I can only speak from my own individual experience with one such company (Readybytes). It was, and still is - great. I believe it all sums up to the personality

I can only speak from my own individual experience with one such company (Readybytes). It was, and still is - great. I believe it all sums up to the personality and leadership of the CEO, which in this case assumes total responsibility and demands high dedication from his employees, which he personally picks one by one. My projects are for PHP web applications and we continue to develop it together. By "together" I don't mean it's a partnership, but that the ideas come many times from the developers themselves. I find it enriching. I would also suggest anyone who wants to work with an agency abroad on a large scale project to simply go there, meet the people, sit and work with them in the same room, dine together, participate in social events etc. Not only does it create bonds, but it improves the communication at all levels for the benefit of all sides