Development Team/Agency for On-Demand Service Marketplace App (iOS & Android)

We are looking for an experienced mobile app development agency/team to design and build a complete two-sided service marketplace application for iOS and Android. The project includes customer and service provider flows, UI/UX design in Figma, authentication, provider profiles, service categories, search, availability and booking system, in-app chat, ratings and reviews, Google Maps and live location tracking, Stripe Connect payments and payouts, push notifications, provider verification via third-party API, and a web-based Admin Portal. Preferred stack: Flutter, Firebase/Firestore, Stripe Connect, Google Maps API, and third-party API integrations. We are looking specifically for an established development team/agency, not an individual freelancer. The team should be able to handle UI/UX, mobile development, backend, integrations, QA/testing, and App Store/Google Play deployment. All design files must be maintained in our Figma workspace and all source code in our GitHub repository. We require full access and ownership throughout development. Please include examples of similar marketplace or booking applications your team has developed, your team size, estimated timeline, and fixed-price estimate.