Top 100 SEO Companies in California
The Best of December 2025Looking for a top SEO firm in California?
Compare top-performing SEO agencies to see which may be the best fit for your business goals. Whether you're seeking to improve your ranking in search engine results pages, boost website traffic, or show up in local search results, investing in SEO is important for business growth.
To assist you in your search for a partner, we’ve compiled this list of the top SEO companies in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
Jump to Most Reviewed Companies
List of the Best California SEO Firms
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$1,000+50 - 249 employeesSan Antonio, TXFunnel Boost Media is a SEO company. They are located in San Antonio, Texas; Doral, Florida; Boston, Massachusetts and San Francisco, California and have a midsize team that focuses on Search Engine Optimization, Advertising, Pay Per Click, and Web Design. The agency was launched in 2012.Read More
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$1,000+10 - 49 employeesNew York, NYSEO company NuStream is in New York, New York; Philadelphia, Pennsylvania and Allentown, Pennsylvania. They provide Search Engine Optimization, Web Design, Digital Strategy, and Video Production and were established in 2010.Read More
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991Undisclosed2 - 9 employeesSunnyvale, CADonnan Creative Strategy, a small social media marketing agency, is based in Sunnyvale, California. The team focuses on Social Media Marketing and Content Marketing.Read More
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992$5,000+10 - 49 employeesSan Francisco, CATrier and Company is an Advertising company. They specialize in Advertising and Branding and were established in 2001.Read More
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993$5,000+10 - 49 employeesSan Diego, CABask Digital Media is an Advertising company. Their small team of employees is based in San Diego, California. Their team specializes in Advertising and Digital Strategy.Read More
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994$1,000+10 - 49 employeesLaguna Niguel, CASmith Consulting is an e-commerce development company. The team provides E-Commerce Development and Custom Software Development, and the firm is based in Laguna Niguel, California.Read More
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995$10,000+10 - 49 employeesLos Angeles, CARead More
Top Notch Dezigns® is a small web design agency. Founded in 2004, the firm is headquartered in New York, New York; Melville, New York; Los Angeles, California and London, England. Their team specializes in Web Design, Search Engine Optimization, Pay Per Click, Web Development, and more.
Clients
Home Depot Meadowbrook Financial Mortgage Bankers Long Island University Student Nursing Association (SNA) CassoneIndustries
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996$1,000+250 - 999 employeesWest Hollywood, CAThe Rocket Retail is a midsize e-commerce development firm in San Francisco, California. They specialize in e-commerce development, back office outsourcing, content marketing, search engine optimization, and more and were launched in 2016.Read More
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997$1,000+2 - 9 employeesLos Angeles, CAEstablished in 2018, Quickstrike Studios is a small media planning and buying company based in Los Angeles, California. Their team specializes in Media Planning & Buying and Advertising.Read More
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998$1,000+2 - 9 employeesLos Angeles, CAWeb design agency Sites By Us specializes in Web Design and Digital Strategy. They were founded in 2016.Read More
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999Undisclosed10 - 49 employeesRiverside, CA5 Core Inc is a Contract Manufacturing company. They were founded in 2020, and their services include Contract Manufacturing and Social Media Marketing.Read More
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1000$1,000+50 - 249 employeesAlbany, CAESP WebZing, a custom software development company, was launched in 2001. They focuses on Custom Software Development and UX/UI Design.Read More
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1001$1,000+50 - 249 employeesCampbell, CACreative Logo Agency is a Logo company. The firm is located in Campbell, California. Their team provides Logo and Social Media Marketing.Read More
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1002$10,000+50 - 249 employeesCovina, CAData Annotation Services company INFOTANKS MEDIA is based in Covina, California. They provide Data Annotation Services and Digital Strategy.Read More
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1003$1,000+10 - 49 employeesLos Angeles, CABased in Los Angeles, California, Social Influence is a small PPC company. Their services include Pay Per Click and Social Media Marketing.Read More
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1004$1,000+10 - 49 employeesAuburn, CANeural Experience (NX) is a Marketing Strategy company launched in 2019. The company specializes in Marketing Strategy and Search Engine Optimization, and is small.Read More
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1005$1,000+10 - 49 employeesLos Angeles, CALevel Up 360 Inc is a small Los Angeles, California-based SEO agency. The team focuses on Search Engine Optimization and Pay Per Click.Read More
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1006$1,000+2 - 9 employeesSanta Ana, CAROC Studios is a video production agency. Founded in 2016, the firm is in Santa Ana, California. Their team specializes in Video Production and Social Media Marketing.Read More
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1007Undisclosed2 - 9 employeesLos Angeles, CAGeneration Marketing, a Digital Strategy company, was established in 2018. The team offers Digital Strategy and Marketing Strategy.Read More
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1008$5,000+2 - 9 employeesLos Angeles, CABlacksmith Digital is a Digital Strategy company. The team provides Digital Strategy and Conversion Optimization, and the agency is headquartered in Los Angeles, California.Read More
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1009$1,000+2 - 9 employeesLos Angeles, CABarragan Media is a web development company. Their team is located in Los Angeles, California and Ensenada, Mexico and focuses on Web Development and Web Design.Read More
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1010$10,000+10 - 49 employeesIrvine, CATRAFFIK is a website development company. They offer Web Development and Search Engine Optimization and were launched in 2000.Read More
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1011$5,000+10 - 49 employeesGlendale, CAStudio III Marketing is a Digital Strategy company. The small Glendale, California-based team offers Digital Strategy and Advertising. The firm was established in 2011.Read More
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1012$1,000+10 - 49 employeesSanta Monica, CAHarmonica is a Content Marketing company. The team focuses on Content Marketing and Public Relations, and the firm is based in Santa Monica, California.Read More
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1013$5,000+10 - 49 employeesThousand Oaks, CASmall Advertising company Ad Leverage, is located in Thousand Oaks, California. Their services include Advertising and Pay Per Click.Read More
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1014$5,000+10 - 49 employeesBeverly Hills, CABranding agency Stauffer offers Branding and Web Design. They are in Beverly Hills, California.Read More
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1015Undisclosed10 - 49 employeesFolsom, CALEADconcept, a software development company, is located in Lahore, United Arab Emirates and Folsom, California. They focus on Custom Software Development and Graphic Design and were launched in 2003.Read More
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1016Undisclosed10 - 49 employeesSan Ramon, CACP Communications is a web design agency. They were established in 1982 and focus on Web Design and Web Development.Read More
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1017$1,000+10 - 49 employeesCamarillo, CASocial Spice Media is a social media marketing firm. The small Camarillo, California-based team provides Social Media Marketing and Web Design. The agency was launched in 2014.Read More
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1018Undisclosed10 - 49 employeesLos Angeles, CALaunched in 2010, CO/LAB Marketing is a small branding agency. Their services include Branding and Marketing Strategy.Read More
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1019$5,000+2 - 9 employeesSan Jose, CAConure Media is an Advertising company founded in 2011. The company provides Advertising and Branding, and is small.Read More
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1020$1,000+2 - 9 employeesSan Juan Capistrano, CAWeb IT Pros is a small San Juan Capistrano, California-based SEO agency. The team provides Search Engine Optimization and Advertising.Read More
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Check out a SEO Company in California with the most new reviews in the past 12 months.
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