If you're looking for vendors in the KM space, this magazine has compiled a thorough list:
"The KMWorld Buyers Guide is packed with leading vendors offering real solutions to knowledge management dilemmas that will help users gain and maintain control of their enterprise environment.
"There are two ways to access the information in this guide: you may select a vendor name..., linking directly to a detailed page containing information about the specific company, its products, solutions and contact information OR select one (or more) categories from the list on the right for a list of corresponding solution providers.
"Participants in this guide are all cross-indexed. To develop a customized list of solution providers corresponding to your search criteria, select one or more categories from the RESEARCH CENTERS or SOLUTIONS, then click the Search button."
For example, searching the 3 selections below returns 5 matching vendors: