Well, using that time honoured consultant answer: "It depends". What have you done with your 12 or so years post-graduation? Have you gained significant experience in a role or industry? Have you progressed in your chosen career to date? Can you be presented to a client as a successful expert in something? If so, there is no reason why you would not fit (at least in some companies), though your profile may not be the same as the typical post-MBA Consultant-level entry. Who knows - if the firm is looking for someone with specific experience and expertise, you may even get a better offer!Howing said that, not all firms may be prepared to take you on board, and you may not want to work in some where you would be expected to be a fungible commodity (AKA warm body) in a highly leveraged business model.The oldest starter I can remember employing was 42, and he started as a Consultant (made partner in 4 years).