# Top 50 Accounting companies in California

Tamtam tracks 62 Accounting companies headquartered in California. This list ranks the 50 largest by number of employees on LinkedIn, led by Armanino, GHJ and CCG. Their median headcount is 202. Half of them were founded in 1996 or later. The most common headquarters are Los Angeles (8), San Francisco (5) and Glendale (2).

This selection of accounting companies in California includes both large firms and specialized consultancies. Armanino, for instance, is a major CPA and consulting firm, while GHJ offers national advisory and accounting services. CCG specializes in maximizing tax credits, and Novogradac focuses on real estate and affordable housing. Frank, Rimerman + Co. LLP provides accounting and consulting with over 70 years of experience, and MGO offers a global team of financial service professionals.

A notable pattern among these companies is their geographical distribution, with a significant concentration of headquarters in Southern California, particularly in Los Angeles. Other key locations include San Ramon, Pasadena, San Francisco, and Palo Alto, demonstrating a broad presence across the state.

🇺🇸 California · 50 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Armanino](https://www.tamtam.ai/c/armanino) (armanino.com)<br>A leading CPA & consulting firm offering top-tier services with a strong community commitment, industry expertise, and personal client attention | Accounting | 🇺🇸 San Ramon | 3,297 | 1969 |
| 2 | [GHJ](https://www.tamtam.ai/c/ghj) (ghjadvisors.com)<br>National advisory and accounting firm serving clients globally in nonprofit, food and beverage, entertainment, and health industries, leveraging a global network for comprehensive services (Note: This summary is based on the provided content without mentioning the company name) | Accounting | 🇺🇸 Los Angeles | 1,768 | 1953 |
| 3 | [CCG](https://www.tamtam.ai/c/ccg-pasadena) (ccg.com)<br>A national tax credit consulting firm in Pasadena, CA, specializing in helping companies maximize hiring-based and location-based tax credits | Accounting | 🇺🇸 Pasadena | 1,417 | 2002 |
| 4 | [Not company](https://www.tamtam.ai/c/not-company) (none.com)<br>The company offers a wide range of services and products, but the description provides no specific details or information | Accounting | 🇺🇸 Rancho Cordova | 1,137 |  |
| 5 | [Novogradac](https://www.tamtam.ai/c/novogradac) (novoco.com)<br>Accounting and consulting services specializing in real estate, affordable housing, community development, renewable energy, and valuation for national clients. | Accounting | 🇺🇸 San Francisco | 829 | 1989 |
| 6 | [Frank, Rimerman + Co. LLP](https://www.tamtam.ai/c/frank-rimerman-co-llp) (frankrimerman.com)<br>A top accounting firm with over 70 years of experience, providing local and global accounting and consulting services to individuals and businesses | Accounting | 🇺🇸 Palo Alto | 805 | 1949 |
| 7 | [Child Care Careers](https://www.tamtam.ai/c/child-care-careers) (childcarecareers.com)<br>Comprehensive resource for child care careers, preschool teachers, and daycare staffing needs Providing all services in one convenient place | Accounting | 🇺🇸 Los Angeles | 617 |  |
| 8 | [MGO (Macias Gini & O'Connell LLP)](https://www.tamtam.ai/c/mgo-macias-gini-and-o-connell-llp) (mgocpa.com)<br>Global team of financial service professionals providing assurance, tax, advisory, outsourcing, and private client services with a focus on outstanding service experiences and sophisticated digital tools | Accounting | 🇺🇸 Los Angeles | 592 | 1987 |
| 9 | [Arco Ampm Gas Station](https://www.tamtam.ai/c/arco-ampm-gas-station)<br>An accounting company located in San Diego, California, specializing in gas station management and financial services | Accounting | 🇺🇸 San Diego | 592 |  |
| 10 | [FLORES](https://www.tamtam.ai/c/flores) (flores-financial.com)<br>A leading provider of financial services and HR solutions for hospitality, grocery, and retail industries, offering expertise, tools, and technology for business success and growth | Accounting | 🇺🇸 Santee | 587 | 1982 |
