Top 100 Business Consulting Companies in California
The Best of October 2026Looking for a top consulting firm in California?
Consulting firms provide in-depth knowledge and understanding in relation to the client’s industry, technology, and processes. Having this kind of business partner empowers companies to make the best decisions for the business. They provide technical and corporate assistance, helping you resolve your challenges regardless of the industry you’re in.
Consulting firms provide a wide range of services, from creating business strategies to solidifying operational processes. Take your company to the next level by partnering with a firm today. Their knowledge and expertise are valuable assets for every business.
To assist you in your search for a partner, we’ve compiled this list of the top consulting companies in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best California Business Consulting Firms
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1$5,000+10 - 49 employeesFremont, CARead More
Argona Partners is a collective of hands-on startup experts helping founders and entrepreneurs scale and accelerate their business by providing collaborative, science-based Capital Campaign support.
Clients
SoundSpaceIndustries
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2$100,000+250 - 999 employeesLos Angeles, CAIn Los Angeles, California; Santa Monica, California; New York, New York and San Francisco, California, TheoremOne is a midsize software development company. They focus on Custom Software Development, IT strategy consulting, Business Consulting, IoT development, and more and were founded in 2007.Read More
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AT&TIndustries
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3$1,000+2 - 9 employeesSanta Monica, CAPublic relations agency Red Cup Agency was established in 2010. The small team specializes in Public Relations, Business Consulting, Corporate Training & Coaching, Audio Production, and more. The company is headquartered in Santa Monica, California.Read More
Clients
Boston Consulting Group Digital VenturesIndustries
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4$5,000+2 - 9 employeesLos Angeles, CARead More
Launched in 2013, Clarke Executive Services Group LLC is a business consulting and HR firm. The small Los Angeles, California-based team specializes in business consulting and HR services.
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5Undisclosed10 - 49 employeesAlameda, CARead More
Emerson Human Capital Consulting, Inc. (Emerson) is a woman-owned small business that delivers outcomes and sustainable success through organizational change. Emerson now has more than 20 years of experience designing, developing, and delivering Transformation, Change Management, Learning & Development, and Technology Change solutions to government and industry. We specialize in change projects that require momentum within 90 days and will deliver at least $1M in benefits.
Clients
NikeIndustries
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6$10,000+2 - 9 employeesLaguna Beach, CARobyn & Robyn is a small branding agency launched in 2015. Their team offers Branding, Business Consulting, and Graphic Design. The company is based in Laguna Beach, California.Read More
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7$10,000+10 - 49 employeesLos Angeles, CARead More
Wemersive is an advertising company founded in 2012. Their small team is based in Los Angeles, California; Amsterdam, Netherlands and Toronto, Canada. The firm specializes in advertising, AR/VR development, branding, digital strategy, and more.
Clients
Coca ColaIndustries
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8$1,000+2 - 9 employeesLos Alamitos, CARead More
MPWR Coaching is a business firm based in Los Alamitos, Calif. with fewer than 10 members. Founded in 2018, they specialize in business consulting and HR services for small and medium-sized businesses alike.
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PfizerIndustries
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9$10,000+10 - 49 employeesSan Luis Obispo, CARead More
Tronvig Group is a strategic agency headquartered in Brooklyn, N.Y. with an office in Germany. Since 1998, the agency and its team of over 10 have been specializing in advertising, branding, and print design. The agency focuses on clients in various industries including arts/entertainment, non-profits, and financial services.
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National Gallery of ArtIndustries
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10$10,000+10 - 49 employeesSan Francisco, CARead More
Iron Creative is a midsized digital agency based in San Francisco. Founded in 2003, their team specializes in content marketing, digital strategy, and web design.
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2K GamesIndustries
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11$1,000+10 - 49 employeesMoorpark, CAKahn Media is a small public relations company founded in 2008. Their team provides Public Relations, Graphic Design, Digital Strategy, Video Production, and more. The agency is located in Moorpark, California.Read More
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12$5,000+2 - 9 employeesVacaville, CAMinor Change is a small branding company. The Vacaville, California-based agency was established in 2023. Their services include branding.Read More
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13$25,000+10 - 49 employeesPasadena, CARead More
Echo Factory is a Pasadena, California-based advertising company. The small firm was launched in 2007. Their services include advertising, branding, marketing strategy, public relations, and more.
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14$1,000+10 - 49 employeesSan Diego, CAFormula Marketing is a small social media marketing agency in San Diego, California. Founded in 2008, the team provides Social Media Marketing, Content Marketing, Digital Strategy, Graphic Design, and more.Read More
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15$10,000+10 - 49 employeesLafayette, CARead More
Forshay is an HR agency based in Lafayette, Calif., and founded in 2011. With more than 10 members, they specialize in HR services for mid-market and enterprise-level clients that work in the fields of health care, advertising, and gaming.
