![Mark Esler](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 Esler
Founder at
DATA#3 LIMITED
Net worth: 14 M $ as of 30/05/2026
Profile
Mark R.
Esler is the founder of Data#3 Ltd., founded in 1977, and holds the title of Independent Non-Executive Director since 2019.
Mr. Esler is currently a Member at the Australian Computer Society.
Formerly, Mr. Esler was General Manager-Product Solutions at Data#3 Ltd. from 2010 to 2014.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
DATA#3 LIMITED. 1.36% | 05/08/2025 | 2,113,249 ( 1.36% ) | 14 M $ | 30/05/2026 |
Mark Esler active positions
| Companies | Position | Start |
|---|---|---|
| DATA#3 LIMITED | Founder | 31/12/1976 |
Australian Computer Society
 Australian Computer Society Miscellaneous Commercial ServicesCommercial Services Provides professional technology services | Corporate Officer/Principal | 29/12/2010 |
Former positions of Mark Esler
| Companies | Position | End |
|---|---|---|
| DATA#3 LIMITED | Director/Board Member | 31/12/2001 |
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
75
1st degree connections
2
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 2 |
|---|---|
Data#3 Ltd.
 Data#3 Ltd. Information Technology ServicesTechnology Services Engages in the business of providing information technology solutions | Technology Services |
Australian Computer Society
Australian Computer Society Miscellaneous Commercial ServicesCommercial Services Provides professional technology services | Commercial Services |
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