John Clarke

Chairman at

Pipe Pros LLC

73 year

75 connections

Industrial Services

Energy Minerals

Producer Manufacturing

Profile

John U.
Clarke has assumed the role of Senior Advisor to the firm.
He joined Turnbridge in 2011 and remains a Partner.
In his current role, he is a resource for advice and counsel to the firm’s Investment Committee and the management teams of our portfolio companies.
Prior to joining Turnbridge, Mr. Clarke was Chairman and Chief Executive Officer of Natco Group Inc., a publicly-traded global oil field equipment manufacturer and services provider, until its sale to Cameron International in 2009.
During a four decade period, Mr. Clarke served as a senior executive in several large, publicly-traded, energy related companies spanning the upstream, midstream and downstream markets.
Mr. Clarke serves as Chairman of Cimarron, Inc. He has served on a number of public and private company boards and is currently a member of the board of directors of Thermon Holdings, Inc. (NYSE: THR) where he chairs the Nomination and Corporate Governance Committee which, among other duties, has primary oversight responsibility for the Company’s ESG initiatives.
Mr. Clarke earned a Bachelor of Arts degree in Economics from the University of Texas and a Masters of Business Administration from Southern Methodist University.

John Clarke active positions

Companies	Position	Start
Turnbridge Capital LLC Turnbridge Capital LLC Investment ManagersFinance Turnbridge Capital invests in middle market companies located in the United States with revenues of USD 25 -250 million. The firm targets companies operating in the fields of energy, infrastructure and industrial end markets. It provides financing for growth recapitalizations, management buyouts, corporate spinouts and leveraged build-ups with an investment size of USD 20 - 100 million. It acquires majority interest.	Consultant / Advisor	-
Pipe Pros LLC Pipe Pros LLC Electrical ProductsProducer Manufacturing Provides casing and tubing running services	Chairman	-
Cimarron Energy, Inc. Cimarron Energy, Inc. Oilfield Services/EquipmentIndustrial Services Manufactures oil and natural gas production and processing equipment	Chairman	-
Aereon, Inc. Aereon, Inc. Environmental ServicesIndustrial Services Provides gas and vapor handling, combustion and recovery technologies and services	Chairman	-
Cimarron Energy Holdco, Inc. Cimarron Energy Holdco, Inc. Engineering & ConstructionIndustrial Services Controls greenhouse gas emissions	Chairman	-
Glori Energy Technology, Inc. Glori Energy Technology, Inc. Contract DrillingIndustrial Services Provides bio-technology solutions to global oil and gas industries	Chairman	-

All active positions of John Clarke

Former positions of John Clarke

Companies	Position	End
THERMON GROUP HOLDINGS, INC.	Chairman	01/06/2026
RANGER OIL CORPORATION	Director/Board Member	12/09/2016
GLORI ENERGY INC.	Chairman	29/06/2015
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Training of John Clarke

Experiences
Positions held

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Private companies

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Connections

1st degree connections

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Executives

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Linked companies

Private companies	24
Allwaste, Inc. Allwaste, Inc. Miscellaneous Commercial ServicesCommercial Services Provides integrated industrial and environmental cleaning and maintenance services	Commercial Services
Coterra Energy, Inc. Coterra Energy, Inc. Oil & Gas ProductionEnergy Minerals Provides oil and natural gas development, exploration & production services	Energy Minerals
Ranger Oil Corp. Ranger Oil Corp. Oil & Gas ProductionEnergy Minerals Engages in the onshore development and production of crude oil and natural gas	Energy Minerals
Dynegy, Inc. /Old/ Dynegy, Inc. /Old/ Oil & Gas ProductionEnergy Minerals Produces and sells electricity, natural gas, and natural gas liquids	Energy Minerals
The Houston Exploration Co. The Houston Exploration Co. Integrated OilEnergy Minerals Provides oil and gas exploration services	Energy Minerals
Tenneco, Inc. Tenneco, Inc. Auto Parts: OEMProducer Manufacturing Manufactures and sells automotive emission control, ride control products and systems	Producer Manufacturing
Tesco Corp. Tesco Corp. Oilfield Services/EquipmentIndustrial Services Engages in the business of designing, manufacturing and providing service delivery of technology based solutions	Industrial Services
NATCO Group, Inc. NATCO Group, Inc. Oilfield Services/EquipmentIndustrial Services Designs and manufactures wellhead equipment and systems used in the production of oil and gas	Industrial Services
Simmons & Company International Simmons & Company International Investment Banks/BrokersFinance Provides brokerage services	Finance
Cimarron Energy, Inc. Cimarron Energy, Inc. Oilfield Services/EquipmentIndustrial Services Manufactures oil and natural gas production and processing equipment	Industrial Services
Glori Energy Technology, Inc. Glori Energy Technology, Inc. Contract DrillingIndustrial Services Provides bio-technology solutions to global oil and gas industries	Industrial Services
Thermon Group Holdings, Inc. Thermon Group Holdings, Inc. Industrial MachineryProducer Manufacturing Operates as an industrial technology company that provides process heating, temperature maintenance and environmental monitoring solutions	Producer Manufacturing
Glori Energy, Inc. Glori Energy, Inc. Oilfield Services/EquipmentIndustrial Services Engages in the exploration of oil and gas properties	Industrial Services
Southern Methodist University Southern Methodist University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Harvest Natural Resources, Inc. Harvest Natural Resources, Inc. Oil & Gas ProductionEnergy Minerals Acquires, develops and produces oil and natural gas properties	Energy Minerals
Transco Energy Co. LLC Transco Energy Co. LLC Oil & Gas PipelinesIndustrial Services Operates natural gas pipelines	Industrial Services
The University of Texas at Austin The University of Texas at Austin Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
SCF Partners LLC SCF Partners LLC Investment ManagersFinance SCF Partners invests in companies located across the globe. The firm targets companies operating in the fields of oil & gas, renewable energy, mining and energy services sectors. It participates in buyout and growth stage capital transactions.	Finance
Concept Capital Group, Inc.
Flare Industries LLC Flare Industries LLC Environmental ServicesIndustrial Services Develops combustion and pollution control technology and equipment	Industrial Services
Turnbridge Capital LLC Turnbridge Capital LLC Investment ManagersFinance Turnbridge Capital invests in middle market companies located in the United States with revenues of USD 25 -250 million. The firm targets companies operating in the fields of energy, infrastructure and industrial end markets. It provides financing for growth recapitalizations, management buyouts, corporate spinouts and leveraged build-ups with an investment size of USD 20 - 100 million. It acquires majority interest.	Finance
Pipe Pros LLC Pipe Pros LLC Electrical ProductsProducer Manufacturing Provides casing and tubing running services	Producer Manufacturing
Aereon, Inc. Aereon, Inc. Environmental ServicesIndustrial Services Provides gas and vapor handling, combustion and recovery technologies and services	Industrial Services
Cimarron Energy Holdco, Inc. Cimarron Energy Holdco, Inc. Engineering & ConstructionIndustrial Services Controls greenhouse gas emissions	Industrial Services