- Tønjum Invest AS (investments and holding company)
- Trygve Tønjum Import AS – Import of fruit, vegetables and berries
www.tonjum.no - MindeProsjekt AS –Real estate development
www.mindeprosjekt.no - Eikedalen Skisenter AS – ski resort
www.eikedalen.no - Trygve Tønjum AS – Real estate and investments
- Auberge du Roua, France (hotel)
www.aubergeduroua.com - Flow Control Norway AS (valves specialists) *
www.flowcontrol.no - Prosessmetall AS (supplier of advanced steel materials) *
www.prosessmetall.no
*) Part-ownership