Sublime Black
ClosedAutomating Cyber Security Incident Response Through Artificial…
Rockville, United States · Founded 2019 · $232.7M raised
- Headquarters
- Rockville, Maryland
- Employees
- 1–10
- Founded
- 2019
- Business Model
- B2B
- Website
- sublimeblack.com
- Total Funding
- $232.7M
- Last Round
- $150.0M Series COct 2025
- Rounds
- 5
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
About
Sublime Black was a cybersecurity startup focused on automating incident response using artificial intelligence. Founded in 2019 and part of Y Combinator's Winter 2019 batch, the company was headquartered in Rockville, Maryland. It was co-founded by Kembey Gbarayor and Charles Whitby and is currently listed as inactive.
Summary
Sublime Black is an Artificial Intelligence company based in Rockville, United States, founded in 2019. It has raised $232.7M in total across 5 rounds, most recently a $150.0M Series C round in Oct 2025. Investors include Index Ventures, Decibel Partners and IVP.
Funding History
Oct 2025
Sign up to see all 5 events
Funding: Seed through Series C. Amounts, valuations, and investors where available.
Investors
Similar Companies
Palantir Technologies builds data integration and analytics platforms (Gotham and Foundry) for go...
Cyera provides an AI-powered data security platform that helps security teams discover, control, ...
Real-time AI platform that detects early signs of high-impact events and emerging risks from publ...
OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artifi...
Your company? Embed this profile
Add the live badge to your site — it stays current as your funding data updates.
<a href="https://indexed.vc/companies/sublime-black"><img src="https://indexed.vc/api/badge/company/sublime-black" alt="Sublime Black on Indexed.vc" width="260" height="76" /></a>