Governance

As president and CEO, Suzanne Sitherwood is growing Spire to provide increasing value to every shareholder and exceptional service to every customer.

Suzanne oversees all aspects of the company including five natural gas utilities in Missouri, Mississippi and Alabama, a natural gas marketing company and an emerging technologies group. Under her leadership, Spire recently acquired four natural gas utilities serving customers across Missouri, Mississippi and Alabama and launched a natural gas fueling solution. Spire now ranks as the fifth largest, publicly-traded natural gas utility with nearly 1.7 million customers.

Prior to joining Spire as chief executive officer, Suzanne was president of three utilities at AGL Resources serving more than 1.6 million customers. With more than 30 years of experience in the natural gas industry, she has held other various executive positions including gas supply, storage and transportation, construction, engineering and rates and regulatory affairs.

A graduate of Southern College of Technology with a bachelor’s in industrial engineering technology, Suzanne also holds an MBA from Brenau University. She was named one of the “Most Influential Business Women” and “Who’s Who in Energy” by the St. Louis Business Journal, and awarded the Levee Stone award for her commitment to downtown St. Louis. Suzanne believes that being involved in the community is a responsibility and a privilege, which is why she is on the executive committee of the St. Louis Regional Chamber. She recently co-chaired the 2015 United Way Campaign. She also sits on the boards of the Federal Reserve Bank of St. Louis, Civic Progress St. Louis, United Way St. Louis’ Executive Committee and Board and American Gas Association.

Steve Lindsey is executive vice president and chief operating officer for Spire.

Steve spent 23 years in the natural gas utility business at AGL Resources. Most recently he served as president of Atlanta Gas Light, Chattanooga Gas and Florida City Gas and senior vice president of southern operations for AGL Resources.

Steve holds a mechanical engineering degree from Georgia Institute of Technology, and was recently named “Who’s Who in Energy” by the St. Louis Business Journal. In the industry, he serves as a board member of the Southern Gas Association. Carrying on Spire’s tradition of community service, his board service includes the Regional Business Council, Missouri Chamber of Commerce, St. Louis Children’s Hospital, St. Louis Sports Commission, Missouri Energy Development Association and Kansas City Civic Council.

As Spire’s executive vice president and chief financial officer, Steven P. Rasche is responsible for accounting, treasury, investor relations, IT functions and financial reporting and analysis.

Steve gained nearly 30 years of financial management and executive leadership experience in his role as chief financial officer for TLC Vision Corporation. Prior to TLC Vision, he served as senior vice president and chief financial officer of Public Safety Equipment, Inc.

A certified public accountant, Steve earned his degree in accountancy from the University of Missouri – Columbia and his master’s in finance and marketing from the Kellogg School of Management at Northwestern University. Steve was recently named “CFO of the Year” by the St. Louis Business Journal. In true Spire fashion, he is actively involved in the community with leadership roles in several not-for-profit and professional organizations including American Gas Association, St. Louis Equity Fund, Fair St. Louis, University of Missouri’s MBA Advisory Board and the Association for Corporate Growth Inc.

Mark is the senior vice president, chief legal and compliance officer of Spire. In this role he is responsible for advising the board of directors, CEO and senior management on legal matters affecting Spire and its subsidiaries and for the Company’s corporate security, internal auditing, enterprise risk management and business integration functions.

Mark joined Spire as general counsel in 2004. Before joining Spire, Mark gained more than 30 years of experience in the energy industry. He served for 12 years in various executive legal and non-legal roles at NiSource Inc., Columbia Energy Group and New Jersey Resources Corporation. Previously, Mark was in private law practice in Washington, D.C., practicing before the Federal Energy Regulatory Commission and the DC Public Service Commission.

Mark earned his bachelor’s in political science from Syracuse University and his law degree from Georgetown University Law Center. In 2014, Mark was recognized as one of the “Nation’s Most Influential Minority Attorneys” on the Lawyer of Color’s Power List and a "Diverse Business Leader" by the St. Louis Business Journal. He is chair-elect of the American Bar Association’s Infrastructure and Regulated Industries Section, past chair of the American Gas Association’s Legal Committee, a member of the Energy Bar Association, and serves on the advisory boards of the Corporate Counsel Institute at Georgetown University Law Center. He also serves on the boards of Mercy Hospital St. Louis, United Way of Greater Saint Louis, FOCUS St. Louis, Boys & Girls Clubs of Greater St. Louis, and serves as vice chair of Easter Seals Midwest.

Michael Geiselhart is the senior vice president, chief strategy and corporate development officer of Spire. In this role, he is responsible for strategic planning, mergers and acquisitions, and integration of utilities and related businesses acquired as part of the company’s growth strategy. In addition, he leads the optimization of Spire’s gas supply assets, including midstream and upstream projects. Mike also guides the company’s natural gas-related business units, including its natural gas marketing affiliate, Spire Marketing, and its innovation activities, including emerging technology businesses like Spire CNG. Finally, Mike is responsible for human resources, business process improvement and supply chain.

Mike has more than 30 years of experience on strategic transactions and projects, predominantly in the gas/electric utility and cable/telecom industries. Before joining Spire, Mike was chief financial officer for two telecom startups and an executive-in-residence for private equity firms. Previously, he held senior positions in corporate development, finance and regulatory compliance at a national cable operator (now part of Comcast) and as a cost-of-service witness at a major New England electric utility (now part of National Grid). He began his career as a CPA with a Big 4 accounting firm, and subsequently as an M&A advisor at a boutique investment bank.

Mike has a bachelor’s degree in accounting, magna cum laude, from Siena College in Loudonville, New York. He also holds an MBA in finance with honors from the University of North Carolina at Chapel Hill. He was formerly licensed as a CPA in New York.