Company lists · Data refreshed September 2026

Top 25 Accounting firm staff augmentation companies based in San Diego, United States

RevenueBase identified 59 accounting firm staff augmentation companies headquartered in San Diego, United States as of September 2026 and tracks 1,265 professional contacts across them, including 424 with verified work emails. New York is the largest hub.

This list covers accounting firm staff augmentation companies 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.

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
59Companies
1,265Contacts tracked
424Verified emails
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The 25 largest accounting firm staff augmentation companies based in San Diego, United States

Ranked by team size
Top 25 of 59 accounting firm staff augmentation companies based in San Diego, 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 firm staff augmentation 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202651-200137 contacts →

Partial evidence

“van den Boom & Associates is a life sciences focused firm that that specializes in supporting VC backed life science companies through outsourced finance, accounting, contracts…”

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202651-200102 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 27, 2026
3Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202651-20055 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, 2026
4Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202651-20052 contacts →

Partial evidence

“Gatto, Pope & Walwick LLP is a leading San Diego-based accounting firm.”

Source: RevenueBase Database · checked Sep 27, 2026
5Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202611-5049 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, 2026
6Indirect evidenceSan Diego, United StatesHQ checked Sep 27, 202651-20046 contacts →

Indirect evidence

“Mission: Christy White Associates’ promise to our clients is a worthwhile business relationship with responsive, trustworthy advisors and timely delivery of quality assurance…”

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202651-20044 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, 2026
8Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202611-5039 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, 2026
9Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202611-5021 contacts →

Indirect evidence

“Ternio Solutions Group is a specialty enterprise technology staffing group with over 20 years of combined experience in the EPM, ERP and BI spaces.”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202611-5020 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, 2026
11Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 27, 20261-1018 contacts →

Indirect evidence

“A-Star Staffing has been in business since We are the warmer, friendlier alternative to the large national firms.”

Source: RevenueBase Database · checked Sep 27, 2026
12Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202611-5017 contacts →

Partial evidence

“Louis Tommasino, CPA, is a dedicated, full-service accounting firm committed to enhancing the quality and range of accounting services available to the small business sector and…”

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202611-5016 contacts →

Indirect evidence

“Who are we?”

Source: RevenueBase Database · checked Sep 27, 2026
14Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202611-5014 contacts →

Partial evidence

“Transition Staffing Group is an award-winning staffing agency providing Technology & Accounting/Finance staffing solutions on a Temporary, Temporary-to-Hire and Direct Hire basis.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202611-5013 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, 2026
16Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202611-5012 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, 2026
17Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 27, 20261-109 contacts →

Indirect evidence

“BusinesStaff is a leading staffing firm in Southern California and works on a National level.”

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202611-509 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, 2026
19Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202611-507 contacts →

Partial evidence

“Simplexity Services provides accounting and back-office services for startups and fast growing companies.”

Source: RevenueBase Database · checked Sep 27, 2026
20Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202611-506 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, 2026
21Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202611-505 contacts →

Partial evidence

“Blum & Clark Certified Public Accountants, LLP is a full service tax and accounting firm based in San Diego, California.”

Source: RevenueBase Database · checked Sep 27, 2026
22Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 20261-104 contacts →

Partial evidence

“Matranga & Company is a San Diego CPA firm which provides a wide range of accounting services to enterprising businesses and individuals principally located in Southern California.”

Source: RevenueBase Database · checked Sep 27, 2026
23Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202611-504 contacts →

Partial evidence

“Ted Elliott & Associates specializes in the placement of finance and accounting professionals on a permanent basis.”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 27, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
25Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 27, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 59 accounting firm staff augmentation companies based in San Diego, United States

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Accounting firm staff augmentation companies based in San Diego, United States at a glance

As of Sep 27, 2026
33.5%Verified-email coverage
21.4Average contacts per company
1-10Median size (employees)
411.9%Largest-city concentration · New York
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
30
11-50
22
51-200
7

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 59 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 firm staff augmentation 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 Diego, United States whose own description of what they do matches “accounting firm staff augmentation 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 firm staff augmentation 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 firm staff augmentation companies, 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, 424 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 firm staff augmentation 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 firm staff augmentation 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 firm staff augmentation companies are there based in San Diego, United States?

RevenueBase identified 59 accounting firm staff augmentation companies 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?

VAN DEN Boom & Associates LLC, headquartered in San Diego, tops this list with the largest team on record.

Which city has the most accounting firm staff augmentation companies?

New York leads with 243 headquartered companies, followed by Houston (154) and Los Angeles (122).

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 424 verified decision-maker contacts tracked across these 59 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.