[6] The scholar Cas Mudde described Frey as "One of the most influential people in the German post-war extreme right scene" and a "multi-millionaire media czar who owns and publishes several newspapers".

[7] Frey took control of the far right Deutsche Soldaten-Zeitung in 1959, later renamed National Zeitung, and raised the paper’s circulation from 27,500 in 1958 to 131,000 in 1967.

[8][9] In 1967 it used the term desk murderer (Schreibtischtäter) referring to people who support Israel as, in its view, they thereby take the risk to become accomplices in crimes committed there.

Such businesses included Deutsche Reisen, a travel service, and the Deutscher Buchdienst, selling books, medals and flags.

[14] Frey enjoyed good relations with some conservative politicians like Alfred Seidl,[15] interior minister of Bavaria 1977-78, with European far-right and right wing leaders like Jean-Marie Le Pen and Vladimir Zhirinovsky but his relationship with other German far-right leaders was less friendly as they feared his financial power could overwhelm them.