High-Rise Construction, Residential Construction, Commercial Construction, Dwelling House / Mansion Construction, Rebuilding / Remodeling, Industrial Construction, Heavy Civil Construction, Hydraulic Engineering Construction, Power Engineering Construction, Highway Construction, Asphalting, Power Line Construction, Water-Supply Construction, Sewage Construction, Industrial / Commercial Modular Construction, Residential Modular Construction, Earthworks, Demolition, Heating Systems Installation, Ventilation Systems Installation, Air-Conditioning Installation, Water Supply / Sewage Work - Indoor / Plumbing, Water Supply / Sewage Work - Outdoor, Melioration Systems, Electrical Work / Indoor, Electrical Work / Outdoor, Lighting Systems, Power Supply Systems Installation, Wind Power Plants, 03.04. Residential / Commercial and Industrial Buildings, Category 1 (03.04), 03.05. Power Supply (Internal and External Power Supply and Lighting Networks / Power Supply Systems / Photovoltaic and Wind Power Plants), Category 1 (03.05), 03.06. HVAC / Gas Supply, Category 1 (03.06), 03.08. Water Supply and Drainage / Melioration Systems, Category 2 (03.08), 03.09. Transportation Structures and Highways (Roads and Railways / Airports / Bridges / Tunnels / Overpasses / Retaining Walls etc.), Category 2 (03.09)

Industrial Construction, Hydraulic Engineering Construction, Sport Facilities Construction, Industrial / Commercial Modular Construction, Residential Modular Construction, Steel Building Construction, Prefabricated Construction, Modular / Prefabricated Construction Other Activities - Manufacturing of portable cabins, Fence / Enclosure Construction, Tower Crane Erection, Escalator Installation, Other - Installation / Erection - , Stone Facing, Stone Processing Machines, Light Construction Equipment / Devices, Concrete Mixers, Construction Trailers, Metal Work, Smithery / Metal Art, Electric Welding, Gas Welding, Artistic Metal Works, Gasoline / Gas Stations Construction, 03.04. Residential / Commercial and Industrial Buildings, Category 3 (03.04)

High-Rise Construction, Residential Construction, Commercial Construction, Dwelling House / Mansion Construction, Rebuilding / Remodeling, Industrial Construction, Heavy Civil Construction, Hydraulic Engineering Construction, Power Engineering Construction, Irrigation / Drainage Construction, Greenhouse Construction, Sport Facilities Construction, Telecommunication Facilities / Network Construction, Highway Construction, Asphalting, Power Line Construction, Water-Supply Construction, Earthworks, Demolition, Drilling Works, Heating Systems Installation, Ventilation Systems Installation, Air-Conditioning Installation, Refrigeration Installation, Water Supply / Sewage Work - Indoor / Plumbing, Water Supply / Sewage Work - Outdoor, Pumping Station Construction, Water Treatment, Natural Gas Supply, Melioration Systems, Electrical Work / Indoor, Electrical Work / Outdoor, Lighting Systems, Renewable Energy Supply / Installations, Wind Power Plants, Waterproofing, Thermal / Heat Insulation, Vapor Sealing, Sound / Vibration Insulation, Sound Absorption / Acoustics, Rolled Roofing, Corrugated Sheet Roofing, Sheet Metal Roofing, Terracotta Tile Roofing, Polycarbonate / Glass Roofing, Bitumen Sheet Roofing, Gutters / Downspouts Installations, Roof De-Icing Systems / Solutions, Green Roofs, Burglar Alarm Installation, Video Surveillance, Fire Alarm Installation, Fire Suppression Installation, Access Control Systems, Smart House Systems, Intercom Systems / Local Networks, Telecommunication and Signaling Systems, Tower Crane Erection, Processing Equipment Erection, Facade Glazing / Curtain Walls, Stone Facing, Aluminum Composite Panel Facing, Siding, Drywall Installation, Scaffolding Rental, Ladders Rental, Scaffolding / Formwork, Mobile Scaffolding / Work Platforms Rental, Engineered Formwork Systems Rental, Heavy Construction Equipment Rental, Excavators, Trucks, Crane Trucks, Bucket / Aerial Lift Trucks, De-Icing Systems / Solutions, Residential Renovation / Finishing, Commercial Building Renovation / Finishing, Industrial / Heavy Civil Facilities Renovation / Finishing, 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 3 (01.10), 03.04. Residential / Commercial and Industrial Buildings, Category 1 (03.04), 03.08. Water Supply and Drainage / Melioration Systems, Category 1 (03.08)

Industrial Construction, Heavy Civil Construction, Hydraulic Engineering Construction, Power Engineering Construction, Irrigation / Drainage Construction, Greenhouse Construction, Industrial / Commercial Modular Construction, Waterproofing, Green Roofs, Other Works / Services

Industrial Construction, Hydraulic Engineering Construction, Tunnel Construction, Bridge Construction, Sport Facilities Construction, Highway Construction, Asphalting, Freight Services, 03.09. Transportation Structures and Highways (Roads and Railways / Airports / Bridges / Tunnels / Overpasses / Retaining Walls etc.), Category 1 (03.09), 04.09. Transportation Structures and Highways (Roads and Railways / Airports / Bridges / Tunnels / Overpasses / Retaining Walls etc.), Category 2 (04.09)