Tyge Krabbe Filseth was a Norwegian marketing agent, known for co-founding two research institutions related to advertising.

He was a son of Johan Filseth, the 1894 founder and editor-in-chief of newspaper Gudbrandsdølen

Gudbrandsdølen

Gudbrandsdølen was a Norwegian newspaper, published in Lillehammer in Oppland county.Gudbrandsdølen was started on 1 January 1894, after editor-in-chief Johan Filseth had been jettisoned from another newspaper Framgang. After his death in 1927, Jul Sundsvik and Johan's son Kaare Filseth took over....

. His brother Kaare Filseth

Kaare Filseth

Kaare Krabbe Filseth was a Norwegian newspaper editor who was killed during the occupation of Norway by Nazi Germany....

 was the editor-in-chief of Ringerikes Blad

Ringerikes Blad

Ringerikes Blad is a local newspaper published in Hønefoss, Norway. It covers Ringerike, Hole and Jevnaker. It was established in 1845.It has a circulation of 12684, of whom 12227 are subscribers....

from 1938 to his death in 1944. His sister Tove Filseth was a journalist, and was married to Silesian Jewish writer Max Tau

Max Tau

Max Tau was a German-Norwegian writer, editor, and publisher noted for his contribution to promoting literary exchange between Germany and Norway, especially in the context of reconciliation after World War II.-Biography:...

 from May 1944 to his death in 1976 and physician Haakon Natvig from 1988 to her death in 1994. His wife's uncle was Nikolai Astrup

Nikolai Astrup

Nikolai Astrup was a Norwegian painter.-Biography:Astrup was born in Bremanger in Nordfjord, but grew up in Ålhus in Jølster where his father worked as a priest. He was the great-grandson of Nils Astrup, a one-term member of parliament...

.

He graduated from Copenhagen Business School

Copenhagen Business School

Copenhagen Business School, also known as CBS, is situated in Copenhagen, Denmark. With more than 17,000 students and 1,300 staff members, CBS is also one of the largest business schools in Europe. CBS offers a wide range of business-oriented university programmes and a research environment...

 in 1934, and worked in the advertising agencies Fabritius and B.A.B. before being hired at the newly established Norwegian School of Economics and Business Administration in 1936. From 1938 to 1940 he chaired the Institute of Sale and Advertising there. In 1958 he co-founded the Institute of Marketing . It was modelled on the English Institute of Practitioners in Advertising

Institute of Practitioners in Advertising

The Institute of Practitioners in Advertising is the trade body and professional institute for 250 leading agencies in the UK's advertising, media and marketing communications industry, covering the creative, digital, direct marketing, healthcare, media, outdoor, sales promotion and sponsorship...

, and owned by the Norwegian Association of Advertising Agencies. The Institute was incorporated into the Norwegian School of Marketing  in 1989, which was in turn affiliated with the Norwegian School of Management

Norwegian School of Management

BI Norwegian Business School former name BI Norwegian School of Management is the largest business school in Norway and the second largest in all of Europe. BI has in total 6 campuses with the main one located in Oslo.-History:...

from 1992.

Filseth was married and had three sons. He died in September 2002.