Fiske Independent Race Management [more]
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 [more]
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 [more]
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 [more]
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 [more]
Results, news, archives, and links.
http://members.fortunecity.com/triathltb/thetriathlonandmultisportresourse/index.html