Vellum
PrivateLast Round
Series A
Jul 10, 2025
Total Funding Raised
$25M
Company Overview
Vellum operates in AI, Data & Cloud Infrastructure and is based in San Francisco, California. Its latest recorded funding round was a Series A round in July 2025.
Vellum is a software development company that provides an LLMOps platform for building, evaluating, deploying, and monitoring production-grade AI applications.
Sector
AI, Data & Cloud Infrastructure
Verticals
ML Platforms, NLP & Conversational AI, Workflow Automation
Business Model
B2B
Customer Profile
Subscription SaaS, Usage-Based SaaS
AI Layer
Infrastructure
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Vellum Comparables
Compare Vellum with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| HoneyHive | 90% | |
| Klu.ai | 89% | |
| Braintrust | 89% |
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Vellum Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | Jul 10, 2025 | ||||
| Seed | Jul 13, 2023 |
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Key People
Founding team and executive leadership
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Vellum Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Pioneer Fund | Series A, Seed |
| Eastlink Capital | Series A, Seed |
| Y Combinator | Series A, Seed |
| Leaders Fund | Series A |
| Leaders Fund | Series A |
| Rebel Fund | Series A, Seed |
| Alloy Fund | Seed |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Oct 25, 2025
Added Relyhealth, a Health Tech startup, as a customer.
- Sep 29, 2025
Added Odyseek Inc., a startup in the EdTech sector.
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Vellum Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Frequently Asked Questions
Common questions about Vellum's valuation, stock price, and market status.
Is Vellum a public or private company?
Vellum is a private company.
What is the current stock price of Vellum?
Vellum is a private company, so its shares have no public market price. Caplight tracks Vellum's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Vellum worth (valuation)?
Valuation information for Vellum is not publicly available.
Can I buy Vellum stock?
Vellum shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Vellum's last funding round?
Vellum's most recent funding round was Series A on July 10, 2025.
Who are the main investors in Vellum?
Key investors in Vellum include Leaders Fund, Leaders Fund.
Will Vellum IPO soon?
No public IPO plans have been announced for Vellum.
How can I track Vellum secondary market activity?
Caplight tracks bids, offers, and trades in Vellum's shares on secondary markets.