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Justin Rosenberg
Chief Executive Officer at
BLOCKMATE VENTURES INC.
Net worth: 17 910 $ as of 30/07/2026
Profile
Justin Rosenberg is the founder of Hivello Operations BV.
Mr. Rosenberg is the Chief Executive Officer & Director at Blockmate Ventures, Inc. since 2022.
Mr. Rosenberg was Chairman & Secretary at Longreach Oil Ltd. from 2015 to 2016.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 12/06/2025 | 663,338 ( 0.44% ) | 17 910 $ | 30/07/2026 |
Justin Rosenberg active positions
| Companies | Position | Start |
|---|---|---|
| BLOCKMATE VENTURES INC. | Chief Executive Officer | 16/11/2022 |
Former positions of Justin Rosenberg
| Companies | Position | End |
|---|---|---|
| LONGREACH OIL LIMITED | Chief Executive Officer | 29/02/2024 |
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
17
1st degree connections
2
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 2 |
|---|---|
Longreach Oil Ltd.
 Longreach Oil Ltd. Oil & Gas ProductionEnergy Minerals Engages in exploration of oil and gas, metals and minerals | Energy Minerals |
Blockmate Ventures, Inc.
 Blockmate Ventures, Inc. MiscellaneousMiscellaneous Provides foreign currency exchange services | Miscellaneous |
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- Justin Rosenberg
