RECENT FUNDING
  1. Recent Funding
  2. Companies
  3. Silmaril

Silmaril

Silmaril secures enterprise generative AI tools by deploying automated, real-time firewalls to stop complex prompt injection attacks.

Developer tools and cloudY Combinator
Latest funding

$500K*

Source: ycombinator.com

Latest round on record: Pre Seed, June 2026, amount undisclosed.

All 2 rounds ↓
Website: silmaril.dev.
LinkedIn: silmarilsecurity.
Category: Developer tools and cloud.
Sectors: B2B.
Stage: Pre Seed.
Based in: San Francisco, United States.
Last round: Jun 16, 2026 · 149 days ago.
Team: 2 people on the team page.
On Recent Funding since: Sep 28, 2026.

Signals

Website registeredJun 23, 2025 (17 months old)

Funding rounds

  1. Pre Seed · amount undisclosed
  2. Website created
  3. Date unknown
    Round · $500K*
    YY Combinator
    Source: ycombinator.com

Founders and team

Investors

Companies like Silmaril

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/silmaril (get a free API key).

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