Would not "Other Brand" be a better name? Somehow the term "Off Brand" carries a pejorative "smell." I have several different Other Brand cameras, including Pentax, Zeiss Ikon, Busch, Canon, Ricoh, Bronica, Retina, Voigtlander, and Balda.
Nikon is an honorable brand, but Zeiss and Voigtlander are older by many, many years. Pentax with its AsahiFlex and the Pentax SLRs preceded the iconic Nikon F by several years.
I'm not trying to ignite a Flame War, but perhaps a change in name might be considered.