Alliant Energy Corporation (NASDAQ: LNT) is a U.S. public utility holding company headquartered in Madison, Wisconsin. It provides regulated electricity and natural gas service to approximately 995,000 electric and 425,000 natural gas customers across Iowa and Wisconsin through its two main subsidiaries: Interstate Power and Light Company (IPL) and Wisconsin Power and Light Company (WPL). The company is focused on delivering safe, reliable, and affordable energy while transitioning to cleaner energy sources. Alliant Energy is committed to its customers, communities, and shareholders, investing in infrastructure modernization and renewable energy projects like solar and wind.
Serves as the central hub for corporate strategy, executive leadership, financial operations, regulatory affairs, human resources, and overall management of its utility subsidiaries.
Modern office campus designed to facilitate collaboration and innovation. It may incorporate energy-efficient designs reflecting the company's commitment to sustainability.
The work culture at Alliant Energy's headquarters emphasizes safety, customer focus, community engagement, innovation, and a drive towards a cleaner energy future. It fosters a collaborative environment with a focus on professional development and operational excellence.
The Madison headquarters is pivotal for strategic decision-making that impacts energy delivery, infrastructure investment, and policy for nearly 1.4 million customers in Iowa and Wisconsin. It's the nerve center for the company's transition to renewable energy.
Alliant Energy's operations are primarily focused within the United States, specifically serving communities across Iowa and Wisconsin. While the company may procure equipment, technology, or services from global suppliers, its core business of energy generation, transmission, and distribution is domestic. It does not have significant operational offices or direct service territories outside the U.S.
4902 North Biltmore Lane
Madison
Wisconsin
USA
Address: 200 1st St SE, Cedar Rapids, IA 52401
Manages and supports energy generation, transmission, and distribution infrastructure, as well as customer relations within Alliant Energy's Iowa service territory.
Address: 2600 Dodge St, Dubuque, IA 52003
Ensures reliable energy delivery and provides localized support to customers in the Dubuque area and surrounding communities.
Address: 1225 N Water St, Sheboygan, WI 53081
Supports the energy needs and customer service for WPL customers in the Sheboygan region and contributes to the overall reliability of the Wisconsin grid.
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As of April 2025, Alliant Energy' leadership includes:
Alliant Energy has been backed by several prominent investors over the years, including:
Alliant Energy has seen some key appointments and transitions in its executive team over the past year, strengthening its leadership in critical areas like operations, customer experience, and human resources.
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Alliant Energy primarily uses the email format of [firstinitial][lastname]@alliantenergy.com. Variations such as [firstname][lastname]@alliantenergy.com or [firstname].[lastname]@alliantenergy.com might also be in use for some employees or departments.
firstinitiallastname@alliantenergy.com
Format
jdoe@alliantenergy.com
Example
80%
Success rate
PR Newswire • 2024-05-02
Alliant Energy Corporation announced GAAP earnings per share (EPS) from continuing operations of $0.73 for the first quarter of 2024, compared to $0.74 in 2023. The company reaffirmed its 2024 EPS guidance range of $2.99 to $3.13....more
Alliant Energy News Center • 2024-04-23
Alliant Energy announced plans to build two new solar projects in Sheboygan County, Wisconsin. The Woodview Solar Project and Onion River Solar Project will add nearly 200 megawatts of renewable energy, enough to power approximately 50,000 homes....more
PR Newswire • 2024-02-20
Alliant Energy appointed Christie Mason as Senior Vice President – Human Resources and Ethics & Compliance Officer, effective February 20, 2024. Mason will lead all aspects of the company's human resources and ethics and compliance functions....more
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