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.

Currency in USD	2025
Operating Income	1.02 Billion
Income Before Tax	661.00 Million
Income Tax Expense	-149 Million
Net Income	810.00 Million
Eps	3.15
Epsdiluted	3.14
Weighted Average Shs Out	257.00 Million
Weighted Average Shs Out Dil	257.80 Million
Research And Development Expenses	N/A
Selling General And Administrative Expenses	N/A
Depreciation And Amortization	846.00 Million
Interest Expense	512.00 Million
Interest Income	N/A
Net Interest Income	N/A
Premiums Earned	N/A
Policyholder Benefits	N/A
Gross Profit	3.74 Billion
Ebitda	1.87 Billion

Alliant Energy Corporation Annual Reports (10-K)