| 11 | [QuickBooks Online Professional](https://www.tamtam.ai/c/quickbooks-online-professional) (yourocbookkeeper.com)<br>Specializing in customized accounting services for business owners, we offer tailored solutions based on individual needs with 20 years of experience No one-size-fits-all approach here | Accounting | 🇺🇸 Laguna Hills | 583 | 1998 |
| 12 | [SingerLewak LLP](https://www.tamtam.ai/c/singerlewak-llp) (singerlewak.com)<br>A leading West Coast public accounting firm providing tailored accounting, advisory, and tax services with a focus on client relationships and industry leadership | Accounting | 🇺🇸 Los Angeles | 519 | 1959 |
| 13 | [NKSFB](https://www.tamtam.ai/c/nksfb) (nksfb.com)<br>This business management firm offers concierge-style services to top artists in music, film, and television, as well as athletes and high achievers | Accounting | 🇺🇸 Los Angeles | 508 | 1981 |
| 14 | [Sensiba LLP](https://www.tamtam.ai/c/sensiba-llp) (sensiba.com)<br>Providing accounting, tax, and consulting services to help businesses and individuals solve problems, navigate complexity, and achieve sustainable growth Passionate about collaboration and social impact | Accounting | 🇺🇸 San Jose | 479 | 1977 |
| 15 | [Liberty Tax Service](https://www.tamtam.ai/c/liberty-tax-service) (libertytax.com)<br>A leading retail tax preparation company with over 4,000 offices in the US and Canada, focused on exceptional customer service and community involvement | Accounting | 🇺🇸 Seaside | 447 | 2014 |
| 16 | [Pilot.com](https://www.tamtam.ai/c/pilot-com) (tinyurl.com)<br>A provider of accounting, CFO, and tax services for startups and small businesses, focusing on sustainable growth and operational efficiency | Accounting | 🇺🇸 San Francisco | 425 | 2016 |
| 17 | [SK Enterprises](https://www.tamtam.ai/c/sk-enterprises) (skeusa.com)<br>A full-service accounting firm offering affordable, experienced, and friendly services to business owners, executives, and independent professionals | Accounting | 🇺🇸 Artesia | 376 | 1985 |
| 18 | [Apercen Partners LLC](https://www.tamtam.ai/c/apercen-partners-llc) (apercen.com)<br>Apercen is a tax consulting firm specializing in high net-worth individuals, offering income and multi-generational tax planning services for venture, hedge, and private equity partners | Accounting | 🇺🇸 Palo Alto | 362 | 2008 |
| 19 | [EPS](https://www.tamtam.ai/c/eps-san-rafael)<br>This company offers a secure and cost-effective alternative to traditional payroll processing, using state-of-art technologies for quick and efficient service | Accounting | 🇺🇸 San Rafael | 339 | 2009 |
| 20 | [Transguard](https://www.tamtam.ai/c/transguard)<br>This company provides IT consulting services, analyzing requirements and implementing solutions, as well as designing and developing websites for clients | Accounting | 🇺🇸 Los Angeles | 323 | 2013 |
| 21 | [Tax Relief Advocates](https://www.tamtam.ai/c/tax-relief-advocates) (tra.com)<br>Specializing in tax debt relief services, we assist individuals facing wage garnishments, bank levies, audits, and other tax-related issues for financial relief | Accounting | 🇺🇸 Irvine | 321 | 2017 |
| 22 | [MontPac](https://www.tamtam.ai/c/montpac) (montpac.com)<br>Outsourced accounting and financial management firm serving SMEs and large companies, specializing in startups and property management accounting with 300+ employees globally | Accounting | 🇺🇸 Granite Bay | 314 | 2006 |
| 23 | [Bench Accounting by Mainstreet](https://www.tamtam.ai/c/bench-accounting-by-mainstreet) (bench.co)<br>Professional bookkeeping and tax filing services with a dedicated team offering unlimited advisory services, empowering small businesses to focus on their core activities | Accounting | 🇺🇸 San Francisco | 308 | 2012 |
