Embarcadero Technologies, Inc
Embarcadero is committed to providing the industry’s broadest and deepest set of software tools for developers, DBAs, and architects.
DevJet Software is a Technology Partner of Embarcadero. Documentation Insight Express Edition had been integrated into RAD Studio XE2/XE3.
CnPack
CnPack is a well-known open source organization in the Delphi community. Their products include CnWizards, CnVCL, CVSTracNT and etc. All of them are Open Source and Free.