Company lists · Data refreshed September 2026

Top 25 Accounting business process outsourcing companies based in San Francisco, United States

Name: Accounting business process outsourcing companies based in San Francisco, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 73 companies tracked

RevenueBase identified 73 accounting business process outsourcing companies headquartered in San Francisco, United States as of September 2026 and tracks 924 professional contacts across them, including 204 with verified work emails. Across the United States, New York is the largest hub for this category (325 companies); San Francisco has 73.

This list covers accounting business process outsourcing companies headquartered in San Francisco, 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 27, 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 27, 2026 86% judged on-target in blind review

73Companies

924Contacts tracked

204Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest accounting business process outsourcing companies based in San Francisco, United States

Ranked by team size

Top 25 of 73 accounting business process outsourcing companies based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to accounting business process outsourcing companies: 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	Bench Accounting By Mainstreet	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	201-500	366 contacts →
	Indirect evidence “At Bench by Mainstreet, we believe small business owners deserve more than just software - they deserve real financial support.” Source: RevenueBase Database · checked Sep 27, 2026
2	Sutro LI	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	51-200	68 contacts →
	Indirect evidence “Sutro Li is a full service financial management team that provides bookkeeping and financial advisory services to non-profits and mission-based businesses.” Source: RevenueBase Database · checked Sep 27, 2026
3	Stride	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	38 contacts →
	Partial evidence “Stride is an outsourced services firm providing timely, accurate and actionable bookkeeping, accounting, CFO services, and recruiting for professional service firms including…” Source: RevenueBase Database · checked Sep 27, 2026
4	CFO Rick Inc. Your Financial Partner	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	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 27, 2026
5	Global Finance Teams	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	51-200	28 contacts →
	Strong evidence “GFT is a leading accounting and finance outsourcing company, dedicated to empowering businesses around the world with top-notch talent.” Source: RevenueBase Database · checked Sep 27, 2026
6	Accountaxpert	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	22 contacts →
	Indirect evidence “Beyond Numbers.” Source: RevenueBase Database · checked Sep 27, 2026
7	Quanta	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	21 contacts →
	Partial evidence “Quanta is the accounting platform and full-service accounting team for software companies that need their finances accurate, explainable, and always ready for decisions.” Source: RevenueBase Database · checked Sep 27, 2026
8	Momentum Accounting	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	1-10	13 contacts →
	Partial evidence “Momentum Accounting is a modern outsourced accounting and advisory firm that helps founder-led businesses get control of their cash flow, understand their financials, and make…” Source: RevenueBase Database · checked Sep 27, 2026
9	A To Z Bookkeeping Services, INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	10 contacts →
	Indirect evidence “A to Z Bookkeeping Services was founded with the goal of offering comprehensive financial services to small businesses.” Source: RevenueBase Database · checked Sep 27, 2026
10	Consulting Innovators Consolyx	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	10 contacts →
	Indirect evidence “Consulting Innovators is building CONSOLYX, an AI-enabled Financial Intelligence Platform designed to transform how organizations manage consolidation, reporting, planning, and…” Source: RevenueBase Database · checked Sep 27, 2026
11	Stash Bookkeeping	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	8 contacts →
	Indirect evidence “Stash Bookkeeping is a standout company renowned for its top-tier accountancy, bookkeeping, payroll, and tax preparation services tailored to clients' needs.” Source: RevenueBase Database · checked Sep 27, 2026
12	AFINO	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	7 contacts →
	Partial evidence “At Afino, we simplify your financial management with expert services in bookkeeping, accounting, tax preparation, R&D tax credits, and CFO services.” Source: RevenueBase Database · checked Sep 27, 2026
13	Zinance	Indirect evidence	San Francisco, United StatesHQ checked Sep 27, 2026	11-50	7 contacts →
	Indirect evidence “Bookkeeping, Taxes and finance ops for fast-growing companies.” Source: RevenueBase Database · checked Sep 27, 2026
14	Zumifi	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	1-10	6 contacts →
	Indirect evidence “FOCUSED ON YOUR FINANCES.” Source: RevenueBase Database · checked Sep 27, 2026
15	Lopez-Iwata & Associates	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	1-10	4 contacts →
	Indirect evidence “We’re a passionate team of bookkeepers, management consultants, and financial-ops specialists who love helping businesses thrive.” Source: RevenueBase Database · checked Sep 27, 2026
16	Bluebird Bookkeeping SF	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	1-10	4 contacts →
	Indirect evidence “Previously dba Ana Duffy, CMA.” Source: RevenueBase Database · checked Sep 27, 2026
17	SEA View Partners	Indirect evidence	San Francisco, United StatesHQ checked Sep 27, 2026	11-50	4 contacts →
	Indirect evidence “In today's competitive business environment, companies are constantly looking for ways to do more with less.” Source: RevenueBase Database · checked Sep 27, 2026
18	BBK	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	4 contacts →
	Partial evidence “BBK provides “new school” accounting services to startups and growing small businesses.” Source: RevenueBase Database · checked Sep 27, 2026
19	Apex Bookkeeping	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	1-10	4 contacts →
	Indirect evidence “Bookkeeping and Business Consulting, specializing in small to medium sized companies.” Source: RevenueBase Database · checked Sep 27, 2026
20	Stallcup & Associates Cpas	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	1-10	3 contacts →
	Partial evidence “Stallcup & Associates CPAs simplify the things you’d rather not spend time on - accounting, bookkeeping, and taxes.” Source: RevenueBase Database · checked Sep 27, 2026
21	Soprocfo	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	1-10	3 contacts →
	Partial evidence “SoProCFO allows enterprises to outsource finance and accounting as an alternative to building and maintaining an internal department.” Source: RevenueBase Database · checked Sep 27, 2026
22	Balanced Practice, INC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	1-10	3 contacts →
	Partial evidence “Balanced Practice is an accounting firm focused on empowering business owners and individuals to grow their wealth and maintain financial stability, in a wholesome, balanced…” Source: RevenueBase Database · checked Sep 27, 2026
23	Cynthia Black Books	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	1-10	2 contacts →
	Indirect evidence “Cynthia Black Books is a financial and business support services company headquartered in San Francisco, California.” Source: RevenueBase Database · checked Sep 27, 2026
24	Boardroom Accounting	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
25	MAH & Company, An Accountancy Corporation	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 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: accounting business process outsourcing companies. 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 accounting business process outsourcing companies.
Partial evidence: Its own public description names part of accounting business process outsourcing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name accounting business process outsourcing companies. 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 73 accounting business process outsourcing companies based in San Francisco, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 204 reachable decision-makers.

