Sublime Security
PrivateLast Round
Series C
Oct 28, 2025
Est. Valuation
$1B
Total Funding Raised
$239.8M
Momentum
Top 50%
of companies Caplight tracks
Company Overview
Sublime Security operates in Cybersecurity and is based in Washington D.C.. Its latest recorded funding round was a Series C round in October 2025.
Sublime Security is a cybersecurity company that provides an AI-powered, programmable cloud email security platform designed to detect and block attacks like Business Email Compromise (BEC), malware, and phishing.
Sector
Cybersecurity
Verticals
Email Security, Application Security, Threat Intelligence
Business Model
B2B
Customer Profile
Subscription SaaS, Usage-Based SaaS
AI Layer
Application
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Sublime Security Comparables
Compare Sublime Security with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Abnormal AI | 86% | |
| Ironscales | 84% | |
| Material Security | 78% |
For institutional investors. Book with your work email.
Sublime Security Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series C | Oct 28, 2025 | ||||
| Series B | Dec 12, 2024 | ||||
| Series A | Apr 24, 2024 | ||||
| Seed | Feb 21, 2023 |
For institutional investors. Book with your work email.
Key People
Founding team and executive leadership
For institutional investors. Book with your work email.
Sublime Security Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Decibel | Series A, Series B, Seed |
| Slow Ventures | Series A, Seed, Series B, Series C |
| Citi Ventures | Series B, Series C |
| Georgian | Series C |
| 01 Advisors | Series C |
| 01A | Series C |
| Institutional Venture Partners (IVP) | Series C, Series B |
For institutional investors. Book with your work email.
Market signals
Structured signals derived from secondary market and firmographic data.
- Jul 20, 2026
Added Octolit, a cybersecurity startup, as a customer.
- Apr 13, 2026
Added US Signal Company, L.L.C. as a customer.
For institutional investors. Book with your work email.
Recent news
Latest coverage and updates
- launchesOct 1, 2026
Sublime Security, Inc. announced the general availability of Sublime Email Data Loss Prevention, which uses message context and agentic AI to prevent sensitive data loss over email.
- attends_eventAug 31, 2026
Sublime Security, Inc. attends Fal.Con 2026 in Nevada on Aug 31st '26 and announces an integration that brings its email security signals into CrowdStrike Falcon Next-Gen SIEM.
- integrates_withAug 31, 2026
Sublime Security, Inc. announces an integration that sends its email security signals into CrowdStrike Inc.'s Falcon Next-Gen SIEM in Nevada on Aug 31st '26, enabling security teams to correlate email security data with endpoint, identity, cloud, threat intelligence, and other security telemetry during investigations.
For institutional investors. Book with your work email.
Sublime Security 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.
Book a demoFor institutional investors. Book with your work email.
Frequently Asked Questions
Common questions about Sublime Security's valuation, stock price, and market status.
Is Sublime Security a public or private company?
Sublime Security is a private company.
What is the current stock price of Sublime Security?
Sublime Security is a private company, so its shares have no public market price. Caplight tracks Sublime Security's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Sublime Security worth (valuation)?
Sublime Security's valuation is estimated at $1.0B based on funding round data.
Can I buy Sublime Security stock?
Sublime Security shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Sublime Security's last funding round?
Sublime Security's most recent funding round was Series C on October 28, 2025.
Who are the main investors in Sublime Security?
Key investors in Sublime Security include Decibel, Georgian, Institutional Venture Partners (IVP), Index Ventures.
Will Sublime Security IPO soon?
No public IPO plans have been announced for Sublime Security.
How can I track Sublime Security secondary market activity?
Caplight tracks bids, offers, and trades in Sublime Security's shares on secondary markets.