| 24 | [Gursey \| Schneider LLP](https://www.tamtam.ai/c/gursey-schneider-llp) (gursey.com)<br>A premier Los Angeles accounting firm providing integrated services in accounting, business management, litigation support, and business valuation Multiple office locations available | Accounting | 🇺🇸 Los Angeles | 277 |  |
| 25 | [CHW, LLP](https://www.tamtam.ai/c/chw-llp) (chwllp.org)<br>This company provides audit and assurance services, with a focus on healthcare organizations and maximizing Medicare/Medicaid reimbursements while ensuring compliance | Accounting | 🇺🇸 Fresno | 202 | 2014 |
| 26 | [LSL, LLP](https://www.tamtam.ai/c/lsl-llp) (lslcpas.com)<br>LSL CPAs provides comprehensive accounting and financial services with specialized expertise in various industries, focusing on auditing, advisory, taxes, and financial services | Accounting | 🇺🇸 Irvine | 186 | 1929 |
| 27 | [CNM LLP](https://www.tamtam.ai/c/cnm-llp) (crosscountry-consulting.com)<br>A technical advisory firm providing high-value services in technical accounting, IT, Cyber, Privacy, and internal control solutions to various companies | Accounting | 🇺🇸 Los Angeles | 186 | 2003 |
| 28 | [myStartUpCFO](https://www.tamtam.ai/c/mystartupcfo) (mystartupcfo.com)<br>Provides comprehensive CFO services to startups, including financial management, business advice, fundraising support, and tax compliance at various levels | Accounting | 🇺🇸 Fremont | 183 | 2015 |
| 29 | [TAG](https://www.tamtam.ai/c/tag-san-diego) (teamtag.net)<br>An established firm offering outsourced accounting services, high-level financial management for affluent families, and expertise in Sage construction software | Accounting | 🇺🇸 La Jolla | 181 | 1996 |
| 30 | [Hutchinson and Bloodgood LLP](https://www.tamtam.ai/c/hutchinson-and-bloodgood-llp) (hb.cpa)<br>A leading CPA firm providing Tax Planning, Auditing, Technology Consulting, Human Resources, and Business Advisory Services since 1922 in California | Accounting | 🇺🇸 Glendale | 175 | 1922 |
| 31 | [KBKG - Tax Credits, Incentives & Cost Recovery](https://www.tamtam.ai/c/kbkg-tax-credits-incentives-and-cost-recovery) (kbkg.com)<br>A nationwide tax solutions firm specializing in tax programs, R&D tax credits, cost segregation, transfer pricing, and more Client-focused and value-driven | Accounting | 🇺🇸 Pasadena | 173 | 1999 |
| 32 | [E](https://www.tamtam.ai/c/e-chatsworth)<br>LinkedIn company page currently deactivated, no available information about business activities or services provided. | Accounting | 🇺🇸 Chatsworth | 170 |  |
| 33 | [Countsy](https://www.tamtam.ai/c/countsy) (countsy.com)<br>Outsourced Accounting and HR/People Operations provider for startups and scaleups, offering dedicated fractional CFO and CPO services along with back office experts and technology platform | Accounting | 🇺🇸 Mountain View | 166 | 2017 |
| 34 | [Attivo Partners](https://www.tamtam.ai/c/attivo-partners) (attivopartners.com)<br>Attivo Partners offers fractional CFO and accounting services to support founders in building, growing, and exiting their companies at all stages | Accounting | 🇺🇸 San Francisco | 166 | 2017 |
| 35 | [Plumb Bill Pay](https://www.tamtam.ai/c/plumb-bill-pay) (plumbbillpay.com)<br>An outsourced accounting firm specializing in various industries, providing support with software applications to deliver innovative accounting products and services | Accounting | 🇺🇸 La Jolla | 159 | 1996 |
| 36 | [Engine Room](https://www.tamtam.ai/c/engine-room) (engine-room.com)<br>Engine Room offers finance and accounting support to venture-backed life science and tech start-ups, from execution to strategic guidance, ensuring financial organization success | Accounting | 🇺🇸 Pleasanton | 157 | 2012 |
| 37 | [van den Boom & Associates LLC](https://www.tamtam.ai/c/van-den-boom-and-associates-llc) (vandenboomassociates.com)<br>Specializing in accounting and finance services, we support life science companies with part-time support, SOX compliance, and extensive experience from start-up to post-transaction | Accounting | 🇺🇸 San Diego | 155 | 2014 |
