Halliburton Labs a clean technology accelerator program that brings together entrepreneurs, academics and investors, has welcomed seven more startups.

The subsidiary of Halliburton Co. said Dec. 13 that Airovation Technologies, Ayrton Energy, Cache Energy, CENS, Disa Technologies, Marel Power Solutions and XtraLit have joined its collaborative environment.

“We are pleased to welcome these promising energy startups and provide customized support to help them achieve their specific priorities, accelerate commercialization and increase valuation,” Halliburton Labs Managing Director Dale Winger said in a news release. “Our experienced practitioners and network will help these companies use their time and capital efficiently.”

The companies specialize in a variety of clean energy technologies that can help reduce greenhouse gas emissions.

Airovation Technologies’ proprietary carbon mineralization technology targets hard-to-abate industries in efforts to reduce emissions with carbon capture and utilization. Ayrton Energy is developing liquid organic hydrogen carrier storage technology to enable long-distance transport of hydrogen without losses and pipeline corrosion.

Cache Energy is developing a long duration energy storage solution that scales to inter-seasonal durations, through a low-cost solid fuel, the release stated. CENS develops enhanced dry dispersion technology that enables high energy density, high power and improved cycle performance in lithium-ion batteries.

Disa utilizes patented minerals liberation technology to more efficiently isolate target minerals and mitigate environmental impacts to its users, according to the news release. Electrification innovator Marel Power Solutions offers novel power-stack technology. Israel-based XtraLit develops a technology for direct lithium extraction from brines.

The selections are “part of Halliburton Labs’ ambition to advance energy and climate innovation and help early-stage companies by contributing expertise, connections, facilities, and more to help achieve strategic scaling milestones,” Halliburton said in its press release.

Marel Power Solutions is innovating electrification through its power-stack technology and XtraLit is an Israeli company that develops a technology for direct lithium extraction from brines.

The next Halliburton Labs Finalists Pitch Day is Thursday, March 14 in New Orleans as part of the New Orleans Entrepreneur Week and 3rd Coast Venture Summit.