Career history of Mark Williamson
Former positions of Mark Williamson
| Companies | Position | Start | End |
|---|---|---|---|
| ORION ENERGY SYSTEMS, INC. | Director/Board Member | 2009-04-28 | 2022-11-09 |
| Independent Dir/Board Member | 2009-04-28 | 2022-11-09 | |
| Putnam Roby Williamson Communications | Chairman | 2012-07-10 | 2017-12-31 |
| Corporate Officer/Principal | 2007-12-31 | 2012-07-10 | |
American Transmission Co. LLC
 American Transmission Co. LLC Electric UtilitiesUtilities American Transmission Co. owns and operates the high-voltage electric transmission system. It provides electric transmission services in portions of Wisconsin, Michigan, Minnesota, and Illinois. It serves electricity producers and electric distribution companies. The company was founded by José M. Delgado in 2001 and is headquartered in Waukesha, WI. | Corporate Officer/Principal | 2001-12-31 | 2007-12-31 |
Madison Gas & Electric Co.
 Madison Gas & Electric Co. Alternative Power GenerationUtilities Madison Gas & Electric Co. generates and distributes electricity and natural gas. The company was founded in 1896 and is headquartered in Madison, WI. | Corporate Officer/Principal | 1985-12-31 | 2001-12-31 |
Training of Mark Williamson
| University of Washington Law School | Graduate Degree |
Statistics
International
| United States | 6 |
Operational
| Corporate Officer/Principal | 3 |
| Director/Board Member | 1 |
| Independent Dir/Board Member | 1 |
Sectoral
| Utilities | 3 |
| Electronic Technology | 2 |
| Consumer Services | 2 |
Positions held
Active
Inactive
Listed companies
Private companies
Linked companies
| Listed companies | 1 |
|---|---|
| ORION ENERGY SYSTEMS, INC. | Electronic Technology |
| Private companies | 3 |
|---|---|
American Transmission Co. LLC
American Transmission Co. LLC Electric UtilitiesUtilities American Transmission Co. owns and operates the high-voltage electric transmission system. It provides electric transmission services in portions of Wisconsin, Michigan, Minnesota, and Illinois. It serves electricity producers and electric distribution companies. The company was founded by José M. Delgado in 2001 and is headquartered in Waukesha, WI. | Utilities |
| Putnam Roby Williamson Communications | |
Madison Gas & Electric Co.
Madison Gas & Electric Co. Alternative Power GenerationUtilities Madison Gas & Electric Co. generates and distributes electricity and natural gas. The company was founded in 1896 and is headquartered in Madison, WI. | Utilities |
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