Stephen Mikkelsen

Chief Executive Officer at SIMS LIMITED

Net worth: 3 M $ as of 30/06/2026

Utilities

Energy Minerals

Non-Energy Minerals

Profile

Stephen Mikkelsen is currently Group Chief Executive Officer, Director & MD at Sims Ltd. since 2023, Independent Non-Executive Director at Origin Energy Ltd. starting in 2025, and a Member of Chartered Accountants Australia & New Zealand.
Former roles include Chief Financial Officer at Contact Energy Ltd. from 1999 to 2000, Executive General Manager-Energy Market Operations at AGL Energy Ltd. from 2015 to 2017, and CFO & Executive Officer-Business Development at Snowy Hydro Ltd. from 2001 to 2006.
Education includes undergraduate studies at Massey University.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
SIMS LTD. 0.08%	21/11/2025	161,514 ( 0.08% )	3 M $	30/06/2026
ORIGIN ENERGY LIMITED 0%	05/03/2026	10,000 ( 0% )	76 069 $	30/06/2026

Stephen Mikkelsen active positions

Companies	Position	Start
SIMS LIMITED	Chief Executive Officer	01/10/2023
ORIGIN ENERGY LIMITED	Director/Board Member	18/08/2025
Chartered Accountants Australia & New Zealand Chartered Accountants Australia & New Zealand Miscellaneous Commercial ServicesCommercial Services Operates as an association for charted accountants and provides accounting services	Director/Board Member	-

All active positions of Stephen Mikkelsen

Former positions of Stephen Mikkelsen

Companies	Position	End
AGL ENERGY LIMITED	Director of Finance/CFO	01/11/2012
Snowy Hydro Ltd. Snowy Hydro Ltd. Electric UtilitiesUtilities Provides hydro electric power services	Director of Finance/CFO	01/08/2006
CONTACT ENERGY LIMITED	Director of Finance/CFO	01/01/2000

See the detail of Stephen Mikkelsen's experience

Training of Stephen Mikkelsen

Experiences
Positions held

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Inactive

Listed companies

Private companies

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Connections

1st degree connections

1st degree companies

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Female

Members of the board

Executives

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Linked companies

Private companies	7
Origin Energy Ltd. Origin Energy Ltd. Oil & Gas ProductionEnergy Minerals Provides energy exploration, production, power generation and retailing services	Energy Minerals
Contact Energy Ltd. Contact Energy Ltd. Electric UtilitiesUtilities Produces and distributes electricity from hydro & geothermal stations, and distributes natural gas	Utilities
Sims Ltd. Sims Ltd. SteelNon-Energy Minerals Provides metals and electronics recycling solutions	Non-Energy Minerals
Snowy Hydro Ltd. Snowy Hydro Ltd. Electric UtilitiesUtilities Provides hydro electric power services	Utilities
Massey University Massey University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
AGL Energy Ltd. AGL Energy Ltd. Electric UtilitiesUtilities Generates electricity & gas and provides investment services	Utilities
Chartered Accountants Australia & New Zealand Chartered Accountants Australia & New Zealand Miscellaneous Commercial ServicesCommercial Services Operates as an association for charted accountants and provides accounting services	Commercial Services