Based on the problem your product is going to solve, decide what the exact tasks for the developers will be, and what technologies, skills, and budget will be required. Further, you can contact the Software development company CodeIT https://codeit.us/ team.
This is exactly the kind of company that can do the exact type of work you require (e.g. web development, software development, etc.).
CodeIT Software development company provides services such as Custom Development , Web Development , Mobile Development and others. I think you can benefit from mutual cooperation with this team