Top 100 Business Consulting Companies in California
The Best of December 2025Looking 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.
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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$5,000+10 - 49 employeesEl Segundo, CARead More
Facet Interactive is a small Digital Strategy company launched in 2014. Their services include Digital Strategy, BI & big data consulting & SI, cloud consulting & SI, CRM consulting and SI, and more. The agency is based in El Segundo, California.
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Element Solutions IncIndustries
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4Undisclosed250 - 999 employeesWest Hollywood, CAVirtual Coworker, a Business Consulting and Back Office Outsourcing company, was established in 2011. Their midsize team is headquartered in West Hollywood, California and Sydney, Australia. Their services include Business Consulting and Back Office Outsourcing.Read More
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5$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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6$5,000+10 - 49 employeesSanta Monica, CARead More
Red Cup Agency is a digital publishing agency with headquarters in Santa Monica, Calif. They were founded in 2010 and has a team of 5 employees. They provide content marketing, marketing strategy, and web design services for clients in the entertainment, consumer products, education, and healthcare industries.
Clients
Boston Consulting Group Digital VenturesIndustries
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7Undisclosed10 - 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.
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NikeIndustries
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8$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.
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Coca ColaIndustries
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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$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.
Clients
PfizerIndustries
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11$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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12$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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13Undisclosed10 - 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 -
14$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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15$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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16$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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17$10,000+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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18$1,000+2 - 9 employeesSan Diego, CASocial media marketing agency Formula Marketing was launched in 2008. The small team provides social media marketing, content marketing, digital strategy, graphic design, and more. The firm is based in San Diego, California.Read More
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19$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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20$10,000+2 - 9 employeesLaguna Beach, CARobyn & Robyn is a branding agency. Their small team is located in Laguna Beach, California. The company specializes in Branding, Graphic Design, Business Consulting, Marketing Strategy, and more. The company was established in 2015.Read More
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21$25,000+10 - 49 employeesLos Angeles, CAMobile app development company MetaCTO was founded in 2022. The company provides Mobile App Development, UX/UI Design, Web Development, Business Consulting, and more and has a small team. The company is based in Los Angeles, California.Read More
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22$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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23Undisclosed2 - 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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24$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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25$1,000+2 - 9 employeesLos Angeles, CARead More
Westside Tax is an accounting services company located in Los Angeles that was founded in 2016. The company employs a team of fewer than 10 and offers services like financial accounting, tax & payroll preparation, and bookkeeping to small and mid-size businesses.
Industries
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26$50,000+1,000 - 9,999 employeesSanta Clara, CARead More
Founded in 2001, Trianz is a strategic agency headquartered in Santa Clara, Calif. with offices all over the United States, including Boston, Chicago, and Seattle.Their team has over 1,000 employees that specialize in big data consulting, cloud consulting, and IT strategy consulting.
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High TechIndustries
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27$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.
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Liquid Capital of America -
28$1,000+2 - 9 employeesSan Francisco, CARead More
Launched in 2006, matax is an accounting company. They are in San Francisco, California and have a small team. Their services include accounting and business consulting.
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29$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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30$10,000+2 - 9 employeesLos Angeles, CARead More
Furtive Collective is a branding and marketing agency based in Los Angeles. Furtive Collective was founded in 2016, and has just 3 employees. Its services include digital strategy, UI/UX design, market research and business intelligence.
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AutoIndustries
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Schedule ConsultationMost Reviewed Consulting Company in California
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