Adventures in Mid-land
Offers fantasy, science fiction and horror themed games in New York. Includes forums, chat room, FAQ, photos and contact information.

Barking Mad Productions
Commercial event organizer based in Virginia. Features information on upcoming events and reports on completed ones.

Barking Spider Productions
Creators and producers of theater-style live action role-play games. Based in Ft. Myers, FL and staging events throughout Florida, using a variety of genres, time periods and settings.

Black and Noir Productions: Enigma
Company that offers to create custom gift adventures.

Interactivities Ink
Producers of Rules To Live By and other LARP systems. Also provide free live action roleplaying systems.

SYS Productions
New Jersey based theatrical game production company. Focus includes hosting live action events and publishing pen and paper games. Website offers community features such as in-character forums.

Beyond Reality
A LARP group which runs events at Sci-Fi and RPG conventions in the midwest, primarily Missouri.

Mystic Realms
Offers monthly events in multiple game genres in the New Jersey, United States area.

Sabbath Emporium
Specializes in organizing horror and mystery events in the United Kingdom.

Mystery In Mind
Runs live action roleplaying and murder mystery events of various genres throughout the UK.