# Quaise Energy

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/quaise-energy

- Industry: Renewable Energy
- Headquarters: Houston, US
- Website: www.quaise.com
- Total disclosed funding: $217M
- Latest round: Series B (Jun 25, 2026)
- Investors on record: 14

## About

Quaise Energy, Inc. is a pioneering company specializing in geothermal energy solutions, focusing on ultra-deep drilling technologies to access geothermal resources efficiently.

Founded in 2018 by its CEO and President, Carlos Araque, and Matt Houde and headquartered in Cambridge, US, Quaise Energy, Inc. is dedicated to developing advanced geothermal energy solutions. In August 2026, Quaise Energy, Inc. raised USD 180 million in series B funding from Nabors. The round was part of a larger USD 314 million series B funding.

Quaise Energy specializes in innovative geothermal energy solutions, primarily focusing on ultra-deep drilling technologies to access vast geothermal resources. Their core offering combines conventional rotary drilling methods with advanced high-power millimeter wave technology, enabling drilling to depths of up to 20 kilometers to harness superhot geothermal energy, reaching temperatures up to 500°C. This unique approach positions Quaise Energy to tap into the largest untapped energy source globally, addressing the critical need for clean and abundant energy to power civilization sustainably. The company targets various geographical markets, particularly regions rich in geothermal potential, such as the United States, parts of Europe, and several emerging economies where energy independence is a priority. Their technology serves diverse clients, including energy producers, utilities, and industrial operators seeking to transition to renewable energy sources.Quaise Energy’s revenue model centers around B2B transactions, primarily involving partnerships with energy companies and utilities looking to incorporate geothermal solutions into their energy portfolios. The company engages clients through long-term agreements, providing access to its proprietary drilling technologies and associated geothermal energy systems. Revenue is generated from service contracts for drilling operations, licensing of technology, and potentially revenue-sharing models based on energy produced. Flagship offerings, such as the hybrid drilling rig and enhanced geothermal systems, form the basis of these transactions, positioning Quaise Energy as a key player in the renewable energy sector. 

The company plans to use the August 2026 funding to support technology development, expansion efforts, and the commercialization of its millimeter-wave drilling platform.

## Funding rounds

- Series B, Jun 25, 2026, $134M — Prelude Ventures, JERA, Safar Partners, Idemitsu Kosan
- Series A, Nov 28, 2023, $25M — Prelude Ventures, Mitsubishi, Safar Partners, Standard Investments
- Series A, Jun 8, 2022, $12M — Prelude Ventures, Xplorer Capital, Hostplus, Safar Partners, TechEnergy Ventures
- Series A, Feb 10, 2022, $40M — Collaborative Fund, Nabors, Prelude Ventures, Engine Ventures, Safar Partners, 8090 Industries, Fine Structure Ventures
- Seed, May 22, 2020, $6M — Collaborative Fund, Engine Ventures, Safar Partners

## Investors

- Collaborative Fund (https://capitalatlas.ai/funds/collaborative-fund) — Seed, Series A
- Engine Ventures (https://capitalatlas.ai/funds/engine-ventures) — Seed, Series A
- Safar Partners (https://capitalatlas.ai/funds/safar-partners) — Seed, Series A, Series B
- Nabors — Series A
- Prelude Ventures — Series A, Series B
- 8090 Industries (https://capitalatlas.ai/funds/8090-industries) — Series A
- Fine Structure Ventures (https://capitalatlas.ai/funds/fine-structure-ventures) — Series A
- Xplorer Capital (https://capitalatlas.ai/funds/xplorer-capital) — Series A
- Hostplus — Series A
- TechEnergy Ventures (https://capitalatlas.ai/funds/techenergy-ventures) — Series A
- Mitsubishi — Series A
- Standard Investments (https://capitalatlas.ai/funds/standard-investments) — Series A
- JERA — Series B
- Idemitsu Kosan — Series B