Design-Assist Corrosion Consulting Construction Equipment Rental & Sales Classified Specialist (C-68) Civil Engineering Chain Link Supplier Chain Link Manufacturer Cement Concrete Contractor (C-31a) Catch Basins Asphalt Paving & Surfacing Contractor (C-3) Asphalt Concrete Patching, Sealing, & Striping Contractor (C3a) Air Conditioning Equipment Supplier & Products Hoists Highway Signs Highway Guardrail Guardrail General Engineering (A) General Engineering & Specialty Contractors (AC) Gas Monitors Fire Protection & Burgular Alarm Product Supplier Fencing Contractor Fence Supplies Fall Protection Fabricated Metals Estimators Erosion Control Material Sales Sign Contractor (C-14) Security Cameras Sealants Safety Equipment Reinforced Steel Contractor (C-41) Project Management PPE Paving Pavement Striping/Marking Contractor Ornamental, Guardrail, & Fencing Contractor (C-32) Ornamental Guardrail & Fencing Supplier Lighting Services/Supplies Ventilation & Air Conditioning Supplier & Services Steel Products Supplier Sound Vibration & Seismic Control General Contractors

Cement Concrete Contractor (C-31a) Asphalt Paving & Surfacing Contractor (C-3) Asphalt Concrete Patching, Sealing, & Striping Contractor (C3a) Sealants Playcourt Surfacing Contractor (C3b) Paving Subcontractors