Funding record · 2026 / 04

Rilian raises $17.5M Seed for security operations
Announced 23 April 2026 · Recorded 8 September 2026 · Last verified 8 September 2026
Rilian, a security operations company based in McLean, United States, raised $17.5M in a Seed announced on 23 April 2026, led by 8VC, First In and Tamarack Global with 4 others. Its disclosed equity funding is now $23M across 2 rounds.
- Amount
- $17.5M
- Round
- Seed
- Announced
- 23 April 2026
- Lead investors
- 8VC, First In, Tamarack Global, Perot Jain, 8090 Industries, Protego Ventures, Liquid2 Venture
- Sources on record
- 1thesaasnews.com
From the source
Rilian Bags $17.5M in Seed Round
Rilian, an AI-native cybersecurity and defense systems integration company based in McLean, Virginia, has closed a $17.5 million seed and seed extension funding round to scale its agentic AI platform for cyber and defense applications.
thesaasnews.com · 23 April 2026 ↗The Mandos read
What the record says about Rilian
- Momentum 47 / 100 · Coolinglocked →
pillars in the platform
- 30 employees · up 15% last month · 1 open roleslocked →
history and breakdowns in the platform
- Exit Readiness: Lowlocked →
Tested against 751 past exits in the Mandos record: 43% sat in Watch or Elevated 2 years before. Companies in Elevated exited at 3.1× the record's rate.
Funding history
Rilian funding on record
Rilian has raised $23M in priced equity. Its most recent round was a Seed in April 2026.
Latest round on record: Seed, Apr 2026.
Rilian funding on the profile →In the platform
The round is the fact. The read is the product.
Every round, investor and correction for Rilian, the competitors buyers weigh it against, hiring by department, and an alert when the next thing happens.
The same record answers in Claude, ChatGPT and Cursor through the Mandos MCP server.
The Mandos Brief
Cybersecurity funding, deals and moves, every Monday.
FAQ
Questions people ask
- How much did Rilian raise in its Seed?
- Rilian raised $17.5M in a Seed announced on 23 April 2026.
- Who invested in Rilian's Seed?
- The round was led by 8VC, First In, Tamarack Global, Perot Jain, 8090 Industries, Protego Ventures, Liquid2 Venture.
- What does Rilian do?
- Rilian is a cybersecurity company specializing in Security Operations, founded in 2024 and headquartered in McLean, United States.












