Sebastian Plamthottam

Argonaut Private Equity LLC (Argonaut Private Equity) is a private equity firm founded in 2002 by Jason Martin and George B. Kaiser. The firm is headquartered in Tulsa, Oklahoma.

Falcon Flowback Services LLC provides flowback and well testing services for the separation and recovery of fluids, solid debris and proppant used during hydraulic fracturing operations. It specializes in pressure control, well testing, plug drill out and sand separation. The company is headquartered in Oklahoma City, OK.

Kineta, Inc. engages in the development of novel immuno-therapies. It develops a pipeline of therapies that address critical unmet patient needs in oncology, chronic pain and biodefense. The company was founded by Shawn P. Iadonato and Charles L. Magness in 2008 and is headquartered in Seattle, WA.

Otis Eastern Service LLC engages in the construction and maintenance of oil and gas pipeline systems. It provides greenfield and loop line constructions, in-situ replacements, remediation, row stabilization, slip repairs, and upgrades and testing. The company was founded in 1936 and is headquartered in Wellsville, NY.

Mammoth Carbon Products LLC is a pipeline products distribution company. Its products include electric resistance weld, double submerged arc welded, seamless and spiral weld pipes. The firm serves petrochemical and water well market segments. The company was founded in 2014 and is headquartered in Scottsdale, AZ.

SEF Energy LLC operates as an investment holding company. It delivers returns through methodical capital allocation, asset management and leadership. The company was founded in 2014 and is headquartered in Oklahoma City, OK.

QRC Valve Distributors LLC is a company that provides highly responsive master distribution services for valves. The company is based in Stafford, TX. The company offers a deep selection of valves and ensure timely delivery to support their clients and customers. The company was founded in 2016. Jesse Jones has been the CEO of the company since 2017.

JAC Holding Enterprises, Inc. operates as a holding company. The company is headquartered in U.S.

Argonaut Private Capital LP offers investment advisory services. The private company is based in Tulsa, OK. Steve R. Mitchell has been the CEO of the company since 2016.

• Downing Wellhead Equipment LLC provides oil and gas field machinery and equipment. The firm’s products include wellhead and multi-bowl systems, frac equipment, and fs completion systems. Its services include equipment repair, frac support and maintenance, valve service and greasing, and customer property management. The company was founded in 1980 and is headquartered Oklahoma City, OK.

Gibson, Dunn & Crutcher LLP provides legal services. It offers services to labor, employment, entertainment and media law, toxic torts and other environmental services. The company was founded in 1890 and is headquartered in Los Angeles, CA.

2929 Entertainment LP owns and operates theatres. It produces and finances movies through two production companies such as 2929 Productions and HDNet Films. The company was founded by Mark Cuban and Todd R. Wagner in 2003 and is headquartered in Los Angeles, CA.

Petroplex Acidizing, Inc. provides acidizing and chemical treatments for oil, gas and injection wells. Its products include Petrosol X-25, anti-sludge systems, petrol and custom acid blends. The firm also provides acidizing, acid-frac transports, pressure pumping and pump down, pressure testing, step rate injection, backside monitoring services. The company was founded by Larry D. Foster in 1981 and is headquartered in Midland, TX.

Xerox Corp. engages in the integration of paper and digital products. The firm offers home, office, office laser, multifunction and all in one printer, digital sheet-fed printing presses and scanner. The company was founded in 1906 and is headquartered in Norwalk, CT.

Johnson & Johnson, Inc. provides insurance brokerage services. The company was founded in 1930 and is headquartered in Mount Pleasant, SC.

Part of Kimberly-Clark Corp., Safeskin Corp. is a manufacturer of disposable gloves for the healthcare and scientific industries. The company is based in Roswell, GA. Safeskin was acquired by Kimberly-Clark Corp. on February 08, 2000 for $666.47 million. The company was founded by Neil K. Braverman, Richard Jaffe.

Applied Industrial Machining LLC provides precision machining services. Its services include precision cnc machining, contract manufacturing, magnetic particle testing and welding. The company was founded by Robert Gilson and Mike Drain in 1986 and is headquartered in Oklahoma City, OK.

McNellie's Group is a restaurant group that owns and operates eleven restaurant concepts in an unspecified location. The private company is based in Tulsa, OK. The company's restaurants include Fassler Hall, Dust Bowl, Yokozuna, Dilly Diner, El Guapo's, McNellie's Pub, The Tavern, and The Bond Event Center.

Part of Miratech Group LLC, Miratech Holdings, Inc. operates as a holding company. The company is based in Oklahoma City, OK.

Mark Young Construction, Inc. provides refrigeration and commercial construction services. Its services include multi-plex refrigeration systems, conventional, four-pipe kool gas defrost system piping, refrigeration control, concrete, rough and finish carpentry, and mechanical and plumbing. The company was founded in 1989 and is headquartered in Frederick, CO.

American Cementing LLC provides cementing and acidizing products. The company is headquartered in Tulsa, OK.

Global Technology Partners LLC is a technology company. The private company is based in Boston, MA.

Specific Systems LLC provides air-conditioning, heating, ventilating and pressurization systems. Its customers include the oil and gas, refineries and power plants, mining and resource extraction, pulp and paper mills industries. The company was founded in 1974 and is headquartered in Tulsa, OK.

Raisbeck Engineering, Inc. develops, markets and manufactures worldwide-certified performance improvement systems. The firm offers systems for the Beechcraft King Air, Bombardier Learjet and DeHaviland Twin Otter and also builds products for commercial aircraft. The company was founded by James D. Raisbeck and Sherry Raisbeck in 1982 and is headquartered in Seattle, WA.

Advokatfirma DLA Piper Sweden AB provides legal services. It offers services in the areas of banking and finance, corporate, employment, insurance and reinsurance, life sciences, litigation, public procurement, real estate, tax intellectual property and technology. The company was founded by Gunnar Lindh in 1940 and is headquartered in Stockholm, Sweden.

ViaCyte, Inc. develops a stem cell-derived islet replacement therapy for the treatment of diabetes. Its development portfolio includes VC-01 product candidate, a cell replacement therapy for the treatment of type 1 diabetes. The company was founded in 1999 and is headquartered in San Diego, CA.

Enterprise Investors Sp zoo (Enterprise Investors) is a private equity firm founded in 1990 by John Birkelund and Robert Faris. The firm is headquartered in Warsaw, Poland.

CareATC, Inc. operates onsite and near-site medical clinics. The firm provides customized healthcare solutions to employers that have reduced healthcare costs by promoting health, preventing disease and providing a shorter path to care for employees. The firm serves corporations, municipalities and school districts. The company was founded by Ron Woods in 2000 and is headquartered in Tulsa, OK.

Miratech Group LLC operates emission solutions for stationary natural gas and diesel reciprocating engines. It offers NSCR catalysts, SCR catalysts, diesel particulate filters, custom solutions, emission housings and silencers, engine, low pressure drop, spark arresting, and disk silencers, custom piping, expansion joints and ladders. The company was founded in 1992 and is headquartered in Tulsa, OK.

Omega Capital Management LLC (Omega Capital Management) is a private equity firm subsidiary of Jason S. Martin Revocable Trust founded in 2013 by Jason S. Martin. The firm is headquarter in Tulsa, Oklahoma.

M & M Environmental Group LLC provides environmental services to oil and gas industry. It provides a range of services from spill containment and rig services to completions and disposal. The firm's services include rig services, trucking, disposal, completions, contract labor and sandblasting and painting services. It offers services to the steel, coal, construction and waste management industries. The company was founded by Sam McFadin in 2010 and is headquartered in Conway, AR.