Vellum
Latest round
- Series A
Last raised
- Jul 2025
Total raised
- $20M
Investors
- 6
About Vellum
, doing business as Vellum, operates as a developer of an artificial intelligence-based platform for building applications on large language models. Vellum provides a background tool for prompt engineering for cross-provider support, test cases and quantitative evaluation, and history tracking and collaboration. The company offers Vellum Search for training LLMs on clients’ computers to collect related data and use it as context in LLM calls. In addition, the company provides Vellum management for users to change the prompt through APIs, quantitative testing, version control, observability, and monitoring. As of 2023, the company’s client base includes PYQ, Left Field Labs, Uberduck, Vimcal, Feeling Good App, Bemlo, Encore, and many more.
Who invested in Vellum
6 investors across 2 rounds
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Questions about Vellum
Who invested in Vellum?
Vellum has 6 investors on record across 2 venture rounds. Sign up free to see every VC on the cap table and the rounds they joined.
How much funding has Vellum raised?
Vellum has raised 2 venture rounds. Sign up free to see how much each round raised and the total.
When did Vellum last raise money?
Vellum's most recent round on record is a Series A, in Jul 2025.
What does Vellum do?
, doing business as Vellum, operates as a developer of an artificial intelligence-based platform for building applications on large language models.
Where is Vellum headquartered?
Vellum is headquartered in New York, US.
Which VCs invest in companies like Vellum?
Among active investors with capital left to deploy, Andreessen Horowitz, Founders Fund, Accel and Thrive Capital back software companies at Vellum's stage. Their profiles are linked below.
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