Company lists · Data refreshed September 2026
Top 25 Accounting bpo firms based in San Diego, United States
RevenueBase identified 118 accounting bpo firms headquartered in San Diego, United States as of September 2026 and tracks 1,223 professional contacts across them, including 374 with verified work emails. Across the United States, New York is the largest hub for this category (310 companies); San Diego has 118.
This list covers accounting bpo firms headquartered in San Diego, 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.
The 25 largest accounting bpo firms based in San Diego, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 120 contacts → | ||||
Indirect evidence “At Optima Office, we understand the challenges businesses face with financial management and HR services.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 55 contacts → | ||||
Partial evidence “At PBO Advisory Group, we assess, outsource, and advise in the areas of accounting & finance, human resources, human capital consulting, and business operations to increase…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 52 contacts → | ||||
Partial evidence “Gatto, Pope & Walwick LLP is a leading San Diego-based accounting firm.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 49 contacts → | ||||
Partial evidence “Leaf & Cole, LLP is one of the largest single office accounting firms in San Diego, California - America's Finest City.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 44 contacts → | ||||
Indirect evidence “LEVITZACKS has been providing outstanding audit, review, compilation, domestic and international tax, management information, and management advisory services since 1964.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 39 contacts → | ||||
Partial evidence “Lohman & Associates is a professional services firm that provides finance and accounting advisory services to early-stage and growing companies.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 20 contacts → | ||||
Partial evidence “AB Tawil & Associates is a San Diego based and fully bilingual (English/Spanish) accounting firm founded in 2006; that offers a full array of accounting, tax, consulting, and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 20 contacts → | ||||
Partial evidence “Back Office Support Solutions is an outsourced accounting and operations firm that creates a tailored approach to support each client's specific needs in accounting/bookkeeping…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 19 contacts → | ||||
Indirect evidence “When your business needs actionable insights from the story your financial data is telling you, turn to us.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 16 contacts → | ||||
Indirect evidence “Who are we?” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 13 contacts → | ||||
Indirect evidence “With over a 100 years of experience, we have worked help companies focus on their core business while we streamline all the work that consumes your biggest resource, TIME!” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 12 contacts → | ||||
Indirect evidence “Do you have a handle on how much your company made or lost in the last month?” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 12 contacts → | ||||
Partial evidence “Profitwise Accounting & Advisory is a cloud-based accounting firm helping MSPs and growth-focused businesses gain greater financial clarity, confidence, and support through…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 10 contacts → | ||||
Partial evidence “Twin Oaks LLP provides a comprehensive range of accounting and financial services to businesses across various industries.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 9 contacts → | ||||
Indirect evidence “RG Alliance is an outsourced back-office support and bookkeeping firm based in San Diego, California.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 9 contacts → | ||||
Partial evidence “Welcome to Green Path Partners LLP, where we redefine the standards of excellence in accounting and taxation services.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 9 contacts → | ||||
Indirect evidence “Our goal is to provide you with the information and tools that help you build on your success and to have a measurable positive impact on your professional and personal financial…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 7 contacts → | ||||
Partial evidence “Simplexity Services provides accounting and back-office services for startups and fast growing companies.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 7 contacts → | ||||
Partial evidence “Here at RISE Consulting Group, we offer outsourced accounting, financial, and other support services for privately held businesses, providing timely, accurate and actionable…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 contacts → | ||||
Partial evidence “An accounting and bookkeeping services company with offices in California, Arizona, and Calgary, Alberta Canada.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 6 contacts → | ||||
Partial evidence “CASHUK WISEMAN GOLDBERG BIRNBAUM & SALEM LLP is an accounting company based out of 2851 CAMINO DEL RIO SOUTH SUITE 410, SAN DIEGO, California, United States.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 contacts → | ||||
Indirect evidence “Feeling overwhelmed about your business finances?” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 5 contacts → | ||||
Partial evidence “For more than 25 years we have worked in a variety of industries where we have seen the worst and the best of accounting.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 contacts → | ||||
Indirect evidence “Welcome to the integrated future of financial excellence – Hedgi AI meets Schwartz & Schwartz, your expert advisors and innovative solution providers in one.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Indirect evidence “San Diego CPA firm and accountant, Yenor and Associates is a Certified Public Accountant offering tax return services, tax preparation services, bookkeeping services, CFO services…” Source: RevenueBase Database · checked Sep 27, 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: accounting bpo 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 accounting bpo firms.
