Bilenky Tandems: Builders of performance and custom tandems. Product range, standard geometries, and color choices.
Bohemian Bicycles: Traditional custom, hand-crafted tandems and bicycles with specialized lugs and filigree. Detailed photographs are featured.
Da Vinci Designs: Handbuilt tandem bicycles with independent coasting drivetrain, from Colorado, USA. List of features and contact information.
Hollywood Bike: Manufacturer of a variety of single and twin tandem bikes. Thailand.
Love Bike: Makes tandem bicycles and tandem bike child parent, and tandem mountain bikes. USA.
Meridian Bicycle Works: Manufacturer of road, off-road, travel and custom tandems. USA.
Santana Tandems: Makes premium, value, exotic, family, and custom tandems. Includes advice on traveling with a tandem, and a test to see if tandeming is for you.
The Granny Bike, quadcycle-PPV: The Granny Bike is a kit that converts two standard bicycles into a quadcycle. It can be used for, exercise, the physical challanged, recreational cycling, rental, and retirement communities.