Top 100 eCommerce Marketing Agencies in California
The Best of May 2026Looking for a top eCommerce marketing agency in California?
In the business-to-business (B2B) sector, eCommerce marketing agencies are essential partners for businesses seeking to maximize their online sales and growth potential. By collaborating with eCommerce marketing agencies, businesses can optimize their digital marketing efforts, improve their conversion rates, and achieve sustainable growth in the rapidly evolving eCommerce landscape.
To assist you in your search for a partner, we’ve compiled this list of the top eCommerce marketing companies in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best California eCommerce Marketing Services
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1$5,000+10 - 49 employeesLos Angeles, CATop Growth Marketing INC is an Email Marketing company. They are located in Los Angeles, California and have a small team that provides Email Marketing, Pay Per Click, Ecommerce Marketing, and Social Media Marketing. The company was established in 2012.Read More
Clients
Shopify Playboy MyIntent AppSumoIndustries
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2$5,000+50 - 249 employeesLos Angeles, CAFounded in 2015, SeedX Inc. Is an Ecommerce Marketing company. Based in Los Angeles, California; Austin, Texas and New York, New York, their midsize team offers Ecommerce Marketing, Advertising, Search Engine Optimization, Web Design, and more.Read More
Clients
American Marketing Association 1-800-FlowersIndustries
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3$1,000+2 - 9 employeesLos Angeles, CAWEBITMD, a small pay per click agency, is in Los Angeles, California; New York, New York and Dallas, Texas. They focus on Pay Per Click, Ecommerce Marketing, Content Marketing, and CRM consulting and SI and were established in 2008.Read More
Clients
Hyatt HotelsIndustries
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4$5,000+10 - 49 employeesSanta Rosa, CARead More
The Engine is Red is a full-service digital agency with locations in Santa Rosa, Calif., and Minneapolis. The agency was founded in 2008 and has around 20 employees who specialize in marketing strategy, branding, web design and development, and mobile app development, among other services. It serves clients in the health care, nonprofit, retail, education, energy, and financial industries.
Clients
Rombauer VineyardsIndustries
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5$5,000+10 - 49 employeesWestlake Village, CAIkon Digital Media is an Affiliate Marketing company. They are in Westlake Village, California and have a small team. Their services include Affiliate Marketing, Public Relations, Social Media Marketing, and Ecommerce Marketing.Read More
Clients
True Classic Breeo NEMO Equipment Kent BicyclesIndustries
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6$10,000+1,000 - 9,999 employeesSan Diego, CAMedia planning & buying company Tinuiti was founded in 2004. The company offers Media Planning & Buying, Advertising, Social Media Marketing, Pay Per Click, and more and has a large team.Read More
Clients
Tommy BahamaIndustries
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7$5,000+10 - 49 employeesCarlsbad, CARead More
Digital agency L7 Creative is based in Carlsbad, Calif. with a second office in Boston. Since 2001, their team of 28 has been specializing in branding, advertising, marketing strategy, and more.
Clients
Nutrex HawaiiIndustries
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8$5,000+10 - 49 employeesSan Francisco, CARead More
Stackmatix is a marketing consulting agency based in San Francisco. Established in 2018, there are two people on the team. Their services include digital strategy, social media marketing, and pay per click advertising.
Clients
Invisible TechnologiesIndustries
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9$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.
Clients
2K GamesIndustries
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10$5,000+10 - 49 employeesLos Angeles, CARead More
Advertising company Yourhouse Marketing was launched in 2022. The small Los Angeles, California-based team offers advertising.
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11$1,000+10 - 49 employeesSanta Monica, CAIOI Solutions, a pay per click agency, is based in Santa Monica, California. They focus on Pay Per Click, Search Engine Optimization, Conversion Optimization, Web Design, and more and were launched in 2018.Read More
Clients
105 Packaging Onyx Graphics Pacific Hardwood FlooringIndustries
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12$50,000+10 - 49 employeesSan Diego, CAIn San Diego, California, MMG MarketPage (formerly Myers Media Group) is a small Content Marketing company. Launched in 2007, the team specializes in Content Marketing, Search Engine Optimization, Market Research, Marketing Strategy, and more.Read More
Clients
Expedia (All Global Markets) Staples Advance Auto Parts Air AsiaIndustries
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13$5,000+2 - 9 employeesWest Hollywood, CARead More
Intensify is a boutique advertising agency in Los Angeles. Founded in 2014, their 1-person team provides web design, social media marketing, digital strategy, marketing strategy, and advertising services. Most clients are small businesses.
