Where do you go to see if you missed out on getting all of you 401K money, or from your profit sharing plan?

Answer 1

You should contact the plan administrator, which is normally a brokerage, fund or some trustee that actually provided all the services related to your plan. You would have been receiving atleast quarterly statements from the administrator (where the 401k money was invested).

Answer 2

Check with the HR department at your former employer. You should receive a monthly or quarterly statment if you have a 401K balance.