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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31Undisclosed250 - 999 employeesSan Ramon, CAFounded in 1977, Sensiba LLP is a midsize Accounting company. Their services include Accounting, Finance & Accounting Outsourcing (FAO), Business Consulting, Financial Advising & Planning, and more. The agency is based in San Ramon, California; Bend, Oregon; Fresno, California and San Jose, California.Read More
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32Undisclosed2 - 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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33$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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34$5,000+2 - 9 employeesInglewood, CACX Collective is a small CRM consulting and SI company. They offer CRM consulting and SI, Business Consulting, Call Center Services, Customer Service Outsourcing, and more and were founded in 2016.Read More
Clients
Thrive CausemeticsIndustries
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35$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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36Undisclosed2 - 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.
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Athens Baking CompanyIndustries
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37Undisclosed1,000 - 9,999 employeesSan Diego, CARead More
Established in 2012, fusepoint is a Marketing Strategy company. They are in San Diego, California and have a large team. Their services include Marketing Strategy, Media Planning & Buying, Digital Strategy, BI & big data consulting & SI, and more.
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38$10,000+10 - 49 employeesLos Angeles, CARead More
Launched in 2007, Formula is a IT strategy consulting company. The large team provides IT strategy consulting, BI & big data consulting & SI, cloud consulting & SI, IT staff augmentation, and more. The agency is headquartered in Los Angeles, California.
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39$1,000+2 - 9 employeesSan Francisco, CARead More
Passionfruit Creative is a digital marketing agency based in Atherton, Calif.. The agency, founded in 2020, has a team of less than ten that provides marketing strategy, digital strategy, social media marketing, content marketing, and corporate photography services. Passionfruit Creative serves small companies and organizations in the consumer products & services, retail, hospitality & leisure, and nonprofit industries.
Clients
Delilah HomeIndustries
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40$1,000+10 - 49 employeesSan Francisco, CARead More
Established in 2020, DemandLever is a business consulting company. The agency specializes in business consulting, digital strategy, and direct marketing and has a small team. The agency is located in San Francisco, California.
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41$5,000+2 - 9 employeesEscondido, CARead More
Aric N. Williams, PA is a corporate law company. The Escondido, California-based agency was established in 2015. The small team offers corporate law, business consulting, and media & entertainment law.
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42$5,000+10 - 49 employeesLos Angeles, CADitans group is a Los Angeles, California-based business consulting company. The small team offers business consulting, digital strategy, search engine optimization, pay per click, and more and was founded in 2020.Read More
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43$25,000+2 - 9 employeesSan Francisco, CARead More
ADG is a design firm founded in San Francisco in 2017 with fewer than 10 professionals. They provide UX/UI design, business consulting, and web design solutions for clients ranging from small firms to large companies.
Clients
BayerIndustries
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44$5,000+2 - 9 employeesSan Jose, CARead More
Innerplum Consulting is a market research firm based in San Jose, Calif. with more than two employees. Founded in 2019, they offer market research, business consulting, and marketing strategy for small and medium-sized businesses alike.
Clients
Oteri Consulting GroupIndustries
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45$10,000+10 - 49 employeesOakland, CAMarketing Strategy company Reverence Global was established in 2020. The firm focuses on Marketing Strategy, Branding, Search Engine Optimization, Web Design, and more and has a small team.Read More
Clients
Good Radiance Inc.Industries
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46$1,000+2 - 9 employeesBeverly Hills, CARead More
IT strategy consulting company We Solve Problems was launched in 2010. They are located in Beverly Hills, California and have a small team. Their services include IT strategy consulting, IT managed services, cybersecurity, cloud consulting & SI, and more.
Industries
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47Undisclosed10 - 49 employeesFremont, CARead More
Singh Law Firm is a small. The Fremont, California-based agency was established in 2010. Their team offers.
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48$5,000+2 - 9 employeesCupertino, CAHR Consulting company Key People was launched in 2018. Their small team is located in Cupertino, California and specializes in HR Consulting, Business Consulting, and Financial Consulting.Read More
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49$1,000+2 - 9 employeesIrvine, CARead More
Bharmal & Associates, Inc. is an accounting firm that's based in Irvine, Calif. Since 1993, their team of 10+ specializes in tax preparation, financial accounting, and business consulting for clients in the construction, retail, financial services industries, and more.
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50Undisclosed2 - 9 employeesBeverly Hills, CARead More
Lalea & Black is a business consulting agency in Los Angeles. Founded in 2013, they have 2 employees. Their services include business consulting, tax preparation, bookkeeping, and financial accounting.
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51$5,000+2 - 9 employeesIrvine, CARead More
Formulytic is a demand generation and marketing operations consulting company based in Irvine, Calif. Founded in 2015, the team of 2 specializes in conversion optimization, CRM consulting and SI, and digital strategy.
Clients
VidyardIndustries
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52$10,000+2 - 9 employeesLos Angeles, CARead More
VargasAndrews is a professional services company in Los Angeles and Brisbane, Australia. Founded in 2016, they have about 8 employees that serve clients in a variety of industries. Services include commercial financing, ERP consulting, and accounting.
Clients
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53$5,000+2 - 9 employeesSan Francisco, CARead More
Cassa Grant Communications is a small branding firm. The San Francisco, California-based company was launched in 2016. Their services include branding, business consulting, and corporate training.
Industries
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54Undisclosed10 - 49 employeesSan Marcos, CARead More
ChicExecs is a SEO services firm. Established in 2006, the team focuses on search engine optimization, social media marketing, pay per click, other digital marketing, and more. Their small firm is headquartered in San Marcos, California.
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55Undisclosed50 - 249 employeesWalnut, CALaunched in 2002, OWOX BI is a midsize Walnut, California-based Business Consulting company. Their team offers Business Consulting.Read More
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56$5,000+2 - 9 employeesNewport Beach, CABranding agency Branding Concier LLC was founded in 2019. Their small team is based in Newport Beach, California. Their services include Branding, Web Design, Marketing Strategy, Digital Strategy, and more.Read More
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57$1,000+50 - 249 employeesLos Angeles, CABusiness consulting company Elite Wiki Writers is located in Los Angeles, California. The midsize team specializes in business consulting. The company was established in 2022.Read More
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58Undisclosed250 - 999 employeesCarlsbad, CAFounded in 1973, Aldrich is an Accounting company. The team provides Accounting and Business Consulting.Read More
Industries
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59$10,000+10 - 49 employeesIrvine, CARead More
Custom Software Solutions, Inc is a software house based in Irvine, Calif., and founded in 2005. With no more than 50 experts, they provide SEO, PPC, and custom software development solutions to clients ranging from startups to large businesses.
Clients
HID GlobalIndustries
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60$5,000+250 - 999 employeesSanta Rosa, CARead More
Blitz Mobile Apps is a midsize app development company headquartered in Santa Rosa, California. Launched in 2018, the team offers mobile app development, blockchain, video production, and AR/VR development.
Industries
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