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Top Accounting Firms in California

200 of 600 accounting firms ranked on evidence in the Q4 2026 edition.

TrustList ranking

Q4 2026 edition

200 of 600 accounting firms ranked on evidence held on 9 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.

Positions are fixed for the quarter; the next edition is due in January 2027.

How this is ranked About this edition

Flagship ranking · Q4 2026 edition

This page ranks accounting firms in California, from long-established CPA partnerships to small bookkeeping and tax practices. TrustList lists 608 of them, and 111 earned a rank number in the Q4 2026 edition. Of the ranked firms, four hold a professional accreditation and 104 state a founding date, with the 1990s (29) and 1980s (26) the most common decades. San Diego has seven, Los Angeles five, and Fresno and San Francisco three each.

The order reflects evidence TrustList held on 5 October 2026: client reviews, vetting, awards and facts each firm states on its own website, which we read and dated. Nobody pays to be placed. A listing with nothing checkable is shown but not ranked, and positions are fixed until the January 2027 edition. A firm can move up by adding client reviews or verified facts to its free profile.

By TrustList Editorial

All accounting firms 200 ranked SMEs 198 ranked

The SME ranking on this page lists 604 small and medium-sized firms, and 109 of them earned a rank number. Four businesses known to be large are left out. The SME order does not reward age, so newer firms compete on evidence alone. See the SME ranking

Filter by fitbudget, engagement, size and more

The top three

1
DeMera DeMera Cameron, LLP
- Fresno, California
- Founded 1944
- professional accreditation
View profile
2
Ruben D. Rosas, Inc.
Best for: San Gabriel Valley small businesses
QuickBooks ProAdvisor helping small businesses in Covina and the surrounding area get their books working.
- Covina, California
- In business 30+ years
- professional accreditation
View profile
2
Daniels & Company, Inc.
Best for: Small and mid-sized companies
Prepares tax returns and handles accounting and tax planning for small and mid-sized companies and private individuals, with all work done in-house.
- Folsom, California, USA
- Founded 1996
- professional accreditation
View profile

DeMera DeMera Cameron, LLP
Tax · Accounting · Budgeting · Also in Nice
DeMera DeMera Cameron, LLP is a certified public accounting firm in Fresno, California, working with both individuals and businesses.
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Why #1: Based in Fresno, California · Founded 1944 · professional accreditation, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Ruben D. Rosas, Inc.
Best for: San Gabriel Valley small businesses
Tax · Accounting · Reporting
Accounting & Tax Solutions Ruben D. Rosas, Inc. is a local accounting and tax firm in Covina, California with more than 30 years of accounting and tax knowledge.
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Why #2 (shared): Based in Covina, California · In business 30+ years · professional accreditation, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Daniels & Company, Inc.
Best for: Small and mid-sized companies
Folsom, California accounting practice handling tax returns, tax planning and QuickBooks support for businesses and individuals
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Why #2 (shared): Based in Folsom, California, USA · Founded 1996 · professional accreditation, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
ABCompany LLC
Best for: Bilingual English and French clients
Tax · Accounting · Books
ABCompany LLC provides accounting and bookkeeping in both English and French from Fullerton, California.
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Why #2 (shared): Based in Fullerton, California · In business 30+ years · professional accreditation, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Jerry Sung CPA & Associates
Best for: Bay Area small businesses
Non Profit · Tax Planning · Tax
Jerry Sung CPA & Associates is an accounting and tax practice in California that has worked in the Bay Area since 1989.
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Why #5: Based in Emeryville, California · Founded 1989 · Team of 12+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Harvey & Parmelee LLP
Non Profit · Tax · Accounting · Also in Southern California
Certified public accountants in Whittier and Brea offering tax, accounting and business consulting across Southern California
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Why #6: Based in Whittier and Brea, California, United States · Founded 1922, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Linger, Peterson, Shrum & Co.
Linger, Peterson, Shrum & Co. is an accounting and consulting practice in Fresno, California, known as LPS. It has served clients for more than a century.
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Why #7 (shared): Based in Fresno, California · In business 100+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Frazer, LLP
Consumer Products & Services · Non Profit · Financial Services
Frazer, LLP is an accounting and consulting firm that organises its work around industry specialisms.
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Why #7 (shared): Based in Anaheim, California, USA · In business 100+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
C.G. Uhlenberg, LLP
Best for: Individuals, estates and trusts
Tax · Accounting · Goals
San Mateo CPA partnership providing tax, accounting and advisory services to individuals, businesses, estates and trusts
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Why #9: Based in San Mateo, California, United States · Founded 1927, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
KROST Certified Public Accountants & Consultants
KROST Certified Public Accountants & Consultants was a Los Angeles-based accounting practice. Its history reaches back to 1939.
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Why #10: Based in Los Angeles, California, USA · Founded 1939, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Hillberg & Co. CPA's
Best for: Entrepreneurs and closely held businesses
Tax · Goals
Hillberg & Co. CPA's, also called Hillberg & Company, is a California accounting firm founded in 1947 by Carl Hillberg in Turlock.
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Why #11: Based in Turlock, California · Founded 1947, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Harrison Accounting Group, Inc.
Tax · Accounting · Corporation
Harrison Accounting Group, Inc. is an accounting practice based in Fremont, California, formerly named Harrison, Luce & Company.
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Why #12: Based in Fremont, California · Founded 1948, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
gish SEIDEN LLP
Tax · Accounting · Reporting
gish SEIDEN LLP is a tax, accounting and business consulting firm in Los Angeles, California, with a history of some 75 years.
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Why #13: Based in Los Angeles, California · In business 75+ years · Family-owned, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Fullerton Business Service
Best for: Orange County families
Family-run Fullerton, California practice offering tax preparation, bookkeeping and accounting for families and small firms
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Why #14: Based in Fullerton, California, United States · Founded 1952 · Family-run, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
FHWV Partners, LLP
FHWV Partners, LLP is a certified public accountancy firm based in Los Alamitos, California.
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Why #15: Based in Los Alamitos, California, USA · In business 70+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Fink & Company, LLP
Best for: Closely held businesses and owners
Fink & Company, LLP is a certified public accounting firm in Woodland Hills, California.
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Why #16: Based in Woodland Hills, California · Founded 1957, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Fenster and Fenster CPA’s
Tax · Accounting
Fenster and Fenster CPA's is a certified public accounting practice serving the Inland Empire and Orange County.
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Why #17: Based in Inland Empire and Orange County, California · Founded 1958, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Hess Income Tax
Tax · Also in Westminster and Nice
Hess Income Tax is a family-owned tax practice in Westminster, California. Its office is made up of Enrolled Agents and CTEC Registered Tax Preparers.
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Why #18 (shared): Based in Westminster, California · Founded 1960 · Family-owned, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
JF
JM Financial Strategies
Goals · Insurance · Also in San Diego
JM Financial Strategies is an independent financial firm in the San Diego area, working with local people since 1960.
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Why #18 (shared): Based in San Diego area, California · Founded 1960, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Johnston, Martin & Montgomery LLP
Accounting
Johnston, Martin & Montgomery LLP is a certified public accounting firm in Woodland, California, founded in 1962.
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Why #20: Based in Woodland, California · Founded 1962 · Small firm, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Hills Renaut Homen & Hughes
Non Profit · Tax · Accounting
Hills Renaut Homen & Hughes is a group of certified public accountants based in Fresno, California.
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Why #21: Based in Fresno, California · Founded 1963, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Brandon & Tibbs Accountants
Tax · Calculators · Responsive
Brandon & Tibbs Accountants provides accounting, tax and management advisory work in the Salinas Valley of California.
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Why #22: Based in Salinas, California, United States · Founded 1964, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Gould Tax & Business Services, Inc.
Gould Tax & Business Services, Inc. is a family-run tax and bookkeeping practice in Manteca, California.
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Why #23 (shared): Based in Manteca, California · In business 60+ years · Family-run, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Daniells Phillips Vaughan & Bock
Daniells Phillips Vaughan & Bock, known as DPVB, is a firm of CPAs and advisers serving Bakersfield and the wider Kern County area for more than 60 years.
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Why #23 (shared): Based in Bakersfield, California · In business 60+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.

