EPDM Roofing Manufacturers 

Carlisle SynTec - Fully-adhered, ballasted, and mechanically attached systems. Also makes an ENERGY STAR®-qualified white EPDM material.

Commercial Innovations, Inc. - Fully-adhered and mechanically attached systems.

Firestone Building Products - Fully-adhered, ballasted, and mechanically attached systems. They also have an ENERGY STAR®-qualified white EPDM membrane.

GenFlex - Fully-adhered, ballasted, and mechanically attached systems. Also have white EPDM.

Johns Manville, Inc. - Fully-adhered, ballasted, and mechanically attached systems.

Mule-Hide Products Co., Inc. - Fully-adhered, ballasted, and mechanically attached systems. Also have white EPDM.

Versico - Fully-adhered, ballasted, and mechanically attached systems. Also have white EPDM.

Water Tight Technologies - EPDM for various applications. Seem to focus on residential projects.