Energy Mark LLC.
6653 Main Street
Williamsville, NY 14221
EnergyMark Electric & Natural Gas Supply. WNY’s largest private energy supplier. Commercial, Industrial, and Residential users trust EM for savings, strategy & service.
Lime Energy
31A Elk Terminal
Buffalo, NY 14204
Lime Energy provides small businesses with energy efficiency solutions such as LED lighting to reduce electrical usage and improve both their facility and bottom lines. We are the sole contractor for both major utility companies, National Grid and NYSEG, and provide a direct install solution with incentives provided through the utility company.
My Smart House, LLC.
968B Union Road Suite 3
West Seneca, NY 14224
Here at My Smart House, LLC we are very passionate about contributing to a world, which does not depend on power from fossil fuels. Our goal is to educate homeowners to fast-track the implementation of solar technology across the country to preserve our environment and provide an environmentally friendly, sustainable and conflict-free power source. 
National Fuel
6363 Main Street
Williamsville, NY 14221
1-800- 365-3234
National Fuel sells or transports natural gas to more than 740,000 customers in western New York and northwestern Pennsylvania. The company is keenly focused on customer service and the safe and efficient delivery of natural gas. 
National Grid
144 Kensington Avenue
Buffalo, NY 14214
An electricity and natural gas delivery company that connects nearly 7 million customers to vital energy sources through its networks in New York, Massachusetts and Rhode Island. National Grid is transforming its electricity and natural gas networks to support the 21st century digital economy with smarter, cleaner, and more resilient energy solutions.