ISEA Business Membership supports the organizations ability to collaboratively expand the development of renewable energy in Illinois.
As a non-profit organization, ISEA does not endorse any for profit business.  These directories are provided as a resource only and consists of businesses that are members of ISEA.

As an affiliate of the Solar Energy Industry Association (SEIA), ISEA has adopted their professional codes of conduct and complaint resolution process (found here) to ensure that consumers can be confident that ISEA Business Members' marketing tactics and work are of the utmost quality.

The residential and commercial installer directories below list companies in alphabetical order, but also allow a search by geographic location. 

All other directories only list companies in alphabetical order.