Large home improvement companies, such as Lowe's, offer installation services with the purchase of exterior lighting from their stores. For smaller companies, the Better Business Bureau provides a directory of business by area and type of business.
The Better Business Bureau lists companies by state or postal code, but also covers areas in Canada and Mexico. A search for outdoor lighting in a local area shows all the businesses related to outdoor lighting within the selected range. The search also suggests popular terms and locations to help increase results. In addition, the BBB has a physical location in all 50 states and Washington, D.C. where information can be obtained in person or by phone.