Deployment automation and feature flag management
48 companies on usedby use at least one of the 2 tools in this category with a public customer. Harness leads with 41 companies. Then come Traversal (7).Latest check Oct 7, 2026: 48 of 48 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.
48
companies on usedby use a tool of this category
Companies with a public line for each tool. Job-post signals count and are drawn apart in the proof bar.
| # | Tool | Customers | Proof |
|---|---|---|---|
| 1 |  Harness | 41 | |
| 2 |  Traversal | 7 |
Harness41 customersHarness is used by 41 companies on usedby, 39 confirmed by a case study, a named quote or a press release. Named customers include ADP, Experian, and Twilio. Who uses Harness, Harness vs Traversal
Customer page: harness.io. Latest check of 41 of 41 lines: Oct 7, 2026.
Traversal7 customersTraversal is used by 7 companies on usedby, 6 confirmed by a case study, a named quote or a press release. Named customers include Pepsico, DigitalOcean, and ClikIT. Who uses Traversal, Harness vs Traversal
Customer page: traversal.com. Latest check of 7 of 7 lines: Oct 6, 2026.
Companies first listed by a tool of this category in the last 90 days.
Side-by-side pages with the companies behind each tool.
Answers drawn from usedby data.
Harness, used by 41 of the 48 companies on usedby in this category. Then come Traversal (7). Who uses Harness.
Harness: 41 companies on usedby, against 7 for Traversal.
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. Job-post signals count in the totals and are shown apart. usedby lists a company when a public page shows it, so these counts describe the companies on usedby, not the whole market.