When was Alliant Energy founded?

Alliant Energy was founded in 1917 and raised its 1st funding round 82 years after it was founded.

Where is Alliant Energy located?

Alliant Energy is headquartered in Madison, United States. It is registered at Madison, Wisconsin.

Who is the current CEO of Alliant Energy?

Patricia Leonard Kampling and John O Larsen s of Alliant Energy.

How many employees does Alliant Energy have?

As of Aug 31, 2026, the latest employee count at Alliant Energy is 2647.

Is Alliant Energy a funded company?

Alliant Energy is a funded company, having raised an undisclosed amount across 4 funding rounds to date. The company's 1st funding round was a $***** Venture Debt round, raised on Nov 11, 1999.

When was the latest funding round of Alliant Energy?

Alliant Energy's latest funding was a $***** Post IPO round on Oct 15, 2016, with participation from 0 investor.

What is the annual revenue of Alliant Energy?

Annual revenue of Alliant Energy is more than $1B as on Dec 31, 2025

Where does Alliant Energy rank among its competitors?

Alliant Energy ranks 2nd amongst 1536 active competitors, of which 21 are funded. It stands 3rd in terms of total funding among its competitors. The most recent competitor to raise funding was National Grid, which secured $950K in May, 2025.

Who are the top competitors of Alliant Energy?

Alliant Energy's top competitors include National Grid, Exelon and Just Energy. Among them, National Grid secured the most recent funding round in May, 2025.

Alliant Energy - 2026 Company Profile, Team, Funding, Competitors & Financials

Alliant Energy is a public company based in Madison (United States), founded in 1917. It operates as an Electricity and gas distribution services. Alliant Energy has raised an undisclosed amount in funding. The company has 1536 active competitors, including 21 funded and 181 that have exited. Its top competitors include companies like National Grid, Exelon and Just Energy.

Company Details

Alliant Energy offers gas and electricity distribution services. The service caters to both residential and commercial users. Its distribution service is limited to IOWA and Wisconsin area. Alliant Energy sources some of its energy through renewable energy sources such as solar, wind, and hydro. It also offers assistance to its customers to establish solar and wind generation systems at home and connect the same to its grid. In 2022, the company recorded annual revenues of $4.21B and a net profit of $0.66B

Website: www.alliantenergy.com/
Social
Phone Number: +1 **********
Registered Address: Madison, Wisconsin

Key Metrics

Founded Year

1917

Location

Madison, United States

Stage

Public

Latest Funding Round

Post IPO, Oct 15, 2016, $*****

Investors

Silverton Partners & 1 more

Ranked

2^nd among 1536 active competitors

Annual Revenue

$1B+ as on Dec 31, 2025

Employee Count

2,647 as on Aug 31, 2026

Investment & Acquisitions

CellCura & 1 more

Similar Companies

National Grid & 742 more

Exit Details

Public

View Alliant Energy's full profile

Alliant Energy is associated with 2 legal entities given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
ALLIANT ENERGY CORP CIN: 352541 , United States, Active		$1B+ (As on Dec 31, 2025)	-	-
ALLIANT ENERGY CORPORATE SERVICES, INC. CIN: 391914946 , United States, Active	Dec 26, 999	-	2987 (As on Dec 31, 2024)	-

Alliant Energy got listed on Jun 30, 1972.

Click here to take a look at Alliant Energy's IPO in detail

Alliant Energy has raised funding over 4 rounds. Its first funding round was on Nov 11, 1999. Alliant Energy has 2 institutional investors.

Here is the list of recent funding rounds of Alliant Energy:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Oct 15, 2016	1506478	Post IPO	1727792	6884224	2991275	1356808
May 14, 2010	8142855	Grant (prize money)	2055833	5476907	7006183	OSTI
Dec 26, 2002	9471610	Venture Debt	5175131	3087909	4886902	5254813

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View details of Alliant Energy's funding rounds and investors

Alliant Energy's employee count trend

Alliant Energy has 2,647 employees as of Aug 26. Here is Alliant Energy's employee count trend over the years:

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Top competitors of Alliant Energy include National Grid, Exelon and Just Energy. Here is the list of Top 10 competitors of Alliant Energy, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	National Grid 1990, Warwick (United Kingdom), Public	Distributor of natural gas and power	-	BOMI, JAFCO Asia & 2 others	73/100
2nd	Alliant Energy 1917, Madison (United States), Public	Electricity and gas distribution services	-	Silverton Partners, OSTI	73/100
3rd	Exelon 2000, Chicago (United States), Public	Provider of energy services with an electric and natural gas distribution	-	Ideocolab, Integra Holdings & 1 others	69/100
4th	Just Energy 2009, Mississauga (Canada), Acquired	Retail provider of electricity and natural gas commodities	-	Sagard	66/100
5th	NW Natural 1859, Portland (United States), Public	Provider of natural gas distribution and related services	-	-	66/100
6th	Terpel 1968, Bogota (Colombia), Public	Fuel retailing company	-	-	66/100
7th	Petrol Ofisi 1941, Maslak (Turkey), Public	Provider of fuel, lubricants, and related automotive services	-	-	66/100
8th	UGI Corporation 1882, Philadelphia (United States), Public	Energy corporation and LPG distributor	-	-	64/100
9th	Black Hills Corporation 1941, Rapid City (United States), Public	Natural gas and power distribution company	-	-	64/100
10th	SGN 2005, Horley (United Kingdom), Series D	Operator of infrastructure for the distribution of natural gas supplies	$756M	OMERS Private Markets, ADIA & 5 others	63/100