WILLIAMS ENVIRONMENTAL SERVICES, INC.

541611 - Administrative Management and General Management Consulting Services; ; 541612 - Human Resources Consulting Services (MANAGEMENT SERVICES-ORGANIZATIONAL DEVELOPMENT AND TRAINING); ; 561110 - Office Administrative Services (DOCUMENT, DATA/RECORD, RETRIEVAL.); ; 561311 - Employment Placement Agencies (EXECUTIVE PLACEMENT SERVICES); ; 561320 - Temporary help services

238990 - All Other Specialty Trade Contractors (SPECIFICALLY: PRE AND POST CONSTRUCTION CLEAN UP); 561720 - Janitorial services

237310 - Highway, Street, and Bridge Construction (SPECIFICALLY: TRAFFIC LANE PAINTING, TEMPORARY AND PERMANENT LANE MARKINGS, RAISED PAVEMENT MARKINGS; 5/15/15 ADD: AIRPORT RUNWAY LINE STRIPING AND PAINTING, ASPHALT PATCHING [HIGHWAY, ROAD, STREET, PUBLIC SIDEWALK], PARKING LOT MARKING AND LINE PAINTING, SIGN ERECTION [HIGHWAY, ROADS, STREET, OR BRIDGE]); 238990 - All Other Specialty Trade Contractors (SPECIFICALLY: ASPHALT COATING AND SEALING, RESIDENTIAL AND COMMERCIAL DRIVEWAY AND PARKING AREA); 332999 - All Other Miscellaneous Fabricated Metal Product Manufacturing (SPECIFICALLY: METAL TRAFFIC SIGNS); 339950 - Sign Manufacturing (SPECIFICALLY: SIGNS AND SIGNBOARDS [EXCEPT PAPER, PAPERBOARD]); 423990 - Other Miscellaneous Durable Goods Merchant Wholesalers (SPECIFICALLY: TRAFFIC SIGNS [EXCEPT ELECTRICAL], TRAFFIC SOUND WALL BARRIERS); 532412 - Construction, Mining, and Forestry Machinery and Equipment Rental and Leasing (SPECIFICALLY: CONSTRUCTION MACHINERY AND EQUIPMENT RENTAL OR LEASING WITHOUT OPERATOR, RENTAL OF SIGN BOARDS, ARROW BOARDS, TRAFFIC SIGNS, TRAFFIC BARRELS, CONCRETE BARRIERS, AND ALL OTHER TRAFFIC MAINTENANCE ITEMS); 561790 - Other Services to Buildings and Dwellings (SPECIFICALLY: POWER WASHING BUILDING EXTERIORS, AND DRIVEWAY CLEANING; SNOW REMOVAL OF COMMERCIAL PARKING LOTS AND DRIVEWAYS); 561990 - All Other Support Services (SPECIFICALLY: MAINTENANCE OF TRAFFIC SERVICES, FLAGGING, TRAFFIC CONTROL SERVICES, TRAFFIC MANAGER, WORK ZONE TRAFFIC CONTROL OPERATIONS-LANE CLOSURES, DETOURS, CRASH CUSHION INSTALLATION)