# Tesseral funding: rounds and investors

> Tesseral has raised $3.3M across 1 round since 2025. Investors include Y Combinator. Every round with its source.

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

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

# Who invested in *Tesseral*

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

Funding summary Updated 26 Oct 2026

**$3.3M** raised across 1 round since 2025, from 1 source

- **Latest round:** Seed, $3.3M May 2025
- **Investors:** 1

See who backed them

## The rounds

- **May 2025** Seed **$3.3M** [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=tesseral).

## Quick answers about Tesseral

### Who invested in Tesseral?

Tesseral's investors include Y Combinator.

### How much has Tesseral raised?

Tesseral has raised $3.3M across 1 round since 2025.

### When did Tesseral last raise?

Tesseral's most recent round was a Seed of $3.3M in May 2025.

### What was Tesseral's biggest round?

Its most recent round, $3.3M in May 2025, is also its largest on record.

### Who backed Tesseral first?

Tesseral's first round on record, in May 2025, was backed by Y Combinator.

### What stage is Tesseral at?

Tesseral's latest named round is a Seed, in May 2025.

### Where is Tesseral based?

Tesseral is based in the United States.

## Companies like Tesseral

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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