Koloma Current · Verified less than 14 days ago · Last verified: Oct 19, 2026

Koloma: $5.5B valuation, IPO Readiness 44, Series C. Koloma is a geologic hydrogen company that identifies and extracts naturally occurring hydrogen deposits from . Track live on The IPO Stack.

Series CClimate & Energyprivate
44
/100
IPO Readiness Score
Grade D — Early Stage
TechStackIPO proprietary score based on funding scale, valuation, stage progression & momentum.
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Koloma is a geologic hydrogen company that identifies and extracts naturally occurring hydrogen deposits from the Earth's crust to provide a low-cost, carbon-free energy source.

Valuation
$5.5B
Total Funding
$786.7M
Stage
Series C
Sector
Climate & Energy
Headquarters
Denver, CO
CEO
Tom Darrah
IPO Status
private

Funding History

September 2021
Seed
$5M
March 2023
Series A
$91M
June 2026
Series B
$246M
July 2026
Series C
$265M
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Related Analysis

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Track Koloma IPO timeline, funding rounds, investor activity, and valuation on TechStackIPO — the pre-IPO intelligence platform.

Frequently Asked Questions

When is Koloma going public? +

Koloma has not publicly announced IPO plans. Track TechStackIPO for the latest signals and subscribe to The IPO Stack for weekly updates.

What is Koloma's current valuation? +

Koloma is valued at $5.5B as of March 2023. This valuation is based on its most recent private funding round tracked by TechStackIPO.

How can I invest in Koloma before IPO? +

Accredited investors can access Koloma shares through secondary market platforms, pre-IPO investment funds, and broker-dealer platforms that facilitate private company transactions. TechStackIPO's marketplace tracks available access options. Note: pre-IPO investments carry higher risk and limited liquidity compared to public market investing.

What is Koloma's IPO Readiness Score? +

Koloma scores 44/100 (Grade: D) on TechStackIPO's IPO Readiness Index. The score evaluates funding scale, valuation trajectory, funding momentum, stage progression, and company maturity. Scores above 70 indicate strong near-term IPO potential.

How much total funding has Koloma raised? +

Koloma has raised $786.7M in total venture capital and private equity funding, with backing from Breakthrough Energy Ventures, Prelude Ventures, Amazon Climate Pledge Fund.

Who are Koloma's key investors? +

Koloma's notable investors include Breakthrough Energy Ventures, Prelude Ventures, Amazon Climate Pledge Fund. Full investor details, funding round history, and lead investor breakdowns are available on TechStackIPO.

What sector is Koloma in? +

Koloma is a Climate & Energy company. Koloma is a geologic hydrogen company that identifies and extracts naturally occurring hydrogen deposits from the Earth'.

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