Top SEO Companies in California
2,921 Companies
List of the Top California SEO Agencies
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$1,000+$100 - $149 / hr250 - 999Serves CaliforniaServices provided
50% Search Engine Optimization30% Pay Per Click10% Advertising +1 service10% Social Media MarketingSee all 347 projectsSmartSites is a prominent SEO agency offering comprehensive digital marketing services, including Search Optimization and PPC management, to enhance online visibility and website ranking. Across multiple reviews, 100% of clients commend their professionalism, responsiveness, and ability to deliver timely results. A notable 80% highlight significant improvements in search engine rankings and organic traffic, reflecting their proficiency in Search Engine Marketing and Organic Search Optimization.
Reviews mention Great team
Clients consistently express high satisfaction with SmartSites, particularly highlighting the professionalism and expertise of team members such as Haadi and Katie. Feedback indicates that team members treat clients' projects as their own, providing timely communication and effective strategies. One client noted, 'it felt like he was a part of our own team,' while another praised the company's transparency and engagement. Overall, the sentiment surrounding the team is overwhelmingly positive, with clients reporting excellent collaboration and results.-
Web Design, Marketing & SEO for Managed Services Provider
5.0 Sep 10, 2024The team is extremely thorough and efficient. Their team and the attention to detail that is provided to my account were most impressive.
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Web Design for Event Company
5.0 Jul 23, 2019The level of attention and dedication from everyone on the team was impressive. All the teams worked in unison without too much interaction from us.
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Email Marketing for Healthcare Company
5.0 Feb 13, 2025They were very prompt, professional, and organized. I found them great to work with overall and highly enjoyed the experience.
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PPC Strategy & Management for Gourmet Food Products Retailer
5.0 Oct 1, 2025The most impressive part of the company was the campaign manager, Haadi, who was assigned to us! It felt like he was a part of our own team and he treated the brand like it was his own from the very beginning. He was always in contact with us and developing new strategies along the way to help us meet and exceed our goals.
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118 of 134 Search Engine Optimization reviews are 5 stars10 new reviews for Search Engine Optimization in past 6 months$50,000 – $199,999 avg. project costRead 134 ReviewsSearch Engine Optimization PROJECT HIGHLIGHT
SEO & Web Dev for Hospitality & Architectural Design Firm
5.0 — SmartSites provides SEO and web development services for a hospitality and architectural design firm. The team is also responsible for competitor research, keyword strategy, and technical auditing. Read moreWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients consistently commend SmartSites for their competitive pricing and overall value for money. Multiple reviews highlight the company's ability to deliver effective PPC campaigns, leading to increased leads and reduced cost per conversion. For instance, one client noted a substantial ROAS improvement from 2-3x to 7-9x. Another remarked on the excellent communication and responsiveness of the team, ensuring a high level of service that justifies the investment. Overall, clients feel they receive excellent service and measurable results relative to their budget.Was this helpful?
View PackagesBuild a foundation of growth with 💡 SEO services
We generate millions of visitors and sales monthly through organic search. Read what businesses like you have said in our over 1,000 5 star reviews online. Call ☎️ 201-870-6000 for a free consultation.Was this helpful?
$1,000+$50 - $99 / hr50 - 249Serves CaliforniaServices provided
75% Search Engine Optimization10% Content Marketing10% Web Design +1 service5% Conversion OptimizationSee all 52 projectsBoostability is an SEO agency that specializes in enhancing online visibility through organic search optimization and website SEO services. Across the reviews, 80% of clients highlight their effective communication and professional project management. While some clients noted a need for improved backlink strategies, 90% of reviewers praised Boostability's ability to achieve significant website ranking improvements on search engine results pages, particularly reaching the first page on Google.
Reviews mention Trustworthy
Clients consistently express high trust in Boostability's professionalism and expertise. One reviewer noted feeling 'at ease' due to the company's authentic demeanor and knowledge, praising their reliable support. Another client, despite initial concerns from past reviews, found their experience to be positive, stating that Boostability effectively addressed their needs. Overall, the sentiment surrounding trustworthiness is overwhelmingly positive, with clients highlighting Boostability's commitment to understanding and meeting their specific goals.-
SEO Services for Print & Web Design Company
5.0 Nov 6, 2020After two years working with Boostability, I can whole-heartedly assess that they are number 1 in the SEO industry. The representatives with whom I have worked take a real personal and professional interest in the needs of our company and they are reliable and trustworthy. They have continually impressed me with their knowledge of SEO and their professional demeanor.
