Fiske Independent Race Management
FIRM is a multi-sport events organizer acting in the Northeast USA. Provides events, application forms, results, discussion board, and links.
http://firm-racing.com/

Maui Multi Sports Club
Maui non-profit organization sponsors multi sports activities in Hawaii. Running, biking, swimming, canoe, kayak, surfing, and duathlons. Events include the Kings Trail Triathlon.
http://www.mauimultisportsclub.org/

Multisports Promotions Ltd and MSPro Training
Event organisers of triathlons, duathlons, running, cycling, swimming, adventure racing, training camps, and its triathlon academy. MSPro training links athletic training with business and corporate training.
http://www.mspro.co.uk/

MultiSportsCanada.com
Sponsors of a series of multisport events held throughout Canada with various awards and prizes. Site provides general information, points system, events listing.
http://www.multisportscanada.com/

Triathlon and Multi Sport Resource
Results, news, archives, and links.
http://members.fortunecity.com/triathltb/thetriathlonandmultisportresourse/index.html