Compilation and Forecasting Gig

I have a consulting client who will do about $50MM in sales this year and hopes to be at $100MM within 3 years. They want to better understand their current financials, and then project out where they will need to invest operationally to support future growth. Assume they have a lot of data that's reasonably well-organized. This company does brokerage-style services, so their cost structure looks like a services company and they make money on the margin between connecting buyers and sellers.