San Diego has a vibrant and growing group of tech firms that specialize in all types of SEO and paid search marketing.

There are dozens of top firms in all parts of Southern California with many calling sunny San Diego home. We have done our research and whittled the list down to the top 10 in the immediate San Diego area.

These are the very best firms as chosen in November 2018.

SEO Companies San Diego


Ignite VisibilityReputation Score 9.5

Ignite Visibility

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Ignite Visibility is led by John Lincoln who is an expert in content creation and all things SEO. Ignite has a strong eye on the San Diego market but has clients from around the world and is heavily involved in conferences and thought leadership.

Thrive Internet Marketing Agency – Reputation Score 9.5

Thrive Internet Marketing Agency

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Thrive Internet Marketing Agency has been in business since 2004 with an initial focus on web design. Thrive has since developed strong SEO, PPC, and social media marketing expertise with a core focus on relationships and results. Thrive is open for business in San Diego.

3 Q DigitalReputation Score 9

3 Q Digital
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3 Q Digital focuses on helping market disruptors grow and take on huge challengers. Digital marketing can level the playing field for new companies with great ideas. 3 Q Digital fits this niche perfectly.

SEO Inc. – Reputation Score 8.5

SEO Inc.

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SEO Inc. is led by a group of industry veterans that have worked for a variety of well known agencies in their collective past. SEO Inc. provides deep knowledge and an emphasis on client relationships.

Fractl – Reputation Score 8.5

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Fractl is focused on viral growth, that can come from SEO, PPC or social campaigns. They also offer many other digital marketing and digital PR services. They have a national team and serve a national set of clients.

BusinessOnline – Reputation Score 8.5


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BusinessOnline is an established national agency that offers digital marketing services for large enterprise brands and medium-sized firms. It is headquartered in San Diego with multiple national offices.

NextLeftReputation Score 8.5

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NextLeft focuses on content marketing and how that relates to SEO and other digital marketing services. The best content will rank naturally and NextLeft has the content team to meet SEO goals with world class writing.

Mentus – Reputation Score 8

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Mentus offers traditional advertising services as well as digital advertising and SEO. They are able to give clients a full marketing solution so they don’t need to find multiple partners.

Doctor Multimedia – Reputation Score 7.5

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Doctor Multimedia is completely focused on the medical industry and doctors offices. They build websites and help market doctors through SEO. If you are in the medical industry and need SEO, Doctor Multimedia is a good fit.

Realize Internet Marketing – Reputation Score 7

Realize Internet Marketing

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Realize Internet Marketing is known for email marketing services but also offers strong SEO and web design services. This boutique agency is based in San Diego but does work for clients around the nation.