| 38 | [CTW](https://www.tamtam.ai/c/ctw) (ctw-cpas.com)<br>Established in 1977, we provide assurance, tax, transaction, ESOP, and business advisory services to privately-held businesses, high wealth individuals, and selected non-profit organizations | Accounting | 🇺🇸 Roseville | 155 | 1977 |
| 39 | [Duffy Kruspodin, LLP](https://www.tamtam.ai/c/duffy-kruspodin-llp) (dk.cpa)<br>A full-service accounting firm offering personalized financial and business guidance, tax management, audits, financial planning, and excellence in professionalism for over 30 years | Accounting | 🇺🇸 Woodland Hills | 154 | 1990 |
| 40 | [KongBasileConsulting](https://www.tamtam.ai/c/kongbasileconsulting) (kongbasileconsulting.com)<br>San Francisco firm providing accounting and consulting services for start-ups, offering expertise in venture backed startups, interim resources, and international expansion support | Accounting | 🇺🇸 San Francisco | 149 |  |
| 41 | [Abbott, Stringham & Lynch](https://www.tamtam.ai/c/abbott-stringham-and-lynch) (aslcpa.com)<br>ASL helps privately held businesses thrive in their markets, and high net worth individuals protect and grow their wealth through strategic financial services | Accounting | 🇺🇸 Campbell | 149 | 1977 |
| 42 | [SOAProjects, Inc.](https://www.tamtam.ai/c/soaprojects-inc) (soaprojects.com)<br>Dynamic company offering comprehensive services in technical accounting, cybersecurity, data analytics, and more to help businesses optimize operations and stay ahead | Accounting | 🇺🇸 Mountain View | 116 | 2004 |
| 43 | [GALLINA LLP is now CLA (CliftonLarsonAllen)](https://www.tamtam.ai/c/gallina-llp-is-now-cla-cliftonlarsonallen) (claconnect.com)<br>A professional services provider that joined CLA in 2017, now offering comprehensive accounting, tax, and consulting services Visit claconnectcom for more information | Accounting | 🇺🇸 Roseville | 72 | 1972 |
| 44 | [Rose, Snyder & Jacobs LLP](https://www.tamtam.ai/c/rose-snyder-and-jacobs-llp) (rsjcpa.com)<br>A company focused on aligning clients' core values with financial strategies to provide customized accounting, tax, assurance, and advisory solutions | Accounting | 🇺🇸 Encino | 58 | 1976 |
| 45 | [Gumbiner Savett](https://www.tamtam.ai/c/gumbiner-savett) (bpmcpa.com)<br>A diverse accounting firm with deep expertise and a caring approach, offering services in accounting, compliance, and tax planning across multiple locations | Accounting | 🇺🇸 Santa Monica | 56 | 1950 |
| 46 | [Financial Accounting Services, Inc.](https://www.tamtam.ai/c/financial-accounting-services-inc) (taxmanfred.com)<br>A comprehensive company offering accounting, tax, and investment advisory services to individuals and businesses | Accounting | 🇺🇸 Temecula | 42 | 1995 |
| 47 | [El Triunfo Corporation](https://www.tamtam.ai/c/el-triunfo-corporation) (eltriunfo.com)<br>A leading financial firm offering personalized guidance including tax management, accounting, audits, financial statements, and planning to individuals and businesses | Accounting | 🇺🇸 Santa Ana | 35 | 2008 |
| 48 | [ASTUTE](https://www.tamtam.ai/c/astute) (thinkastute.com)<br>A value-add accounting and business advisory firm in Silicon Valley, helping companies with compliance, revenue recovery, profitability, and tax strategies | Accounting | 🇺🇸 Pleasanton | 34 |  |
| 49 | [CFOLogic](https://www.tamtam.ai/c/cfologic) (cfologic.com)<br>Global accounting firm helping small and medium businesses reduce finance costs, maximize peace of mind, and accelerate growth through outsourced accounting and CFO services | Accounting | 🇺🇸 Sacramento | 31 | 2010 |
| 50 | [The Accountancy, LLP](https://www.tamtam.ai/c/the-accountancy-llp) (theaccountancy.com)<br>The company provides tax, assurance, and advisory services, offering innovative solutions and unexpected insights to help clients achieve their goals | Accounting | 🇺🇸 Glendale | 31 | 1946 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.

