Top 21 Search Engine Optimization Companies in California
Top 21 Search Engine Optimization Companies in California
Search engine optimization (SEO) companies in California help organizations enhance their online visibility through data-driven strategies and tactics. This industry includes agencies specializing in various aspects of digital marketing, such as content optimization, pay-per-click advertising, and web analytics. Businesses range in size from small boutique firms to large established agencies, and they serve clients from various sectors, including technology, retail, and healthcare. With rising competition and evolving search engine algorithms, these companies are increasingly adopting AI tools and advanced analytics to stay relevant and effective. The industry's future looks innovative, integrating emerging technologies to meet changing consumer behaviors.
The companies on this list represent a cross-section of California's SEO landscape, varying in size from small teams to larger organizations. Founded between 1996 and 2020, these agencies are primarily based in key regions like Los Angeles, San Diego, and San Francisco. Their specializations include traditional SEO services, e-commerce solutions, content marketing, and reputation management. Many companies operate on a partnership model, emphasizing bespoke approaches to meet unique client needs while staying competitive in the dynamic digital marketing sphere.
Continue reading to discover top search engine optimization companies in California.
Top 21 Search Engine Optimization Companies in California
1. BrightEdge
- Website: brightedge.com
- Ownership type: Venture Capital
- Headquarters: Foster City, California, United States (USA)
- Employee distribution: United States (USA) 79%, United Kingdom (UK) 13%, India 5%, Other 3%
- Latest funding: Series D, $42.8M, June 2013
- Founded year: 2007
- Headcount: 501-1000
- LinkedIn: brightedge
BrightEdge, based in Foster City, California, is a digital marketing service company that specializes in search engine optimization (SEO) and content performance management. Since its inception in 2007, BrightEdge has developed a robust platform that aids businesses in enhancing their online visibility and optimizing content for search engines. The company serves a variety of industries, including retail and technology, and is known for its data-driven approach that empowers marketers to make informed decisions. BrightEdge has attracted significant venture capital funding, with its last round raising $42.8 million in 2013. This financial backing has supported its growth and innovation in the SEO sector, allowing it to offer advanced tools such as real-time research, keyword reporting, and local SEO solutions. With a client roster that includes a substantial percentage of Fortune 100 companies, BrightEdge continues to play a pivotal role in shaping effective SEO strategies for businesses worldwide.
2. SEO Inc
- Website: seoinc.com
- Ownership type: Private
- Headquarters: Carlsbad, California, United States (USA)
- Employee distribution: Pakistan 40%, United States (USA) 24%, India 11%, Other 26%
- Founded year: 1997
- Headcount: 51-200
- LinkedIn: search-engine-optimization-inc-
SEO Inc is a digital marketing agency based in Carlsbad, California, specializing in search engine optimization and related services. Founded in 1997, the company has built a reputation for helping businesses improve their online presence through tailored SEO strategies, PPC management, and social media marketing. With a team of experienced professionals, SEO Inc has successfully executed over 2000 local SEO campaigns, showcasing their expertise in driving traffic and enhancing visibility for clients across various industries. The agency has received accolades such as being a finalist for the SEO Agency of the Year by the Landy Awards and recognition as a top enterprise SEO company for multiple consecutive years. Their commitment to innovation is evident in their recent adoption of AI technologies to enhance SEO strategies, ensuring they remain competitive and effective in the digital marketing space.
3. Bruce Clay, Inc.
- Website: bruceclay.com
- Ownership type: Private
- Headquarters: Simi Valley, California, United States (USA)
- Employee distribution: United States (USA) 76%, Vietnam 8%, Italy 8%, Other 8%
- Founded year: 1996
- Headcount: 11-50
- LinkedIn: bruce-clay-inc-
Bruce Clay, Inc. is a digital marketing agency based in Simi Valley, California, specializing in search engine optimization (SEO), pay-per-click (PPC) advertising, and content development. Established in 1996, the company has been at the forefront of the SEO industry, providing expert consulting and innovative tools to help businesses enhance their online visibility and drive traffic. Their services include SEO training, SEM/PPC management, and the development of proprietary SEO software. Bruce Clay, the founder, is often referred to as a pioneer in the SEO field, having trained numerous marketers and agencies worldwide. The company has a strong emphasis on ethical SEO practices and has developed a reputation for delivering effective solutions tailored to the unique needs of their clients. With a team of experienced SEO analysts, Bruce Clay, Inc. continues to support businesses in navigating the complexities of search marketing.
