At Alliant Energy, our purpose is to serve customers and build strong communitiesWe are focused on powering beyond the market challenges of today, while powering what’s next in energy.

Alliant Energy is a component of NASDAQ. Through its utility subsidiaries Interstate Power and Light Company and Wisconsin Power and Light Company, Alliant Energy provides regulated electric and natural gas service to approximately 975,000 electric and approximately 420,000 natural gas customers in the Midwest.

Our corporate headquarters is located in Madison, Wisconsin. An additional general office is in Cedar Rapids, Iowa. We provide inclusive work environments, and are proud to be an Equal Opportunity Employer. We recognize and respect diversity. We appreciate the differences and perspectives a diverse culture brings to the work environment, the company and our customers.

Alliant Energy takes its responsibility as corporate citizen seriously. We are careful stewards of the environment and support the communities in which we do business. We aggressively pursue emerging technologies and safe, sustainable methods of energy production.

Our mission

To deliver the energy solutions and exceptional service that our customers and communities count on – safely, efficiently and responsibly.

Operations at a glance

Number of electric customers
976,985
Number of natural gas customers
419,944
Number of employees
3,375
Operating revenues (year-end 2020)
$3.4 billion
Total assets (year-end 2020) $17.7 billion
Headquarters Madison, Wisconsin 
Service area 54,369 square miles in Iowa and Wisconsin
Electric generation 31 million megawatt-hours per year
Maximum summer peak hour demand 5,496 megawatts
Utility natural gas sold and transported  151,598 thousands of dekatherms

All numbers are approximations.