ComPDFKit
ComPDFKit enable developers to integrate PDF Annotations and Format Conversion, Digital Signature, Smart Forms, OCR, Redaction, and more in to their applications on Windows, macOS, iOS, Android, and the web through their PDF SDKs. Their aim is to offer the most comprehensive library to shorten the project development cycle and to continuously improve their SDK products to meet developer's future requirements as they change and projects evolve.
Extreme Optimization
Extreme Optimization was founded in 2003 with the goal of bringing numerical computing to the .NET platform. Their Numerical Libraries were designed and built around the principles of robustness, ease of use, extensibility and performance. They are a Microsoft Visual Studio Industry Partner.
THBComponentware
THBComponentware is a privately owned company dedicated to the developer community since its inception in 1998. Its client base includes hundreds of developers from all over the world. The company develops .NET components, ActiveX controls and COM objects for professional Windows developers. The products are designed either for the .NET platform or for Visual Basic, Visual C++ and MSAccess. THBComponentWare's high-quality, timesaving components help you deliver your application on time, and make your job easier.