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Gregg Piontek
Director of Finance/CFO at
NPK INTERNATIONAL INC.
Net worth: 12 M $ as of 2026-08-30
Profile
Mr. Gregg S.
Piontek is a Chief Accounting Officer, Controller & VP at NPK International, Inc., a Director & Vice President at Newpark Drilling Fluids LLC, a Director & Vice President at NPK Access Solutions LLC and a President & Director at NPK Holdings LLC.
He is on the Board of Directors at Newpark International UK Ltd., Newpark Drilling Fluids LLC, NPK Access Solutions LLC and NPK Holdings LLC.
Mr. Piontek was previously employed as a Chief Accounting Officer & Vice President by Stewart & Stevenson LLC and a Chief Accounting Officer & Vice President by Stewart & Stevenson Services, Inc. He received his undergraduate degree from Arizona State University and an MBA from Marquette University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-05-31 | 923,182 ( 1.09% ) | 12 M $ | 2026-08-30 |
Gregg Piontek active positions
| Companies | Position | Start |
|---|---|---|
| NPK INTERNATIONAL INC. | Director of Finance/CFO | 2011-09-30 |
Newpark Drilling Fluids LLC
 Newpark Drilling Fluids LLC Industrial MachineryProducer Manufacturing Provides field drilling fluid systems | Director/Board Member | - |
NPK Access Solutions LLC
 NPK Access Solutions LLC Engineering & ConstructionIndustrial Services Provides mat rental and integrated site services | Director/Board Member | - |
Newpark International UK Ltd.
 Newpark International UK Ltd. Miscellaneous Commercial ServicesCommercial Services Operates as a holding company whose subsidiaries engages in supporting petroleum and natural gas extraction through research & experimental development on biotechnology | Director/Board Member | 2019-03-13 |
Former positions of Gregg Piontek
| Companies | Position | End |
|---|---|---|
Stewart & Stevenson LLC
 Stewart & Stevenson LLC Oilfield Services/EquipmentIndustrial Services Designs, manufactures and markets oil and gas equipment | Comptroller/Controller/Auditor | 2006-12-31 |
Stewart & Stevenson Services, Inc.
 Stewart & Stevenson Services, Inc. Motor VehiclesConsumer Durables Manufactures engineered and power products | Comptroller/Controller/Auditor | - |
Training of Gregg Piontek
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
50
1st degree connections
8
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 8 |
|---|---|
NPK International, Inc.
 NPK International, Inc. Building ProductsProducer Manufacturing Rents recyclable composite matting systems and provides manufacturing, sales & site construction services for power transmission, oil and natural gas exploration sectors | Producer Manufacturing |
Stewart & Stevenson Services, Inc.
Stewart & Stevenson Services, Inc. Motor VehiclesConsumer Durables Manufactures engineered and power products | Consumer Durables |
Newpark Drilling Fluids LLC
Newpark Drilling Fluids LLC Industrial MachineryProducer Manufacturing Provides field drilling fluid systems | Producer Manufacturing |
NPK Access Solutions LLC
NPK Access Solutions LLC Engineering & ConstructionIndustrial Services Provides mat rental and integrated site services | Industrial Services |
Arizona State University
 Arizona State University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Marquette University
 Marquette University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Stewart & Stevenson LLC
Stewart & Stevenson LLC Oilfield Services/EquipmentIndustrial Services Designs, manufactures and markets oil and gas equipment | Industrial Services |
Newpark International UK Ltd.
Newpark International UK Ltd. Miscellaneous Commercial ServicesCommercial Services Operates as a holding company whose subsidiaries engages in supporting petroleum and natural gas extraction through research & experimental development on biotechnology | Commercial Services |
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