Ranked · 5 of 6 assessed
Ordered by Agency List ScoreBuilds websites and applications with intelligent design and development
Web design, app development, and SEO for legal, healthcare, and franchise brands
Custom ERP, ecommerce, and cloud software for manufacturers, distributors, and logistics firms
Web development and digital marketing for St. Louis businesses
Develops web applications and integrates systems for efficiency
Also in St Louis · 2 not ranked here
1 have not yet been assessed on the Agency List Score. Alphabetical.About this ranking
What this page ranks
This page ranks 5 of the 6 assessed backend development agencies in St Louis, Missouri — the ones carrying a published score — out of 7 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, Backend Development in St Louis, Missouri. 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 6, so no award can be issued here.
The 1 backend development agency not yet assessed is listed on this page but not ranked.
One more was assessed and no published evidence of its work was found, so no score is shown for it.
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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Backend Development nearby
Questions
- How many backend development agencies are in St Louis, Missouri?
- 7 are listed on Agency List in St Louis, Missouri. 6 of them have been assessed on the Agency List Score as of October 2026, and 5 of those carry a published score.
- Which backend development agency in St Louis, Missouri is ranked highest?
- Gianthatworks, with an Agency List Score of 96.7, ranks #1 of 6 assessed agencies in Backend Development in St Louis, Missouri.
- Why are 2 backend development agencies listed here but not ranked?
- 1 of the 7 listed have not yet been assessed on the Agency List Score. One more was assessed and no published evidence of its work was found, so no score is shown for it. 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 Backend Development in St Louis, Missouri cohort of 6 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.