http://www.usaca.info/ and
http://www.a-cat.org/A-Class Catamaran Builders
Nacra A2 designed by Melvin and Laundergan
WATERAT designed by Melvin and Laundergan
Boyer Fibrecraft Auscat
Boyer Fibrecraft Flyer
Marstrom
Bimare
Vectorworks
Balance A
MIKAN A-Class Catamaran
Titan
Pulsar
Scheurer Bootswerft AG
Hall Spars (Masts)
Fiberfoam (Masts & Battens)
Unicorn (Home Builder Plans)
Saarberg Masts
A-Class Catamaran Sails & Gear
Glaser Sails
Ullman Sails
Ashby Sails
Goodall Sails
Cocoanut Grove Sails - Representing Landenberger Sails
Elliot Pattison Sails
Kinder Industries (Boat & Blade Covers)
OXOsails
Racer X Sails & Gear