Walther Andreas Tønnessen is a private shareholder. Walther Andreas Tønnessen holds a stake in 1 company, and roles in several others.

Companies Walther Andreas Tønnessen owns

Company	Stake
GREEN-TECHNOLOGIES AS	15.0%

Roles

Styremedlem

3 selskaper

GREEN-TECHNOLOGIES HEAT AS 936459757

GREEN-TECHNOLOGIES PRODUCTION AS 935959292

GREEN-TECHNOLOGIES AS 932615789

Innehaver

1 selskap

MALERFIRMA WALTHER A TØNNESSEN 979188285

Active roles recorded in the Register of Business Enterprises / the Central Coordinating Register

Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 03.10.2026.