David Thomas

Director/Board Member at HERITAGE-CRYSTAL CLEAN, INC

Finance

Industrial Services

Producer Manufacturing

Profile

Mr. David F.
Thomas is a Partner at JF Lehman & Co., Inc. He is on the Board of Directors at Heritage-Crystal Clean, Inc., Lone Star Disposal LP, NorthStar Group Holdings LLC, PURIS LLC and Trident Maritime Systems, Inc. Mr. Thomas was previously employed as an Analyst by Credit Suisse Securities (USA) LLC (Broker) and a President by Trident Maritime Systems LLC.
He received his undergraduate degree from Yale University.

David Thomas active positions

Companies	Position	Start
HERITAGE-CRYSTAL CLEAN, INC	Director/Board Member	17/10/2023
JF Lehman & Co., Inc. JF Lehman & Co., Inc. Investment ManagersFinance JF Lehman invests in companies located in North America and the United Kingdom with an EBITDA of USD 15 - 150 million. The firm targets companies operating in the fields of defense, aerospace, maritime, government and environmental sectors. It provides financing for acquisition and add-on investments with an investment size of USD 75 - 750 million.	Private Equity Investor	01/01/2013
Trident Maritime Systems, Inc. Trident Maritime Systems, Inc. Trucks/Construction/Farm MachineryProducer Manufacturing Engages in shipbuilding and installation of maritime solutions	Director/Board Member	-
NorthStar Group Holdings LLC NorthStar Group Holdings LLC Engineering & ConstructionIndustrial Services Provides environmental remediation and demolition services	Director/Board Member	-
Inland Pipe Rehabilitation LLC Inland Pipe Rehabilitation LLC Engineering & ConstructionIndustrial Services Provides underground pipe rehabilitation services	Director/Board Member	-
Lone Star Disposal LP Lone Star Disposal LP TruckingTransportation Provides construction and demolition, municipal solid waste disposal and related environmental services	Director/Board Member	-

All active positions of David Thomas

Former positions of David Thomas

Companies	Position	End
Credit Suisse Securities (USA) LLC (Broker) Credit Suisse Securities (USA) LLC (Broker) Investment Banks/BrokersFinance Provides brokerage services	Analyst-Equity	31/12/2009
Trident Maritime Systems LLC Trident Maritime Systems LLC Trucks/Construction/Farm MachineryProducer Manufacturing Engages in design, engineering and construction of ship systems	President	-

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Education of David Thomas

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Linked companies

Private companies	9
Credit Suisse Securities (USA) LLC (Broker) Credit Suisse Securities (USA) LLC (Broker) Investment Banks/BrokersFinance Provides brokerage services	Finance
JF Lehman & Co., Inc. JF Lehman & Co., Inc. Investment ManagersFinance JF Lehman invests in companies located in North America and the United Kingdom with an EBITDA of USD 15 - 150 million. The firm targets companies operating in the fields of defense, aerospace, maritime, government and environmental sectors. It provides financing for acquisition and add-on investments with an investment size of USD 75 - 750 million.	Finance
Yale University Yale University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Heritage-Crystal Clean, Inc. Heritage-Crystal Clean, Inc. Miscellaneous Commercial ServicesCommercial Services Provides environmental and waste management services & operates waste recovery centers	Commercial Services
Inland Pipe Rehabilitation LLC Inland Pipe Rehabilitation LLC Engineering & ConstructionIndustrial Services Provides underground pipe rehabilitation services	Industrial Services
Trident Maritime Systems LLC Trident Maritime Systems LLC Trucks/Construction/Farm MachineryProducer Manufacturing Engages in design, engineering and construction of ship systems	Producer Manufacturing
NorthStar Group Holdings LLC NorthStar Group Holdings LLC Engineering & ConstructionIndustrial Services Provides environmental remediation and demolition services	Industrial Services
Lone Star Disposal LP Lone Star Disposal LP TruckingTransportation Provides construction and demolition, municipal solid waste disposal and related environmental services	Transportation
Trident Maritime Systems, Inc. Trident Maritime Systems, Inc. Trucks/Construction/Farm MachineryProducer Manufacturing Engages in shipbuilding and installation of maritime solutions	Producer Manufacturing