Vessco Holdings was formed in 2018 with the goal of bringing like-minded companies together to create the premier value-added distributor of water and wastewater treatment technology to our Municipal and Industrial customers. Vessco Holdings’ impressive growth continues to expand across the United States from coast to coast.

Vessco Inc

Vessco Inc.

Dick Corbett, CEO
Clark Corbett, President

Vessco, Inc. is a leader in the supply of water and wastewater technology. We are representatives of the best equipment in today’s water treatment world. Our strategy is to deliver a total solution to the municipal and industrial customers we serve, from initial project consultation to on-site field service, and to help ensure the best, most cost-effective and reliable long-term solution to their water treatment challenges.

Locations: Minneapolis, MN and Ames, IA


Jon Harger, Vice President

Mellen specializes in providing process and flow control equipment to municipal and industrial customers in the Midwest and Central U.S.

Locations: Omaha, NE and Kansas City, MO

Dorner Products, Inc.

Tim Ruesch, President
Gary McMahon, Vice President

Dorner Company specializes in providing equipment for water and wastewater treatment plants, power plants, industrial processing facilities and original equipment manufacturers. Our commitment to and our partnership with the industry’s premier manufacturers, as well as a vast selection of valves, actuation, and other fluid process control equipment allow us to provide the best product package to fit your needs.

Locations: Milwaukee, WI


Koester Associates

Mark Koester, President
Peter Radosta, Vice President

Koester represents industry leading manufacturers of water and wastewater treatment and pumping equipment. Covering New York State, Long Island and northern New Jersey, we work with our customers to apply the right solutions for their greatest environmental benefit. Specializing in water and wastewater engineering, operations, maintenance support, sales and service. Koester works with municipalities as a partner with engineering firms, maintenance personnel, engineering consultants, and contractors.

Locations: Syracuse, NY and Kinnelon, NJ

Sherwood Logan

Sherwood Logan and Associates

Bob Fairweather, President
Ed Zalewski, Vice President
Jon Casarotti, Vice President
Pat Foley, Vice President

Sherwood-Logan has grown into one of the premier providers of water and wastewater treatment equipment. Sherwood-Logan has the ability to provide the technology and equipment mandated by the regulatory environment. We represent the manufacturers recognized as the best in the business and provide the value-added technical support service to assure success.

Locations: Annapolis, MD, Langhorne, PA, Richmond, VA, Wilton, CT, South Amboy, NJ

Automatic Systems

Automatic Systems

Bruce Wirth, President
Lane Stewart, Vice President
Travis Moran, General Manager
Ryan Willis, Senior Programmer

Automatic Systems Company is an Industry Leading provider of water, wastewater, and industrial controls with a proven history of innovation and excellence. Our experienced sales staff, programmers, technicians, and project engineers are here to serve you. Automatic Systems provides a full service, in-house panel fabrication facility that can handle your assembly project from beginning to end and our full staff of experienced and knowledgeable field service technicians are available 24/7, 365 days a year.

Locations: Minneapolis, MN and Ames, IA

Kennedy Industries

Mark Hemeyer, President

Kennedy Industries is Michigan’s leading pump, valve, control, and specialty products representative. Our sales engineers, account managers, customer service specialists, and project coordinators ensure the best customer service in the market.

Locations: Wixom, MI and Grand Rapids, MI

Frank A. Olsen Company

Dennis Winslow, President

Frank A. Olsen Company is the source for valves and actuation in Northern California, serving the municipal and industrial markets. Our commitment to excellence in customer sales and support has made us the preeminent leader in our field. We can help with all phases of projects from design, construction to ownership.

Locations: San Francisco metro area (Livermore, CA)

Environmental Improvements, Inc (EI2)

Lyle Milstead, President

Environmental Improvements, Inc. (EI²) is a full-service provider of treatment solutions for the water & wastewater market. At EI² we strive to use our past success as a base for our future achievements. Our diverse staff is comprised of both inside & outside sales specialists with education & experience in such disciplines as engineering and construction management. We are ready to assist you with equipment selection, application, cost estimating & service.

Locations: Austin, TX, Dallas, TX, Houston, TX, and Oklahoma City, OK

Duncan Company

Joe Klick, President

Josh Ralph, Vice President

Duncan Company is a value-added distributor of Valves & Actuators, Instruments & Process Controls, Process Safety Products and Piping Specialties. Since 1909, we have served the Midwestern Industrial market with quality products, excellent customer service and innovative solutions.

Locations: Minneapolis MN and Appleton, WI

Fluid Control Specialties, INC

Robert Whritenour, President

Beau Colton, Vice President Operations

FCS is the source for valves, actuation, sales & service in Florida. Representing the finest municipal and industrial manufacturers, our trained technicians are available for on-site start-up, field service, complete turnkey, and retrofitting.

Locations: Sanford, FL


Rick Kocerha, President/CEO

Gary Prehm, Vice President Process Sales

Brad Gasvoda, Vice President Operations

BL Anderson provides vital process and flow control supplies and service necessary for water treatment facilities to operate at peak efficiency. Our highly trained and knowledgeable staff is dedicated to providing you with the highest quality equipment along with a professional, full-service, training and parts approach.

Locations: Lafayette, IN and West Chester, OH


Timothy A. Tack, President

Peter Lynch, Vice President

Richard Hussey, Vice President

LAI serves the water, wastewater, and stormwater processing markets by offering the finest flow control, pump, and process equipment available.

Locations: Rolling Meadows, IL and Madison, WI