Ranger Energy Services, Inc. provides onshore high specification well service rigs, wireline completion services, and complementary services to exploration and production companies in the United States.

Emerald Holding, Inc. operates business-to-business (B2B) trade shows in the United States. The company operates trade shows in various industry sectors, including retail, design and construction, technology, equipment, and safety and security.

NCS Multistage Holdings, Inc. provides engineered products and support services for oil and natural gas well completions and field development strategies in the United States, Canada, and internationally.

Thermon Group Holdings, Inc. provides engineered industrial process heating solutions for process industries worldwide. Its products include electric heating products, such as air heaters and heating accessories, boilers and calorifiers, controlling and monitoring solutions, heat tracing systems, tank heating systems, thermostats, tubing bundles, and system accessories, as well as strip, tubular, immersion, and process heaters; and gas heating products, including enclosure and explosion proof gas catalytic heaters, gas fired blowers, and gas heating accessories that comprise regulators, valves, mounting brackets, and battery cables.

Select Energy Services, Inc., an oilfield services company, provides water management and chemical solutions to the onshore oil and gas industry in the United States.