What Rain Tech Inc. does

Rain Tech Inc. designs and manufactures RainSpace underground stormwater detention, retention, and rainwater harvesting storage systems. Founded in 2003 and headquartered in Stanwood, Washington, the company operates as a small private firm with 1-10 employees, serving commercial, institutional, and residential customers across the United States. Its products address Low Impact Development (LID), National Pollutant Discharge Elimination System (NPDES), and Best Management Practices (BMPs) compliance requirements, as well as on-site water storage for irrigation, potable use, drought backup, and fire protection.

The company's core technology is the patented RainSpace chamber system, built from structural high-density polyethylene core tube bundles that form rock-less, modular configurations with a 97% void ratio. The architecture eliminates the need for crushed stone backfill, supports H-20 and H-25 vehicle load ratings, and is engineered to avoid vertical load-bearing components that could collapse under seismic activity or soil subsidence. Systems are custom-designed for each site's shape, slope, and access constraints, including tight, irregular, or hillside locations, and can be installed under parking lots, driveways, fire lanes, sports fields, and landscapes without sacrificing surface utility.

Rain Tech runs a direct, sales-led go-to-market targeting civil engineers, landscape architects, excavation contractors, and property owners. The company collaborates with project stakeholders from inquiry through design and dispatches senior technicians to advise installing crews. Revenue is generated from the sale of custom-engineered chamber hardware packages and design consultation services, with total installed pricing of approximately $6.00-$8.00 per cubic foot of storage positioned as the lowest-cost option against modular plastic crates, plastic arch chambers, and corrugated metal pipe/concrete vault alternatives. Documented customers include Brian Arden Winery, Garden Grove High School (Garden Grove Unified School District), a Napa Valley hillside residence, and a Malibu oceanfront residence, illustrating use cases across wineries, schools, and high-end residential real estate.

Name

Rain Tech Inc.

Legal name

Rain Tech, Inc.

Website

https://raintechh2o.com

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

1–10 employees

Short description

Rain Tech Inc. designs and manufactures the patented RainSpace underground stormwater detention, retention, and rainwater harvesting chamber system, selling direct to civil engineers, contractors, and property owners across commercial, institutional, and residential applications in the United States.

Ownership category

akta.pro rank

Product category

Stormwater Management Systems

NAICS

Plastics Pipe, Pipe Fitting, and Unlaminated Profile Shape Manufacturing (32612)

SIC

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

akta.pro primary industry

Detention, Retention & Storage Systems (Ponds, Tanks, Vaults) (EUANAEAD)

akta.pro secondary industries

Stormwater Collection & Conveyance (Inlets, Catch Basins, Pipes, Channels) (EUANAEAA), Roadway Drainage & Stormwater Works (Culverts, Ditches, Catch Basins) (IMAFAEAG)

Keywords

• Stormwater management systems
• Underground water storage chambers
• Rainwater harvesting solutions
• Stormwater detention systems
• Low impact development products

Headquarters

HQ city

Stanwood

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. RainSpace Chamber Hardware Sales: Sale of proprietary RainSpace stormwater management and water storage chamber systems. The product is custom-engineered for each application and shipped as a complete package including structural core tubes, heavy duty impermeable water containment liner, and sealer. Installation is typically performed by excavation or landscape contractors, though Rain Tech sends senior technicians to advise during installation.
2. Design Services and Installation Supervision: Rain Tech collaborates with engineers, contractors, and property owners to design the optimal system for each site. The company provides design consultation and technical support during installation, including sending senior technicians to advise the installing crew. This professional services component supports hardware sales and ensures proper installation.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels4 records

Core offering

Rain Tech designs and manufactures the patented RainSpace underground stormwater detention, retention, and rainwater harvesting storage chamber system. The product consists of rock-less, modular high-density polyethylene structural core tube bundles that form rectangular chambers with a 97% void ratio, sold as complete custom-engineered packages to commercial/institutional customers and residential property owners for stormwater compliance and water storage. The company also provides design consultation and installation supervision as professional services bundled with hardware sales.