4. Noxster
- Website: noxsterseo.com
- Ownership type: Private
- Headquarters: Culver City, California, United States (USA)
- Employee distribution: United States (USA) 100%
- Founded year: 2010
- Headcount: 11-50
- LinkedIn: noxster
Noxster is a digital marketing agency based in Culver City, California, established in 2010. The company specializes in search engine optimization (SEO), social media management, and web design, catering primarily to medium-sized businesses and family brands. Noxster aims to enhance online visibility and marketing strategies through customized services. Their offerings include SEO consulting, content marketing, e-commerce SEO, and local SEO optimization, among others. Noxster has also been recognized in the industry, having been voted a top SEO agency by UpCity and featured in the 10 Best SEO list. This recognition reflects their commitment to delivering effective SEO solutions and their ability to adapt to the evolving digital marketing landscape.
5. Coalition Technologies
- Website: coalitiontechnologies.com
- Ownership type: Family Owned
- Headquarters: Los Angeles, California, United States (USA)
- Employee distribution: United States (USA) 85%, India 7%, Other 8%
- Founded year: 2009
- Headcount: 201-500
- LinkedIn: coalition-technologies
Coalition Technologies, based in Los Angeles, California, is a family-owned digital marketing agency that specializes in search engine optimization (SEO), pay-per-click (PPC) advertising, and web design. Since its inception in 2009, the company has focused on enhancing the online presence of businesses through customized marketing strategies. With a workforce of approximately 300 employees, Coalition Technologies prides itself on its rigorous hiring process, selecting only the top 1% of applicants. The agency has developed proprietary software and employs advanced techniques to ensure high-quality results for its clients. Their extensive portfolio includes over 780 successful case studies, demonstrating their ability to drive significant revenue growth for various businesses. Coalition Technologies has built a reputation for its data-driven approach and commitment to client satisfaction, boasting a high client retention rate. They have not reported any funding, indicating a self-sustaining business model that relies on the success of their marketing strategies.
6. Siege Media
- Website: siegemedia.com
- Ownership type: Private
- Headquarters: San Diego, California, United States (USA)
- Employee distribution: United States (USA) 88%, United Kingdom (UK) 6%, India 3%, Other 3%
- Founded year: 2012
- Headcount: 51-200
- LinkedIn: siege-media
Siege Media is a marketing agency based in San Diego, California, founded in 2012. The company specializes in search engine optimization (SEO), content marketing, and digital public relations (PR). With a team of approximately 112 employees, Siege Media focuses on enhancing the online presence of businesses, particularly in the SaaS, Fintech, and E-commerce sectors. Their services include technical SEO, content strategy, link building, and digital PR, all aimed at driving organic growth through data-driven strategies. The agency has a proven track record, as evidenced by their case studies showcasing substantial traffic increases for clients like Zapier and Zendesk. Siege Media's commitment to delivering measurable results has positioned them as a notable player in the SEO industry, making them a relevant choice for businesses looking to improve their online visibility.
7. Titan Growth
- Website: titangrowth.com
- Ownership type: Private
- Headquarters: San Diego, California, United States (USA)
- Employee distribution: United States (USA) 100%
- Founded year: 2004
- Headcount: 11-50
- LinkedIn: titan-growth
Titan Growth, based in San Diego, California, is a private digital marketing agency founded in 2004. The company specializes in advanced search engine optimization (SEO) and pay-per-click (PPC) management services. Titan Growth employs proprietary technology known as TitanBOT, which mimics search engine behavior to provide insights that help optimize client websites. This technology allows them to predict search engine outcomes and make informed adjustments to improve rankings. The agency has worked with a variety of clients across different industries, showcasing their ability to drive significant increases in organic traffic and conversions. Titan Growth has been recognized as a Google All-Star and Premier Partner, which highlights their expertise and effectiveness in digital marketing. Their commitment to data-driven strategies and continuous improvement positions them as a relevant player in the SEO industry.
