Associates & Partners
WISY AG
Rainwater Management Solutions (RMS) and WISY AG have built a long-standing partnership to deliver advanced rainwater harvesting solutions across North America. WISY, a German manufacturer founded in 1989, is recognized worldwide for its innovative, high-performance filtration technology and complete system components designed for sustainable water reuse.
Through this partnership, RMS serves as the exclusive North American distributor, combining WISY’s proven engineering with local system design, integration, and support expertise.
Together, RMS and WISY bring decades of global experience to North American projects, offering reliable, sustainable solutions tailored to meet regional demands.
This collaboration represents a strong international partnership focused on advancing water conservation through innovative technology and shared expertise across both markets.
Advanced Drainage Systems
Rainwater Management Solutions (RMS) and Advanced Drainage Systems (ADS) have formed a strategic partnership to deliver comprehensive stormwater and rainwater harvesting solutions across North America. ADS, a leading manufacturer of water management products, provides innovative systems that capture, convey, store, and treat stormwater throughout the entire lifecycle of a raindrop.
Through this collaboration, RMS integrates ADS’s infrastructure solutions, such as pipe, chambers, and water quality treatment systems into complete, turnkey water harvesting designs.
By combining ADS’s strengths in large-scale stormwater management with RMS’s expertise in rainwater harvesting and reuse, the partnership delivers end-to-end systems for commercial, industrial, and residential applications.
This partnership represents a unified approach to managing water as a resource, capturing, reusing, and protecting it for long-term environmental and economic benefit.
ARCSA International
Rainwater Management Solutions (RMS) partners with ARCSA International, the leading organization dedicated to advancing rainwater harvesting standards, education, and best practices across North America. Founded in 1994, ARCSA International is a nonprofit organization focused on promoting sustainable rainwater harvesting through advocacy, professional training, and industry collaboration.
Through this partnership, RMS aligns its system design and consulting services with ARCSA International’s standards to ensure safe, effective, and code-compliant systems.
ARCSA International provides critical resources, including professional certifications and the ARCSA/ASPE/ANSI 63 and 78 standards, supporting engineers, designers, and contractors in delivering high-quality rainwater and stormwater systems.
Together, RMS and ARCSA International help elevate industry knowledge, promote sustainable water reuse, and drive wider adoption of reliable rainwater harvesting solutions.
IAPMO
IAPMO, the International Association of Plumbing and Mechanical Officials, is a nonprofit organization that develops and publishes standards focused on plumbing products. Headquartered near Los Angeles, United States, IAPMO develops the Uniform Plumbing Code, used throughout the United States, as well as having voting members around the world. In addition to developing IAPMO standards, IAPMO also offers extensive certification and testing services.
National Society of Professional Engineers
The National Society of Professional Engineers (NSPE) is the recognized voice and advocate of licensed Professional Engineers.
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We Provide Estimated Return on Investment
Commercial rainwater harvesting systems typically require some kind of post-tank filtration and can vary depending on the end-use. Depending upon the degree of supplementing municipal, the upfront cost can come as a shock. RMS can provide an estimated return of investment. This is typically done in 2-10 years – depending on the scale.