Product overview

Rain Tech Inc. offers a unified product line centered on the RainSpace™ Stormwater Management & Rainwater Storage Chamber System. The core RainSpace™ Chambers are patented, rock-less structural tube bundles that provide underground stormwater detention, retention, and rainwater harvesting storage. The product line splits into two variants: the Commercial Stormwater Management Chambers (for large-scale institutional, municipal, and commercial applications such as schools, shopping centers, and wineries) and the Residential Water Storage Underground Water Tanks (for homeowner rainwater harvesting and water independence). Both variants share the same patented technology—modular structural core tubes with a 97% void ratio that install quickly without rock backfill—and can be used under parking lots, driveways, sports fields, fire lanes, and landscapes. An optional LEED sustainability integration supports commercial installations seeking certification credits. The company sells direct through consultation and design collaboration with engineers and contractors, with no modular software add-ons or separate SaaS components.

Differentiator

Problem solved

Functional benefit

Brands

• RainSpace™: Patented underground stormwater detention, retention and water storage chamber system. Rock-less, modular system used for stormwater management, rainwater harvesting, and compliance with LID and NPDES regulations.

Products and services

• RainSpace Stormwater Management & Rainwater Storage Chamber System
• RainSpace Commercial Stormwater Management Chambers

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators1 record

Recent moves6 records

Expansion highlights3 records

Direct peers

• NDS (NDS Drainage Solutions): NDS supplies a broad line of drainage and stormwater management components, including chamber systems for underground detention. It is a direct competitor to Rain Tech on residential and light-commercial water storage and stormwater projects.
• StormTech (Advanced Drainage Systems): StormTech, owned by Advanced Drainage Systems, is the leading U.S. manufacturer of plastic arch chambers for underground stormwater detention and retention. It competes head-to-head with Rain Tech's RainSpace chambers on the same specifier and contractor customer base, particularly on cost-driven value engineering comparisons.
• Prinsco: Prinsco manufactures HDPE and polypropylene pipe and water management products, including stormwater chambers. It overlaps with Rain Tech on underground water storage and drainage applications using plastic-based chamber technology.
• Infiltrator Water Technologies: Infiltrator manufactures plastic chamber and septic systems for decentralized water management, including underground stormwater chambers. It addresses the same on-site wastewater, detention and rainwater storage use cases as Rain Tech, with overlapping customer segments.
• Brentwood Industries: Brentwood produces StormwateRx and other stormwater chamber and treatment products. It is a direct competitor in underground stormwater storage and is specified by many of the same civil engineering firms that Rain Tech targets.
• CULTEC: CULTEC manufactures plastic stormwater and septic chambers used for underground detention, retention and infiltration. It targets the same civil engineers, contractors and developers that Rain Tech sells to, and competes on installed cost per cubic foot of storage.
• ACF Environmental: ACF Environmental manufactures plastic stormwater management chambers and related products for underground detention and retention. It serves the same engineers, contractors and developers that specify Rain Tech's RainSpace system.

Broad incumbents

• Contech Engineered Solutions: Contech is a large infrastructure products provider offering stormwater management, drainage, pipe and treatment solutions, including plastic and concrete chamber systems. It competes with Rain Tech on stormwater detention/retention but as part of a much broader civil infrastructure portfolio.
• Wavin: Wavin is a global provider of plastic pipe and stormwater management solutions, including underground infiltration and storage systems. It is a broader incumbent competitor offering overlapping chamber products to municipal and commercial customers.
• Oldcastle Infrastructure (CRH): Oldcastle Infrastructure, part of CRH, supplies a wide range of drainage, stormwater and water management products including precast concrete vaults and chambers. It competes with Rain Tech on detention/retention projects where concrete or hybrid systems are specified.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/raintechh2o

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

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 Rain Tech Inc.