Looking for an well established company or team mobile and web app development

Hello, I am completely a middle man or a sales or a marketing person. I consult my client and help them to make their digital goal. I am looking for an well established company or a team to outsource my client's projects. It's a pretty good number of clients I have in my network over the globe. Therefore I want to build a faithful relationship with a mobile and web app development company. The one I am looking for should have following things: 1) An office where I can meet at least any one of top management persons. 2) A good team in mobile app development in iOS and Android native 3) A good team for React Native App development 4) A good team for UI/UX development 5) A good team for REST APIs development and backend development 6) A good team for React JS and Angular 4 web apps 7) Must be India based (Kolkata based companies are good as I am currently located in Kolkata but not constrained to it.) 8) The company should use bleeding edge Devops such as GitHub, CI and Docker etc. I assure escrow guarantee and direct client communication (I don't care of stealing clients as they are my super faithful that I can challenge) and also if the company has a good track record and well established I can negotiate clients for upfront advance payment. My payment term is simple lets say you quote $100 I will put 20%-30% to it and I will sell it $120 to $130 and of course it depends on the project value. What I exactly want that some one very reliable and faithful, no game player, punctual and easily reachable through digital medium and physical medium. I assure a lots of works across the globe. Any further lets talk in person. Looking for faithful collaboration. Thanks Dave