Greig Seafood is a fish farming group, based in Norway, that specialized in salmon and trout. Co. is the parent company of the Greig Seafood Group. Co. is engaged in the production and sale of seafood, and naturally related activities to the sale of seafood. Co. is predominately engaged in the production of farmed salmon and trout, with a production capacity of around 95,00 tons gutted weight annually. Co. has 100 licences for salmon production and five licences for smolt production. Co. has operations in Finnmark and Rogaland in Norway, British Columbia in Canada, and Shetland (the U.K.).

Leroy Seafood Group is a supplier of seafood. Co.'s primary products are Atlantic salmon and trout. Co. reports within two main segments: Production and Sales and Distribution. The Production segment includes Co.'s activities within production and processing, mainly Atlantic salmon and trout. The subsidiaries in this segment are a main employer along the Norwegian coastline and other areas. The Sales and Distribution segment has a global reach, comprising sales, marketing, product development and distribution of both Co.'s own produced products as well as for external suppliers. Co. is also engaged in nationwide distribution of fresh fish on the Norwegian market.

Marine Harvest is a seafood company engaged in the production of farmed salmon. Co. offers fresh and processed salmon and other processed seafood to customers in 70 countries worldwide. Co. focuses on three principal types of production activities: salmon feed production in Norway, fish farming and primary processing of fish in Norway, Scotland, Canada, Chile, Ireland, and the Faroe Islands, and secondary processing of seafood in Norway, Chile, Ireland, the United States, the United Kingdom, France, Belgium, the Netherlands, Poland, the Czech Republic, Japan, Vietnam, Taiwan, and South Korea.

SalMar is a producer of Atlantic salmon and is integrated from roe and smolt to products and sales. Co. has farming operations in Central and Northern Norway, as well as in Scotland. Co. has operating licences for marinephase fish farms and hatcheries in central Norway and Troms County. Co. has 66 licences for production of farmed Atlantic salmon in Norway: 53 in central Norway (More & Romsdal, South and North Trondelag) and 13 in northern Norway (Troms)