![Don Althoff](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Don Althoff
Director/Board Member at
ECOVYST INC.
Net worth: 396 396 $ as of 2026-08-30
Profile
Donald L.
Althoff is Chairman at Aux Sable Liquid Products, Inc. and Independent Director at Ecovyst, Inc. since 2024.
Former roles include President & Chief Executive Officer at Flex Fuels USA LLC in 2012, President, Chief Executive Officer & Director at Veresen, Inc. from 2012 to 2017, Chairman at Aux Sable Canada LP from 2019 to 2022, Chairman at Veresen Midstream LP from 2019 to 2022, and Director at Alliance Pipeline LP from 2019 to 2022.
Education includes undergraduate studies at the University of Illinois.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
ECOVYST INC 0.04% | 2026-04-12 | 38,977 ( 0.04% ) | 396 396 $ | 2026-08-30 |
Don Althoff active positions
| Companies | Position | Start |
|---|---|---|
| ECOVYST INC. | Director/Board Member | 2024-05-07 |
Aux Sable Liquid Products, Inc.
 Aux Sable Liquid Products, Inc. Oil & Gas ProductionEnergy Minerals Extracts and processes natural gas liquids | Chairman | - |
Former positions of Don Althoff
| Companies | Position | End |
|---|---|---|
Alliance Pipeline LP
 Alliance Pipeline LP Oil & Gas PipelinesIndustrial Services Provides oil and gas pipeline transportation services | Director/Board Member | 2022-11-30 |
Aux Sable Canada LP
 Aux Sable Canada LP Specialty TelecommunicationsCommunications Provides communication and natural gas distribution services | Chairman | 2022-11-30 |
Veresen Midstream LP
 Veresen Midstream LP Oil & Gas ProductionEnergy Minerals Engages in natural gas liquids (NGL) midstream business | Chief Executive Officer | 2019-08-31 |
| VERESEN INC | Chief Executive Officer | 2017-08-31 |
Flex Fuels USA LLC
 Flex Fuels USA LLC Gas DistributorsUtilities Produces and distributes ethanol and other alternative fuels | Chief Executive Officer | 2012-08-31 |
Training of Don Althoff
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
43
1st degree connections
8
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 8 |
|---|---|
Alliance Pipeline LP
Alliance Pipeline LP Oil & Gas PipelinesIndustrial Services Provides oil and gas pipeline transportation services | Industrial Services |
University of Illinois
 University of Illinois Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Flex Fuels USA LLC
Flex Fuels USA LLC Gas DistributorsUtilities Produces and distributes ethanol and other alternative fuels | Utilities |
Aux Sable Liquid Products, Inc.
Aux Sable Liquid Products, Inc. Oil & Gas ProductionEnergy Minerals Extracts and processes natural gas liquids | Energy Minerals |
Aux Sable Canada LP
Aux Sable Canada LP Specialty TelecommunicationsCommunications Provides communication and natural gas distribution services | Communications |
Veresen, Inc.
 Veresen, Inc. Gas DistributorsUtilities Owns and operates energy infrastructure assets | Utilities |
Veresen Midstream LP
Veresen Midstream LP Oil & Gas ProductionEnergy Minerals Engages in natural gas liquids (NGL) midstream business | Energy Minerals |
Ecovyst, Inc.
 Ecovyst, Inc. Chemicals: SpecialtyProcess Industries Manufactures catalysts, specialty materials and chemicals | Process Industries |
- Stock Market
- Insiders
- Don Althoff
