# Silmaril funding: rounds and investors

> Silmaril has raised across 1 round since 2026. Investors include Y Combinator. Every round with its source.

Source: https://millionrounds.com/company/silmaril (Millionrounds; every figure on the page links to its filing or article)

United States · [Venture startup](https://millionrounds.com/companies)

# Who invested in *Silmaril*

One round we have observed, with the one investor named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Cybersecurity

Raised 5 months ago

Funding summary Updated 26 Oct 2026

**Undisclosed** raised across 1 round since 2026, from 1 source

- **Latest round:** Venture Jun 2026
- **Investors:** 1

See who backed them

## The rounds

- **Jun 2026** Venture **Amount undisclosed** [Y Combinator](https://millionrounds.com/fund/y-combinator) Source recorded

## Everyone who backed them

[Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=silmaril).

## Also claim to have backed them

This firm lists Silmaril as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

[Spot VC](https://millionrounds.com/fund/spot-vc) VC firm Per its own site

## Quick answers about Silmaril

### Who invested in Silmaril?

Silmaril's investors include Y Combinator.

### How much has Silmaril raised?

Silmaril has raised 1 round since 2026, none with a disclosed amount.

### When did Silmaril last raise?

Silmaril's most recent round was a Venture in Jun 2026.

### Who backed Silmaril first?

Silmaril's first round on record, in Jun 2026, was backed by Y Combinator.

### What stage is Silmaril at?

Silmaril's latest named round is a Venture, in Jun 2026.

### Where is Silmaril based?

Silmaril is based in the United States.

## Companies like Silmaril

In the same sector, and raised in the last eighteen months.

[**FORT Robotics** $39M · Oct 2026](https://millionrounds.com/company/fort-robotics)[**Opsin** $21M · Oct 2026](https://millionrounds.com/company/opsin)[**Harmonic Security** $68M · Oct 2026](https://millionrounds.com/company/harmonic-security)[**Reach Security** $60M · Oct 2026](https://millionrounds.com/company/reach-security)[**Persona** $210M · Oct 2026](https://millionrounds.com/company/persona)[**Hilt** $4.7M · Oct 2026](https://millionrounds.com/company/hilt)

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