Funding
Series B · AI

Letter AI raises $40m Series B for revenue enablement

Battery Ventures, Y Combinator and other investors participated in the financing.

Updated Oct 16, 2026By RoundOS Funding desk

Letter AI raised $40 million in Series B financing on February 24. Participants included Battery Ventures, Y Combinator, Lightbank, Northwestern Mutual Future Ventures and Stage 2 Capital. The company develops AI-based revenue-enablement software for go-to-market teams.

Funding history

Series B · This round$40M

Sources

  1. Letter AIprojectstartups.com
  2. prnewswire.com

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