Current SWEMA Members

SWEMA is comprised of several member organizations with an interest in advancing stormwater management through regulatory engagement, strategic collaboration, education and outreach, and technical excellence. Membership in SWEMA is separated into the following tiers:

Manufacturer Membership

Any organization engaged in the manufacture of a product or system designed to reduce the pollutant load associated with stormwater runoff is eligible to petition to become a Manufacturer Member of the Stormwater Equipment Manufacturers Association. Manufacturer Members have voting rights on all association issues.

Associate Membership

Any organization not engaged in the manufacture of a product or system defined as a Manufacturer Member but that is otherwise associated with the industry (supplier, distributor, service provider) is eligible to become an Associate Member of the Stormwater Equipment Manufacturers Association. While this membership is non-voting, your opinions and contributions will be considered in the development of all association issues and you will have influence in the development of any resources.

A list of current member organizations, sorted alphabetically, is provided below.

Advanced Drainage Systems (ADS) is a leading manufacturer of innovative stormwater and onsite wastewater solutions that manages the world’s most precious resource: water. ADS provides superior stormwater drainage and onsite wastewater products used in a wide variety of markets and applications including commercial, residential, infrastructure and agriculture, while delivering unparalleled customer service. Stormwater Quality is part of ADS’s broader mission of managing and protecting water through engineered solutions; such as pipe systems, chambers, and manufactured treatment devices.

Membership Level: Manufacturer Member

Company Website: https://www.adspipe.com/

Company Address: 4024 Green Stripe Lane, Hilliard, OH 43026

Contech Engineered Solutions manufactures civil infrastructure solutions that deliver lasting value to every project. With over a century of experience, Contech has built a comprehensive portfolio that includes bridges and structures, pipe systems, stormwater management, retaining walls, and erosion control solutions. Contech partners with project owners, engineers, and customers to provide regulatory guidance, solution development, design support, and installation assistance. By combining innovative products with technical expertise, Contech helps clients tackle complex infrastructure challenges and build with confidence. Committed to expertise, support, and quality workmanship, Contech continues to advance civil infrastructure solutions that strengthen communities.

In addition to stormwater expertise, Contech offers a wide range of innovative, flexible product solutions engineered to solve your site’s unique challenges and reduce long-term maintenance costs. From traditional BMPs to LID solutions, our ongoing investment in robust laboratory and field evaluations ensures we have a variety of solutions to comply with local regulations so your projects get approved the first time. With our responsive team of stormwater experts, local regulatory expertise and flexible stormwater management solutions, Contech is the trusted partner you can count on for all your stormwater management needs.

Membership Level: Manufacturer Member

Company Website: https://www.conteches.com/

Company Address: 9100 Centre Pointe Drive, West Chester, OH 45069

Imbrium^® Systems is dedicated to protecting Canada’s waterways. Based on our knowledge and experience in the Canadian stormwater industry, we have the ability to provide the most effective stormwater treatment technologies that capture and retain harmful pollutants from urban runoff before it enters our streams, rivers, lakes, and oceans.

Imbrium’s engineered treatment solutions have been third-party tested and verified in accordance with the ISO 14034 Environmental Technology Verification (ETV) protocol to ensure performance in real-world conditions as designed. Our team of highly skilled engineers and partners provide the highest level of service from design to installation and long-term maintenance.

By working with Imbrium and our partners, you can expect superior treatment technology, unparalleled customer service, compliance with local stormwater regulations, and cleaner water.

Membership Level: Manufacturer Member

Company Website: https://www.imbriumsystems.com/

Company Address: 407 Fairview Drive, Whitby, Ontario, L1N 3A9, Canada

 AquaShield™, Inc. delivers high-quality integrated solutions for green infrastructure and development. To meet growing demands, we provide stormwater treatment systems that utilize hydrodynamic separation and advanced filtration technologies to remove pollutants, protect the environment, and restore water quality in rivers, streams, and other bodies of water.

Membership Level: Manufacturer Member

Company Website: https://komline.com/brands/aquashield/

Company Address: 2733 Kanasita Drive, Suite 111, Chattanooga, TN 37343

Membership Level: Manufacturer Member

Company Website: https://oldcastleinfrastructure.com/

Opti is the leading provider of digital adaptive stormwater control solutions. We enhance passive stormwater infrastructure to create an active, optimized system using our cloud-based Continuous Monitoring and Adaptive Control (CMAC) technology. CMAC uses weather forecasts and sensor data to predictively automate storage and flow control across the watershed. We empower our customers and partners, enabling them to secure the sustainability of our communities and natural resources. With our commitment to innovation, we are driving a resilient and brighter future for all. To learn more about us, please visit www.optirtc.com!

Membership Level: Associate Member

Company Website: https://www.optirtc.com/

Company Address: 98 N. Washington St., Suite 210, Boston, MA 02114

StormTrap® offers the industry's best solutions for managing runoff, protecting waterways, and maximizing the use of your property. We are committed to providing cost-effective, customized stormwater management solutions. Whether a project requires detention, retention, treatment, trash removal, or water harvesting, StormTrap has a design that will reduce your footprint, accommodate site constraints, lower overall costs, and meet specific project and regulatory requirements.

Membership Level: Manufacturer Member

Company Website: https://stormtrap.com/

Company Address: 1287 Windham Parkway, Romeoville, IL 60446

Verdantas is a leading consulting firm providing technical and digitally enabled solutions for sustainable development across the environment, water, and energy transition markets. Blending balanced strengths in environmental and engineering expertise, we partner with clients and communities to create comprehensive solutions that contribute to a sustainable future. The Verdantas Flow Labs division (formerly Alden Research Laboratory) is a leading expert in addressing complex flow challenges within the stormwater, nuclear and power utility sectors. Our team comprises specialized engineers and technicians adept at solving a wide array of issues through physical, numerical, and computational fluid dynamics (CFD) modeling.

Verdantas Flow Labs has a wealth of experience collaborating with clients on testing stormwater treatment systems, component qualification, valve performance analysis, fluid-structure interaction analysis, flow system performance testing and analysis, debris transport and impediment testing, wave modeling, and pump performance testing. Our test facilities are equipped to handle a wide range of conditions, including high pressures, high temperatures, and high flows. We utilize a collection of calibrated, state-of-the-art instrumentation and have developed proprietary data collection software to accurately measure test conditions.

Membership Level: Associate Member

Company Website: https://www.verdantas.com/

Company Address: 30 Shrewsbury Street, Holden, MA 01520