Free signup · no credit card

View the full list →

Accounting business process outsourcing companies based in San Francisco, United States at a glance

As of Sep 27, 2026

22.1%Verified-email coverage

12.7Average contacts per company

1-10Median size (employees)

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for San Francisco, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 73 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 accounting business process outsourcing companies, 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 San Francisco, United States whose own description of what they do matches “accounting business process outsourcing companies”. 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 accounting business process outsourcing companies), 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 accounting business process outsourcing companies, and records with no verified work email. Companies headquartered outside San Francisco 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, 204 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 27, 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.

Accounting business process outsourcing companies by metro in the United States

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 accounting business process outsourcing companies, 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 accounting business process outsourcing companies are there based in San Francisco, United States?

RevenueBase identified 73 accounting business process outsourcing companies headquartered in San Francisco, 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?

Bench Accounting By Mainstreet, headquartered in San Francisco, tops this list with the largest team on record.

Which city in the United States has the most accounting business process outsourcing companies?

New York leads the United States with 325 headquartered companies, followed by Houston (243) and Los Angeles (187). San Francisco has 73.

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 204 verified decision-maker contacts tracked across these 73 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 27, 2026.

Ready to reach these companies? Verified emails and direct dials for all 73 accounting business process outsourcing companies based in San Francisco, United States. Start with a free account, no credit card.

Download this list →

Related lists

Accounting business process outsourcing companies by geography

Browse the directory

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.