Telecommunication Technologies LLC Ukraine

Teplocom Holding Russia

Terranova Italy

TMA Data Management Ltd UK

Toshiba Toko Meter Systems Co., Ltd. Japan

Trilliant Inc. USA

TRIOS Ukraine

Underwriters Laboratories (UL) Netherlands

URMET TLC SpA Italy

UTILIA S.p.A. Italy

Valenciana Smart Energy Spain

Vialis France

Viko Elektrik ve Elektronik Turkey

VOLAG System AG Switzerland