What Rainwater Management Solutions does

Rainwater Management Solutions is a privately held, founder-led specialty firm headquartered in Roanoke, Virginia (originally incorporated in Salem, VA as Rain Water System, Inc.) that delivers turnkey rainwater harvesting, graywater reuse, and stormwater management systems to commercial, institutional, industrial, agricultural, and residential customers across North America. The company operates a hybrid model: a direct e-commerce storefront reselling distributed components and an end-to-end design-build professional services practice covering CAD, 3D modeling, system specifications, on-site commissioning, training, and full-service maintenance contracts.

The technical stack rests on three proprietary vectors layered atop an exclusive distribution position: the WISY 4-Step pre-tank filtration product (held under exclusive North American distribution rights since 2007), the GRAYWORKS biological graywater treatment system co-developed with Critical Flow on patented surface-active media, and custom in-house built controllers with telemetry and alarms backed by proprietary tank sizing software. Component supply is anchored by a broad reseller ecosystem (Norwesco, Roth, Snyder, Grundfos, Goulds, Davey, Viqua) and a stormwater partnership with Advanced Drainage Systems. Hardware pricing spans $54–$1,000+ for filters, $477–$1,370+ for UV systems, and $98–$2,562+ for pumps; commercial services are quote-based.

The leadership team is family-anchored and domain-specialist: founder David Crawford (CEO; former ARCSA President, current ARCSA Foundation Chairman, drafter of the first US rainwater harvesting legislation in Virginia in 2001 and the 2002 Virginia graywater code revision, with IAPMO and NSF committee roles) is paired with his son Shawn Crawford (President since 2014). Supporting executives include Benjamin Sojka (EVP Design & Engineering), Jonathan Simmons (fractional CFO since 2015), Chris Quillen (EVP Business Development since 2017), and Megan Ellis (Sr. Sales Director). Distribution is sales-led through content marketing, lunch-and-learns, and presence at Green Build, ASPE, and ARCSA conferences. The company has designed and installed thousands of rainwater systems across North America and operates with a banded 11–50 employee base; a single $500,000 funding round closed on 2017-08-21 is the only disclosed external capital event.

Name

Rainwater Management Solutions

Legal name

Rain Water System, Inc. (now operating as Rainwater Management Solutions)

Website

https://rainwatermanagement.com

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

11–50 employees

Short description

Rainwater Management Solutions is a Virginia-based private firm providing turnkey rainwater harvesting, graywater reuse, and stormwater management systems, combining proprietary technology with exclusive WISY filter distribution for commercial, institutional, industrial, and residential customers across North America.

Ownership category

akta.pro rank

Product category

Water Management Systems (Rainwater Harvesting, Graywater Reuse, and Stormwater Management)

NAICS

Water Supply and Irrigation Systems (22131), Water Supply and Irrigation Systems (221310)

SIC

Water Supply (4941), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Water Systems & Treatment (Pumps/Boilers/Water Heaters/Filtration) (IMAIABAK)

akta.pro secondary industries

Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ), Water, Wastewater & Stormwater Compliance (BPAHAJAJ)

Keywords

• Rainwater harvesting systems
• Graywater reuse systems
• Stormwater management solutions
• Rainwater filtration products
• Water storage tanks

Headquarters

HQ city

Salem

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Supply Chain, Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Hardware Product Sales: Direct e-commerce and project-based sales of rainwater filters, storage tanks, pumps, UV disinfection systems, and accessories. Products range from individual components to complete kits and packaged systems. Pricing per unit/per system.
2. Design-Build and Engineering Services: Professional services revenue from custom rainwater/graywater/stormwater system design, consulting, engineering (CAD, 3D modeling), system specifications, equipment procurement, design-build, and design-assist project delivery for commercial and industrial clients.
3. Installation, Commissioning, and Training: Revenue from on-site startup, commissioning, training services, and full-service maintenance contracts for installed RMS systems. Includes packaged pre-plumbed and skid-mounted labeled systems.
4. GRAYWORKS Graywater Reuse System Sales: Sale of GRAYWORKS modular and scalable graywater reuse systems, including custom configurations and Value Package for subsurface irrigation, to commercial and institutional facilities.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels8 records

