GA Drilling, a Houston, TX-based geothermal drilling company, has raised $44.1 million in a funding round led by TomEnterprise.
The round also saw participation from Underground Ventures.
The amount consisted of $24.7M in new funding and $19.4M converted from a SAFE investment raised last year.
Read More:Great Sky Raises $14M in Seed Funding
The company plans to use the funds to grow its operations and accelerate development.
GA Drilling successfully tested its NexTitan system at the NORCE Research facility in Norway, producing 32,000 lbf under real downhole conditions. This confirmed that NexTitan can drill deeper and through formations that previously made deep drilling too expensive, enabling geothermal wells that were once cost-prohibitive and reducing non-productive time for oil and gas operators. With this validation complete, GA Drilling is now moving forward with development work for a major deepwater offshore operator and preparing its first commercial drilling projects with customers.
Recent tensions in the Middle East, including disruptions to tanker traffic through the Strait of Hormuz, highlight the fragility of global oil and gas supply chains. Geothermal energy, by contrast, is produced locally from heat beneath the earth and is not affected by shipping, export limits, or international politics.
The main obstacle to expanding geothermal energy has been drilling costs. NexTitan solves this problem, making geothermal wells faster, cheaper, and safer to drill.
According to the IEA, over three-quarters of the investment needed for next-generation geothermal uses the same equipment, engineering, and supply chains as oil and gas. GA Drilling builds on that foundation. In 2024, the company formed a development and validation partnership with a major deepwater offshore operator—one of the world’s largest and most technically demanding energy companies. This collaboration tests NexTitan in the toughest operational environments, establishing GA Drilling as a trusted supplier to top global operators and proving the technology works where it matters most.
It is an exceptional outcome in a market where most large funding rounds have focused on software or AI. The IEA projects that geothermal could provide up to 15% of global electricity by 2050, up from less than 1% today. NexTitan is specifically designed to eliminate the drilling cost barrier that currently limits access to this energy resource.
“This investment gives us the resources to speed up large-scale commercial deployment,” said Tony Branch, CEO of GA Drilling. “NexTitan is built to cut drilling costs, and these funds let us prove it with real-world customer data across multiple regions. Our focus is on execution—showing field performance is how you build trust in this industry, and that’s our goal for 2026.”
“Getting to this stage took constant testing, several pivots, and the belief that deep geothermal would one day be a key market,” said Igor Kocis, Founder of GA Drilling. “This investment confirms both the technology and the timing. With today’s focus on energy security, NexTitan is becoming strategically essential.”
In 2026, NexTitan moves from validated technology to an active drilling solution. Campaigns are already being planned with geothermal developers and oil & gas operators in key markets, and early adopters will set the standard for large-scale deployment. NexTitan works with any rig or workflow and is designed to drill deeper, faster, and at lower cost. GA Drilling is now open for business.
About GA Drilling
Founded in 2008 by Dušan Kočiš and Tomáš Krištofič, GA Drilling is a global technology company making deep geothermal energy cost-effective at scale with NexTitan, the world’s first downhole anchoring and drive system for deep, ultra-deep, and ultra-long-reach drilling. With offices in the U.S., U.K., Brazil, and Slovakia, GA Drilling applies proven oil & gas expertise to unlock the next generation of clean, locally sourced energy.
Read More:AgZen Raises $10M in Series B Funding
