Maria E. Villarreal-Byerley

President & Founder

Maria founded Global Water Technology, Inc. in 1990, after spending almost a decade working with her husband to establish one of Chicago’s finest mechanical service companies, Environmental Mechanical Services (Merged with Hill Mechanical Services in 1995). During her time at EMS, Maria perceived demand for an honest, service-oriented water treatment firm in the downtown Chicago area. Her experience running a mechanical service firm gave Maria firsthand knowledge of her future customer’s need for quality water treatment products and services allowing her to maximize customer satisfaction.

Maria was born in Mexico and immigrated with her family to Chicago’s north side to follow her father who worked for Illinois Central Railroad.

Ferex, John_pp John Ferek
Vice President of Operations

John joined GWT in 2002 as a system analyst. With a technical degree from DeVry he quickly climbed the ladder to Account Manager in 2004 and subsequently Director of Operations.

John currently serves as GWT’s VP of Operations, where he oversees service operations, key customer acquisitions, and account maintenance.


Byerley, Mike_ppMichael A. Byerley
Vice President

Michael joined GWT in 2009 as an intern and started full time following his graduation from Northwestern University. As an intern, Michael shadowed GWT’s sales and service team to develop his understanding of the technical side of GWT’s products and services, gain perspective of the water treatment industry, and help create a progressive marketing and growth campaign.

Michael has been responsible for pioneering GWT’s new janitorial, industrial supply, and e-commerce business segments. Michael’s specialty in marketing management and internal development has helped GWT assemble a forward thinking, efficient sales team capable of expanding GWT’s geographic and market reach.

Morgan, Patrick_ppPatrick Morgan
VP of Sales & Marketing

Patrick joined the GWT team in 2013 to lead and advance our sales and marketing department. Patrick has run a publishing company since 1994 and grew his company from one city (Chicago) to 95 US and 32 international cities.

Through implementing a customized relationship database system, Patrick has helped streamline GWT’s sales efforts. His 20 plus years of experience in volume marketing efforts will work to increase GWT’s account base and look to expand its geographical reach.

Morgan, Patrick_ppEdward Modestas
VP of Consulting Services

Edward joined GWT in 2015 as part of partnership with Midwest Products & Consultants. Edward was President and Owner of MPC for over 27 years. He has over 35 years of water treatment experience and holds a B.S. in Chemistry from DePaul University – Chicago. Prior to founding MPC, Edward served as 12 state Area Manager for Garrett Callahan Chemical Company.

In his role, Ed will serve as a member of GWT’s executive team, oversee GWT’s waste treatment business segment, and directly manage former MPC clients.

Morgan, Mike_ppMichael L. Morgan
Senior Account Executive

Michael L. Morgan joined the Global Water Technology team in July 2012 as a Senior Account Executive. Mike brings 23 years of experience working in the Steel, Refinery, Power, and Petrochemical Industries.

Throughout Mike’s career his responsibilities have focused on acquiring new accounts and the sales and service of existing customers. Client applications have included Cooling Towers, Boilers, and Waste Treatment. He is driven to provide his entire client base with comprehensive systems performance and exceptional customer service.

Beaurain, Dan_ppDan Beaurain
Senior Systems Analyst

Dan joined Global Water Technology in 2009 after several years working as a Facility Manager at a company responsible for testing Caterpillar engines. His responsibilities spanned test cell development to complete plant oversight.

Prior to operating this facility, Dan worked for the EPA’s Great Lakes National Program conducting water quality research. Dan graduated from Illinois State University in 2003 with a Bachelor of Science in Environmental Health.

Brigando, Alex_ppAlex Brigando
Senior Systems Analyst

Alex joined the GWT team in 2006 after spending a few years in the consumer service industry. Alex has a passion for customer service and his knowledge of water interaction in mechanical systems is quite extensive.

Alex studied chemistry at College of Dupage and is continuing his education at Moraine Valley College in mechanical engineering. Alex is responsible for servicing many of GWT’s commercial and institutional properties.

Patrick Shaver
Account Executive

Patrick joined Global Water Technology in 2013 as an Account Executive. He has been a chemist in the water treatment industry for over 15 years having worked as a formulator and in new product development before servicing utility and waste water systems across the Midwest.

Patrick’s responsibilities include adding new accounts and servicing existing clients by providing customer-driven solutions for water related issues.

Eddie Ramos
Water Treatment Consultant

Eddie joined GWT in 2006 as a System Analyst, later moving up to a Regional Account Management position. Eddie currently serves as a special project consultant for GWT. Eddie possess an extensive water treatment background having previously worked as a water treatment operator for the Village of Rantoul. Eddie’s strong academic background in chemistry and engineering along with his experience help him achieve consistent solutions for process and domestic water systems.

ANG_0002 r_pp Luigi Sosi
Account Executive

Luigi joined GWT in 2014 as an Account Executive. With a background in small business development Luigi has run small businesses since 2000. Luigi is a 2009 graduate of Western Illinois University with a degree in Marketing and Management also 2013 graduate of Dominican University with a Master of Business Administration degree in International Business.

Luigi is responsible for overseeing existing GWT accounts throughout the Chicagoland area while concentrating on developing new business in Southern Wisconsin, Northern Illinois and the Chicagoland area.”

ANG_0015r_ppScott D. Morgan
Technical Sales Engineer

Scott joined GWT in 2014 as a Technical Sales Engineer. His experience in water treatment is specialized in working the steel, aluminum, and fuel refining industries. Scott is a 2011 graduate of The University of Illinois at Chicago (UIC) with a degree in Chemical Engineering.  Prior to attending UIC, Scott served in the US Army on active duty for 3 years.  He also worked with the Illinois EPA’s Pollution Prevention and Energy Efficiency internship program.

Scott is responsible For overseeing existing GWT accounts throughout Chicago and the suburbs while concentrating on developing new business in Indiana, Southern Illinois and the Chicagoland area.


Alfrro, Jennifer_pp
Renae Schaver
Business Manager

Renae joined the GWT team in 2014. She graduated from Trinity Christian College in 2011 with a Bachelor’s in Exercise Science and a minor in Business Administration and Coaching. Prior to GWT, she worked in the Long Term Care Service Industry as a Survey Coordinator where her responsibilities included meeting and setting up new customers, making sure all customer requests were completed properly, and developing new products and improving existing products.

Renae’s primary responsibilities at GWT are to help effectively and efficiently run the office operations along with delivering superior customer service. She is able to do so by periodically analyzing office processes and implementing new processes in order to meet customer’s needs timely.

Alfrro, Jennifer_pp
Jennifer Alfaro
Accounting Assistant

Jennifer joined GWT’s team in February 2012. Jennifer’s degree in finance and experience in accounting and administrative work help her to efficiently and consistently accomplish her daily responsibilities for GWT’s Engineering Division.

 ANG_0031r_ppJennakah Castaneda
General Office/Accounting Clerk

Jennakah joined GWT’s team in July 2014 and brings with her 8 years of customer service, inside sales, and purchasing coupled with 3 years of general accounting skills. Jennakah’s focus is providing exceptional customer service to ensure all customers are treated with the utmost care and professionalism.