Belt Auction

I need to know the top 3 commercial real estate firms in BOSTON?

So a professor gave me this question, and I'm having a little trouble figuring it out. Where can I find out who the top 3 commercial real estate firms in Boston are, by the numbers? where is your source from?

Public Comments

1. i hope this is correct 1. Grubb & Ellis 2. GILES COMMERCIAL REALTY GROUP 3. Cityfeet