Mimecast
Mimecast in each crawled group, and in the wider sample. Email Security.
| Group | Crawled | Running Mimecast | Share |
|---|---|---|---|
| Inc 5000 (2026) | 4,888 | 97 | 2.0% |
| Y Combinator companies | 5,388 | 18 | 0.3% |
| Fortune 500 | 472 | 23 | 4.9% |
| Unicorns | 1,000 | 51 | 5.1% |
| SaaS companies | 8,048 | 159 | 2.0% |
| Tranco top 10,000 | 1,572 | 31 | 2.0% |
| Wider sample | 8,291 | n/a | n/a |
Group rows come from rendered homepage crawls; the wider sample is a plain fetch, so it undercounts tools a tag manager injects after the page loads. <5 means fewer than 5 crawled domains in that group. Method · Email Security across all groups · Mimecast email gateway, from its MX host.
Cite this
Installmap, Mimecast adoption, crawl of 2026-09-03, https://installmap.com/tools/mimecast.