Steinar Sønsteby

Chief Executive Officer at ATEA ASA

Net worth: 2 M $ as of 2026-09-29

64 year

52 connections

Technology Services

Consumer Services

Utilities

Profile

Steinar Sønsteby is currently Chief Executive Officer at Atea ASA since 2014.
He is Chairman at Fjordkraft AS and Chairman at Elmera Group ASA since 2021.
Former positions include Chief Executive Officer at Atea AS (Norway), Chief Executive Officer at Skrivervik Data AS from 1989 to 1997, Managing Director at Atea Sverige AB from 2000 to 2002, Managing Director at Atea A from 2025 to 2026, Chief Executive & Operating Officer at Ementor ASA, Chief Executive & Operating Officer at Merkantildata ASA, and Section Manager at NPC Civil AS.
Education includes graduate studies at the University of Utah, and undergraduate studies at the University of Oslo and BI Norwegian Business School.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
ATEA ASA 0.11%	2026-03-16	125,230 ( 0.11% )	2 M $	2026-09-29
ELMERA GROUP ASA 0.02%	2025-09-01	22,721 ( 0.02% )	107 356 $	2026-09-29

Steinar Sønsteby active positions

Companies	Position	Start
ATEA ASA	Chief Executive Officer	2014-01-30
ELMERA GROUP ASA	Chairman	2021-04-20
Fjordkraft AS	Chairman	-

All active positions of Steinar Sønsteby

Former positions of Steinar Sønsteby

Companies	Position	End
Atea A/S Atea A/S Information Technology ServicesTechnology Services Provides information technology infrastructure services	Chief Executive Officer	2026-03-01
Atea AS (Norway) Atea AS (Norway) Information Technology ServicesTechnology Services Provides information technology and infrastructure services	Chief Executive Officer	2011-12-31
Atea Sverige AB Atea Sverige AB Data Processing ServicesTechnology Services Supplies IT infrastructure	Chief Executive Officer	2001-12-31
Skrivervik Data AS Skrivervik Data AS Information Technology ServicesTechnology Services Provides software and computer services	Chief Executive Officer	1996-12-31
Merkantildata ASA Merkantildata ASA Information Technology ServicesTechnology Services Provides IT consulting services	Chief Executive Officer	-

See the detail of Steinar Sønsteby's experience

Education of Steinar Sønsteby

Experiences
Positions held

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Private companies

See the detail of Steinar Sønsteby's experience

Connections

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Members of the board

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Linked companies

Private companies	13
Ementor ASA Ementor ASA Information Technology ServicesTechnology Services Provides computer systems integration services and distributes hardware and software products	Technology Services
Skrivervik Data AS Skrivervik Data AS Information Technology ServicesTechnology Services Provides software and computer services	Technology Services
Merkantildata ASA Merkantildata ASA Information Technology ServicesTechnology Services Provides IT consulting services	Technology Services
University of Utah University of Utah Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Atea Sverige AB Atea Sverige AB Data Processing ServicesTechnology Services Supplies IT infrastructure	Technology Services
Fjordkraft AS
University of Oslo University of Oslo Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
BI Norwegian Business School BI Norwegian Business School Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Atea ASA Atea ASA Information Technology ServicesTechnology Services Operates as a holding company whose subsidiaries provides IT infrastructure and related services & wholesales hardware products	Technology Services
Atea A/S Atea A/S Information Technology ServicesTechnology Services Provides information technology infrastructure services	Technology Services
Atea AS (Norway) Atea AS (Norway) Information Technology ServicesTechnology Services Provides information technology and infrastructure services	Technology Services
Elmera Group ASA Elmera Group ASA Electric UtilitiesUtilities Supplies electricity	Utilities
NPC Civil AS