AppTailors, specialize in delivering high-quality mobile and web applications leveraging a variety of technical tools. Their team has leading experience in Flutter and recognizes the benefits of using the right tool for the right project. Their remote based team builds digital products from start to finish - offering design consulting, tools and resources to companies in a variety industries and sizes - to deliver beautifully built applications in a way that's fast, functional and easily maintained.
Tatar on Rails is just a group of people passionate about Ruby on Rails apps and customer experience. With developers/designers/QA from Russia, USA, Pakistan and Thailand, it looks like they can call themselves an international company. They focus on customer experience. Really care about timeline, budget and Management.
Upstack works with fast growing companies to help them harness remote talent to grow their team and get their product to market faster. They have a fast growing network of the top technical talent covering the most in demand skills including Node.JS, Angular, React, iOS, Android, RoR and Python. They are passionate about building distributed teams and don't let location limit the talent they access to build awesome products.