Core offering

Rainwater Management Solutions designs, engineers, and supplies turnkey rainwater harvesting, graywater reuse, and stormwater management systems for residential, commercial, industrial, and agricultural customers across North America. The company also operates an e-commerce storefront selling distributed and proprietary components—filters, tanks, pumps, UV systems—and provides design-build, commissioning, and maintenance services. Its proprietary GRAYWORKS line delivers modular biological graywater treatment for commercial and institutional facilities, and the firm holds exclusive North American distribution rights for WISY filters.

Differentiator

Problem solved

Functional benefit

Brands

• GRAYWORKS: RMS's modular and scalable graywater reuse system product line, developed alongside Critical Flow, engineered for commercial and institutional applications including resorts, hotels, university dorms, corporate campuses, and multi-unit residential developments.

Products and services

• GRAYWORKS Graywater Reuse Systems Modular and scalable commercial and institutional graywater reuse system co-developed with Critical Flow, capturing and treating gently used water from bathroom sinks, showers, bathtubs, and laundry for non-potable reuse such as toilet/urinal flushing and irrigation. Treatment train includes self-cleaning pre-filter screening, biological treatment on patented surface-active media, multi-stage automated backwashing filtration, UV disinfection, optional chlorine and dye dosing, and treated-water storage with a packaged booster pump skid.
• Commercial Rainwater Harvesting Systems Turnkey design-build service for commercial and industrial rainwater harvesting, including performance specifications, equipment and system selections, engineering and CAD, full-scale 3D modeling, cost analysis, exclusive tank sizing analysis, pre-plumbed/skid-mounted labeled systems, electrical and control wiring diagrams, onsite startup and training, and full-service maintenance. Supports applications including stormwater management, fire suppression, irrigation and agriculture, fixture flushing, cooling towers, vehicle washing, equipment washing, and laundry.
• Stormwater Management Systems Customized stormwater management solutions delivered with Advanced Drainage Systems (ADS), covering filtration, detention, retention, and rainwater harvesting to reduce runoff and enable reuse for irrigation, toilet flushing, and vehicle or building washing. Includes StormTech Chambers, BayFilter Stormwater Media Filter (WADOE and NJDEP approved), Bay Separator (hydrodynamic debris and pollutant removal), Barracuda Stormwater Separator, and AquaBox underground storage.
• WISY Rainwater Filters Pre-tank rainwater filtration line that RMS exclusively distributes in North America under its 2007 partnership with the German manufacturer WISY. Includes WFF100, WFF150, WFF300, Short WFF300, Stainless-Steel LineAr100, Poly LineAr100, WISY Downspout Filters, Garden Filter Collector, Standpipe Filter, Raincatcher, SlimRain 100 horizontal filter, and WISY smoothing inlets, multifunction overflow devices, and filter inserts (280, 440, 900 microns). Unit pricing ranges from $54 to over $1,000.
• Rainwater Collection Tanks Curated assortment of polyethylene, fiberglass, and metal rainwater storage tanks spanning 165 to 12,000+ gallons for above-ground and below-ground installations, including offerings from Norwesco, Roth, Snyder, Infiltrator, and Den Hartog. Tanks priced per unit based on capacity, with some configurations showing price ranges ($100-$150, $250-$500, $1000-$1250).
• Rainwater Pump Systems Pumping solutions by industry-leading manufacturers (Grundfos, Goulds, Davey) that integrate into rainwater harvesting setups for residential, commercial, and industrial applications. Includes submersible pumps (Goulds GS, Goulds e-GS), multi-stage pumps (Goulds e-SV), self-priming pumps (Goulds Irri-Gator), booster pumps (Grundfos SCALA1 3-45, SCALA1 5-55, SCALA2, SBA 3-45 AW), Davey DynaDrive DD90-11NPT and EvoDrive ED16-40NPT, plus SCALA1 Twin Installation Sets. Unit pricing from $98 to over $2,562.
• RMS UV Disinfection Lights Rainwater Management Solutions-branded ultraviolet disinfection rack-mounted units and replacement bulbs, including the RMS5 12-Volt LP Ultraviolet Light, RMS4 LP-HO 25GPM, 8 GPM and 15 GPM whole-home UV/filtration units with lamp timer or color-screen controllers paired with 10" or 20" sediment and 20" carbon filters (RMS4-R12, RMS4-R12C, RMS4-R22C, RMS5-R12C), and replacement UV bulbs. Unit pricing from $477 to $1,370+, with replacement bulbs from $78 to $106+.
• Design & Consulting Services Professional services for custom rainwater, graywater, and stormwater system design, consulting, engineering (CAD, 3D modeling), system specifications, equipment procurement, design-build, and design-assist project delivery for commercial and industrial clients.
• System Commissioning and Training Services On-site startup, commissioning, training services, and full-service maintenance contracts for installed RMS systems, including packaged pre-plumbed and skid-mounted labeled systems.
• Tank Sizing Analysis Service Free proprietary tank sizing analysis using RMS-developed software that determines optimal rainwater tank size based on roof catchment area, local rainfall data, water usage goals, and cost savings parameters. Available for projects located in the United States.

