Eira Thomas
Net worth: 3 M $ as of 2026-05-30
Net worth: 3 M $ as of 2026-05-30
Eira Margaret Thomas founded Stornoway Diamond Corp.
in 1986, where she worked as Chief Executive Officer in 2011, Stornoway Ventures Ltd. in 1970, where she worked as Chief Executive Officer, Lucara Diamond Corp.
in 2007, where she worked as President, Chief Executive Officer & Director from 2018 to 2023, and Tectonic Metals, Inc. in 2026, where she is working as Chairman from 2026.
Ms. Thomas also founded Clara Diamond Solutions LP.
Ms. Thomas also currently works at North Arrow Minerals, Inc., as Chief Executive Officer & Director from 2026, Westhaven Gold Corp., as Chairman from 2024, Province of Northwest Territories, as Director, Prospectors & Developers Association of Canada, as Director, University of Toronto Alumni Association, as Director, Anglo Celtic Exploration Ltd., as Director, and Natural Diamond Council Ltd., as Director.
Ms. Thomas also formerly worked at Kaminak Gold Corp., as President, Chief Executive Officer & Director from 2013 to 2025, International Uranium Corp., as Director from 2005 to 2006, Suncor Energy, Inc., as Director from 2006 to 2009, Aber Diamond Corp., as Director & Vice President-Exploration from 1998 to 2006, Ashton Mining of Canada, Inc., as Director, Lundin Gold, Inc., as Director from 2009 to 2012, DPM Metals, Inc., as Independent Director from 2012 to 2014, Cornish Metals, Inc., as Director from 2004 to 2013, Suncor Energy Products, Inc., as Director, NWT & Nunavut Chamber of Mines, as Director, Suncor Energy, Inc., as Independent Director from 2011 to 2023, Aber Resources Ltd., as Vice President-Exploration from 1992 to 1999, Navigator Exploration Corp., as President from 2000 to 2004, Dominion Diamond Mines ULC, as Vice President, and Dominion Diamond Corp., as Vice President.
Ms. Thomas received her undergraduate degree in 1990 from the University of Toronto.
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-03-02 | 756,428 ( 0.83% ) | 1 M $ | 2026-05-30 | |
WESTHAVEN GOLD CORP 1.29% | 2026-02-03 | 3,334,094 ( 1.29% ) | 810 185 $ | 2026-05-30 |
| 2026-06-02 | 2,010,722 ( 4.37% ) | 490 616 $ | 2026-05-30 |
| Companies | Position | Start |
|---|---|---|
| WESTHAVEN GOLD CORP. | Chairman | 2024-01-23 |
| NORTH ARROW MINERALS INC. | Chief Executive Officer | 2025-04-30 |
| TECTONIC METALS INC. | Founder | - |
Natural Diamond Council Ltd.
Natural Diamond Council Ltd. Miscellaneous Commercial ServicesCommercial Services Provides professional, scientific and technical services | Director/Board Member | - |
Anglo Celtic Exploration Ltd.
Anglo Celtic Exploration Ltd. Other Metals/MineralsNon-Energy Minerals Operates a mining field | Director/Board Member | - |
Province of Northwest Territories
Province of Northwest Territories Province/StateGovernment Functions as a regional level government authority | Director/Board Member | 2010-10-18 |
University of Toronto Alumni Association | Director/Board Member | - |
Prospectors & Developers Association of Canada
Prospectors & Developers Association of Canada Miscellaneous Commercial ServicesCommercial Services Operates as a mineral exploration & development association | Director/Board Member | - |
| Companies | Position | End |
|---|---|---|
| SUNCOR ENERGY INC. | Director/Board Member | 2023-08-31 |
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Active
Inactive
Listed companies
Private companies
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
| Private companies | 28 |
|---|---|
International Uranium Corp.
International Uranium Corp. Other Metals/MineralsNon-Energy Minerals Explores and produces uranium and vanadium deposits | Non-Energy Minerals |
Suncor Energy, Inc. /Old/
Suncor Energy, Inc. /Old/ Oil & Gas ProductionEnergy Minerals Explores, extracts and markets crude oil and natural gas | Energy Minerals |
Aber Diamond Corp.
