If you solve an important problem, then you should be on a mission to help people with that problem.
The basic steps are:
* Find people with the problem (email, call, ask for referrals)
* Ask for meetings to discuss the problem, if they have it
* Ask questions to understand the extent of their problem at a greater depth, and how it's impacting them negatively (there is no pitching, you just ask questions)
* Explain what you do and your solution for solving the problem, without going into details that might giveaway what you do. In lieu of how, demonstrate your understanding of the problem, empathize with the person with the problem, and explain what your process looks like for solving it at a high level (every step from the proposal and on)
* Ask if you can send a proposal for solving their problem. The proposal doesn't have to give away your process, although between this and the meeting they should be sufficiently convinced that you're a good candidate to solve the problem.
* Follow up until you get a firm answers
Solving someone's problem isn't about you or your pitch. It's about the other person and their problem and how you can help them.
Approaching from any other angle will be frustrating for you and the prospect because you'll be operating on assumptions, not information you've actually gathered.