The top ten at a glance

As each business states it on its own website, read by TrustList for this edition.

#	Business	Based in	Since	Accreditations	Best for
1	DeMera DeMera Cameron, LLP	Fresno, California	1944	professional accreditation
=2	Ruben D. Rosas, Inc.	Covina, California	30+ yrs	professional accreditation	San Gabriel Valley small businesses
=2	Daniels & Company, Inc.	Folsom, California, USA	1996	professional accreditation	Small and mid-sized companies
=2	ABCompany LLC	Fullerton, California	30+ yrs	professional accreditation	Bilingual English and French clients
5	Jerry Sung CPA & Associates	Emeryville, California	1989	None stated	Bay Area small businesses
6	Harvey & Parmelee LLP	Whittier and Brea, California, United States	1922	None stated
=7	Linger, Peterson, Shrum & Co.	Fresno, California	100+ yrs	None stated
=7	Frazer, LLP	Anaheim, California, USA	100+ yrs	None stated
9	C.G. Uhlenberg, LLP	San Mateo, California, United States	1927	None stated	Individuals, estates and trusts
10	KROST Certified Public Accountants & Consultants	Los Angeles, California, USA	1939	None stated

How to choose accounting firms

1. Check the CPA licence
Public accounting in California is licensed through the state board of accountancy. Ask for the licence number of the person signing your work and look it up yourself before you engage the firm.
2. Match the firm to your work
Personal returns, small-business books, payroll, audit and estate work call for different skills. Ask who will do your type of job and whether the firm handles clients like you.
3. Ask about IRS and state notices
If you may face a notice or audit, ask whether the firm represents clients before the IRS and the Franchise Tax Board, and whether that is billed separately from preparing the return.
4. Confirm software and file sharing
Many firms support QuickBooks. Ask which versions they use, how documents are exchanged securely, and how you get your records back if you change accountant.
5. Get fees and scope in writing
Ask for an engagement letter stating what is included, whether fees are fixed or hourly, and what extra work such as catch-up filings or amended returns would cost.
6. Think about size and access
A small practice may give direct access to the owner; a larger one may offer more specialisms. Ask who your day-to-day contact is and who covers when they are away.

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