Clients
NailbooIndustries
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14$1,000+10 - 49 employeesSan Diego, CARead More
OPTYO is a branding firm. Established in 2018, the small firm is headquartered in San Diego, California. Their services include branding, social media marketing, affiliate marketing, search engine optimization, and more.
Clients
Hero BarbellIndustries
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15$1,000+10 - 49 employeesCovina, CARead More
Milyon Digital is a SEO agency founded in 2022. The agency provides search engine optimization, branding, digital strategy, social media marketing, and more and has a small team.
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16$10,000+2 - 9 employeesWestminster, CAIn , Profit partners is a. The small team specializes in. The company was founded in 2022.Read More
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17Undisclosed250 - 999 employeesSan Diego, CATEAM LEWIS, a PR company, is in San Diego, California; Milano, Italy and Chicago, Illinois. The agency offers Public Relations, Digital Strategy, Branding, Social Media Marketing, and more and has a midsize team.The agency was established in 1995.Read More
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18$1,000+10 - 49 employeesKentfield, CARead More
GrowMojo is a PPC agency. They are located in Beograd, California and have a small team. The firm provides pay per click, digital strategy, social media marketing, video production, and more.
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19$5,000+2 - 9 employeesLos Angeles, CAConvertlane is a small Conversion Optimization company. They specialize in Conversion Optimization, Ecommerce Marketing, and Web Design and were founded in 2023. The company is in Los Angeles, California.Read More
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20$1,000+10 - 49 employeesMarina del Rey, CAStructured Agency is an Ecommerce Marketing company. The Marina del Rey, California-based firm was founded in 2018. The small team offers Ecommerce Marketing, Email Marketing, Conversion Optimization, Media Planning & Buying, and more.Read More
Industries
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21$1,000+2 - 9 employeesSan Francisco, CARead More
Launched in 2023, thinker ecommerce is an Ecommerce Marketing company. Their small team is based in San Francisco, California and Miami, Florida. Their team specializes in Ecommerce Marketing, E-Commerce Development, Artificial Intelligence, AI Consulting, and more.
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22$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.
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23$10,000+2 - 9 employeesLos Angeles, CANucleus is a small web design company. They provide Web Design, Web Development, Ecommerce Marketing, Search Engine Optimization, and more and were established in 2013. The agency is headquartered in Prelog, Croatia and Los Angeles, California.Read More
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24$25,000+2 - 9 employeesSan Francisco, CAErra is a small San Francisco, California-based corporate photography company. Launched in 2016, the team provides corporate photography, video production, branding, ecommerce marketing, and more.Read More
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25Undisclosed10 - 49 employeesLos Angeles, CASmall email marketing company Gambit Digital, is headquartered in. The team provides email marketing.Read More
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26$1,000+2 - 9 employeesCarlsbad, CAContent Marketing company Ethos Ink is based in Carlsbad, California. The small company was established in 2024. Their services include Content Marketing, Search Engine Optimization, Ecommerce Marketing, Performance Marketing, and more.Read More
Industries
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27$1,000+10 - 49 employeesSan Diego, CAHeadquartered in San Diego, California, Blue Media Marketing, Inc. Is a SEO agency. Founded in 2001, the small team offers search engine optimization, social media marketing, pay per click, e-commerce development, and more.Read More
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28$100,000+10 - 49 employeesCosta Mesa, CAFounded in 2014, Blue Light Media is a social media marketing agency. The team provides Social Media Marketing and Corporate Photography.Read More
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29$1,000+2 - 9 employeesBeverly Hills, CABeverly Hills SEO Agency is a small PR agency based in Beverly Hills, California. They offer public relations, digital strategy, social media marketing, content marketing, and more and were established in 2019.Read More
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30$5,000+2 - 9 employeesEncinitas, CAAbyssal Digital, an ecommerce marketing company, was launched in 2017. The company focuses on ecommerce marketing and has a small team. The company is located in Encinitas, California.Read More
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