# Thea Energy

Private

Kearny, New Jersey  
Energy & Sustainability [https://thea.energy/](https://thea.energy/)

Last Round

Series B Extension

Aug 18, 2026

Est. Valuation

$302.7M

Total Funding Raised

$220M

Momentum

Top 1% of companies Caplight tracks

## Company Overview

Thea Energy is a clean energy company that develops a fusion energy system designed to provide a limitless source of zero-emission power, utilizing stellarator physics and engineering with planar coils to facilitate continuous fusion reactions.

Sector

Energy & Sustainability

Verticals

Renewable Energy

Business Model

B2B

Customer Profile

Services & Consulting, Government Contracts, Data as a Service

AI Layer

Application

Keywords

fusion energy, stellarator, fusion power plant, clean energy, digital twin, baseload power, magnetic confinement, deep tech, power purchase agreement, PPA, energy infrastructure, fusion startup, carbon-free energy, computational modeling, AI surrogate model

## Thea Energy Comparables

| Company | Similarity | Market Cap |
| --- | --- | --- |
| [Type One Energy Group](/content/company/type-one-energy-group/index.html) | 87% |  -  |
| [Helical Fusion Co., Ltd.](/content/company/helicalfusion/index.html) | 86% |  -  |
| [Realta Fusion](/content/company/realtafusion/index.html) | 83% |  -  |
| Comparable company | 50% |  -  |

## Thea Energy Funding Rounds

| Round | Date | Amount Raised | Valuation | Investors | Sources |
| --- | --- | --- | --- | --- | --- |
| Series B Extension | Aug 18, 2026 |  -  |  -  |  -  |  -  |
| Strategic | Jul 2, 2026 |  -  |  -  |  -  |  -  |
| Series B | May 27, 2026 |  -  |  -  |  -  |  -  |
| Series A | Feb 8, 2024 |  -  |  -  |  -  |  -  |
| Grant | Jul 27, 2023 |  -  |  -  |  -  |  -  |
| Grant | Jun 1, 2023 |  -  |  -  |  -  |  -  |

## Key People

**Brian Berzin**  
Chief Executive Officer  
[LinkedIn profile](https://www.linkedin.com/in/brian-berzin "LinkedIn profile")

**David Gates**  
Chief Technology Officer  
[LinkedIn profile](https://www.linkedin.com/in/david-gates-50643b50 "LinkedIn profile")

## Thea Energy Investors

| Investor | Rounds |
| --- | --- |
| [Linse Capital](/content/investor/linsecapital/index.html) | Series B, Series B Extension |
| [Overlay Capital](/content/investor/overlaycapital/index.html) | Series B, Series B Extension |
| [Orion Industrial Ventures](/content/investor/orion-industrial-ventures/index.html) | Series B, Series A, Series B Extension |
| [Climate Capital](/content/investor/climate-capital/index.html) | Series B |
| [US Innovative Technology Fund](/content/investor/usitfund/index.html) | Series B, Series B Extension |
| [Mercator Partners](/content/investor/mercator-partners/index.html) | Series B, Series A, Series B Extension |
| [HV Fund](/content/investor/hv-fund-1/index.html) | Series B, Series A, Series B Extension |

## Frequently Asked Questions

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## Firmographic Details

- **Headquarters:** Kearny, New Jersey  
- **Employee Range:** 96  
- **Year Founded:** 2022  
- **Last Funding:** Aug 18, 2026