# Pinnacle funding: rounds and investors

> Pinnacle has raised $3.0M across 2 rounds since 2024. Investors include Y Combinator, Gaingels and MassChallenge. Every round with its source.

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

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

# Who invested in *Pinnacle*

2 rounds we have observed, with the 4 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

B2B

Funding summary Updated 26 Oct 2026

**$3.0M** raised across 2 rounds since 2024, from 2 sources

**$500K** Pre-seed **$2.5M** Seed

- **Latest round:** Seed, $2.5M Mar 2025
- **Step-up i:** 5×
- **Investors:** 4

See who backed them

## The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2025

**$500K** Pre-seed

**$2.5M** Seed

- **First round:** Pre-seed, $500K
- **Biggest round:** $2.5M
- **Between rounds:** 6 months

## The rounds

- **Mar 2025** Seed **$2.5M** *3 new* [Gaingels](https://millionrounds.com/fund/gaingels) [MassChallenge](https://millionrounds.com/fund/masschallenge) [Alchemist Accelerator](https://millionrounds.com/fund/alchemist-accelerator) Source recorded
- **Sept 2024** Pre-seed **$500K** *1 new* [Y Combinator](https://millionrounds.com/fund/y-combinator) Source recorded

## Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

**Pre-seed** 2024 **Seed** 2025 [Y Combinator](https://millionrounds.com/fund/y-combinator) [Gaingels](https://millionrounds.com/fund/gaingels) [MassChallenge](https://millionrounds.com/fund/masschallenge) [Alchemist Accelerator](https://millionrounds.com/fund/alchemist-accelerator)

## Everyone who backed them

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

[Gaingels](https://millionrounds.com/fund/gaingels) Private equity **1** round

[MassChallenge](https://millionrounds.com/fund/masschallenge) Accelerator **1** round

[Alchemist Accelerator](https://millionrounds.com/fund/alchemist-accelerator) Accelerator **1** round

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

## Quick answers about Pinnacle

### Who invested in Pinnacle?

Pinnacle's investors include Y Combinator, Gaingels, MassChallenge and Alchemist Accelerator.

### How much has Pinnacle raised?

Pinnacle has raised $3.0M across 2 rounds since 2024.

### When did Pinnacle last raise?

Pinnacle's most recent round was a Seed of $2.5M in Mar 2025.

### What was Pinnacle's biggest round?

Its most recent round, $2.5M in Mar 2025, is also its largest on record.

### Who backed Pinnacle first?

Pinnacle's first round on record, in Sept 2024, was backed by Y Combinator.

### What stage is Pinnacle at?

Pinnacle's latest named round is a Seed, in Mar 2025.

### Where is Pinnacle based?

Pinnacle is based in the United States.

## Companies like Pinnacle

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

[**MURAL** $67M · Oct 2026](https://millionrounds.com/company/mural)[**Different** $48M · Oct 2026](https://millionrounds.com/company/different)[**Dapta** $6.0M · Oct 2026](https://millionrounds.com/company/dapta)[**Amani Therapeutics** $60M · Oct 2026](https://millionrounds.com/company/amani-therapeutics)[**Relay** $207M · Oct 2026](https://millionrounds.com/company/relay)[**Bash Capital1** $5.7M · Sept 2026](https://millionrounds.com/company/bash-capital1)

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