Alliant Energy Corporation Company Profile
NASDAQ: LNTUtilitiesPower GenerationUSD
At close: Oct 8, 4:00 PM ET · Delayed 15 min
After hours: 65.50 0.00%
Alliant Energy at a glance
Alliant Energy Corporation (NASDAQ: LNT) is a Power Generation company in the Utilities sector headquartered in Madison, WI. Alliant Energy is led by Ms. Lisa M. Barton and employs about 2,948 people. At a market capitalization of $16.98 billion, it is considered a large-cap company.
LNT is a member of the SP500. Its SEC Central Index Key (CIK) is 0000352541, which identifies the company's filings on EDGAR.
Summary generated from market data by MetaCap's automated system. Methodology
What does Alliant Energy do?
Alliant Energy Corporation operates as a utility holding company that provides regulated electric and natural gas services in the United States. It operates through IPL and WPL segments. The company's IPL segment engages primarily in the generation and distribution of electricity and the distribution and transportation of natural gas to retail customers in select markets in Iowa. This segment also sells electricity to wholesale customers in Minnesota, Illinois and Iowa; and generates and distributes steam for two customers in Cedar Rapids, Iowa. Its WPL segment generates and distributes electricity, and distributes and transports natural gas to retail customers in select markets in Wisconsin; and sells electricity to wholesale customers in Wisconsin. It serves retail customers in the farming, agriculture, industrial manufacturing, chemical, packaging, and food industries, as well as wholesale customers comprising municipalities and rural electric cooperatives. In addition, the company owns and operates a short-line rail freight service in Iowa; a Mississippi River barge, rail, and truck freight terminal in Illinois; freight brokerage services; wind turbine blade recycling services; and a rail-served warehouse in Iowa. Further, it holds interests in a natural gas-fired electric generating unit near Sheboygan Falls, Wisconsin; and a wind farm located in Oklahoma. The company was formerly known as Interstate Energy Corp. and changed its name to Alliant Energy Corporation in May 1999. Alliant Energy Corporation is headquartered in Madison, Wisconsin.
Business description based on the company's public filings.
Company information
- Legal name
- Alliant Energy Corporation
- Ticker
- NASDAQ: LNT
- Sector
- Utilities
- Industry
- Power Generation
- CEO
- Ms. Lisa M. Barton
- Employees
- 2,948
- Headquarters
- 4902 North Biltmore Lane, Madison, WI, United States
- Phone
- 608 458 3311
- Website
- alliantenergy.com
- Market cap
- $16.98B
- SEC CIK
- 0000352541
- Latest annual report
- 10-K · Feb 20, 2026
Index membership
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