SEO Agencies in South Carolina

6 SEO agencies are listed in South Carolina, United States. 5 have been assessed on the Agency List Score as of September 2026; the highest-ranked is PalmettoSoft at 95.3.

Ranked · 5 assessed

Ordered by Agency List Score
#1 of 5 assessed
PalmettoSoft
95

SEO and web development for South Carolina businesses

Content SEOEcommerce SEOLocal SEO
#2 of 5 assessed
Rank The Coast
91

Charleston SEO and digital marketing for measurable growth

Content SEOEcommerce SEOInternational SEO
#3 of 5 assessed
Mr. Marketing SEO
80
Verified

Local SEO and lead generation with patented technology

Content SEOEcommerce SEOInternational SEO
#4 of 5 assessed
Pi Pie Studios
73

Expert WordPress web design and local SEO services

Local SEO
#5 of 5 assessed
Greenville SEO
66

Expert SEO and Pay Per Click for Fast Results

Content SEOEcommerce SEOInternational SEO

Also in South Carolina · 1 not yet assessed

Listed agencies queued for assessment. Alphabetical.

About this ranking

What this page ranks

This page ranks the 5 SEO agencies in South Carolina, United States that have been assessed on the Agency List Score, out of 6 listed.

The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.

Cohorts and awards

Agencies are compared within a cohort — here, SEO in South Carolina, United States. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 5, so no award can be issued here.

The 1 SEO agency not yet assessed is listed on this page but not ranked.

Read the full methodology

Paid placement

Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.

Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.

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Questions

How many SEO agencies are in South Carolina, United States?
6 are listed on Agency List in South Carolina, United States. 5 of them have been assessed on the Agency List Score as of September 2026.
Which SEO agency in South Carolina, United States is ranked highest?
PalmettoSoft, with an Agency List Score of 95.3, ranks #1 of 5 assessed agencies in SEO in South Carolina, United States.
Why are 1 SEO agencies listed here but not ranked?
1 of the 6 listed have not yet been assessed on the Agency List Score. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
How is the ranking determined?
By Agency List Score, within the SEO in South Carolina, United States cohort of 5 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.