Profile
Mark A.
Schleifer worked as a Senior Director of Network Engineering at Digex from 1994 to 2000 and as a Vice President of IP Engineering at Cogent Communications Group, Inc. from 2000 to 2011.
Former positions of Mark A. Schleifer
| Companies | Position | End |
|---|---|---|
Cogent Communications Group, Inc.
 Cogent Communications Group, Inc. Specialty TelecommunicationsCommunications Cogent Communications Group, Inc. provides broadband Internet services. The company was founded by David Schaeffer in August 1999 and is headquartered in Washington, DC. | Corporate Officer/Principal | 2011-12-01 |
| Digex/Intermedia Communications, Inc. | Corporate Officer/Principal | 1999-12-31 |
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Male
Female
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Linked companies
| Private companies | 2 |
|---|---|
Cogent Communications Group, Inc.
Cogent Communications Group, Inc. Specialty TelecommunicationsCommunications Cogent Communications Group, Inc. provides broadband Internet services. The company was founded by David Schaeffer in August 1999 and is headquartered in Washington, DC. | Communications |
| Digex/Intermedia Communications, Inc. |
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