![Barry Patterson](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>)
Barry Patterson
No open positions remaining
Net worth: 62 M $ as of 31/05/2026
Profile
Barry Sydney Patterson was the founder of GR Engineering Services Ltd. founded in 2006, where he held the title of Independent Non-Executive Director from 2013 to 2020.
He is also the founder of JR Engineering Services Pty Ltd., Eltin Ltd., National Mine Management Pty Ltd. Mr. Patterson's former positions include Non-Executive Chairman at Sonic Healthcare Ltd. from 1999 to 2010, Non-Executive Chairman at Silex Systems Ltd. from 1992 to 2010, and Independent Non-Executive Director at Dacian Gold Ltd. from 2012 to 2020.
He is also a member of the Australasian Institute of Mining & Metallurgy.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 12/09/2025 | 7,500,000 ( 4.4% ) | 31 M $ | 31/05/2026 | |
| 15/09/2025 | 1,817,416 ( 0.37% ) | 26 M $ | 31/05/2026 | |
Downer EDI Ltd.
 Downer EDI Ltd. Engineering & ConstructionIndustrial Services Provides transportation, energy, utility infrastructure and facility management services 0.13% | 11/07/2025 | 891,642 ( 0.13% ) | 5 M $ | 31/05/2026 |
Former positions of Barry Patterson
| Companies | Position | End |
|---|---|---|
| GR ENGINEERING SERVICES LIMITED | Founder | 15/12/2020 |
Australasian Institute of Mining & Metallurgy
 Australasian Institute of Mining & Metallurgy Miscellaneous Commercial ServicesCommercial Services Provides services to professionals engaged in all facets of the global resources sector | Corporate Officer/Principal | 15/12/2020 |
| DACIAN GOLD | Director/Board Member | 30/11/2020 |
| SILEX SYSTEMS LIMITED | Chairman | 27/10/2010 |
| SONIC HEALTHCARE LIMITED | Chairman | 27/10/2010 |
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
25
1st degree connections
8
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 8 |
|---|---|
Sonic Healthcare Ltd.
 Sonic Healthcare Ltd. Medical/Nursing ServicesHealth Services Provides pathology and radiology services | Health Services |
Silex Systems Ltd.
 Silex Systems Ltd. SemiconductorsElectronic Technology Engages in research and development of the laser isotope separation technology | Electronic Technology |
JR Engineering Services Pty Ltd.
 JR Engineering Services Pty Ltd. Engineering & ConstructionIndustrial Services Provides engineering services | Industrial Services |
Eltin Ltd.
 Eltin Ltd. Engineering & ConstructionIndustrial Services Provides surface and underground contract mining services | Industrial Services |
Australasian Institute of Mining & Metallurgy
Australasian Institute of Mining & Metallurgy Miscellaneous Commercial ServicesCommercial Services Provides services to professionals engaged in all facets of the global resources sector | Commercial Services |
National Mine Management Pty Ltd. | |
GR Engineering Services Ltd.
 GR Engineering Services Ltd. Engineering & ConstructionIndustrial Services Provides engineering, consulting and contracting services | Industrial Services |
Dacian Gold Ltd.
 Dacian Gold Ltd. Precious MetalsNon-Energy Minerals Engages in the exploration and mining of gold | Non-Energy Minerals |
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