d&a is a leading provider of visual business information solutions, while turning information into knowledge. d&a specialize in structuring industries using their unique taxonomy and proprietary visual platform. d&a's research department collects and analyzes vast amounts of available data, delivering exclusive visualization platforms for various types of customers.

d&a offers software as a service (SaaS), combining deep research and analysis with a web-based visual tool, providing customers with online knowledge portals.

官方网站：www.dainfo.com