# Polyphron funding: rounds and investors

> Polyphron has raised $20M across 1 round since 2026. Investors include Quiet Capital, Pareto Holdings and Gradient. Every round with its source.

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

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

# Who invested in *Polyphron*

One round we have observed, with the 5 investors 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.

AI

Raised 2 months ago

Funding summary Updated 26 Oct 2026

**$20M** raised across 1 round since 2026, from 2 sources

- **Latest round:** Seed, $20M Sept 2026
- **Investors:** 5

See who backed them

## The rounds

- **Sept 2026** Seed **$20M** [Quiet Capital](https://millionrounds.com/fund/quiet-capital) [Pareto Holdings](https://millionrounds.com/fund/pareto-holdings) [Gradient](https://millionrounds.com/fund/gradient-ventures) [Haystack](https://millionrounds.com/fund/haystack) [Compound](https://millionrounds.com/fund/compound-4) Reported by AlleyWatch and 1 other

## Founders and team

From Polyphron's own website: 1 founder, 3 on the team.

**Fabio Boniolo** 2x exited AI founder and former quant analyst.

- **Matt Osman** CEO
- **George Pilitsis** COO
- **Vinh Q. Tran** Chief AI Scientist

## Everyone who backed them

[Quiet Capital](https://millionrounds.com/fund/quiet-capital) VC firm **1** round

[Pareto Holdings](https://millionrounds.com/fund/pareto-holdings) VC firm **1** round

[Gradient](https://millionrounds.com/fund/gradient-ventures) VC firm **1** round

[Haystack](https://millionrounds.com/fund/haystack) VC firm **1** round

[Compound](https://millionrounds.com/fund/compound-4) VC firm **1** round

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

## Also claim to have backed them

This firm lists Polyphron 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.

[Humba Ventures](https://millionrounds.com/fund/humba-ventures) VC firm Per its own site

## Quick answers about Polyphron

### Who invested in Polyphron?

Polyphron's investors include Quiet Capital, Pareto Holdings, Gradient, Haystack and Compound.

### How much has Polyphron raised?

Polyphron has raised $20M across 1 round since 2026.

### When did Polyphron last raise?

Polyphron's most recent round was a Seed of $20M in Sept 2026.

### What was Polyphron's biggest round?

Its most recent round, $20M in Sept 2026, is also its largest on record.

### Who backed Polyphron first?

Polyphron's first round on record, in Sept 2026, was backed by Quiet Capital, Pareto Holdings and Gradient and 2 others.

### What stage is Polyphron at?

Polyphron's latest named round is a Seed, in Sept 2026.

### Where is Polyphron based?

Polyphron is based in the United States.

## Companies like Polyphron

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

[**SpaceX** $42B · Oct 2026](https://millionrounds.com/company/spacex)[**xPay** $1.5M · Oct 2026](https://millionrounds.com/company/xpay)[**Albert Invent** $20M · Oct 2026](https://millionrounds.com/company/albert-invent)[**FORT Robotics** $39M · Oct 2026](https://millionrounds.com/company/fort-robotics)[**Pika** $216M · Oct 2026](https://millionrounds.com/company/pika)[**Vertical Semiconductor** $84M · Oct 2026](https://millionrounds.com/company/vertical-semiconductor)

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