|#||Primary?||Code||NAICS Code's Description||"Buy Green"? (1)||Small? (2)|
|1||Yes||238220||Plumbing, Heating, and Air-Conditioning Contractors||No|
|2||238210||Electrical Contractors and Other Wiring Installation Contractors||No|
|3||423720||Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers||Yes|
|4||811310||Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance||No|
(1) By entering Yes for "Buy Green", the firm asserts that it obeys EPA guidelines for environmental friendliness for this NAICS code. Note, EPA guidelines do not exist for every NAICS
(2) If Yes, the firm's revenues/number of employees do not exceed the NAICS code's small business size standard.