Ameren Corporation is a St. Louis-based energy company that powers the quality of life for 2.4 million electric customers and more than 900,000 natural gas customers in a 64,000-square-mile area across Missouri and Illinois. Ameren's primary business segments include Ameren Missouri and Ameren Illinois. They are committed to providing safe, reliable, and affordable energy while transitioning to cleaner energy sources.
The headquarters houses key corporate functions including executive leadership, strategic planning, financial operations, legal, human resources, and regulatory affairs for the entire Ameren group.
A modern office complex designed to support a large workforce, likely incorporating energy-efficient technologies reflecting the company's industry. It serves as a visible landmark representing a major utility provider in the region.
The work culture at Ameren HQ is typically professional, emphasizing safety, operational excellence, customer service, community involvement, and a growing focus on sustainability and innovation in the energy sector.
The St. Louis headquarters is significant as the command center for a major regional energy provider, critical to the infrastructure and economic vitality of Missouri and Illinois. Decisions made here impact millions of customers and steer the company's strategic direction in a rapidly evolving energy landscape.
Ameren's operations are primarily concentrated within the United States, specifically in its Missouri and Illinois service territories. The company does not have a significant international operational footprint for energy generation or distribution. Its global interactions would mainly involve sourcing equipment, technology, and potentially engaging with international energy markets or research collaborations.
1901 Chouteau Avenue, P.O. Box 66149
St. Louis
Missouri
USA
Address: 300 Liberty St, Collinsville, IL 62234
Serves as the primary operational and administrative hub for Ameren's activities in Illinois, managing local regulatory compliance, community engagement, and infrastructure projects specific to the state.
Address: 310 SW Washington St, Peoria, IL 61602
Ensures reliable energy delivery and responsiveness to customer needs within the central Illinois region, playing a key role in local infrastructure management.
Address: 520 S. Kingshighway, Cape Girardeau, MO 63703
Manages and maintains the electrical grid and addresses customer service requirements for the southeastern part of Ameren Missouri's service area.
Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.
As of April 2025, Ameren' leadership includes:
Ameren has been backed by several prominent investors over the years, including:
Ameren has seen some key executive transitions and appointments recently, notably with Martin J. Lyons, Jr. assuming the CEO role and Warner Baxter moving to Executive Chairman. Chonda J. Nwamu was also appointed as EVP, General Counsel and Secretary.
Discover the tools Ameren uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
Ameren commonly uses the email format of first initial followed by last name. For example, John Doe would likely be jdoe@ameren.com. Other less common formats might exist but this is the most frequently observed.
flast@ameren.com
Format
jdoe@ameren.com
Example
85%
Success rate
PR Newswire • May 7, 2024
Ameren Corporation announced that its Board of Directors declared a quarterly dividend on its common stock of 67 cents per share, payable June 28, 2024, to shareholders of record at the close of business on June 12, 2024....more
Ameren Newsroom • February 23, 2024
Ameren Corporation reported 2023 net income attributable to common shareholders of $1.09 billion, or $4.24 per diluted share, compared to 2022 net income of $1.10 billion, or $4.25 per diluted share. The company also initiated 2024 earnings guidance....more
Ameren Newsroom • January 2, 2024
Effective January 1, 2024, Martin J. Lyons, Jr. assumed the role of president and chief executive officer of Ameren Corporation. Warner L. Baxter, previously chairman, president and CEO, transitioned to the role of executive chairman of Ameren's Board of Directors....more
See where a company’s workforce is located, by country or region.
View past and recent funding rounds with amounts and investors.
Understand company revenue estimates and financial scale.
Track active roles and hiring trends to spot growth signals.
Discover what a company offers—products, platforms, and solutions.
Get the company’s official SIC and NAICS classifications.
Analyze visitor volume, engagement, and top traffic sources.
Explore LinkedIn, Twitter, and other active social profiles.
Identify top competitors based on similar business traits.
Explore companies in depth — from the tech they use to recent funding, hiring trends, and buyer signals — all in one powerful view.
Highperformr AI helps you surface the right accounts and enrich your CRM with verified company and contact insights, so your teams can prioritize and engage faster.
Thousands of companies, including Ameren, are just a search away.