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27 of 39 Search Engine Optimization reviews are 5 stars1 new review for Search Engine Optimization in past 6 monthsLess than $10,000 avg. project costRead 39 ReviewsSearch Engine Optimization PROJECT HIGHLIGHT
SEO Services for Digital Marketing Company
5.0 — Boostability provides SEO services for a digital marketing company. The team is responsible for keyword optimization, backlink building, and content recommendations to improve search rankings. Read moreWas this helpful?
Industry Experience
Boostability has received positive feedback across various industries, notably in Advertising & Marketing, Legal, Healthcare, Manufacturing, and Education. Clients commend their expertise in SEO and online presence enhancement, with particular praise for timely communication and effective project management. The sentiment is largely favorable, highlighting strengths in driving organic traffic and improving search rankings. Industries such as Healthcare and Education report significant increases in online visibility, while Manufacturing and Legal clients appreciate tailored solutions. Overall, Boostability appears well-suited for businesses seeking to enhance their digital marketing efforts.
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Advertising & marketing Legal Construction Manufacturing Healthcare Education Pharmaceuticals Hospitality & leisure Arts, entertainment & music Real estate Financial services Retail Consumer Products Telecommunications Automotive Software Nonprofit Utilities Transportation Other Industry IT ServicesWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Overall, client feedback on Boostability indicates a positive sentiment regarding their cost and value for money. Clients appreciate the flexible pricing structure, allowing them to select budgets that fit their needs. One client noted, 'The pricing structure with Boostability really sets them apart from other SEO companies who want a big lump sum up front.' However, there are concerns about transparency, with some clients suggesting a need for clearer communication regarding deliverables. Overall, clients find that Boostability provides significant value relative to their investment.Was this helpful?
$1,000+$100 - $149 / hr250 - 999Serves CaliforniaServices provided
60% Search Engine Optimization20% Pay Per Click5% Content Marketing +3 services5% Digital Strategy5% Social Media Marketing5% Web DesignSee all 144 projectsIntero Digital is a versatile SEO agency providing services like Search Engine Optimization, Website SEO Services, and Digital Visibility Enhancement. While a minority, approximately 14% of reviews were negative, most feedback is overwhelmingly positive, highlighting their effective project management, resulting in notable increases in online visibility and website traffic metrics, with some clients experiencing up to 30% sales growth.
100 of 107 Search Engine Optimization reviews are 5 stars3 new reviews for Search Engine Optimization in past 6 months$10,000 – $49,000 avg. project costRead 107 ReviewsSearch Engine Optimization PROJECT HIGHLIGHT
SEO for Online Education Company
5.0 — Intero Digital provides ongoing SEO services for an online education company. The team optimizes pages, title tags, meta descriptions, and content and manages Google Ads. Read moreWas this helpful?
Industry Experience
Intero Digital has garnered mixed feedback across various industries. In construction, they faced criticism for ineffective SEO results. Conversely, in retail and healthcare, clients reported significant improvements in website traffic and organic search rankings. The advertising and marketing sector noted strong project management and communication, while some clients in financial services mentioned concerns about responsiveness. Overall, Intero Digital demonstrates expertise in retail, healthcare, and certain aspects of advertising and marketing, although potential clients in construction may wish to proceed with caution.
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Advertising & marketing Restaurants Retail Automotive Manufacturing Medical Financial services Consumer Products Sports Software Hospitality & leisure Telecommunications Food & Beverages Energy & natural resources Education Arts, entertainment & music Information technology Beauty & Cosmetics Agriculture Business services Nonprofit Wellness & Fitness Transportation Legal Pharmaceuticals Consulting Legal Cannabis Environmental Services Research Gaming Construction Healthcare EngineeringWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Client feedback on Intero Digital highlights significant concerns regarding cost and value for money. Multiple clients reported dissatisfaction with the results delivered relative to the fees paid, with one stating they felt 'robbed of time and money' after a lack of effective service. Conversely, some clients expressed satisfaction with the pricing and perceived value, noting improvements in online visibility and ROI. Overall sentiment appears mixed, with some clients valuing the cost-effectiveness while others found the services lacking in return on investment.Was this helpful?
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$1,000+$50 - $99 / hr50 - 249Serves CaliforniaServices provided
70% Search Engine Optimization10% Advertising10% Pay Per Click +1 service10% Web DesignSee all 111 projectsFunnel Boost Media is a highly regarded SEO agency specializing in search optimization, digital visibility enhancement, and website development. Across reviews, 100% of clients highlight the exceptional value and professionalism offered, with notable improvements in online visibility and organic search optimization. Clients frequently commend the team’s proactive communication and timely delivery, with 70% emphasizing their responsiveness and effective project management.
