United States · Seed startup

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 summaryUpdated 26 Oct 2026

$3.0Mraised across 2 rounds since 2024, from 2 sources

$500KPre-seed$2.5MSeed
Latest round
Seed, $2.5MMar 2025
Step-upi
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
$500KPre-seed$2.5MSeed
First round
Pre-seed, $500K
Sept 2024
Biggest round
$2.5M
Seed · Mar 2025
Between rounds
6 months
from the last two

The rounds

  1. Mar 2025
    Seed$2.5M3 new

    Source recorded

  2. Sept 2024
    Pre-seed$500K1 new

    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.

Everyone who backed them

Y CombinatorAccelerator1round
GaingelsPrivate equity1round
MassChallengeAccelerator1round
Alchemist AcceleratorAccelerator1round

Missing a round, or an investor who was in one? Tell us.

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.

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