Companies using LangChain: 66 startups hiring for it (Oct 2026)
66 of 412 venture-backed and growth companies mention LangChain in at least one currently open job post. Below are the 25 with the most roles mentioning it, each with a public job post as evidence. Companies that hire for a tool are investing in that stack now, which makes this list useful for account targeting, competitive displacement and partner sourcing.
Get the full list: all 412 companies × 93 tools, with role counts and the public job post that evidences each mention (CSV). One-time snapshot, $49 · Weekly refresh, $99/mo (new roles every Monday; add up to 50 companies and 10 tools of your choice). 7-day refund.
41 more companies mention LangChain; they are in the full CSV.
Get the full list: all 412 companies × 93 tools, with role counts and the public job post that evidences each mention (CSV). One-time snapshot, $49 · Weekly refresh, $99/mo (new roles every Monday; add up to 50 companies and 10 tools of your choice). 7-day refund.