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The best Claude agencies in 2026
2 RATED AGENCIES · UPDATED 21 JULY 2026
llms.txtThe best Claude agencies in 2026 by Hack Score: On Onsite (18/100), INFLOW DATA (13/100). Updated 21 july 2026 · 2 ranked agencies.
Looking for an agency that masters Claude? This ranking compares agencies that declare Claude in their stack and prove it with projects. Public Hack Score, reviews verified with collaboration proof, real budgets. Updated nightly.
FILTERSSort: Hack Score ▾
SemrushAhrefsClaude
View profile#2
Claude CodeMistralSupabase
View profileCite this ranking · Hackgency, "The best Claude agencies in 2026: ranking and reviews", 21 july 2026. https://hackgency.com/agencies/tool/claude
Frequently asked questions
What is the best Claude agency in 2026?
On Onsite leads the ranking with a Hack Score of 18/100.
How many Claude agencies are ranked?
2 agencies are scored and re-ranked nightly on the Hack Score: verified reviews, completeness, portfolio and badges.
What budget should you plan for a Claude agency?
Ranked agencies start at 400 €. Every profile shows its minimum budget and day rate.
How to choose your Claude agency
A good agency documents its deliverables, plans for error recovery and trains your team on maintenance. Beware of quotes without a prior audit: a critical project deserves a scoping phase.
Compare minimum budgets, the number of documented projects and the review sub-ratings (quality, deadlines, communication, budget). A shortlist of three agencies is enough to decide.
How this ranking is built
The rank relies on the Hack Score: reviews verified with proof of collaboration (40%), internal completeness and responsiveness score (25%), documented portfolio (25%), badges and certifications (10%).
No agency can buy its position. The full methodology is public.