Using the companion perks

I'm new to fallout 2d20. I've played a little D&D, ran several cyberpunk red campaigns, and recently found the fallout rpg. Been a huge fan of the series since day 1. But I have a question after my second read through-

Looking at the companion perks, I noticed only dogmeat doesn't have the note that you can't have another companion... so in theory could you have dogmeat AND a mr. Handy as companions? My heart is telling me no... but my body (and Google AI) is telling me yes... any help for a soon to be GM would be appreciated.