The current list of signatories, as of October 18th  2016 is:

Advanced Digital Broadcast S.A.

Amino Communications Ltd

Arris

Deutsche Telekom AG

Entropic Communications

Humax Digital

Intel

Irdeto

Kaon

Proximus

Samsung

Sky Deutschland Fernsehen GmbH & Co. KG

Sky Italia Srl

Sky UK

SmartDTV

ST Microelectronics International N.V

Tatung Technology Inc

Technicolor

Texas Instruments

Viasat Satellite Services AB