 contacts →

Strong evidence

Accounting Outsourcing to Drive Growth for Global CPA Firms & MNCs.”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceTopeka, KS, United StatesHQ checked Sep 20, 20261,001-5,000146 contacts →

Partial evidence

“Mize CPAs is now part of Aprio, a Top 25 premier, full-service business advisory and accounting firm that’s passionate for what’s next.”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 20, 202651-200134 contacts →

Partial evidence

“Kruze Consulting is a leading provider of accounting, finance, HR and tax consulting to seed and venture capital funded startups.”

Source: RevenueBase Database · checked Sep 20, 2026
15Strong evidenceHonolulu, HI, United StatesHQ checked Sep 20, 202651-200134 contacts →

Strong evidence

“Vertaccount is a boutique Finance and Accounting Outsourcing provider with offices and affiliates in the United States, Australia, Singapore and the Philippines.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202651-200120 contacts →

Indirect evidence

“At Optima Office, we understand the challenges businesses face with financial management and HR services.”

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceDelaware, DE, United StatesHQ checked Sep 20, 2026501-1,000115 contacts →

Partial evidence

“Welcome to GLOCAL Accounting.”

Source: RevenueBase Database · checked Sep 20, 2026
18Strong evidenceWashington, DC, United StatesHQ checked Sep 20, 202651-200115 contacts →

Strong evidence

“Tarsus is a leading advisory firm in personalized outsourced CFO services, M&A, accounting, payroll, finance, and transactional services designed to help you scale your business…”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceMonroeville, PA, United StatesHQ checked Sep 20, 202651-200109 contacts →

Partial evidence

“Boston Financial Advisory Group is a one-stop-shop solution for all your Accounting and Financial consulting needs.”

Source: RevenueBase Database · checked Sep 20, 2026
20Partial evidenceDallas, TX, United StatesHQ checked Sep 20, 202651-200108 contacts →

Partial evidence

“CrystalVoxx offers a wide range of accounting and payroll services to suit diverse customer needs [Accounting & Payroll, EMR Integrated Transcription, Revenue Cycle Management,].”

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceIrving, TX, United StatesHQ checked Sep 20, 20261,001-5,00097 contacts →

Partial evidence

“Anand Tated a seasoned chartered accountant and the CEO of Pacific Accounting & Business Services (PABS) started PABS with his vision to customize modern solutions and deliver…”

Source: RevenueBase Database · checked Sep 20, 2026
22Partial evidenceFairfax, VA, United StatesHQ checked Sep 20, 202651-20095 contacts →

Partial evidence

“MCB is a full-service accounting firm celebrating nearly 80 very independent years of business in the Washington, DC metro area.”

Source: RevenueBase Database · checked Sep 20, 2026
23Partial evidenceSugar Land, TX, United StatesHQ checked Sep 20, 20261,001-5,00095 contacts →

Partial evidence

“As a leading solutions provider for more than 850 CPAs and Accounting firms, Entigrity specializes in building offshore teams, offering M&A advisory, coaching, and partnering with…”

Source: RevenueBase Database · checked Sep 20, 2026
24Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-20092 contacts →

Partial evidence

“We are one of the leading offshore companies that offer the best in the industry staffing solutions to CPAs, accounting firms, and other companies.”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceAtlanta, GA, United StatesHQ checked Sep 20, 202651-20089 contacts →

Partial evidence

“Acuity is the modern-day accounting organization built specifically for startups and small businesses.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 4,813 outsourced accounting services based in the United States

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Outsourced accounting services based in the United States at a glance

As of Sep 20, 2026
30.8%Verified-email coverage
5.8Average contacts per company
1-10Median size (employees)
3.0%Largest-city concentration · New York
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
3,929
11-50
709
51-200
126
201-500
23
501-1,000
3
1,001-5,000
8
5,001-10,000
1
10001+
2

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 4,813 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 outsourced accounting 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 “outsourced accounting 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 outsourced accounting 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 outsourced accounting 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, 8,582 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 20, 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 outsourced accounting 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 outsourced accounting services are there based in the United States?

RevenueBase identified 4,813 outsourced accounting 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?

Personiv, headquartered in Austin, tops this list with the largest team on record.

Which city has the most outsourced accounting services?

New York leads with 142 headquartered companies, followed by Los Angeles (84) and Houston (82).

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 8,582 verified decision-maker contacts tracked across these 4,813 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 20, 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.