8. Hennessey Digital
- Website: hennessey.com
- Ownership type: Private
- Headquarters: Los Angeles, California, United States (USA)
- Employee distribution: United States (USA) 97%, Romania 3%
- Founded year: 2015
- Headcount: 51-200
- LinkedIn: hennesseydigital
Hennessey Digital is a digital marketing agency based in Los Angeles, California, founded in 2015. With a team of approximately 108 employees, the agency specializes in search engine optimization (SEO), pay-per-click (PPC) advertising, content marketing, and web development. Hennessey Digital primarily serves law firms and businesses aiming to enhance their online visibility and generate leads through effective marketing strategies. The agency prides itself on delivering measurable results and maintaining open lines of communication with clients. Their approach includes a strong focus on data-driven strategies, which has led to notable successes in improving clients' organic traffic and search rankings. Hennessey Digital has also published various insights and studies, demonstrating their commitment to understanding and adapting to the evolving digital marketing landscape.
9. ResultFirst
- Website: resultfirst.com
- Ownership type: Private
- Headquarters: San Jose, California, United States (USA)
- Employee distribution: India 50%, United States (USA) 50%
- Founded year: 2003
- Headcount: 51-200
- LinkedIn: resultfirst
ResultFirst is a San Jose-based SEO agency founded in 2003, dedicated to enhancing online visibility for businesses through tailored digital marketing solutions. With a team of around 30 employees, the company operates under a unique Pay-for-Performance model, ensuring that clients only pay for results achieved. This innovative approach has attracted a diverse clientele, including enterprises seeking effective SEO strategies to boost traffic and conversions. ResultFirst offers a wide range of services, including Enterprise SEO, eCommerce SEO, and multilingual SEO, catering to businesses with specific needs. Their commitment to transparency and measurable outcomes is evident in their case studies, which showcase significant increases in organic traffic and keyword rankings for various clients. The agency's dual presence in the United States and India allows them to leverage global talent while maintaining a strong local focus. ResultFirst's extensive experience and proven track record position them as a noteworthy player in the SEO industry.
10. Submit Express
- Website: submitexpress.com
- Ownership type: Private
- Headquarters: Glendale, California, United States (USA)
- Employee distribution: United States (USA) 100%
- Founded year: 1998
- Headcount: 11-50
- LinkedIn: submit-express
Submit Express, based in Glendale, California, is a digital marketing firm that has been operational since 1998. The company specializes in search engine optimization (SEO) and online reputation management, catering primarily to businesses aiming to improve their online presence. Their service offerings include local and international SEO, Google Ads management, content writing, and various reputation management services. Submit Express has developed a reputation for helping clients navigate the complexities of online marketing, ensuring they can effectively manage their digital footprint. The firm has also created tools and resources to assist businesses in optimizing their websites and understanding SEO better. With a dedicated team of around 20 employees, Submit Express continues to adapt to the evolving digital landscape, providing valuable services to its clients.
11. RSO Consulting
- Website: rso-consulting.com
- Ownership type: Private
- Headquarters: San Francisco, California, United States (USA)
- Employee distribution: United States (USA) 52%, Spain 24%, Canada 24%
- Founded year: 2006
- Headcount: 11-50
- LinkedIn: rso-consulting
RSO Consulting, based in San Francisco, California, is a digital marketing agency founded in 2006. With a team of 26 employees, the company specializes in a variety of services, including search engine optimization (SEO), paid advertising, social media optimization, and web development. RSO Consulting focuses on helping businesses enhance their online presence through data-driven strategies. They cater to a wide range of industries, providing tailored solutions that align with the specific needs of their clients. The agency emphasizes the importance of analytics and measurable results, ensuring that marketing efforts are justified by data. Their commitment to continuous learning and adaptation to industry changes positions them as a knowledgeable player in the digital marketing space.
