Icreon is one of the best web app development firms in the country. The company has been in business for 14 years. They build this experience into every project. Famous clients include National Geographic and FOX channels. They have also worked with Columbia University, NYU, PlayBill, Dominos Pizza, and MasterCard. In addition to web app development, the company also specializes in mobile application development and custom software development. They will also do a technology assessment. This provides a health check for all tech systems that are already in place. The company is based out of New York. In fact, this is where they choose to meet most of their clients. They specialize specifically in design for larger companies, but that does not mean that they would not consult with smaller companies as well. The company has been fewtured by several news sources as being one of the best web development firms.