I think it's safe to assume that most people who say "pro gear" mean Marshall, Fender, Gibson, and Ampeg. Maybe Ibanez. Most musicians (including bass players) are especially clueless when it comes to high end, boutique, or excellent but lesser known companies.
I've thought about your reply but, honestly, I can't see it being safe at all. I still think it would be best if an applicant ask what gear the band is considering as "Pro".
Instrument wise you missed out Warwick, Peavey, Lakland, MTD, Spector and a slew more available at an average music store. Amps you missed out MarkBass, UA and a lot more well respected labels.
Paul


