![Mark Dennison](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>)
Mark Dennison
General Counsel at
CONSTELLATION SOFTWARE INC.
Net worth: 6 M $ as of 2026-05-30
Profile
Mark Dennison is currently a Director at Constellation Software Japan, Inc. He previously held the position of Secretary & General Counsel at Constellation Software, Inc. and was a Member of the Ontario Bar Association.
He has a graduate degree from the University of Toronto and an undergraduate degree from the University of Windsor.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-04-14 | 2,922 ( 0.01% ) | 6 M $ | 2026-05-30 |
Mark Dennison active positions
| Companies | Position | Start |
|---|---|---|
| CONSTELLATION SOFTWARE INC. | General Counsel | 2000-12-31 |
Ontario Bar Association
 Ontario Bar Association Miscellaneous Commercial ServicesCommercial Services Operates as association that provides legal services | Corporate Officer/Principal | 1998-12-31 |
Constellation Software Japan, Inc.
 Constellation Software Japan, Inc. Electronics DistributorsDistribution Services Distributes software solutions and services | Director/Board Member | - |
Training of Mark Dennison
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
75
1st degree connections
5
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 5 |
|---|---|
Constellation Software, Inc.
 Constellation Software, Inc. Packaged SoftwareTechnology Services Develops and installs software & provides professional services | Technology Services |
University of Toronto
 University of Toronto Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
University of Windsor
 University of Windsor Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Ontario Bar Association
Ontario Bar Association Miscellaneous Commercial ServicesCommercial Services Operates as association that provides legal services | Commercial Services |
Constellation Software Japan, Inc.
Constellation Software Japan, Inc. Electronics DistributorsDistribution Services Distributes software solutions and services | Distribution Services |
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