| Mark Schell | Biotechnology | at Black Earth Humic LP | · Calgary |
| Mark Schell | Owner | at Jhc Operations | · Oshawa |
| Mark Schell | Chief Executive Officer | at Southwest Terminal Ltd | · Miles Cove |
| Mark Schell | Industrial Sales and Leasing | at CB Richard Ellis Group, Inc. | · Calgary |
| Mark Schell | Member | at CB Richard Ellis Group, Inc. | · Calgary |
| Mark Schell | Owner | at Filter Queen | · Oshawa |
| Mark Schell | Owner | at Filter Queen | · Oshawa |
| Mark Schell | President | at Aci Capital Co Inc | · Toronto |
| Mark Schell | director | at 1419125 Ontario Ltd. | · Scarborough Bluffs |
| Mark Schell | Owner | at United Carpet Ltd | · Slave Lake |
| Mark Schell | Computer Software | at Opentext | · Waterloo, Ontario |
| Mark Schell | Member | at Schell Brothers Real Estate Corp. | · Calgary |