Completion of mobile apps and web

I have nearly completed a project involving iphone and android smart phone apps that interact with a website. I have had a few bad experiences along the way which has meant I now have more than one company completing these works, Some of the people have been great while others have not delivered. However project is close to completion. I need a single company to thoroughly test the system and provide some minor add ons. I would also like to build a hybrid app version to allow acces for windows, blackberry etc.. On completion of this project I have a large new project to commence. I would also like to discuss and get prices from you. Regards Jeremy