GroupDocs
GroupDocs creates easy to use, comprehensive online document management APIs for .NET, Java and Cloud, as well as a range of Cloud apps that improve document collaboration for organizations of any size. GroupDocs saves developers and end users time and money by offering a complete and powerful set of document management APIs allowing users to view, sign, annotate, compare, convert and assemble documents in a wide variety of formats, including Microsoft Word, Excel, PowerPoint and Visio, as well as Adobe Acrobat PDF and many image formats. Flexible workflows and easy-to-use, customizable user interfaces are part of the package.
DlhSoft
DlhSoft is focused on building high quality and innovative solutions using Microsoft .NET and related technologies for customers worldwide. Thier activity includes designing and developing general purpose software applications, components and tools, and customized software solutions upon request.
Altsoft
Altsoft is a software company that provides solutions for XML publishing, font management and computer graphics. Most of their products are Microsoft .NET based, however they present multiplatform solutions as well. The team consists of motivated, dynamic and highly talented developers, testers and managers. Among them are professionals in computer graphics, specialists in object-oriented programming languages and analysts with strong mathematical background. They always press on developing innovating solutions and learning new technologies.