Residential Construction, Commercial Construction, Dwelling House / Mansion Construction, Industrial Construction, Heavy Civil Construction, Power Engineering Construction, Sport Facilities Construction, Residential Modular Construction, Steel Building Construction, Prefabricated Construction, Earthworks, Demolition, Garbage Disposal, 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, Gas Equipment Installation, Electrical Work / Indoor, Electrical Work / Outdoor, Lighting Systems, Renewable Energy Supply / Installations, 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, Rolled Flooring Installation, Laminate Flooring Installation, Special-Purpose Flooring Installation, Glass Floor Installation, Raised Floor Installation, Hardwood / Parquet Flooring, Natural Stone Flooring, Ceramic Tile Flooring, Underfloor Heating Systems, Self-Leveling Floors, Floor Screeding (Cement-Sand), Terrazzo Mosaic Flooring, Natural Stone Floor Sanding / Polishing, Wooden Floor Sanding / Polishing, Terrace Decking, Dropped / False Ceiling Installation, Stretch Ceiling Installation, Ventilated Facades Installation, Facade Glazing / Curtain Walls, Stone Facing, Aluminum Composite Panel Facing, Siding, Drywall Installation, Mosaic Making, Wooden Stairs, Metal Stairs, Concrete Stairs Construction, Natural Stone Stairs, Glass Stairs, Modular Stairs Installation, Modular Railing Installation, Metal Work, Electric Welding, Fireplace Construction, De-Icing Systems / Solutions, Residential Renovation / Finishing, Commercial Building Renovation / Finishing, Industrial / Heavy Civil Facilities Renovation / Finishing, 03.04. Residential / Commercial and Industrial Buildings, Category 3 (03.04)

High-Rise Construction, Residential Construction, Commercial Construction, Industrial Construction, Heavy Civil Construction, Sport Facilities Construction, Industrial / Commercial Modular Construction, Residential Modular Construction, Steel Building Construction, Prefabricated Construction, Special-Purpose Flooring Installation, Self-Leveling Floors, Metal Work

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)