# Whistle Systems funding: rounds and investors

> Whistle Systems has raised $3.2M across 1 round since 2022. Investors include M25. Every round with its source.

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

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

# Who invested in *Whistle Systems*

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.

SaaS

Funding summary Updated 26 Oct 2026

**$3.2M** raised across 1 round since 2022, from 1 source

- **Latest round:** Seed, $3.2M Mar 2022
- **Investors:** 1

See who backed them

## The rounds

- **Mar 2022** Seed **$3.2M** [M25](https://millionrounds.com/fund/m25) Source recorded

## Everyone who backed them

[M25](https://millionrounds.com/fund/m25) VC firm **1** round

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

## Quick answers about Whistle Systems

### Who invested in Whistle Systems?

Whistle Systems's investors include M25.

### How much has Whistle Systems raised?

Whistle Systems has raised $3.2M across 1 round since 2022.

### When did Whistle Systems last raise?

Whistle Systems's most recent round was a Seed of $3.2M in Mar 2022.

### What was Whistle Systems's biggest round?

Its most recent round, $3.2M in Mar 2022, is also its largest on record.

### Who backed Whistle Systems first?

Whistle Systems's first round on record, in Mar 2022, was backed by M25.

### What stage is Whistle Systems at?

Whistle Systems's latest named round is a Seed, in Mar 2022.

### Where is Whistle Systems based?

Whistle Systems is based in the United States.

## Companies like Whistle Systems

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

[**CapitalOS** $52M · Oct 2026](https://millionrounds.com/company/capitalos)[**DashFuel** Oct 2026](https://millionrounds.com/company/dashfuel)[**DrizzleX** $9.1M · Oct 2026](https://millionrounds.com/company/drizzlex)[**Sharp Performance** $30M · Oct 2026](https://millionrounds.com/company/sharp-performance)[**Clueso** $11M · Oct 2026](https://millionrounds.com/company/clueso)[**Luzern Risk** $57M · Sept 2026](https://millionrounds.com/company/luzern-risk)

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