Companies
Alliant Energy
UtilitiesMadison, WisconsinLNT2,948 employees
More about Alliant Energy
Utility holding company that provides electricity and natural gas service in Iowa and Wisconsin.
Revenue
$4.4B
Fiscal 2025, up about 10%
Employees
2,948
As of December 2025
Stock
LNT
Nasdaq
Headquarters
Madison, Wisconsin
CEO
Lisa Barton
Since January 2024
Main businessesInterstate Power and Light (Iowa), Wisconsin Power and Light
Current strategyAdding about 1,600 MW of natural gas, 1,000 MW of storage and 1,300 MW of renewables over five years to serve new data center customers with about 3 GW of contracted peak demand
CompetitorsXcel Energy, WEC Energy Group, MidAmerican Energy
Related companiesWEC Energy GroupXcel Energy
Checked October 11, 2026 · Sources: sec.gov
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