Technical Expertise

Minority Owned

Environmentally Responsible

Commitment to Safety


Global Water Technology, Inc. was founded in 1990 to meet a growing demand in the industry for personalized, affordable, and reliable water treatment services. The primary goal was to establish an honest and reputable company that management teams would be proud to partner with. As a result GWT built a strong reputation in the commercial, residential, industrial, hotel, and healthcare markets throughout the Midwestern United States.

GWT’s reputation for superior service and creating cost effective, resource saving, and equipment preserving strategies has allowed for continued growth and expansion throughout the United States and across a wide variety of industries.

Today, Global Water Technology, Inc. is one of the industry’s leaders in water and waste treatment.



Michael A. Byerley

Chairman & Chief Executive Officer

Michael serves as the Chairman of the Board and Chief Executive Officer of Global Water Technology, Inc. (GWT). He is responsible for shaping the company’s vision for sustainable growth and service excellence, while serving as its principal ambassador and strategist in the constantly evolving water technology landscape.

Michael joined GWT in 2009 as a Service and Sales Intern and full-time in 2011 after completing his studies at Northwestern University. Having held a myriad of positions from Account Executive to CEO, Michael, the son of the company’s founder, Maria E. Villarreal-Byerley, became the Company’s sole shareholder in 2016, effectively making the company a multigenerational, minority (Hispanic) owned business.


Michael J. Landers


Michael Landers is a visionary leader with the rare combination of global experience, business savvy, transformation management and creative problem-solving in Fortune 100, entrepreneurial and international environments. He is a sought-after advisor who has helped pioneer “firsts” across many industries, from alternative energy, to customer engagement innovation, to hospitality-based service culture, to national design, construction and facilities programs, to nationally recognized and industry leading data center and network operations center projects. He has won numerous industry awards for team leadership, innovation, corporate social responsibility and his strong work ethic. He is known for his focus on execution, delivery of results and keeping teams motivated to embrace change while operating at the highest possible levels.

Michael proudly serves as President of Global Water Technology, Inc.  In this capacity, Michael directs all business, strategy and operational activities for a privately held, growing organization.  With operations in 26 states currently, and a sustainable growth strategy underway, he focuses on client and team engagement, customer service excellence, efficient and safe operations and a strong culture of service to advance the business.

Senior Leadership Team


Evan Gray

Chief Financial Officer

Patrick Morgan

Chief Sales & Customer Experience Officer


Vince Spaeth

Chief Technology Officer


Carl Cameron

Vice President, Field Operations


Jamie Claus

Technical Director


Tom Armon

Executive Director & Advisory Board Member


Matt Jensen, CWT

Senior Vice President, Central Region

Christopher Olson, CWT

Chief Operating Officer


Kyle J. Rossi, CWT

Vice President, Southwest Region


Scott Olson, CWT

Division President, Lakeland Chemical (Wisconsin)


Leonard Tanel, CWT

Division Vice President, Lakeland Chemical (Wisconsin)


John Ferek

VP of Chicagoland


Daniel Beaurain

Territory Manager, Northwest Indiana & Southwest Michigan


Daniel Conway

Territory Manager, Northern Illinois & Southern Wisconsin


Gerry Dilla, CWT

Territory Manager, Iowa


Paul Gleason

Territory Manager, Central Illinois


Gary Bounin

Senior Territory Representative, Central Indiana & Indianapolis


Alex Wight

Area Manager, City of Chicago


Alan Martinek

Territory Manager, Southwest


GWT tries to find ways to give back to and support the community. We have found that the most successful ways to give back begins with active participation in the community itself. With our participation, we hope to aid in the sustained growth and success of community organizations, business associations, youth programs, and educational institutions.

  • The Building Owners and Managers Association of Chicago
  • The Chief Engineers Association of Chicago
  • The International Union of Operating Engineers I.U.O.E. 399
  • Association of Water Technologists (AWT)
  • Collegiate Level Athletic Scholarships
  • Food and Toy Drives
  • Local Youth Athletic Teams
  • Clean water initiatives
  • Job shadowing/technical training programs
  • Community outreach and educational organizations

Causes GWT Directly Supports:



Maria E. Villarreal-Byerley
Founder, Past President

Global Water Technology, Inc. (GWT) was founded in 1990 by Maria E. Villarreal-Byerley. Previously, Maria worked with her husband, William Byerley, to establish Environmental Mechanical Services (EMS), one of Chicago’s finest HVAC service companies. In the early 90’s EMS merged with Hill Mechanical Services, allowing her the opportunity to begin her own venture. It was while at EMS that she perceived a demand for a new type of company in the water treatment industry. With a handful of experienced industry experts from established companies, she founded GWT on the principles of service, honesty, and partnership. These founding principles have laid a strong foundation for the growth and success of the modern organization.

In 2005, GWT expanded into the facility operations field, establishing its Engineering Services division, known as Global Facility Services (GFS) today.

Maria’s son, Michael, joined GWT in 2009 as a Service and Sales Intern and full-time in 2011 as an Account and Business Development Manager after completing his studies at Northwestern University. He was tasked with organizational modernization and expansion through acquisition, diversification, and development of a modern sales infrastructure. Michel was promoted to Vice President in 2013.

In 2016, Maria retired from GWT and Michael assumed the role of President and become the sole shareholder. Michael remains the only shareholder, affording the company a unique type of autonomy, operational flexibility, and continual reinvestment leading to exponential, stable year over year growth.


Edward A. Modestas
Past President Midwest Products & Consultants acquired by GWT in 2015.


Eric Burgess
Past President and Owner, Superior Water Management acquired by GWT in 2016.


Larry Feldmeier
Past Water Treatment Executive Consultant and Division Manager at PCS Industries Assumed by GWT in 2017


Scott Olson, CWT
Past President and Owner, Lakeland Chemical Specialties, Inc. acquired by GWT in 2019.


Leonard Tanel, CWT
Past VP and Owner, Lakeland Chemical Specialties, Inc. acquired by GWT in 2019.


Michael Jones Sr.
Past President & Owner, Butler Chemical Company, Inc. Acquired in July 2019.


Jack Walker, CWT
Past President and Owner, Water-Tech Specialties, Inc. acquired by GWT in 2020.