- Partial evidence
- Its own public description names part of accounting bpo firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name accounting bpo 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 118 accounting bpo firms based in San Diego, United States
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Accounting bpo firms based in San Diego, United States at a glance
As of Sep 27, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for San Diego, so it is reported there. Company counts and contact totals on this page are exact for San Diego, over 118 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 bpo 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 San Diego, United States whose own description of what they do matches “accounting bpo 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 accounting bpo 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 accounting bpo firms, and records with no verified work email. Companies headquartered outside San Diego 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, 374 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 bpo firms by metro in the United States
- Accounting bpo firms in New York310
- Accounting bpo firms in Houston206
- Accounting bpo firms in Los Angeles196
- Accounting bpo firms in Miami141
- Accounting bpo firms in Austin139
- Accounting bpo firms in Atlanta135
- Accounting bpo firms in Chicago133
- Accounting bpo firms in Dallas116
- Accounting bpo firms in Denver97
- Accounting bpo firms in Orlando77
- Accounting bpo firms in Phoenix74
- Accounting bpo firms in San Francisco72
- Accounting bpo firms in Tampa70
- Accounting bpo firms in Portland69
- Accounting bpo firms in Las Vegas67
- Accounting bpo firms in Sheridan62
- Accounting bpo firms in Charlotte58
- Accounting bpo firms in San Antonio58
- Accounting bpo firms in Irvine57
- Accounting bpo firms in Seattle57
- Accounting bpo firms in Columbus52
- Accounting bpo firms in Raleigh50
- Accounting bpo firms in Washington49
- Accounting bpo firms in Jacksonville46
- Accounting bpo firms in Minneapolis43
- Accounting bpo firms in Boston41
- Accounting bpo firms in Philadelphia41
- Accounting bpo firms in Salt Lake City39
- Accounting bpo firms in Wilmington38
- Accounting bpo firms in Nashville37
- Accounting bpo firms in San Jose36
- Accounting bpo firms in Tucson36
- Accounting bpo firms in Sacramento34
- Accounting bpo firms in Indianapolis33
- Accounting bpo firms in Oklahoma City33
- Accounting bpo firms in Scottsdale33
- Accounting bpo firms in Baltimore32
- Accounting bpo firms in Albuquerque31
- Accounting bpo firms in Fort Lauderdale31
- Accounting bpo firms in Greenville31
- Accounting bpo firms in Birmingham30
- Accounting bpo firms in Colorado Springs30
- Accounting bpo firms in Boca Raton29
- Accounting bpo firms in Cincinnati29
- Accounting bpo firms in Kansas City29
- Accounting bpo firms in Frisco28
- Accounting bpo firms in Knoxville28
- Accounting bpo firms in Plano28
- Accounting bpo firms in Louisville27
- Accounting bpo firms in Newark27
- Accounting bpo firms in Pittsburgh27
- Accounting bpo firms in Bellevue26
- Accounting bpo firms in Canton26
- Accounting bpo firms in Glendale26
- Accounting bpo firms in Lexington26
- Accounting bpo firms in Omaha26
- Accounting bpo firms in Rochester26
- Accounting bpo firms in Springfield26
- Accounting bpo firms in Charleston25
- Accounting bpo firms in Vancouver25
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 bpo 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 accounting bpo firms are there based in San Diego, United States?
RevenueBase identified 118 accounting bpo firms headquartered in San Diego, 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?
Optima Office, INC, headquartered in San Diego, tops this list with the largest team on record.
Which city in the United States has the most accounting bpo firms?
New York leads the United States with 310 headquartered companies, followed by Houston (206) and Los Angeles (196). San Diego has 118.
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 374 verified decision-maker contacts tracked across these 118 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.
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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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