Company lists · Data refreshed September 2026

Top 17 Rainwater harvesting system construction companies based in the United States

RevenueBase identified 43 rainwater harvesting system construction companies headquartered in the United States as of September 2026 and tracks 196 professional contacts across them, including 90 with verified work emails. Austin is the largest hub.

This list covers rainwater harvesting system construction companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review
43Companies
196Contacts tracked
90Verified emails
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The 17 largest rainwater harvesting system construction companies based in the United States

Ranked by team size
Top 17 of 43 rainwater harvesting system construction companies based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to rainwater harvesting system construction companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceMckinney, TX, United StatesHQ checked Sep 17, 202651-20025 contacts →

Partial evidence

“inCon-trol Water Systems partners with designers, engineers, and builders to deliver smart, reliable water systems-including fountains, water features, pump systems, water…”

Source: RevenueBase Database · checked Sep 17, 2026
2Strong evidenceCumming, GA, United StatesHQ checked Sep 17, 202611-5019 contacts →

Strong evidence

“RainHarvest Systems is your comprehensive resource for residential and commercial water harvesting, treatment and reuse products and systems.”

Source: RevenueBase Database · checked Sep 17, 2026
3Partial evidenceCincinnati, OH, United StatesHQ checked Sep 17, 202611-5018 contacts →

Partial evidence

“At Streamkey Inc, we specialize in custom engineered water and wastewater systems for a variety of commercial and residential applications.”

Source: RevenueBase Database · checked Sep 17, 2026
4Strong evidenceRoanoke, VA, United StatesHQ checked Sep 17, 202611-5018 contacts →

Strong evidence

“RMS provides complete rainwater harvesting systems and solutions for residential, commercial, industrial and agricultural projects.”

Source: RevenueBase Database · checked Sep 17, 2026
5Partial evidenceAustin, TX, United StatesHQ checked Sep 17, 202611-5016 contacts →

Partial evidence

“Innovative Water Solutions LLC is a full-service water conservation system design / build company that specializes in integrated water demand and supply management for residential…”

Source: RevenueBase Database · checked Sep 17, 2026
6Partial evidenceHinsdale, IL, United StatesHQ checked Sep 17, 20261-109 contacts →

Partial evidence

“At Water Harvesting Solutions (Wahaso), we are a team that brings experience, skill and passion about water conservation to every client project.”

Source: RevenueBase Database · checked Sep 17, 2026
7Indirect evidenceMiami Beach, FL, United StatesHQ checked Sep 17, 20261-107 contacts →

Indirect evidence

“In collaboration with engineers, architects, and developers, we are building a more secure world by helping communities achieve water resilience, where potable water is protected.”

Source: RevenueBase Database · checked Sep 17, 2026
8Partial evidenceMokena, IL, United StatesHQ checked Sep 17, 202611-506 contacts →

Partial evidence

“The mission of ARCSA International is to provide resources and information on rainwater collection, promote the advancement of rainwater conservation and work with state, county…”

Source: RevenueBase Database · checked Sep 17, 2026
9Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 20261-105 contacts →

Indirect evidence

“Greywater Corps is the only company in the Los Angeles area specializing in water resiliency.”

Source: RevenueBase Database · checked Sep 17, 2026
10Strong evidenceDripping Springs, TX, United StatesHQ checked Sep 17, 20261-104 contacts →

Strong evidence

“At Harvest Rain, we build rainwater harvesting systems designed to last.”

Source: RevenueBase Database · checked Sep 17, 2026
11Strong evidenceAustin, TX, United StatesHQ checked Sep 17, 20261-104 contacts →

Strong evidence

“Cqure Water provides rainwater collection and water storage systems for homes and ranches in Central Texas.”

Source: RevenueBase Database · checked Sep 17, 2026
12Strong evidenceAustin Tx, United StatesHQ checked Sep 17, 202611-503 contacts →

Strong evidence

“Deepleen Insta Solutions, based in Mangalore, specializes in Rainwater Harvesting Filters & Systems that promote sustainable groundwater recharge.”

Source: RevenueBase Database · checked Sep 17, 2026
13Indirect evidenceCharlottesville, VA, United StatesHQ checked Sep 17, 202611-503 contacts →

Indirect evidence

“Commonwealth H2O – Blue Ridge is a full service water conservation and conditioning company.”

Source: RevenueBase Database · checked Sep 17, 2026
14Strong evidenceSan Diego, CA, United StatesHQ checked Sep 17, 20261-102 contacts →

Strong evidence

“At CatchingH2O, we help homeowners, businesses, and organizations create smarter, more resilient water systems through rainwater harvesting and greywater reuse.”

Source: RevenueBase Database · checked Sep 17, 2026
15Strong evidenceSan Marcos, TX, United StatesHQ checked Sep 17, 20261-101 contacts →

Strong evidence

“FLOW installs turnkey rainwater harvesting systems across Texas.”

Source: RevenueBase Database · checked Sep 17, 2026
16Indirect evidenceWillow Park, TX, United StatesHQ checked Sep 17, 20261-101 contacts →

Indirect evidence

“You need it.”

Source: RevenueBase Database · checked Sep 17, 2026
17Indirect evidenceBoerne, TX, United StatesHQ checked Sep 17, 20261-101 contacts →

Indirect evidence

“Rain is free, sustainable, and when collected and stored properly provides the purest water.”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 17 of 43 rainwater harvesting system construction companies based in the United States

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Rainwater harvesting system construction companies based in the United States at a glance

As of Sep 17, 2026
45.9%Verified-email coverage
4.6Average contacts per company
1-10Median size (employees)
7.0%Largest-city concentration · Austin
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
30
11-50
12
51-200
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 43 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among rainwater harvesting system construction companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “rainwater harvesting system construction companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names rainwater harvesting system construction companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among rainwater harvesting system construction companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 90 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names rainwater harvesting system construction companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many rainwater harvesting system construction companies are there based in the United States?

RevenueBase identified 43 rainwater harvesting system construction companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Incon-Trol Water Systems, headquartered in Mckinney, tops this list with the largest team on record.

Which city has the most rainwater harvesting system construction companies?

Austin leads with 3 headquartered companies, followed by Cincinnati (2) and Baltimore (1).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 90 verified decision-maker contacts tracked across these 43 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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Related lists

Rainwater harvesting system construction companies by geography

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.