need a pro help to deploy our native mobile app

With the help of a freelancers team, we have developed a native mobile app and a website to run logistics marketplace operations. Its completed and working on beta mode at the moment. There are minor issues to be fixed, nothing major. Our goal is to work with a professional team to have better response time. We are looking for a team or agency to help us deploy our project and help us maintain running it and future development phases.

Deliverables
Logistics marketplace where users search for prices and send&recieve their packages,items or goods with their desired shipping company they choose from in our platform. User can compare prices and pay for the services directly on the platform.