Top SEO Companies Fairfax, VA

Many Fairfax businesses both small and large prefer hiring SEO services based locally in Fairfax, VA. As an SEO professional with over 15 years experience in SEO, I wanted to provide a list of the top SEO companies in Fairfax, Virginia. I reviewed the services of over 15 SEO companies in Fairfax. From there I have narrowed down to the below top 5 SEO companies. SEO companies in this list were vetted based on a defined methodology with criteria we felt businesses care most about including but not limited to, a track record of client performance, the expertise of staff, and customer satisfaction. We receive no compensation from agencies in this list. If an SEO company is listed here, it is by their merit alone.

5Agencies reviewed

Written by Andrew Eagar Updated September 21, 2026

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1. KME.digital

KME Digital is an SEO agency based in Fairfax, VA. They offer a range of services including SEO, web design, content creation, and social media marketing. With a focus on driving organic search traffic, they provide keyword research, on-page optimization, backlink building, and technical SEO solutions to help businesses improve their online visibility and rankings.

Minimum budget: $1,000
Hourly rate: $100/hr
Team size: 27
Based in: Fairfax, VA
Rating: 5.0 / 5

“For any company, large or small, we fully recommend KME without hesitation.”

Why we chose them

KME Digital was added to our list after we reviewed each of their 7 SEO case studies. One caught our attention as the client in the case study saw a 236% incrrease in users. Another saw a 105% increase in leads. These results are backed up by reading fifty-one reviews where clients mention their performance and have KME Digital to thank.

Visit KME.digital

2. Bleevit

Bleevit is an SEO agency based in Fairfax, VA, offering a range of services to help businesses improve their online presence. Their comprehensive SEO offerings include on-page optimization, keyword research, link building, and content creation. They specialize in helping businesses rank higher in search engine results and drive targeted organic traffic to their websites.

Minimum budget: $10,000
Hourly rate: $50/hr
Team size: 4
Based in: Fairfax, VA
Rating: 4.8 / 5

“They came up with a game plan that we embraced at a budget that we could handle.”

Why we chose them

Bleevit definitely has customers bleeving in their services (see what I did there). One customer commented that they saw a 900% increase in traffic after Bleevit helped them build pages and a new blog. Their other reviews read the same way. Beyond performance, may customer were impressed with the team and called out their excellent customer service.

Visit Bleevit

3. 321 Web Marketing

321 Web Marketing is an SEO agency based in Fairfax, VA. They offer a range of services, including SEO, website design, social media marketing, and content creation. Their expertise lies in optimizing websites for search engines, improving rankings, and driving organic traffic through strategies like on-page optimization, keyword research, and link building.

Minimum budget: $10,000
Hourly rate: $100/hr
Team size: 21
Based in: Fairfax, VA
Rating: 4.8 / 5

“[Their consultant] and his team are the sole reason for my business being as successful as it is”

Why we chose them

321 Web Marketing was included in our list primarily due to their twenty 5-star reviews on Google. we read through each review and found that many customers have been working with 321 Web Marketing for years. This speak volumes to their customer experience. Other reivews mentioned how happy they were with the stellar results.

Visit 321 Web Marketing

4. NOVA Advertising

Nova Advertising is an SEO agency based in Fairfax, VA. They offer a range of services including web design, social media marketing, pay-per-click advertising, and content creation. Their SEO offering focuses on effective keyword research, on-page optimization, high-quality link building, and local SEO to help businesses improve their online visibility and rank higher in search engine results.

Minimum budget: $5,000
Hourly rate: $100/hr
Team size: 13
Based in: Fairfax, VA
Rating: 4.5 / 5

“The level of service and personal attention we have received has been excellent.”

Why we chose them

NOVA Advertising has over 40 reviews on Google and as we read through all of them we foudn many clients leverage Nova Advertising for multiple services including SEO, digital marketing and web design/development. This wholistic approach seems to keep their customers happy. Client talk about having an excelent experience and tounting the skills of the team.

Visit NOVA Advertising

5. Marketing Nice Guys

Marketing Nice Guys is a SEO agency based in Fairfax, VA. They provide a range of services, including SEO analysis, keyword research, content creation, and website optimization. Their SEO offering focuses on improving search engine rankings, increasing website traffic, and driving conversions.

Minimum budget: $1,000
Hourly rate: $100/hr
Team size: 3
Based in: Fairfax, VA
Rating: 3.5 / 5

“Guidance was exremely helpful. I highly recommend them”

Why we chose them

Marketing Nice Gues as added to our list after reading through their Google reviews. I was impressed with how they leverage a full-funnel approach to their marketing and how customers talkeda bout their performance in reviews. Also found in their reviews is how responsive and nimble the team at marketing Nice Guys are.

Visit Marketing Nice Guys

How we ranked Fairfax SEO companies

We reviewed dozens of agencies serving Fairfax, weighing more than fifty separate points of information for each. These are the categories that decided the order.

Client performance: Case studies and customer reviews for every agency, read for evidence of actual outcomes (keyword movement, traffic growth, lead volume) rather than claims about process.
Employee experience: The LinkedIn profile of every SEO employee at each firm: years of SEO-specific experience, how deep it goes, and whether it leans strategic, implementation, or account management. A large team of generalists is a different proposition from a small team of specialists.
Customer satisfaction: Reviews on Google and third-party platforms, weighted by what clients actually say rather than the star average: what they valued, how they were treated, and how long they stayed. Engagement length says more than a rating does.
Location: Every firm listed here is based in or near Fairfax. An agency that merely sells into this market is not the same as one that works in it.

No agency paid to appear on this page, and none can. We are not on our own lists either. The Fractional SEO is not an agency, so including ourselves would be dishonest in a different direction.

About the author

Andrew Eagar

Founder, The Fractional SEO

Andrew Eagar is an SEO expert with over 15 years of SEO experience. He has been the Director of SEO at 4 different agencies. He has built SEO departments from the ground up, has lead SEO teams of over 25 people, and has contributed SEO thought leadership to websites like Moz, Clutch, and many others. Andrew’s experience leading SEO agencies at 4 different companies makes him uniquely qualified to assess the value and quality of each. He can look beyond agency marketing material and assess the substance of their value and the quality of their work. Andrew is the Founder and CEO of The Fractional SEO, an agency alternative. The Fractional SEO works to bridge the gap between agency and in-house.

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