Quantifiable outcome

• Commercial rainwater harvesting systems typically achieve ROI in 2-10 years depending on scale
• +3 more outcomes

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature6 records

Partnerships

14 partnerships are on record, tiered flagship/core, core, major and minor.

• WISYflagship/coreOEM/ Whitelabel/ Licensing PartnerRMS has been the exclusive North American distributor of WISY filters since 2007. RMS has adopted WISY's 4-Step Process (filters, smoothing inlets, floating filters, overflow devices) as the foundation of its rainwater harvesting system designs. WISY products span vortex (WFF100/150/300), inline, horizontal filters, and downspout filters — sold through RMS's e-commerce storefront and integrated into commercial and residential system designs.
• Advanced Drainage Systems (ADS)coreStrategic or Co-development PartnerRMS partners with ADS to deliver effective stormwater management systems for commercial and industrial needs. By combining expertise from both companies, they deliver innovative stormwater and rainwater solutions including StormTech™ Chambers, BayFilter™, Bay Separator, Barracuda™ Stormwater Separator, and AquaBox underground storage. Co-published the ADS-RMS Stormwater & Rainwater Management Guide.
• Critical Flowflagship/coreStrategic or Co-development PartnerCritical Flow co-developed the GRAYWORKS product line with Rainwater Management Solutions. GRAYWORKS is an industry-leading biological graywater treatment and reuse system with a modular, scalable design that has helped establish the viability of decentralized graywater treatment. Uses patented surface-active media for biological treatment.
• NorwescomajorChannel Partner/ Reseller/ DistributorNorwesco is North America's top manufacturer of rotationally molded polyethylene tanks. RMS resells Norwesco tanks ranging from 120-gallon to 10,000-gallon capacity, including above-ground vertical tanks (black/dark green to inhibit algae) and below-ground cistern/septic tanks suitable for potable and non-potable water.
• RothmajorChannel Partner/ Reseller/ DistributorRMS resells Roth multi-layer below-ground polyethylene water tanks (750, 1060, 1250-gallon capacities) certified for potable use. Roth tanks feature UV-stabilized outer layers to reduce light penetration and algae growth, with HDPE interior lining. RMS designs complete systems incorporating Roth tanks for residential and commercial applications.
• Snyder IndustriesmajorChannel Partner/ Reseller/ DistributorSnyder Industries is a recognized world leader in highly engineered durable products for rainwater harvesting. RMS resells Snyder above-ground water storage tanks (capacities from 200 to 10,000 gallons) constructed of high-density linear polyethylene in opaque dark colors that inhibit algae growth. All Snyder tanks are NSF certified for potable water storage.
• Infiltrator (IM-Series / Infiltrator Potable Water Tanks)minorChannel Partner/ Reseller/ DistributorRMS resells Infiltrator Potable Water Tanks as part of its polyethylene water tank product line, primarily for below-ground applications.
• Den Hartog IndustriesminorChannel Partner/ Reseller/ DistributorRMS resells Den Hartog polyethylene water tanks including large 12,000+ gallon capacity tanks for commercial applications.
• GrundfosmajorChannel Partner/ Reseller/ DistributorRMS resells Grundfos SCALA booster pumps (SCALA1 3-45, SCALA1 5-55, SCALA2) and Grundfos SBA submersible pumps for rainwater harvesting applications.
• Goulds Water TechnologymajorChannel Partner/ Reseller/ DistributorRMS resells Goulds GS and e-GS submersible pumps, e-SV vertical multi-stage pumps, and Irri-Gator self-priming pumps for rainwater harvesting cisterns and various commercial/residential pumping applications.
• Davey Water ProductsminorChannel Partner/ Reseller/ DistributorRMS resells Davey DynaDrive DD90-11NPT and EvoDrive ED16-40NPT pumps for rainwater harvesting systems.
• Viqua (a Trojan Technologies brand)minorChannel Partner/ Reseller/ DistributorRMS resells Viqua UV water disinfection systems including VH200-F10, PRO20, PRO30, PRO50, K Pro, and H+ PRO UV systems for rainwater treatment.
• TinyTimberminorChannel Partner/ Reseller/ DistributorRMS resells TinyTimber wooden water tanks as part of its rainwater storage tank offerings.
• Atlas FiltriminorChannel Partner/ Reseller/ DistributorRMS resells Atlas Filtri DP BIG Mono Filter Housing Kits and FA BIG Series Polypropylene String Wound Cartridges for rainwater filtration systems.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Bushman Tanks: Manufacturer and direct-to-customer seller of polyethylene and corrugated steel rainwater harvesting tanks in the US; overlaps with RMS's residential tank line (Norwesco/Roth/Snyder) and competes for the same DIY and small commercial customers via e-commerce.
• StormTrap: US provider of modular stormwater detention, retention, and harvesting systems for commercial and municipal projects; competes directly with RMS and ADS on integrated stormwater/rainwater solutions for sites that combine detention with reuse.
• Innovative Water Solutions: US designer and installer of commercial and residential rainwater harvesting and reuse systems, with a direct overlap in design-build service delivery and end customers such as commercial buildings, schools, and developers.
• WISY AG: German manufacturer of WISY vortex, inline, and horizontal rainwater filters. Although RMS is WISY's exclusive North American distributor (so the relationship is also a partnership), WISY is the closest comparable in the underlying pre-tank filtration technology that anchors RMS's 4-step system.

