Letter AI
Latest round
- Series B
Last raised
- Feb 2026
Total raised
- $53M
Investors
- 10
About Letter AI
Based in Illinois, US, and founded in 2023, Tractatus AI, Inc. doing business as Letter AI provides artificial intelligence-based solutions for revenue teams helping them with training, coaching, and many others. In February 2026, Letter AI, Inc. AI-powered services like training and onboarding, which enable the quick generation of training materials and certification courses, are part of the company's product line. Users may also rehearse sales proposals using realistic scenarios and get immediate feedback that aligns with their company's sales philosophy using AI-powered coaching. Additionally, the platform has a tool called revenue co-pilot and content management which provides personalized solutions according to the company and its products.
Who invested in Letter AI
10 investors across 3 rounds
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Questions about Letter AI
Who invested in Letter AI?
Letter AI has 10 investors on record across 3 venture rounds. Sign up free to see every VC on the cap table and the rounds they joined.
How much funding has Letter AI raised?
Letter AI has raised 3 venture rounds. Sign up free to see how much each round raised and the total.
When did Letter AI last raise money?
Letter AI's most recent round on record is a Series B, in Feb 2026.
What does Letter AI do?
Based in Illinois, US, and founded in 2023, Tractatus AI, Inc.
Where is Letter AI headquartered?
Letter AI is headquartered in Chicago, US.
Which VCs invest in companies like Letter AI?
Among active investors with capital left to deploy, Andreessen Horowitz, Founders Fund, Accel and Thrive Capital back software companies at Letter AI's stage. Their profiles are linked below.
VCs backing software startups at Series B
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