Bunzel B. Bunzel was Isaac's old lab partner from Wizard College. The two did a presentation on the effects of Chloromancy on the environment. Isaac did most of the work, while Bunzel appointed himself as an "idea man." The title meant nothing in the context of the study, but Isaac did not mind working mostly by himself.
After graduating, he got married and used his father-in-law's fortune to start a glamour company. It failed due to not having anyone on staff who actually knew anything about transmogrification.