Euforum Holding AS is a Norwegian holding company.
Tinfos is a private Norwegian holding company.
 Its roots dates back to 1875, and has today the head office in Oslo, Norway.
 The firm is one of the oldest companies in its field of activity in Europe.
 Its main products are silicomanganese, High Purity Pig Iron and titanium dioxide.
 The company is structured in 4 different divisions.
 Tinfos AS was sold 15 April 2008 to the French-based manganese company Eramet.
In 2009, Eramet sold the international unit of Tinfos to Holta Invest AS, a Norwegian investment company.
T. K. Brøvig AS is a Norwegian holding company concentrating on bus operation in Vest-Agder.
 The company owns Bussen Trafikkselskap, Sørlandsruta and Vaagsbygdruta.
 The holding company was founded in 1965 by Tørres Kristian Brøvig and now controls about 85% of all bus operations in Vest-Agder.
 In total the corporation has 410 employees, 210 buses and a revenue of NOK 235 million per year.
Alexandra Gamlemshaug Andresen (born 23 July 1996) is a Norwegian heiress, and as of 2016 , the world's youngest billionaire.
 Her net worth is estimated at $1.2 billion (£862 million).
Ganger Rolf ASA was a Norwegian holding company for the Olsen family.
 The company was listed on the Oslo Stock Exchange and had ownership positions in numerous companies primarily within the energy and shipping sectors, but also other areas such as real estate and mass media.
 All investments were made 50/50 with Bonheur.
 Bonheur is in turn controlled by Fred.
 Olsen & Co., a company wholly owned by Anette S. Olsen.
 Ganger Rolf owned 19.51% of Bonheur.
Swix is a Norwegian company producing ski wax, ski poles and sportswear.
 The company is owned by the investment company Ferd AS, and has the head office in Lillehammer.
Laco is a Norwegian holding company that has investments within seafood, shipping and other marine activities.
 The main subsidiaries are Austevoll Havfiske, Bravo Tug, DOF Holding, Mogstein and Møgster Management.
 Through this the company controls DOF, Geo and Austevoll Seafood.
Sucra was a defunct Norwegian holding company that was created in 2001 to own the alcoholic beverage producer and importer Arcus after it had been privatized.
 Sucra's main owners were Tine, Gilde, Norske Potetindustrier and Ekjord.
 Sucra bought 66% of Arcus in 2001 and the rest of the company in 2003.
 In 2005 Sucra and Arcus were sold to the Swedish investment company Ratos.
Ferd is a Norwegian holding company which holds partial ownership in companies within industry and finance as well as a real estate portfolio.
 The company has 37 employees and is owned by Johan H. Andresen and his two daughters Katharina and Alexandra; it was established in 2001.
 The group also has a number of venture and private equity holdings.
Aker ASA is a Norwegian holding company engaged in offshore fishing, construction and engineering.
 The company is listed on Oslo Stock Exchange and is controlled by Kjell Inge Røkke with 66.66% ownership through TRG Holding.
 The corporate headquarters are located in Oslo, Norway.
 The company was established in 2004.
 It takes its name from the former Akers mekaniske Verksted, which was closed in 1982.

Question: What Norwegian heiress, is the daughter of the owner of Norwegian holding company Ferd?
Answer: Alexandra Gamlemshaug Andresen