## More company lists in California

- [The largest companies in California](https://www.tamtam.ai/l/largest-companies-california) (15,264)
- [Multinational companies in California](https://www.tamtam.ai/l/multinational-companies-california) (2,591)
- [SaaS companies in California](https://www.tamtam.ai/l/saas-companies-california) (1,854)
- [Software Development companies in California](https://www.tamtam.ai/l/software-development-companies-california) (1,649)
- [AI companies in California](https://www.tamtam.ai/l/ai-companies-california) (1,296)
- [Companies with in-house R&D in California](https://www.tamtam.ai/l/r-and-d-companies-california) (1,275)
- [Manufacturers in California](https://www.tamtam.ai/l/manufacturers-california) (1,066)
- [Hardware manufacturers in California](https://www.tamtam.ai/l/hardware-companies-california) (985)
- [IT Services and IT Consulting companies in California](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-california) (968)
- [Education providers in California](https://www.tamtam.ai/l/education-companies-california-united-states) (950)
- [Subscription businesses in California](https://www.tamtam.ai/l/subscription-businesses-california) (939)
- [Venture capital and private equity firms in California](https://www.tamtam.ai/l/vc-and-private-equity-firms-california) (917)
- [Professional services firms in California](https://www.tamtam.ai/l/professional-services-firms-california) (880)
- [Companies with a mobile app in California](https://www.tamtam.ai/l/companies-with-mobile-app-california) (827)
- [Retail chains in California](https://www.tamtam.ai/l/retail-chains-california) (803)
- [IT services companies in California](https://www.tamtam.ai/l/it-services-companies-california) (796)
- [Venture Capital and Private Equity Principals companies in California](https://www.tamtam.ai/l/venture-capital-and-private-equity-principals-companies-california) (731)
- [Financial services firms in California](https://www.tamtam.ai/l/financial-services-firms-california) (711)
- [Financial Services companies in California](https://www.tamtam.ai/l/financial-services-companies-california) (642)
- [Healthcare providers in California](https://www.tamtam.ai/l/healthcare-providers-california) (569)
- [AI-native companies in California](https://www.tamtam.ai/l/ai-native-companies-california) (561)
- [Hospitals and Health Care companies in California](https://www.tamtam.ai/l/hospitals-and-health-care-companies-california) (555)
- [Consulting firms in California](https://www.tamtam.ai/l/consulting-firms-california) (551)
- [Public sector organisations in California](https://www.tamtam.ai/l/public-sector-organisations-california) (535)

## The same list elsewhere in United States

- [Accounting companies in the United States](https://www.tamtam.ai/l/accounting-companies-united-states) (412)
- [Accounting companies in New York State](https://www.tamtam.ai/l/accounting-companies-new-york-state) (57)
- [Accounting companies in Texas](https://www.tamtam.ai/l/accounting-companies-texas) (29)
- [Accounting companies in New York](https://www.tamtam.ai/l/accounting-companies-new-york) (30)

## The same list elsewhere

- [Accounting companies in the world](https://www.tamtam.ai/l/accounting-companies-in-the-world) (3,442)
- [Accounting companies in North America](https://www.tamtam.ai/l/accounting-companies-in-north-america) (482)

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Source: https://www.tamtam.ai/l/accounting-companies-california