Emtec Southern

Emtec Southern (formerly known as T4M-E formed in 2007) is a leading Building Services contractor, delivering comprehensive design, installation, maintenance, and aftercare solutions to clients across the London and the south east of the UK. We are proud to include two specialist divisions under our umbrella: Emtec React (formerly React 4): Experts in Smoke Ventilation design, supply, installation, and maintenance. & Fire protection systems, Sprinklers, water mist, Wet and Dry Risers Lidex: Our dedicated Building Management Systems (BMS), Master Systems Integration (MSI), and energy management division. Emtec Southern is part of The Sauter Group, a Swiss-based global leader in building automation and energy efficiency, with a turnover exceeding €1 billion. In the UK, the group owns several specialist building services companies, collectively generating over £180 million in revenue for 2025.