Sales startup Letter AI raises $40 million in Series B funding led by Battery Ventures to enhance its AI-powered sales tools.
Amount Raised
$40 Million
Round Type
Series B
ChicagoSoftwareArtificial IntelligenceEnterprise SoftwareMachine LearningSaaSInvestors
Description
Letter AI has secured $40 million in Series B funding just four months after its previous $10.6 million Series A round. The funding, led by Battery Ventures, will support product development and global team expansion. Letter AI aims to unify sales tools into a single platform, enhancing customer engagement. The company serves customers in 30 countries, including Lenovo and Adobe.
Quick answer
Letter AI raised $40 Million in a Series B round, dated February 24, 2026. Investors: Y Combinator, Lightbank, Northwestern Mutual Future Ventures, Stage 2 Capital and Battery Ventures. Letter AI is based in Chicago, Illinois, United States.
- How much did Letter AI raise?
- Letter AI raised $40 Million in a Series B round on February 24, 2026.
- Who invested in Letter AI?
- Y Combinator, Lightbank, Northwestern Mutual Future Ventures, Stage 2 Capital and Battery Ventures are named as investors in this round.
- What does Letter AI do?
- Letter AI is a Chicago-based sales startup that provides AI tools to streamline sales processes.
- Where is Letter AI based and how big is it?
- Letter AI is based in Chicago, Illinois, United States. Fundz records about 60 employees.
- Who are the decision-makers at Letter AI?
- Fundz holds 2 contacts at Letter AI, including the Co-Founder & CTO. Names and contact details are shown to Fundz members.
Source: Fundz verified event record.
Who else raised in Enterprise Software and SaaS around the same time
Companies in the same sectors as Letter AI that raised within 45 days of this round, from Fundz verified event records.
Who to call at Letter AI, and when
A new round usually means Letter AI is about to hire and buy. The teams that reach out first get the meeting.
- An alert the day Letter AI raises, hires an executive or expands, scored against what you sell
- The decision-makers there, with verified emails
- Who you already know at Letter AI, from your own LinkedIn network
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Funding Insights
What this usually meansLetter AI raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.
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