Ranked · 433 of 544 assessed
Ordered by Agency List ScoreSEO and PPC services for inbound lead capture and search visibility
Data-driven digital marketing for diverse industries and measurable growth.
Branding and PPC services for inbound lead capture and search visibility
AI-powered digital marketing and SEO services for diverse industries
Healthcare marketing with digital strategies and branding expertise
Results-driven digital marketing with in-house expertise and no contracts
Performance marketing with TikTok and Google Ads expertise
Business-centric web design and SEO solutions
Amazon and Walmart account management, advertising, listing optimization, and DSP retargeting
Marketing for drug rehab, mental health, and telehealth treatment providers nationwide
Strategic marketing for challenger brands with data-driven creativity
Performance marketing for real estate and tech growth
Creative marketing solutions for businesses of all sizes
Medical marketing with SEO and digital strategy expertise
Brand journalism and digital marketing for diverse industries
Data-driven marketing with cross-device and brand-safe solutions
Web design and SEO services for small businesses in Redding
International SEO and paid media for B2B demand generation across markets
Influencer marketing with brand strategy and talent management expertise.
Integrated marketing with web development and creative design
Digital marketing and customer acquisition with SEO and paid media expertise
Creative digital marketing and production for luxury and lifestyle brands
Driving demand with data-driven strategy and creative solutions
Transforms clicks into clients with strategic digital marketing
Crafts data-driven strategies and impactful creative for diverse industries
SEO, content marketing, and web design for Orange County businesses
PPC and paid services for inbound lead capture and search visibility
Boosts ROI with PPC, SEO, and Conversion Optimization
Boosting profits with data-driven digital marketing strategies
Digital and social marketing for entertainment and brands
Data-driven marketing strategies for growth and brand recognition
Crafting custom platforms and digital experiences for diverse industries
Social campaigns, Google Ads, SEO, and brand identity for consumer-facing businesses
Digital strategy and advertising for powerhouse brands
Empowering chiropractors with digital direct response marketing
Data-driven digital marketing for measurable growth
SEO and search services for inbound lead capture and search visibility
SEO, PPC, and Social Media Services in Los Angeles
Agile digital marketing with SEO, PPC, and conversion optimization
Digital marketing and design for growth and engagement
AI-driven AEO and digital marketing for smart brands
Development and dev services for inbound lead capture and search visibility
Performance marketing for addiction treatment centers driving admissions
Creative branding and digital marketing for diverse industries
Data-driven SEO and social media for small businesses
Transforming brands with strategic digital marketing and web design
Interactive design and development for entertainment and education sectors
Digital marketing strategies with SEO and AI optimization
Dental marketing and website solutions for thriving practices
AI optimization and SEO for measurable digital growth
Digital marketing with video production and lead generation expertise
B2B lead generation and content marketing for tech companies
Guiding brands with strategy, design, and creativity
SEO, content, and paid media built around AI and generative search
WordPress development and SEO solutions for e-commerce success
Healthcare digital marketing for patient acquisition and retention
SEO, local search, and conversion-focused websites built for law firm case intake
Boosts online presence with SEO and PPC strategies
Web design and digital marketing for small businesses
Chiropractic, veterinary, and eye care marketing with SEO and targeted ads
Social media marketing across Facebook, Instagram, and LinkedIn
Digital marketing and creative services for measurable results
Digital marketing and eCommerce solutions with data-driven strategies
Drives growth with paid media and creative strategy
Solving business problems with branding, UX/UI design, and video
Crafting award-winning creative work with strategic digital marketing
Creative brand identity and digital marketing with flexible collaboration
Web design and digital marketing for businesses and nonprofits
Digital marketing systems for healthcare and medical practices
Digital marketing and programmatic advertising for global brands
Paid search and local SEO for home services, legal, dental, and ecommerce clients
Technical SEO, local search, PPC, and content for Los Angeles businesses
Digital strategy, branding, and web design for startups through enterprise clients
Strategic branding and web design that tells your unique story
StoryBrand messaging and digital marketing for impactful brand growth
Medical website design and digital marketing for healthcare providers and clinics
Expert digital marketing for hotels, restaurants, and resorts
Offers SEO, PPC, and social media advertising services
SEO and AEO campaigns for lead generation and visibility
Engagement marketing and social media strategies for brand growth
Marketing technology and web development for diverse industries
Performance marketing and AI-driven strategies for measurable brand growth.
Specialists in search engine placement and digital marketing
Harmonizes digital marketing with strategy and content creation
Web design, SEO, and PPC for client conversion
Transforms brands with digital marketing and brand strategy
Connecting brands with consumers through experiential marketing and sponsorships
Strategic marketing communications for industry innovators in technology and health.
ROI-driven digital marketing for franchises and multi-location businesses
Technical SEO, local SEO, and link building for dentists, plumbers, and law firms
Digital marketing and Odoo web development expertise
Autonomous agents, CRM integration, and custom software for e-commerce, healthcare, and finance
Marketing strategies and execution for impactful brand growth
Empowering small businesses with web design and digital marketing
Web and SEO services for inbound lead capture and search visibility
Brand strategy, design, and advertising with a challenger mindset
Showing the top 96 of 433 ranked agencies.
Also in California · 211 not ranked here
100 have not yet been assessed on the Agency List Score. Alphabetical.About this ranking
What this page ranks
This page ranks 433 of the 544 assessed SEO agencies in California — the ones carrying a published score — out of 644 listed.
The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.
Cohorts and awards
Agencies are compared within a cohort — here, SEO in California. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 544, so the strongest award available here is top 1%.
The 100 SEO agencies not yet assessed are listed on this page but not ranked.
A further 111 were assessed and no published evidence of their work was found, so no score is shown for them.
Paid placement
Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.
Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.
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Categories in California
SEO nearby
Questions
- How many SEO agencies are in California?
- 644 are listed on Agency List in California. 544 of them have been assessed on the Agency List Score as of October 2026, and 433 of those carry a published score.
- Which SEO agency in California is ranked highest?
- 6 agencies share the top Agency List Score of 98 among the 544 assessed agencies in SEO in California, so no single agency is named the highest.
- Why are 211 SEO agencies listed here but not ranked?
- 100 of the 644 listed have not yet been assessed on the Agency List Score. A further 111 were assessed and no published evidence of their work was found, so no score is shown for them. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
- How is the ranking determined?
- By Agency List Score, within the SEO in California cohort of 544 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.