About
Helmet Security, founded in 2025 in Washington D.C., is a cybersecurity company offering an end-to-end platform focused on protecting agentic AI communication infrastructure, particularly MCP-based servers.
Full tier & rationale — an SVTR Intelligence benefit
Capital graph
Company· 3
Investor· 2
Founders / team· 1
Founders / core team
Investors
Funding history
- 2025-12Seed$9M
Investors · WhiteRabbit Ventures, SYN Ventures
Comparable companies· by market
This company
BusinessLatest roundTotal raisedDate- Helmet Security
End-to-end security platform for agentic AI communication infrastructure, focused on monitoring and hardening Model Context Protocol (MCP) servers and connections
Seed · $9M · 2025-12
$9M
United States
BusinessLatest roundTotal raisedDate- General Analysis
Agentic AI security infrastructure using adversarial scenarios, red teaming, monitoring and guardrails to find agent vulnerabilities and failure modes
Seed · $10M · 2026-05
$10M - Eve Security
Security monitoring for AI agents
Seed · $8M · 2026-09
$8M - ALIGNMT AI
AI compliance and governance platform for hospitals and health insurers, supporting compliance monitoring and patient safety protection
Seed · $7M · 2025-08
$7M
China
BusinessLatest roundTotal raisedDateEurope
BusinessLatest roundTotal raisedDate- Trent AI
Agentic security solution spanning the agent lifecycle to find and fix vulnerabilities in AI agents and their generated code
Seed · $13M · 2026-04
$13M - Mindgard
Helps companies protect their AI systems from cyber threats through automated security testing and vulnerability detection
Undisclosed · $8M · 2024-12
$8M - NeuralTrust
AI agent security platform for enterprises to discover, monitor and govern autonomous AI agents and block malicious interactions
Seed · $20M · 2026-06
$20M
Other / unspecified
BusinessLatest roundTotal raisedDateConfirmed rounds only. Matched on subsector, sector, stage and funding scale — each verifiable on the company profiles.
Investors that may fit
Accel
21 Security & Compliance deals in the last 24 months · 9 at a nearby stage · 16 in US East Coast
Request intro →Y Combinator
21 Security & Compliance deals in the last 24 months · 18 at a nearby stage · 19 in US East Coast
Request intro →Andreessen Horowitz
18 Security & Compliance deals in the last 24 months · 9 at a nearby stage · 16 in US East Coast
Request intro →Cyberstarts
18 Security & Compliance deals in the last 24 months · 4 at a nearby stage · 14 in US East Coast
Request intro →Greylock Partners
14 Security & Compliance deals in the last 24 months · 8 at a nearby stage · 12 in US East Coast
Request intro →Ten Eleven Ventures
14 Security & Compliance deals in the last 24 months · 10 at a nearby stage · 7 in US East Coast
Request intro →Ranked by each firm’s deals in this sector over the last 24 months, weighted by nearby stage and shared geography. Indicative only — no rating judgment.