Silmaril
Runtime security for AI that self-improves
Silmaril is active in the b2b space based in San Francisco, CA, USA.
Profile
Silmaril is the first runtime security for AI that self-improves. It understands application context to block 2x as many threats as current SOTA defenses with 10x lower latency. Customers plug us into agentic frameworks like LangGraph with 5 lines of code. Silmaril has stopped $28M of damages for customers.
Its activity falls under b2b; the profile below is assembled from public directory data.
San Francisco, CA, USA is where the company is located.
Its current recorded stage is Spring 2026.
Recorded headcount: 2 employees.
Directory analysis
Silmaril is a B2B startup based in San Francisco that offers runtime security for AI systems, self‑improving to block twice as many threats as current state‑of‑the‑art defenses while maintaining low latency. Their solution integrates with agentic frameworks like LangGraph via a simple five‑line code plug‑in and has reportedly prevented $28 million in damages for customers.
Positioning: Silmaril positions itself as a next‑generation AI security provider targeting enterprises that deploy agentic or LLM‑based applications. Its focus on low‑latency, self‑improving defenses could differentiate it in a crowded AI security market, though it remains early‑stage with a limited employee count.
Note: Silmaril offers a plug‑in style runtime AI security solution that claims to double threat coverage with minimal latency.
Auto-generated directory analysis from public data · updated 7 Oct 2026. Informational only, not investment advice.
| Sector | B2B |
|---|---|
| Headquarters | San Francisco, CA, USA |
| Country | USA |
| Employees | 2 |
| Stage | Spring 2026 |
Website: silmaril.dev
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