Top SEO Companies Charleston, SC

Many Charleston businesses both small and large prefer hiring SEO services based locally in Charleston, South Carolina. As an SEO professional with over 15 years experience in SEO, I wanted to provide a list of the top SEO companies in Charleston, SC. I reviewed the services of over 30 SEO companies in Charleston. From there I have narrowed down to the below top 9 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.

9Agencies reviewed

Written by Andrew Eagar Updated September 21, 2026

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1. Lazarus Design Team

Lazarus Charleston is an SEO agency based in Charleston, SC. They offer services such as website design, social media marketing, and pay-per-click advertising. Their SEO offering includes keyword research, on-page optimization, and local SEO strategies to help businesses improve their online visibility and rankings.

Minimum budget: $10,000+
Hourly rate: $150/hr
Team size: 199
Based in: Charleston, SC

“Incredibly fast and easy to work with, highly recommend their services.”

Why we chose them

Lazarus Design Team earned its esteemed position among the best SEO firms in Charleston, SC, primarily based on 8 customer reviews on Google averaging a 5.0 rating. What stood out to us as we reviewed each testimonial was that many clients personally recognized team members by name. This personal touch underscores the trust and excellence that define Lazarus Design Team. Clients consistently praised their professionalism, responsiveness and working experience, further solidifying their outstanding reputation.

Visit Lazarus Design Team

2. Brandon

Minimum budget: $5,000+
Hourly rate: $150/hr
Team size: 183
Based in: Charleston, SC

“We have enjoyed working with them and wouldn’t be where we are without them.”

Why we chose them

Our team picked Brandon for our Charleston, SC list, for their outstanding track record in driving successful SEO collaborations, like their work with Ohio University. Their strategic approach helped the university’s Sociology page rise to the top of search rankings for key terms, demonstrating the power of their keyword research and on-page optimization. With 13+ years of industry experience and glowing Google reviews, Infinity is a top choice for businesses looking to enhance web visibility and achieve exceptional results.

Visit Brandon

3. Mr. Marketing

Mr. Marketing is an SEO agency near Charleston, SC that offers marketing services such as website design, social media management, and email marketing. They specialize in search engine optimization, including keyword research, on-page optimization, and link building to help businesses improve their online visibility and drive more traffic to their websites.

Minimum budget: ---
Hourly rate: ---
Team size: 30
Based in: Charleston, SC

“Highly recommend Mr. Marketing SEO. Experts in marketing space and the team is great to work with.”

Why we chose them

Mr. Marketing secured a prestigious place on our list of top SEO agencies primarily based on 101 Google reviews, each with an impeccable 5.0 average rating. Upon reviewing each customer feedback, we discovered consistent expressions of satisfaction regarding the results and the quality of work achieved through collaboration with Mr. Marketing. Notably, one client highlighted an increase in sales exceeding $200,000 in just three months.

Visit Mr. Marketing

4. Galileo Tech Media

Galileo Tech Media is an SEO agency based in Charleston, SC. They offer services such as content marketing, keyword research, and local SEO. They specialize in creating SEO strategies tailored to each client's unique needs and goals, driving organic traffic and increasing online visibility for their clients.

Minimum budget: $10,000+
Hourly rate: $100/hr
Team size: 8
Based in: Charleston, SC
Rating: 4.9 / 5

“They are thorough, responsive, and always produce high quality work. Highly recommend them.”

Why we chose them

Adding Galileo Tech Media to our list is backed by their in-depth case studies. The remarkable SEO outcomes highlighted in these case studies left a lasting impression, including a 95% surge in organic search traffic within a year and a 174.3% increase in overall website traffic. Additionally, they achieved a notable 79% increase in traffic to the their blog in just one month, and a 188% uptick in Google rankings, securing the top three spots for 49 keywords, all accomplished through Galileo Tech Media's holistic content and SEO strategy.

Visit Galileo Tech Media

5. ClickGiant

ClickGiant is an SEO agency based in Charleston, SC, offering a range of digital marketing services including SEO, PPC, and content marketing. Their SEO services focus on technical optimization, keyword research, and content creation, aimed at improving website visibility and driving organic traffic.

Minimum budget: $1,000+
Hourly rate: $100/hr
Team size: 4
Based in: Charleston, SC
Rating: 4.8 / 5

“Very pleased with their services. Highly recommend them for your digital marketing needs.”

