Electricity Suppliers in Illinois

Since Illinois' electricity market was deregulated in the late nineties, multiple Retail Electric Suppliers (RES) have either launched in Illinois, or suppliers in other states have begun to extend their reach to Illinois residents (e.g., Spark Energy, which was founded in Texas). These electricity suppliers are providing less expensive and/or greener electricity alternatives to traditional sources of energy, in contrast with the supply consumers receive by default through ComEd or Ameren. Customers now have the option to receive their electric supply from their utility, or they can switch to a new electricity plan with one of these established alternative retail electric suppliers.

 
Chicago-based BlueStar Energy Solutions is one of the fastest-growing providers of energy services in the United States, repeatedly recognized by Inc. Magazine on its annual Inc. 500 list of fastest-growing companies. Founded in 2002, BlueStar Energy features a blend of electricity supply and demand-side management services.
Competitive electricity rates, flexible solutions and superior customer care position Champion Energy as a top-ranked provider of commercial electric power for thriving businesses in deregulated electric energy markets.
Commerce Energy Group, Inc. is a leading independent U.S. electricity and natural gas marketing company, serving a broad base of residential, small business, commercial and industrial customers located across the U.S. in energy deregulated states.
Energy.ME is a different kind of utility company. We were founded to supply energy to a customer base that ComEd and Ameren don't service well: commercial middle markets. Within that market, we want your business more than the other guys. So instead of applying a bureaucratic one size fits all approach, we approach your business individually and customize a product and pricing that meets your specific needs, so you only pay for what you need. Whether its fixed, index, hybrid, green or a totally customized plan, we have the ability to supply smart, simple, effective electricity solutions for your business. With a flat low overhead business model and superior trading and risk management operations, our goal is simple: put ourselves in a position to provide you the best possible electiricty price.
EverBright Energy is an exclusive agent of Integrys Energy Services. By signing up through EverBright Energy, you will be agreeing to receive power supply from Integrys Energy Services.
GDF SUEZ Brings Clean, Reliable Energy to Local Communities. A proud member of the GDF SUEZ group of companies, GDF SUEZ Energy North America is uniquely positioned to create value for its customers throughout the energy value chain.
Glacial Energy is committed to supplying the best combination of price and service to commercial entities of all scopes and sizes resulting in unmatched value for cost conscious energy consumers.
As one of the largest and fastest growing business-to-business suppliers of electric and natural gas commodity in North America, large and small business owners alike look to Hudson Energy to provide reliability and certainty for their energy purchases in a volatile energy market.
Integrys provides natural gas and electricity to thousands of residential and small business customers through Energy Choice programs across the United States.
MC2 Energy Services has developed a winning formula that makes buying and managing electricity for your business easy and efficient.
Nordic Energy Services, L.L.C. brings its expertise gained working for energy supplier's to your side of the negotiating table. This results in our customers having the lowest energy costs as they relate to their industry's peers.
Spark Energy is an early pioneer in the retail energy business. From our Houston headquarters, we started out in 1999 with the dream of serving newly deregulated energy markets across the country. Over the years, many retail energy providers have come and gone, leaving their customers to fend for themselves. But Spark Energy has successfully weathered everything from hurricanes and financial crisis, to the ups and downs of a very competitive industry. Through it all we have never stopped serving our customers with utmost attention to their needs.

Also of interest to you might be Illinois electric rates.