Clients
AirbnbIndustries
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16$50,000+2 - 9 employeesLos Angeles, CARead More
Avaans PR is a PR firm. They are based in Los Angeles, California and have a small team. Their services include public relations, advertising, and social media marketing. The company was established in 2008.
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17Undisclosed10 - 49 employeesEncinitas, CARead More
Movetic is a digital agency that is based in Encinitas, Calif. Founded in 2014, Movetic's team of 10 specializes in branding and UX/UI design. Movetic also offers digital strategy and advertising services to its clients.
Clients
The Hettema Group -
18$50,000+10 - 49 employeesLos Angeles, CAMetacto is a small mobile application development company. Founded in 2022, the agency is in Los Angeles, California. Their services include Mobile App Development, UX/UI Design, Web Development, Business Consulting, and more.Read More
Industries
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19$5,000+2 - 9 employeesIrvine, CARead More
A Bigger Bottom Line LLC is a business consulting and bookkeeping firm based in Los Angeles. The firm, founded in 2016, is the business of Andria Radmacher who provides accounting and business consulting services to various clients and companies.
Clients
RM ConstructionIndustries
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20$25,000+2 - 9 employeesLos Angeles, CARead More
IN GOOD CO is a brand consultancy based in Venice, Calif. The consultancy, founded in 2015, has a team of less than ten that provides branding, event marketing & planning, marketing strategy, packaging design, business consulting, and corporate training services to enterprise and smaller-sized companies in the consumer products & services, retail, legal cannabis, hospitality & leisure, e-commerce, and other industries.
Clients
BelcampoIndustries
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21$10,000+2 - 9 employeesNewport Beach, CARead More
Life Elixir is a consultancy based in Newport Beach, Calif. with over two employees. Founded in 2015, they offer business consulting, big data consulting, and other design solutions for clients that work in the industries of health care, government, and IT services.
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Clinitraq IncIndustries
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22$75,000+2 - 9 employeesIrvine, CARead More
Franchise Beacon is a sales, development, and management company in Irvine, Calif. Founded in 2008, they have about 5 employees that do business consulting, email marketing, and HR consulting and outsourcing. Clients are in the HR sector exclusively.
Clients
Liquid Capital of America -
23$1,000+2 - 9 employeesLa Verne, CARead More
Idea House & Co. Is a small product design company. Founded in 1996, the agency is in La Verne, California. Their team focuses on product design.
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24Undisclosed2 - 9 employeesSan Diego, CARead More
Trident Proposal Management is a business consulting firm based in San Diego. Founded in 2009, their team of around 19 employees focuses on helping clients expand into government contracting markets.
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25Undisclosed2 - 9 employeesLos Angeles, CAThe Reputation MD is a small business consulting company. Founded in 2021, the team focuses on business consulting, public relations, branding, digital strategy, and more. The agency is headquartered in Los Angeles, California.Read More
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26$1,000+2 - 9 employeesHuntington Beach, CARead More
Sunday Brunch Agency is a small advertising company founded in 2016. Their services include advertising, branding, social media marketing, email marketing, and more. The firm is based in Huntington Beach, California.
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27$5,000+2 - 9 employeesSan Francisco, CAMATAX is a small Accounting company. They provide Accounting, AI Agents, Business Consulting, and cloud consulting & SI and were established in 2006. The agency is in San Francisco, California.Read More
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28Undisclosed250 - 999 employeesSan Ramon, CASensiba LLP is a midsize Accounting company. Headquartered in San Ramon, California; Bend, Oregon; Fresno, California and San Jose, California, the firm was launched in 1977. Their team specializes in Accounting, Cybersecurity, Finance & Accounting Outsourcing (FAO), Business Consulting, and more.Read More
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29$1,000+50 - 249 employeesSan Diego, CACFO Hub is a Fractional CFO Services company established in 2018. Their midsize team is located in San Diego, California; Irvine, California; Los Angeles, California and San Francisco, California. The company provides Fractional CFO Services, Business Consulting, Accounting, Finance & Accounting Outsourcing (FAO), and more.Read More
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30Undisclosed2 - 9 employeesFairfield, CARead More
Amazing Solutions, Inc. is an accounting software reseller based in Fairfield, Calif. Their team of no more than 10 has offered application management and support, business consulting, and custom software development solutions since their founding in 1981.
Clients
Athens Baking CompanyIndustries
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Schedule ConsultationMost Reviewed Consulting Company in California
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