Martin Craighead

PQ Corp. produces silicate, zeolite, and other performance materials. It serves the detergent, pulp and paper, chemical, petroleum, catalyst, water treatment, construction and beverage markets. The firm's products include lithium silicates, magnesium sulfate, sodium silicate liquids and solids. It also manufactures silica gel products for catalyst and anti-blocking applications and the zeolite products for adsorbent applications. The company was founded by Joseph Elkinton in 1831 and is headquartered in Malvern, PA.

XGS Energy, Inc. is a geothermal energy company that specializes in the deployment of terawatt-scale geothermal heat and power. The company is based in Palo Alto, CA. XGS Energy's proprietary heat-harvesting technology and closed-loop well architecture allow for a 24/7, carbon-free, scalable, and truly closed-loop heat-harvesting system. The company's system requires only a fraction of the water and cost of other geothermal systems. Joshua W. Prueher has been the CEO of the company since 2023.

Baker Hughes Holdings LLC supplies oilfield services, products, technology, and systems to the worldwide oil and natural gas industry. It provides products and services for other businesses including downstream chemicals, and process and pipeline services. The company is headquartered in Houston, TX.

Part of Baker Hughes Co., Baker Hughes Inteq GmbH provides support services for petroleum and gas extraction. The private company is based in Celle, Germany.