Step 1 is to find a client. Talk to the large and small companies you've worked for, and see if there are any large problems that they haven't been able to sol

Step 1 is to find a client. Talk to the large and small companies you've worked for, and see if there are any large problems that they haven't been able to solve. You only need 1 client to get started, and you can use them to springboard you to more. The demand doesn't matter if you can't find one client. Do this first, and then worry about client 2 after you get client 1.