The S2 Safety & Intelligence Institute
- The S2 Institute is made up of a consortium of instructors from the United States. They are practitioners in their related fields and are considered to be at the forefront of the communities they represent.
- http://www.s2institute.com

CDT-Training.com
- Non-lethal force training for law enforcement, private security, personal and family protection. Features founders profile, FAQ, instructor certification, safety articles, video clips, and related information. Headquarted in Elmwood Park, New Jersey.
- http://www.cdt-training.com/

Modern Warrior
- Martial Arts, civilian self defense and police defensive tactics. Features news and articles.
- http://www.mwarrior.com

Special Operations Combat System
- Specialized training for elite military, and civilian organizations to enhance their professional skills of combat. Includes news, events, links, history and contact information.
- http://bojuka1.tripod.com