10 of 11 reviews are 5 stars9 new reviews for Search Engine Optimization services$10,000 – $49,000 avg. project costRead 11 Recent ReviewsReviewed 11 times in the past 6 months
In the past six months, client feedback for Funnel Boost Media has been overwhelmingly positive. Clients praised their timely delivery and exceptional communication, with one CEO noting their 'incredible customer service.' Many highlighted significant improvements in SEO rankings and lead generation, with measurable increases in website traffic. The professionalism and expertise of the team were frequently mentioned, with clients feeling valued throughout the process. Overall, clients expressed high satisfaction, often emphasizing the company's ability to deliver quality results at competitive prices.Was this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Overall, clients express satisfaction with Funnel Boost Media's cost-effectiveness and value for money. Many emphasized that their pricing fits within budget while delivering exceptional service and results. For instance, one client noted they received 'exceptional value relative to their pricing,' while another highlighted that the level of service 'rivaled firms at a much higher price point.' However, one review pointed out that the pricing was significantly higher than competitors, indicating some variability in client perceptions of value. The prevailing sentiment is largely positive regarding the company's affordability and quality.Was this helpful?
More responsive than most other service providers
Get in TouchFunnel Boost Media is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.Was this helpful?
View PackagesBuild Your Custom Marketing Funnel At Your Speed
How well do you want your marketing funnel to perform? We have SEO packages that work with any size company and nearly any marketing budget. Our goal is to make sure your company is being found in the search engines, driving traffic to your website, and converting visitors into actual business.Was this helpful?
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UndisclosedUndisclosed250 - 999San Francisco, CA
Services provided
20% Search Engine Optimization20% Application Testing20% Conversion Optimization +4 services10% AI Development10% E-Commerce Development10% Email Marketing10% UX/UI DesignAB Tasty is a midsize Conversion Optimization company. Founded in 2009, the team offers Conversion Optimization and Search Engine Optimization.
Read moreSee All Locations (2)San Francisco, CA
535 Mission Street
San Francisco, CA 941051
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Get My MatchesWhy Trust Clutch
At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.
Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.
Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.
We evaluate service providers using a structured methodology that combines:
- In-depth client interviews and ratings
- Comprehensive project details
- Market presence
- Portfolio examples and industry recognition
This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.
Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.
We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.
Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.
Rollover to see company insights or click a company below for more details.
A Clutch Leaders Matrix provides a broad view of the top-performing companies in a particular service or location. Each company featured in a Leaders Matrix is evaluated based on Focus and Ability to Deliver. The size of each circle indicates that company’s size.
By using verified reviews, focused service details, and real project data, the Leaders Matrix highlights companies that consistently deliver and stand out from the rest. Each company’s position is based on how well they focus on a service area and how consistently they deliver results, helping you make informed, confident decisions. Learn More
Focus (x-axis)
Focus accounts for a company’s specialization within a certain service.
Ability to Deliver (y-axis)
Ability to Deliver considers three criteria:
- Client feedback and reviews
- Work experience and previous projects
- Market presence and reputation in the industry
List of the Top 15 California SEO Agencies
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$50,000+$300+ / hr50 - 249San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
75% Search Engine Optimization25% Other -
$10,000+$100 - $149 / hr250 - 999San Diego, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
40% Search Engine Optimization60% Other -
$1,000+$50 - $99 / hr50 - 249Los Angeles, CA
Ability to deliver
38.6/40.020/20 Reviews10/10 Clients & Experience8.6/10 Market PresenceService focus
70% Search Engine Optimization30% Other -
$1,000+$100 - $149 / hr10 - 49San Diego, CA
Ability to deliver
37.8/40.018.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
80% Search Engine Optimization20% Other -
$1,000+$150 - $199 / hr2 - 9Anaheim, CA
Ability to deliver
37.6/40.018/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
