The founder and main sponsor and developer of the Open Semantic Framework is Structured Dynamics LLC. SD is an innovative development and software company dedicated to data interoperability. SD combines semantic technologies, software platforms, and knowledge-based artificial intelligence methods to tie all manner of information assets together — from text to XML, Web content, spreadsheets and databases. All of SD's technologies are based on open W3C standards and -compliant languages and protocols.

The lead developer of OSF is Frédérick Giasson, SD's CTO. Design and architectural assistance is provided by Mike Bergman, SD's CEO. There are multiple Drupal contributors and OSF developers supporting ongoing efforts.

Financial sponsors include a variety of government, non-profit and private enterprises.