12. SEO Optimizers
- Website: seooptimizers.com
- Ownership type: Private
- Headquarters: Los Angeles, California, United States (USA)
- Employee distribution: United States (USA) 47%, Pakistan 32%, Bangladesh 10%, Other 10%
- Founded year: 2007
- Headcount: 1-10
- LinkedIn: seo-optimizers
SEO Optimizers is a digital marketing agency based in Los Angeles, California, founded in 2007. The company specializes in search engine optimization (SEO) and offers a range of services aimed at enhancing the online presence of small and medium-sized businesses. Their service portfolio includes SEO, social media marketing, website design, and paid advertising. With a focus on delivering measurable results, SEO Optimizers aims to increase organic traffic and improve keyword rankings for their clients. The agency has built a reputation for its personalized approach, providing free website SEO analyses and educational classes to empower business owners with SEO knowledge. Client reviews reflect a high level of satisfaction, emphasizing the company's commitment to helping businesses grow through effective digital marketing strategies.
13. Scalenut
- Website: scalenut.com
- Ownership type: Venture Capital
- Headquarters: Altadena, California, United States (USA)
- Employee distribution: India 88%, United States (USA) 12%
- Latest funding: Seed, $3.1M, August 2022
- Founded year: 2020
- Headcount: 11-50
- LinkedIn: scalenut
Scalenut is a digital marketing service company based in Altadena, California, founded in 2020. The company specializes in providing an AI-powered SEO and content marketing platform designed to assist users in planning, researching, creating, optimizing, and analyzing content. Scalenut's tools cater to a variety of users, including SEO strategists, content creators, and marketing agencies, all aiming to improve their online visibility and drive organic traffic. With a workforce primarily located in India, Scalenut has managed to attract significant attention in the industry, evidenced by their recent seed funding of $3.1 million in August 2022. This funding reflects the growing interest in AI-driven solutions for content marketing and SEO, positioning Scalenut as a relevant player in the digital marketing sector.
14. LA SEO Service
- Website: laseoservice.com
- Ownership type: Private
- Headquarters: Los Angeles, California, United States (USA)
- Employee distribution: United States (USA) 100%
- Founded year: 2009
- Headcount: 11-50
- LinkedIn: la-seo-service
LA SEO Service, based in Los Angeles, California, is a digital marketing agency that has been operational since 2009. With a team of approximately 23 employees, the company focuses on providing tailored SEO solutions to businesses looking to improve their online presence. Their service offerings include Ecommerce SEO, Lead Generation SEO, and App Store Optimization, among others. The agency prides itself on its personalized approach, ensuring that each client receives strategies that align with their specific goals. LA SEO Service has worked with a range of clients, from small businesses to larger enterprises, helping them navigate the complexities of search engine optimization. Their commitment to delivering measurable results is evident in their extensive experience with site migrations, content marketing, and link building. The company operates without reported funding, indicating a self-sustaining business model that has thrived in a competitive market.
15. Victorious
- Website: victorious.com
- Ownership type: Venture Capital
- Headquarters: San Francisco, California, United States (USA)
- Employee distribution: United States (USA) 92%, United Arab Emirates 4%, Pakistan 4%
- Latest funding: Series B, $25.0M, May 2016
- Founded year: 2013
- Headcount: 51-200
- LinkedIn: victorious-seo
Victorious is a digital marketing agency based in San Francisco, California, specializing in search engine optimization (SEO) services. Founded in 2013, the company has grown to employ between 51 and 200 people, with a significant portion of its workforce located in the United States. Victorious offers a comprehensive suite of SEO solutions, including keyword research, on-page and off-page optimization, technical SEO, and content creation. Their approach is tailored to help businesses improve their search rankings and drive organic traffic. Victorious has served over 600 brands across various industries, including SaaS, finance, and e-commerce, showcasing their adaptability and expertise. The company has also secured $25 million in funding, reflecting strong investor interest in their operations. Victorious has received numerous accolades for its work, including being named the 2023 SEO Agency of the Year, which highlights their commitment to delivering results for their clients.
