Home Energy Sciences, Inc.

NAICS 236118 Residential Remodelers NAICS 236220 Commercial and Institutional Building Construction NAICS 237310 Highway, Street and Bridge Construction NAICS 237310 Sign Erection, Highway, Road, Street or Bridge NAICS 238170 Siding Contractors NAICS 238310 Drywall and Insulation Contractors NAICS 238390 Other Building Finishing Contractors NAICS 423610 Electrical Apparatus and Equipment, Wiring Supplies and Related Equipment Merchant Wholesalers NAICS 423730 Warm Air Heating Equipment Merchant Wholesalers NAICS 423830 Industrial Machinery and Equipment Merchant Wholesalers NAICS 541512 Computer Systems Design Services NAICS 561790 Other Services to Building and Dwellings NAICS 561990 Flagging (i.e., Traffic Control) Services

NAICS 423320: Brick, Stone, and Related Construction Material Merchant Wholesalers; NAICS 423330: Roofing, Siding, and Insulation Material Merchant Wholesalers; NAICS 423390: Other Construction Material Merchant Wholesalers; NAICS 423610: Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers; NAICS 423710: Hardware Merchant Wholesalers; NAICS 423720: Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers; NAICS 423840: Industrial Supplies Merchant Wholesalers; NAICS 424690: Other Chemical and Allied Products Merchant Wholesalers; NAICS 444180: Other Building Material Dealers; NAICS 532412: Construction, Mining, and Forestry Machinery and Equipment Rental and Leasing