Fourier

formerly Fourier Earth

An On-Site, On-Demand Hydrogen Production System

Mountain View, United States · Founded 2022 · $18.5M raised

Employees
11–50
Founded
2022
Business Model
B2B
Total Funding
$18.5M
Last Round
$18.5M Series AApr 2025
Rounds
3

Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.

Indexed holds 3 funding rounds and 2 investors for this company. The full record is or through the API.

About

Fourier builds an on-site, on-demand hydrogen production system that generates hydrogen onsite with a modular and scalable system. Fourier eliminates the need for transportation and storage, targeting long term distributed storage for renewable energy, alternate fuels for heavy transportation use cases, and better feedstock and processes for chemical and manufacturing industries. Hydrogen holds enormous potential as an energy-dense and clean fuel, and Fourier was founded on the principle of Engineering Audacity.

Summary

Fourier is an Energy company based in Mountain View, United States, founded in 2022. It has raised $18.5M in total across 3 rounds, most recently a $18.5M Series A round in Apr 2025. Investors include General Catalyst and Paramark Ventures.

Tech & App Stack

2 technologies & apps tracked

Every product and vendor across these categories, with where each signal came from.

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Funding History

Series ASeries AApr 2025
$18.5M

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Funding: Seed through Series A. Amounts, valuations, and investors where available.

Investors

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