Aber Diamond Corp. CoalEnergy Minerals Explores for and mines for diamonds and other precious metals | Energy Minerals |
Aber Resources Ltd. | |
Ashton Mining of Canada, Inc.
Ashton Mining of Canada, Inc. Other Metals/MineralsNon-Energy Minerals Provides diamond exploration services | Non-Energy Minerals |
Stornoway Diamond Corp.
Stornoway Diamond Corp. Other Metals/MineralsNon-Energy Minerals Engages in the exploration and development of diamond projects | Non-Energy Minerals |
Stornoway Ventures Ltd.
Stornoway Ventures Ltd. Other Metals/MineralsNon-Energy Minerals Explores and mines for diamonds | Non-Energy Minerals |
Lundin Gold, Inc.
Lundin Gold, Inc. Precious MetalsNon-Energy Minerals Explores and develops precious & base metals | Non-Energy Minerals |
Navigator Exploration Corp.
Navigator Exploration Corp. Precious MetalsNon-Energy Minerals Explores for and mines for gold | Non-Energy Minerals |
Lucara Diamond Corp.
Lucara Diamond Corp. Other Metals/MineralsNon-Energy Minerals Explores and mines for diamonds | Non-Energy Minerals |
Kaminak Gold Corp.
Kaminak Gold Corp. Precious MetalsNon-Energy Minerals Operates gold mining projects | Non-Energy Minerals |
North Arrow Minerals, Inc.
North Arrow Minerals, Inc. Other Metals/MineralsNon-Energy Minerals Acquires and explores mineral properties | Non-Energy Minerals |
Dominion Diamond Mines ULC
Dominion Diamond Mines ULC Other Metals/MineralsNon-Energy Minerals Operates surface and underground diamond mine | Non-Energy Minerals |
Westhaven Gold Corp.
Westhaven Gold Corp. Precious MetalsNon-Energy Minerals Engages in the acquisition and exploration of prospective resource properties | Non-Energy Minerals |
Dundee Precious Metals, Inc.
Dundee Precious Metals, Inc. Precious MetalsNon-Energy Minerals Engages in the acquisition, exploration, development and mining of precious metal properties | Non-Energy Minerals |
Cornish Metals, Inc.
Cornish Metals, Inc. Other Metals/MineralsNon-Energy Minerals Explores and mines mineral deposits | Non-Energy Minerals |
Suncor Energy Products, Inc.
Suncor Energy Products, Inc. Oil Refining/MarketingEnergy Minerals Provides petroleum and oil refinery services | Energy Minerals |
University of Toronto
University of Toronto Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Province of Northwest Territories
Province of Northwest Territories Province/StateGovernment Functions as a regional level government authority | Government |
NWT & Nunavut Chamber of Mines
NWT & Nunavut Chamber of Mines Precious MetalsNon-Energy Minerals Provides mineral exploration and development services | Non-Energy Minerals |
Prospectors & Developers Association of Canada
Prospectors & Developers Association of Canada Miscellaneous Commercial ServicesCommercial Services Operates as a mineral exploration & development association | Commercial Services |
University of Toronto Alumni Association | |
Suncor Energy, Inc.
Suncor Energy, Inc. Integrated OilEnergy Minerals Explores and refines oil and gas | Energy Minerals |
Anglo Celtic Exploration Ltd.
Anglo Celtic Exploration Ltd. Other Metals/MineralsNon-Energy Minerals Operates a mining field | Non-Energy Minerals |
Clara Diamond Solutions LP
Clara Diamond Solutions LP Wholesale DistributorsDistribution Services Engages in diamonds trading | Distribution Services |
Tectonic Metals, Inc.
Tectonic Metals, Inc. Precious MetalsNon-Energy Minerals Engages in acquisition, exploration, discovery and development of mineral resources | Non-Energy Minerals |
Natural Diamond Council Ltd.
Natural Diamond Council Ltd. Miscellaneous Commercial ServicesCommercial Services Provides professional, scientific and technical services | Commercial Services |
Dominion Diamond Corp.
Dominion Diamond Corp. Other Metals/MineralsNon-Energy Minerals Operates as a diamond mining company | Non-Energy Minerals |
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