Company lists · Data refreshed October 2026

Top 25 International tax accounting firms based in Irvine, United States

Name: International tax accounting firms based in Irvine, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 55 companies tracked

RevenueBase identified 55 company matches for international tax accounting firms associated with Irvine, United States as of October 2026 and tracks 1,080 professional contacts across them, including 473 with verified work emails. Across the United States, New York is the largest hub for this category (323 companies); Irvine has 55.

This list covers company matches for international tax accounting firms associated with Irvine, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 1, 2026 How this list was built

55Companies

1,080Contacts tracked

473Verified emails

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The 25 largest international tax accounting firms based in Irvine, United States

Ranked by team size

Top 25 of 55 company matches for international tax accounting firms based in Irvine, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Lsl, LLP	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	51-200	178 contacts →
	Exact match “LSL provides solid guidance, support & solutions to businesses, governments and non-profits.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	Haskell & White LLP	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	51-200	133 contacts →
	Exact match “Haskell & White LLP is one of the largest independently owned accounting, auditing and tax consulting firms in Southern California, specializing in servicing public and private…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	Squar Milner	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	501-1,000	84 contacts →
	Exact match “Squar Milner is one of the nation’s 40 largest accounting firms as well as one of the largest independent accounting and advisory firms in California.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	Greengrowth Cpas	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	51-200	71 contacts →
	Exact match “Welcome to GreenGrowth CPAs, your strategic partner dedicated to empowering businesses to achieve their full potential.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	RJI Cpas	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	51-200	59 contacts →
	Exact match “RJI CPAs is a full-service accounting and consulting firm based in Irvine, California.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Wertz & Company, LLP	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	11-50	57 contacts →
	Exact match “Wertz & Company is recognized in the business community for its unique and innovative method of delivering professional services to its clientele.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	KBF Cpas	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	51-200	56 contacts →
	Exact match “KBF is a fast-growing CPA firm that offers a comprehensive range of tax, assurance and advisory services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	Taxquotes	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	11-50	41 contacts →
	Exact match “Tax Quotes is a tax and accounting firm specializing in tax remediation work.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	Bharmal & Associates, INC	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	1-10	23 contacts →
	Exact match “We are no ordinary accounting firm.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	White Nelson Diehl Evans LLP	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	51-200	21 contacts →
	Exact match “White Nelson Diehl Evans LLP is a full-service accounting firm that prides itself on delivering personal service while supporting your most demanding global needs.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	KMJ Corbin & Company	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	11-50	20 contacts →
	Exact match “KMJ provides accounting, auditing, tax and consulting services to public and private companies in the small to middle markets.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	TAX Resolution Plus	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	11-50	15 contacts →
	Exact match “Tax Resolution Plus has been providing clients with Tax Settlement, Audit representation, and accounting services throughout the nation.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Afps LLP	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	11-50	14 contacts →
	Exact match “AFPS LLP is an independently owned tax, accounting, and auditing consulting firm located in Irvine, California and is recognized throughout Orange County as a leading authority in…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Maxwell & Company Cpa's, INC	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	51-200	11 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	Reiwa Accounting LLP れいわ米国公認会計士事務所	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	11-50	11 contacts →
	Exact match “Reiwa Accounting LLP is a company based out of 18200 Von Karman Ave #790, Irvine, California, United States.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Abregov Parrino, LLP	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	1-10	10 contacts →
	Exact match “Abregov Parrino, LLP is a full-service Certified Public Accounting and Business Advisory firm that specializes in helping individuals and privately held businesses by providing…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	Gonzalez CPA	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	11-50	9 contacts →
	Exact match “Founded in 2001 Gonzalez CPA is a fully certified public accounting firm which has been practicing accounting, tax strategies, and management consulting for 15 years.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	Areté Advisors	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	11-50	9 contacts →
	Exact match “At Areté Advisors, we believe every client deserves expert financial guidance, not just at tax time, but throughout every stage of their business and personal financial journey.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	SRH Financial Consultants	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	1-10	8 contacts →
	Exact match “SRH Financial Consultants provides tax and accounting services in Orange County, CA.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	NI TAX & Accounting	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	11-50	7 contacts →
	Exact match “NI TAX & ACCOUNTING is a full service accounting firm serving the Orange County at Southern California.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Honest TAX Solutions	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	1-10	7 contacts →
	Exact match “Honest Tax Solutions is a reputable Tax and Accounting Firm located in Southern California.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	KDM Business Consulting	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	1-10	6 contacts →
	Exact match “KDM is a certified public accounting firm based in Orange County, CA.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	O'connor & YU LLP	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	11-50	3 contacts →
	Exact match “At O'Connor & Yu LLP, we pride ourselves on our dedication to the success and long term growth of our individual and business clients.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24	Bourque & Mclucas Cpas, INC	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	11-50	3 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	Rickmeyer & Associates, INC	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	11-50	3 contacts →
	Exact match “Rickmeyer & Associates has over 50 years of combined experience at the "Big 4" accounting firms.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “international tax accounting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 55 international tax accounting firms based in Irvine, United States

See the full list, filter by size, metro and specialty, and access 473 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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International tax accounting firms based in Irvine, United States at a glance

As of Oct 1, 2026

43.8%Verified-email coverage

19.6Average contacts per company

11-50Median size (employees)

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for Irvine, so it is reported there. Company counts and contact totals on this page are exact for Irvine, over 55 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Irvine, United States whose business descriptions match “international tax accounting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 473 professional contacts with verified work emails across the full matched dataset. 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 October 1, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

International tax accounting firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “international tax accounting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many international tax accounting firms are there based in Irvine, United States?

RevenueBase identified 55 company matches for international tax accounting firms associated with Irvine, United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Lsl, LLP tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most international tax accounting firms?

New York leads the United States with 323 company records, followed by Houston (170) and Miami (154). Irvine has 55.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 473 professional contacts with verified work emails tracked across these 55 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 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 SmartSearch, 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.