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Brimstone Hill Capital

Brimstone Hill Capital

Overview

Brimstone Hill Capital is a US-based private equity firm that invests in pre-seed and seed stage tech-related companies.

Portfolio Companies

2

Investments

Brimstone Hill Capital investments
CompanyDateStageLead
Zephyr FusionDec 2025SeedCo-investor
LeherJun 2024SeedCo-investor

Sector & Stage Mix

Industry, funding stage, and valuation band breakdowns.

Premium
SeedSeries ASeries BGrowth

Portfolio analytics

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Investment Activity

Yearly cadence, pace, and funding raised over time.

Premium
2021
2022
2023
2024
2025
2026

Portfolio analytics

Caplight clients see yearly investment pace and funding raised over time.

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FAQ

Where is Brimstone Hill Capital based?

Brimstone Hill Capital is headquartered in United States.

When was Brimstone Hill Capital founded?

Founding year information for Brimstone Hill Capital is not publicly available.

How many portfolio companies does Brimstone Hill Capital have?

Brimstone Hill Capital has 2 portfolio companies in Caplight's dataset.

What are some companies in Brimstone Hill Capital's portfolio?

Portfolio companies visible on Caplight include Zephyr Fusion, Leher.

What was Brimstone Hill Capital's most recent investment shown here?

Brimstone Hill Capital's most recent investment in this portfolio sample was in Zephyr Fusion in 2025.

What sectors does Brimstone Hill Capital focus on?

Brimstone Hill Capital focuses on Frontier & Industrial Tech, Frontier & Industrial Tech, Energy & Sustainability, Energy & Sustainability.

What company stages does Brimstone Hill Capital focus on?

Brimstone Hill Capital typically invests at the Early stage.

Firmographic Details

HeadquartersUnited States
Year FoundedN/A

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