First step, decide if you want to stay in the broad field of science where many consultancies work, i.e., the pharma/biotech/medical devices fields. If so there are certainly some consultancies out there who work with big pharma/biotech companies i.e., McKinsey, BCG. If you do want to stay in this field and put your scientific knowledge to use, you may be better served looking at the niche consultancies covering these industries, i.e., LEK, Bridgehead, PharmaVentures, WoodMacKenzie, Arthur Little, possibly PA Consulting.If you want to move away from science altogether (but seriously think about that, I mean why waste years of work and experience, just cos your pi**ed off with academia?) then you may find it harder to convince the big 4-5 strategy firms, and I would imagine you'd start off right from the bottom and cover every industry.I was in your position about 2 years ago, my top tip would be to get some freelance experience on your CV, I worked voluntarily for a very brief stint doing market research/reoprt writing and now get the occasional well paid freelance job. I'm not going to tell you how to do this, figure it out yourself it's good practice for you and good training for any aspiring consultant as you are after all learning how to attract and retain clients.If your academics are as good as you say and you've got a good PhD and post-doc, you could consider a job in the pharma industry for a year or two first. You'll definitely learn about the industry/business side of things then and will be able to transition out into a consultancy after that. Believe me this is what I decided to do and now I'm getting offers from the big strategy firms I wasn't getting a bite from whilst I was still a post-doc.A final suggestion, have you thought about being an equity analyst covering pharma/biotech for an investment bank or brokerage? Knowledge of the science and a PhD here helps too and there's a lot of recruiting going on here at the moment.