100% Search Engine Optimization -
$1,000+$100 - $149 / hr50 - 249San Diego, CA
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Search Engine Optimization40% Other -
$1,000+$100 - $149 / hr50 - 249Los Angeles, CA
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Search Engine Optimization60% Other -
$5,000+Undisclosed50 - 249Los Angeles, CA
Ability to deliver
34.3/40.016.4/20 Reviews8.1/10 Clients & Experience9.8/10 Market PresenceService focus
60% Search Engine Optimization40% Other -
$1,000+$25 - $49 / hr250 - 999Anaheim, CA
Ability to deliver
34.1/40.017.2/20 Reviews9/10 Clients & Experience7.9/10 Market PresenceService focus
90% Search Engine Optimization10% Other -
$5,000+$200 - $300 / hr10 - 49La Mirada, CA
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Search Engine Optimization40% Other -
$1,000+Undisclosed10 - 49Los Angeles, CA
Ability to deliver
34.1/40.017.6/20 Reviews9.7/10 Clients & Experience6.8/10 Market PresenceService focus
70% Search Engine Optimization30% Other -
$1,000+$100 - $149 / hr10 - 49San Francisco, CA
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
35% Search Engine Optimization65% Other -
$1,000+$100 - $149 / hr10 - 49Carlsbad, CA
Ability to deliver
33/40.017.2/20 Reviews10/10 Clients & Experience5.8/10 Market PresenceService focus
80% Search Engine Optimization20% Other -
$1,000+Undisclosed10 - 49San Diego, CA
Ability to deliver
36.1/40.017.2/20 Reviews9.6/10 Clients & Experience9.3/10 Market PresenceService focus
50% Search Engine Optimization50% Other -
$1,000+Undisclosed50 - 249San Diego, CA
Ability to deliver
31.9/40.016.8/20 Reviews8.3/10 Clients & Experience6.9/10 Market PresenceService focus
60% Search Engine Optimization40% Other -
$5,000+$100 - $149 / hr250 - 999San Diego, CA
Ability to deliver
37.4/40.018/20 Reviews10/10 Clients & Experience9.4/10 Market PresenceService focus
20% Search Engine Optimization80% Other -
$1,000+$50 - $99 / hr10 - 49Los Angeles, CA
Ability to deliver
31.2/40.016.8/20 Reviews8/10 Clients & Experience6.5/10 Market PresenceService focus
70% Search Engine Optimization30% Other -
$5,000+Undisclosed50 - 249Los Angeles, CA
Ability to deliver
30.8/40.016/20 Reviews9.1/10 Clients & Experience5.7/10 Market PresenceService focus
72% Search Engine Optimization28% Other -
$5,000+$150 - $199 / hr10 - 49Irvine, CA
Ability to deliver
34.4/40.017.4/20 Reviews8.1/10 Clients & Experience8.8/10 Market PresenceService focus
50% Search Engine Optimization50% Other -
$5,000+$150 - $199 / hr10 - 49Irvine, CA
Ability to deliver
37.3/40.018.2/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
30% Search Engine Optimization70% Other -
UndisclosedUndisclosed10 - 49Simi Valley, CA
Ability to deliver
32.1/40.015.8/20 Reviews8.3/10 Clients & Experience8/10 Market PresenceService focus
60% Search Engine Optimization40% Other -
$1,000+$100 - $149 / hr50 - 249Costa Mesa, CA
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
10% Search Engine Optimization90% Other -
$10,000+$150 - $199 / hr50 - 249Carlsbad, CA
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Search Engine Optimization90% Other -
$5,000+$100 - $149 / hr10 - 49Encinitas, CA
Ability to deliver
37.9/40.020/20 Reviews9.4/10 Clients & Experience8.5/10 Market PresenceService focus
20% Search Engine Optimization80% Other -
$1,000+$100 - $149 / hr10 - 49Asbury Park, NJ
Ability to deliver
29.5/40.016.2/20 Reviews8/10 Clients & Experience5.3/10 Market PresenceService focus
70% Search Engine Optimization30% Other -
Undisclosed$100 - $149 / hr10 - 49Westlake Village, CA
Ability to deliver
34.2/40.016.4/20 Reviews8.5/10 Clients & Experience9.3/10 Market PresenceService focus
40% Search Engine Optimization60% Other -
$1,000+$50 - $99 / hr10 - 49San Diego, CA
Ability to deliver
39.1/40.020/20 Reviews9.7/10 Clients & Experience9.4/10 Market PresenceService focus
10% Search Engine Optimization90% Other -
$10,000+$100 - $149 / hr10 - 49Sacramento, CA
Ability to deliver
39.1/40.019.6/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
10% Search Engine Optimization90% Other -
$5,000+Undisclosed2 - 9Manhattan Beach, CA
Ability to deliver
30.7/40.016.8/20 Reviews9.3/10 Clients & Experience4.6/10 Market PresenceService focus
70% Search Engine Optimization30% Other -
$10,000+$150 - $199 / hr10 - 49San Diego, CA
Ability to deliver
35.2/40.017/20 Reviews10/10 Clients & Experience8.2/10 Market PresenceService focus
30% Search Engine Optimization70% Other
Latest SEO Articles
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Answer Engine Optimization Is Reshaping How Businesses Get Chosen
Search behavior is changing quickly, and many business leaders are feeling the effects before they can clearly name the cause. Read here to find out how...
Clutch-Powered Growth: How Funnel Boost Media Leverages Clutch to Compete with the Biggest SEO Firms
Funnel Boost Media began in 2012 with Ryan Duncan running the show in San Antonio. In 2017, Jacob Dial joined as a partner, bringing the drive and hustle...
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