Broad incumbents

• Contech Engineered Solutions: Broad US infrastructure products company offering stormwater management, filtration, and water quality solutions; overlaps with RMS's stormwater BMP and rainwater integration work but operates as a much larger, multi-product portfolio incumbent.
• Xylem Inc. Global water technology company spanning transport, treatment, and testing; relevant as an incumbent providing water reuse, treatment, and metering solutions that compete with or complement RMS's GRAYWORKS graywater treatment train for larger commercial and institutional projects.
• NDS (NDS Inc.): US manufacturer of drainage, stormwater, and irrigation products for residential and commercial markets; competes with RMS at the product level (catch basins, filters, storage) in the residential and light-commercial channel where RMS also sells through e-commerce.
• Watts Water Technologies: Publicly traded manufacturer of water quality, conservation, and flow-control products including rainwater and greywater system components; a much broader portfolio incumbent that competes in several of RMS's product categories and the same commercial plumbing specification channel.
• Advanced Drainage Systems (ADS): Publicly traded US leader in stormwater management and drainage products (StormTech chambers, BayFilter, Barracuda). ADS is also an RMS strategic partner for stormwater work, but at scale it competes for the same commercial and industrial projects where RMS offers integrated rainwater and stormwater systems.

Emerging players

• Aqua Recycle: US-focused provider of graywater reuse systems for commercial and institutional facilities; directly comparable to RMS's GRAYWORKS line and a focused emerging competitor in the on-site graywater reuse category that RMS is helping to legitimize.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/RMS_Rainwater

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds1 record

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Rainwater Management Solutions