Top 100 eCommerce Marketing Agencies in California
The Best of December 2025Looking 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 established in 2012. Their small team is headquartered in Los Angeles, California. The firm offers Email Marketing, Pay Per Click, Ecommerce Marketing, Digital Strategy, and more.Read More
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AppSumoIndustries
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2$5,000+50 - 249 employeesLos Angeles, CARead More
SeedX Inc., an Ecommerce Marketing company, was launched in 2015. They are based in Los Angeles, California; Austin, Texas and New York, New York and have a midsize team. Their services include Ecommerce Marketing, Advertising, Search Engine Optimization, Web Design, and more.
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American Marketing Association 1-800-FlowersIndustries
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3$5,000+10 - 49 employeesIrvine, CARead More
Mattered, an Email Marketing company, was launched in 2021. The small Irvine, California-based team offers Email Marketing, SMS Marketing, Social Media Marketing, Web Design, and more.
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Yeti LSU Byte BurtonIndustries
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4$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
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Hyatt HotelsIndustries
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5$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.
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Rombauer VineyardsIndustries
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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
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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.
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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.
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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.
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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$5,000+10 - 49 employeesSanta Monica, CAIOI Solutions, a pay per click agency, is located in Santa Monica, California. The small team focuses on Pay Per Click, Web Design, Conversion Optimization, Search Engine Optimization, and more and was founded 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.
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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$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
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20$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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21$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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22Undisclosed10 - 49 employeesLos Angeles, CASmall email marketing company Gambit Digital, is headquartered in. The team provides email marketing.Read More
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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$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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25$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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26$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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27$1,000+2 - 9 employeesCarlsbad, CAEthos Ink is a Carlsbad, California-based branding company. The small team provides Branding, Content Marketing, Search Engine Optimization, and Ecommerce Marketing and was launched in 2024.Read More
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28$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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29$1,000+10 - 49 employeesSan Ramon, CAMind Frame Global is a branding firm. They offer branding, social media marketing, content marketing, email marketing, and more and were established in 2023. Their small team is based in San Ramon, California and San Ramon, California.Read More
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30Undisclosed2 - 9 employeesWalnut, CAHelp A Product is a PPC company. They are based in Walnut, California and have small team of experts. Their services include Pay Per Click and Product Design.Read More
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