16. Search Optimizers
- Website: searchoptimizers.com
- Ownership type: Private
- Headquarters: Irvine, California, United States (USA)
- Employee distribution: United States (USA) 100%
- Founded year: 1997
- Headcount: 11-50
- LinkedIn: search-optimizers-inc
Search Optimizers, based in Irvine, California, is a digital marketing agency that has been specializing in search engine optimization since its inception in 1997. With a team of 11 to 50 employees, the company has carved out a niche in the SEO market by offering tailored services that include SEO assessments, on-site and technical SEO, and Google My Business optimization. Their primary clientele consists of marketing professionals and businesses aiming to enhance their online visibility and lead generation capabilities. The firm operates through a partnership model, providing unbranded SEO assessments to help marketing professionals win business. This collaborative approach not only strengthens their client relationships but also positions them as a trusted resource in the SEO community. Search Optimizers prides itself on delivering high-value SEO at an economical price, making it accessible for small and medium-sized enterprises. Their commitment to ethical practices and a focus on long-term results further solidifies their standing in the industry.
17. Ardor SEO
- Website: ardorseo.com
- Ownership type: Private
- Headquarters: Davis, California, United States (USA)
- Employee distribution: Australia 33%, Philippines 26%, United States (USA) 14%, Other 28%
- Founded year: 2008
- Headcount: 51-200
- LinkedIn: ardor-seo
Ardor SEO, based in Davis, California, is a private digital marketing agency founded in 2008. With a team of approximately 58 employees, the company specializes in search engine optimization services aimed at helping businesses improve their online visibility and attract customers. Ardor SEO has carved out a niche in industries such as real estate and legal services, where they provide tailored strategies to enhance lead generation and sales. Their service offerings include guaranteed SEO, real estate SEO, and lawyer SEO, showcasing their focus on specific market needs. The company has not reported any funding, indicating a self-sustained growth model. Ardor SEO's commitment to client success is reflected in numerous positive testimonials, highlighting their ability to transform underperforming websites into effective customer acquisition tools.
18. Ignite Visibility
- Website: ignitevisibility.com
- Ownership type: Private Equity
- Headquarters: San Diego, California, United States (USA)
- Employee distribution: United States (USA) 91%, South Africa 5%, Other 3%
- Latest funding: February 2023
- Founded year: 2012
- Headcount: 201-500
- LinkedIn: ignite-visibility
Ignite Visibility is a digital marketing agency based in San Diego, California, founded in 2012 by John Lincoln and Krish Coughran. The company specializes in a wide array of services, with a strong emphasis on search engine optimization (SEO). Ignite Visibility aims to enhance the online presence of its clients through customized strategies that yield measurable results. Their service portfolio includes traditional SEO, email marketing, social media marketing, and more recently, Generative Engine Optimization, which focuses on optimizing content for AI-driven search engines. The firm has garnered numerous accolades, including recognition as the top SEO company in the USA by Clutch and multiple appearances on the Inc. 5000 list. With a workforce of over 250 employees, Ignite Visibility serves a variety of industries, showcasing their adaptability and expertise in digital marketing.
19. Local SEO Guide
- Website: lsgseo.com
- Ownership type: Private
- Headquarters: Pleasanton, California, United States (USA)
- Employee distribution: United States (USA) 78%, Bangladesh 22%
- Founded year: 2006
- Headcount: 11-50
- LinkedIn: local-seo-guide
Local SEO Guide, based in Pleasanton, California, is a private SEO consulting agency founded in 2006. With a team of 23 employees, they specialize in providing comprehensive SEO services tailored to businesses seeking to improve their online presence. Their offerings include SEO growth strategies, content strategy and production, technical SEO consulting, linkbuilding, and business intelligence. The agency has carved out a niche in local SEO, particularly for multi-location brands, small businesses, and B2B SaaS companies. They have worked with a variety of clients across different sectors, helping them navigate the complexities of search engine optimization. Notably, Local SEO Guide has been involved in significant projects that have resulted in substantial revenue increases for clients, showcasing their capability in delivering impactful SEO solutions. Their commitment to transparency and data-driven strategies further enhances their reputation in the industry.