Why we chose them

ClickGiant was included in our list primarily due to their collection of impactful case studies featured on their website. After thorough review, one standout case highlights their achievement of ranking second for a primary keyword and securing top-three position for multiple keywords. Furthermore, their new website design and effective SEO strategy resulted in a 155% increase in traffic and a 310 % rise in online leads. These outcomes demonstrate the ClickGiant's capability and dedication to delivering impressive results for clients.

Visit ClickGiant

6. Custom Digital Solutions LLC

Custom Digital Solutions is an SEO agency based in Charleston, SC, offering services such as web design, digital marketing, and social media management. Their SEO services include on-page and off-page optimization, keyword research, and content creation to improve search engine rankings and drive organic traffic to websites.

Minimum budget: ---
Hourly rate: ---
Team size: 4
Based in: Charleston, SC
Rating: 4.2 / 5

“True trustworthy partner always ready to help. Highly recommended !!”

Why we chose them

Custom Digital Solutions, LLC made our list of top SEO agencies in Charleston,SC for their ability to transform businesses through thoughtful blog content and fair pricing. We noticed a client that saw a major shift in their digital presence after CDS revamped their website with fresh blog posts and expertly managed their digital advertising and Google Ads. Known for clear communication and no billing surprises, Custom Digital Solutions consistently delivers on promises and provides excellent value for businesses.

Visit Custom Digital Solutions LLC

7. Atlantic Marketing Company

Atlantic Digital Marketing Company is an SEO agency based in Charleston, SC. They offer services such as digital marketing, web design, and social media management. With a focus on local and organic SEO, they specialize in keyword research, content optimization, and link building to help clients improve their online visibility and rankings.

Minimum budget: $1,000+
Hourly rate: $50/hr
Team size: 3
Based in: Charleston, SC
Rating: 4.8 / 5

“Fantastic SEO agency. We are on the top ranking results for criminal appeals lawyers across US.”

Why we chose them

Atlantic Marketing Company was added to our list based on case studies that showcase impressive results. Among all, one noteworthy case study highlights a remarkable 17.9% increase in organic website visits, a 21% boost in new users, and a 30% rise in quality website visits. Additionally, they achieved a 14% improvement in bounce rate and a 13% uptick in pages per session through combined efforts to enhance website speed and SEO. This case study serves as a testament to Atlantic Marketing Company's prowess in driving business growth online.

Visit Atlantic Marketing Company

8. Ranking Carolina

Ranking Carolina offers SEO services focusing on data-driven strategies, including Local Search, on-site optimization, and content creation. They also provide web design, user experience enhancement, and paid search services. Their SEO approach is personalized, using in-depth keyword research and trend analysis to improve organic visibility and drive targeted traffic growth.

Minimum budget: $5,000+
Hourly rate: $100/hr
Team size: 2
Based in: Charleston, SC
Rating: 4.5 / 5

“If you're considering SEO for your business, Ranking Carolina is your one stop shop.”

Why we chose them

We recognize Ranking Carolina as one of the best SEO companies in Charleston, SC, primarily based on 59 Google reviews averaging a 4.9 rating. Many clients highlighted their long-term collaboration with Ranking Carolina for SEO services and praised their SEO expertise and deep knowledge. Furthermore, they lauded Ranking Carolina's ability to achieve top positions in Google search results for their websites.

Visit Ranking Carolina

9. Complete Web

Complete Web Charleston offers SEO services with a focus on increasing brand visibility, using transparent and goal-oriented strategies such as content optimization and technical SEO. They also provide web design, development, and eCommerce solutions, emphasizing clean code, performance, and seamless user experience to drive online success for businesses across various digital platforms.

Minimum budget: $10,000+
Hourly rate: $149/hr
Team size: 2
Based in: Charleston, SC
Rating: 4.3 / 5

“They have also assisted us with Search Engine Optimization and the results have been great.”

Why we chose them

We picked Complete Web for our list of SEO agencies in Charleston, SC, because of their ability to truly transform online businesses. After reading client feedback, we saw how they’ve helped Charleston Coffee Roasters streamline their WooCommerce platform, making it more user-friendly and efficient. We came across several reviews praising how Complete Web's expertise turned their website into a powerful tool for connecting with customers and driving growth. If you want a team that’s both skilled and genuinely invested in your success, we highly recommend Complete Web.

Visit Complete Web

How we ranked Charleston SEO companies

We reviewed dozens of agencies serving Charleston, 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 Charleston. 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 has worked in SEO since 2008. He has been Director of SEO at four agencies, built SEO departments from the ground up and led teams of more than 20 SEOs, on brands including Twitter, Amazon, S&P Global, PGA Tour, Allstate and Seagate. He has contributed to Moz and Clutch, and today runs The Fractional SEO in Virginia.

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