Telecommunication and Signaling Systems, 01.05. Power Supply (Internal and External Power Supply and Lighting Networks / Power Supply Systems / Photovoltaic and Wind Power Plants), Category 1 (01.05), 01.06. HVAC / Gas Supply, Category 1 (01.06), 01.08. Water Supply and Drainage / Melioration Systems, Category 1 (01.08), 01.10. Communication Systems (Telecommunication and Signaling Systems / Transmitters / Receivers / Antennas / Amplifiers), Category 1 (01.10), 02.01. Architecture (Except for Reconstruction and Restoration of Objects of Historical and Cultural Value), Category 1 (02.01), 02.04. Residential / Commercial and Industrial Buildings, Category 1 (02.04), 02.05. Power Supply (Internal and External Power Supply and Lighting Networks / Power Supply Systems / Photovoltaic and Wind Power Plants), Category 1 (02.05), 02.06. HVAC / Gas Supply, Category 1 (02.06), 02.08. Water Supply and Drainage / Melioration Systems, Category 1 (02.08), 02.10. Communication Systems (Telecommunication and Signaling Systems / Transmitters / Receivers / Antennas / Amplifiers), Category 1 (02.10), 04.04. Residential / Commercial and Industrial Buildings, Category 1 (04.04)

Heating Systems Installation, Ventilation Systems Installation, Air-Conditioning Installation, Waterproofing, Burglar Alarm Installation, Video Surveillance, Fire Alarm Installation, Fire Suppression Installation, Access Control Systems, Smart House Systems, Intercom Systems / Local Networks

Steel Building Construction, Polycarbonate / Glass Roofing, Ventilated Facades Installation, Facade Glazing / Curtain Walls, Aluminum Composite Panel Facing, Siding, Mosaic Making, Other - Facing, Metal Stairs, Glass Stairs, Modular Railing Installation, Metal Work