Steven Anthony Angstmann

SCF Ventures (SCF Ventures) is a venture capital arm of SCF Partners LLC founded in 2018. The firm is headquartered in Houston, Texas.

Onestep Power Solutions, Inc. operates in oil & gas industry. The company is headquartered in Houston, TX.

HyperSciences, Inc. is a company that harnesses extreme velocity to revolutionize clean energy drilling, tunneling, mining, and aerospace. The company is based in Spokane, WA. The company utilizes their hypersonic accelerator, which is one of the world's fastest engines. The company was founded in 2014 by Mark Russell. Andrew Joiner has been the CEO of the company since 2023.

Petro Al engages in exploration of oil and gas. The firm's products include DO Rockteller, DCA Wrangler, CI Bandit and OPS Ranger. The company was founded by Troy Ruths in 2013 and is headquartered in Houston, TX.

Innovative Downhole Solutions, Inc. develops sensors for MWD (Measurement While Drilling), LWD (Logging While Drilling), and WL (Wireline) tools. The company is based in Houston, TX. The company was founded in 2016 by Medhat Mickael.

GEODynamics BV provides oil and gas exploration services. It offers commercial development and perforating technology to the global oil and gas industry. The company was founded in 2003 by David S. Wesson and is headquartered in Amsterdam, the Netherlands

Highland Fluid Technology, Inc. operates as a solutions business for oilfield fluid economics and performance. It offers robust, technology to process and recycle the fluids used in the upstream oil and gas business, fluids such as drilling muds and completion fluids. The company was founded by Kevin Smith and Lawrence Hibbard and is headquartered in Houston, TX.

Vertice Oil Tools, Inc. develops and designs tools for optimizing oil and gas completion solutions. The company was founded in 2017 and is headquartered in Missouri City, TX.

Commando Pressure Control, Inc. provides technology solutions for zipper manifolds and hydraulic fracturing equipment. The company was founded by Joseph Boyd in 2015 and is headquartered in Houston, TX.

Lime Rock Partners LLC provides investment services in the exploration and production, energy service, and oil service technology sectors. The company was founded by Jonathan Clark Farber and John T. Reynolds in 1998 and is headquartered in Westport, CT.

Oil & Gas Technologies is a company that designs, manufactures, and distributes products for the industrial, oil, gas, and energy sectors. The company is based in Houston, TX. The company was founded by Hossam Elbadawy, who has been the CEO since incorporation.

Advantek Waste Management Services LLC provides waste management services. It services include Treatment and Recycling, Disposal and Consulting and Software Licensing. The company was founded by Ahmed Abou-Sayed on August 15, 2014 and is headquartered in Houston, TX.

Kinetic Upstream Technologies LLC develops automated rotary steerable systems and applications for drilling. The company was founded by Jeff Lasater and George Sutherland and is headquartered in Houston, TX.

The American Society of Naval Engineers, Inc. operates as a professional engineering society for engineers, scientists, and allied professionals who conceive, design, develop, test, construct, outfit, operate, and maintain complex naval and maritime ships, submarines and aircraft, and their associated systems and subsystems. The company was founded in 1888 and is headquartered in Alexandria, VA.

Rheidiant, Inc. provides oil and gas services. The company was founded by Murat Ocalan and is headquartered in Houston, TX.

SCF Partners LLC (SCF Partners) is a private equity subsidiary of SCF Partners, Inc. founded in 1989 by L.E. Simmons. The firm is headquartered in Houston, Texas.

Deep Imaging Technologies, Inc. develops electromagnetic imaging systems. It offers systems for land-based subsurface imaging. The firm's technology applications encompass oil and gas exploration, hydraulic fracturing, and reservoir management. The company was founded by Alexander Kalish and Trevor K. C. Pugh in 2008 and is headquartered in Tomball, TX.

TGT Oil & Gas Services FZC provides game-changing measurement and modeling solutions to the oil and gas industry. It offers reservoir flow, production diagnostic and well integrity solutions in any well type, through multiple barriers and on any conveyance using slim hole tools. The firm also offers spectral noise logging, magnetic imaging defectoscope, production logging suite, and temperature and hydrodynamics modeling simulator technologies. The company was founded by Arthur Aslanyan in 1998 and is headquartered in Dubai, United Arab Emirates.

Tercel Oilfield Products Ltd. designs and produces drilling and well construction products. It offers fixed cutter bits, roller cone, cutter technology, reamers, drilling heads, stabilizers, shock tools, jars, motors, centralizers, casing and reaming shoes, navigators and driltools. The company was founded in January 2010 and is headquartered in Dubai, the United Arab Emirates.

AccessESP LLC provides rigless electric submersible pump conveyance solutions for the global oil industry. It offers a permanent magnet motor and a side pocket mandrel wet connect system, into a patented solution consisting of a tubing-mounted permanent completion and a slickline retrievable assembly. The company was founded by Geoff Kimber-Smith and Phil Head in 2004 and is headquartered in Houston, TX.

Thrustmaster of Texas, Inc. engages in the manufacture of commercial marine propulsion equipment. Its products include Azimuth thrusters, portable dynamic positioning, outboard propulsion units, retractable thrusters, water jets, tunnel thrusters, portable river ferry and hybrid propulsion systems. The company was founded by Joseph R. Bekker in 1984 and is headquartered in Houston, TX.