Jo Arild Tønnessen

Chairman, JA-TECH HOLDING AS

14 active roles

Jo Arild Tønnessen holds 14 active roles in Norwegian companies registered in Brønnøysundregistrene, including Chairman at JA-TECH HOLDING AS since 2024 and Chairman at F5 HOLDING AS since 2023. Jo Arild Tønnessen is registered as legal owner of ELLIPTIC LABORATORIES ASA (0% share band). 2 earlier roles have ended, the most recent in 2026.

Overview

Active roles

directorships & management

Past roles

historical positions

Dissolved companies

Career timeline

2025 – now
Board of Directors, FAASTECH AS
2025 – now
Chief Executive Officer, EQYTECH AS
2024 – now
Chairman, JA-TECH HOLDING AS
2024 – now
Legal Owner, KONGSBERG GRUPPEN ASA
2024 – now
Chief Executive Officer, RESPIRARE SYSTEMS AS
2024 – 2026
Board of Directors, ROGALAND SIDERI AS
2023 – now
Chief Executive Officer, SANDALEN HOLDING AS
2023 – now
Chairman, F5 HOLDING AS
2023 – now
Board of Directors, DEVITY AS
2022 – now
Legal Owner, AKER HORIZONS ASA
2022 – now
Board of Directors, ROGALAND SIDERLAG
2022 – now
Legal Owner, ITERA ASA
2022 – now
Legal Owner, NYKODE THERAPEUTICS ASA
2021 – now
Legal Owner, ELLIPTIC LABORATORIES ASA
2021 – 2022
Legal Owner, AKER CLEAN HYDROGEN AS
2019 – now
Board of Directors, F5 IT AS

Personal details

Companies & roles

Active roles

14 positions

Company	Role	Period	Ownership	Status
ELLIPTIC LABORATORIES ASA CVR 989750186	OwnerLegal Owner	Since 2021	0%	Active
JA-TECH HOLDING AS CVR 934464672	BoardChairman	Since 2024	—	Active
AKER HORIZONS ASA CVR 925978558	OwnerLegal Owner	Since 2022	0%	Active
ROGALAND SIDERLAG CVR 928877884	BoardBoard of Directors	Since 2022	—	Active
SANDALEN HOLDING AS CVR 930946664	ManagementChief Executive Officer	Since 2023	—	Active
FAASTECH AS CVR 933581276	BoardBoard of Directors	Since 2025	—	Active
KONGSBERG GRUPPEN ASA CVR 943753709	OwnerLegal Owner	Since 2024	0%	Active
ITERA ASA CVR 980250547	OwnerLegal Owner	Since 2022	0%	Active
EQYTECH AS CVR 936164188	ManagementChief Executive Officer	Since 2025	—	Active
F5 HOLDING AS CVR 927716003	BoardChairman	Since 2023	—	Active
RESPIRARE SYSTEMS AS CVR 932755890	ManagementChief Executive Officer	Since 2024	—	Active
F5 IT AS CVR 919534508	BoardBoard of Directors	Since 2019	—	Active
NYKODE THERAPEUTICS ASA CVR 990646066	OwnerLegal Owner	Since 2022	0%	Active
DEVITY AS CVR 929162226	BoardBoard of Directors	Since 2023	—	Active

Historical roles

2 positions

Company	Role	Period	Ownership	Status
AKER CLEAN HYDROGEN AS CVR 926439855	OwnerLegal Owner	2021 – 2022	—	Active
ROGALAND SIDERI AS CVR 933998967	BoardBoard of Directors	2024 – 2026	—	Active

Network

Company network

Active roles

Jo Arild Tønnessen

ELLIPTIC LABORATORIES ASA

Chief Executive Officer

FAASTECH AS

Board of Directors

KONGSBERG GRUPPEN ASA

Chief Executive Officer

F5 HOLDING AS

Chairman

RESPIRARE SYSTEMS AS

Chief Executive Officer

F5 IT AS

Board of Directors

NYKODE THERAPEUTICS ASA

Legal Owner

DEVITY AS

Board of Directors

Past companies

AKER CLEAN HYDROGEN AS ROGALAND SIDERI AS

Co-directors & shared companies

Person	Role	Shared companies	Profile
RH Robert Horne	Legal Owner	1company	View profile
MC Marie Chantal Fabres Scaler	Legal Owner	1company	View profile
OT Ola Tviberg Sandstad	Chief Executive Officer	1company	View profile
MC Mikael Clement	Board of Directors	1company	View profile
SN Svein-Egil Nielsen	Board of Directors	1company	View profile

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