20. Wiideman Consulting Group
- Website: wiideman.com
- Ownership type: Private
- Headquarters: La Mirada, California, United States (USA)
- Employee distribution: United States (USA) 87%, Mexico 13%
- Founded year: 1998
- Headcount: 11-50
- LinkedIn: wiideman
Wiideman Consulting Group, based in La Mirada, California, is a consulting agency that specializes in search engine optimization (SEO) and digital marketing services. Founded in 1998, the firm has built a reputation for providing tailored SEO consulting, audits, and training to businesses seeking to enhance their online visibility and drive organic traffic. The company is known for its hands-on approach, guiding clients from strategy development to execution across various aspects of SEO, including technical and contextual optimization. Wiideman Consulting Group also offers expert witness services, showcasing their deep understanding of the industry and its challenges. Their team, led by co-founder Steve Wiideman, is actively involved in training agencies and internal teams, sharing knowledge and best practices to foster self-reliance in SEO efforts. The firm has worked with a range of clients, helping them navigate the complexities of digital marketing and achieve measurable results.
21. Wood Box Digital
- Website: woodboxdigital.com
- Ownership type: Private
- Headquarters: Los Angeles, California, United States (USA)
- Employee distribution: India 82%, United States (USA) 18%
- Founded year: 2015
- Headcount: 11-50
- LinkedIn: woodboxdigitalofficial
Wood Box Digital is a digital marketing agency based in Los Angeles, California, with additional offices in India, Australia, and Singapore. Founded in 2015, the company focuses primarily on search engine optimization (SEO) services, catering to a wide array of clients from startups to large enterprises. Their offerings include local SEO, e-commerce SEO, and content writing, all aimed at enhancing online visibility and driving sales for their clients. The agency prides itself on its team of SEO experts who are trained in proven techniques and strategies. Wood Box Digital has built a reputation for delivering measurable results, with claims of significant increases in organic traffic and sales for their clients. They emphasize a data-driven approach and client satisfaction, which are critical in the competitive landscape of digital marketing. With a growing portfolio and a commitment to effective SEO practices, Wood Box Digital continues to make its mark in the industry.
Search Engine Optimization Insights: Key Companies in California
| Company | Headquarter | Size | Founded | Ownership |
|---|---|---|---|---|
| BrightEdge | Foster City, California, United States (USA) | 501-1000 | 2007 | Venture Capital |
| SEO Inc | Carlsbad, California, United States (USA) | 51-200 | 1997 | Private |
| Bruce Clay, Inc. | Simi Valley, California, United States (USA) | 11-50 | 1996 | Private |
| Noxster | Culver City, California, United States (USA) | 11-50 | 2010 | Private |
| Coalition Technologies | Los Angeles, California, United States (USA) | 201-500 | 2009 | Family Owned |
| Siege Media | San Diego, California, United States (USA) | 51-200 | 2012 | Private |
| Titan Growth | San Diego, California, United States (USA) | 11-50 | 2004 | Private |
| Hennessey Digital | Los Angeles, California, United States (USA) | 51-200 | 2015 | Private |
| ResultFirst | San Jose, California, United States (USA) | 51-200 | 2003 | Private |
| Submit Express | Glendale, California, United States (USA) | 11-50 | 1998 | Private |
| RSO Consulting | San Francisco, California, United States (USA) | 11-50 | 2006 | Private |
| SEO Optimizers | Los Angeles, California, United States (USA) | 1-10 | 2007 | Private |
| Scalenut | Altadena, California, United States (USA) | 11-50 | 2020 | Venture Capital |
| LA SEO Service | Los Angeles, California, United States (USA) | 11-50 | 2009 | Private |
| Victorious | San Francisco, California, United States (USA) | 51-200 | 2013 | Venture Capital |
| Search Optimizers | Irvine, California, United States (USA) | 11-50 | 1997 | Private |
| Ardor SEO | Davis, California, United States (USA) | 51-200 | 2008 | Private |
| Ignite Visibility | San Diego, California, United States (USA) | 201-500 | 2012 | Private Equity |
| Local SEO Guide | Pleasanton, California, United States (USA) | 11-50 | 2006 | Private |
| Wiideman Consulting Group | La Mirada, California, United States (USA) | 11-50 | 1998 | Private |
| Wood Box Digital | Los Angeles, California, United States (USA) | 11-50 | 2015 | Private |
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