Partner, affiliate and referral program platforms with verified AI partner matching or lead capture.
61
companies on usedby use a tool of this category
61 companies on usedby use the one tool in this category with a public customer. PartnerStack leads with 61 companies.Latest check Nov 13, 2026: 61 of 61 public lines checked. Counts are of companies on usedby, not of the whole market: we list a company when a public page shows its AI tools.
Companies with a public line for each tool. Job-post signals count and are drawn apart in the proof bar.
| # | Tool | Customers | Proof |
|---|---|---|---|
| 1 |  PartnerStack | 61 |
PartnerStackPartnerStack is used by 61 companies on usedby, 31 confirmed by a case study, a named quote or a press release. Customers include Apollo.io, ClickUp, and Freshworks. Who uses PartnerStack
Latest check of 61 of 61 lines: Nov 13, 2026.
Companies first listed by a tool of this category in the last 90 days.
Answers drawn from usedby data.
PartnerStack, used by 61 of the 61 companies on usedby in this category. Who uses PartnerStack.
By the number of companies with a public line for each tool, read from dated captures of vendor customer pages, case studies, press releases and job posts. Every proof level counts in the totals and the ranking, job-post signals included (the weakest proof, shown apart in the proof bar); ties go to the stronger proofs. usedby lists a company when a public page shows it, so these counts describe the companies on usedby, not the whole market.