Company lists · Data refreshed September 2026

Top 25 Propagation equipment suppliers based in the United States

RevenueBase identified 158 propagation equipment suppliers headquartered in the United States as of September 2026 and tracks 1,654 professional contacts across them, including 458 with verified work emails. Los Angeles is the largest hub.

This list covers propagation equipment suppliers 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 20, 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 20, 2026 86% judged on-target in blind review
158Companies
1,654Contacts tracked
458Verified emails
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The 25 largest propagation equipment suppliers based in the United States

Ranked by team size
Top 25 of 158 propagation equipment suppliers based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to propagation equipment suppliers: 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
1Indirect evidenceGreenwood Village, CO, United StatesHQ checked Sep 20, 2026201-500180 contacts →

Indirect evidence

“GrowGeneration is the nation’s largest specialty retailer and distributor serving commercial hydroponic, controlled environment agriculture (CEA), and specialty cultivation…”

Source: RevenueBase Database · checked Sep 20, 2026
2Strong evidencePetaluma, United StatesHQ checked Sep 20, 2026201-500147 contacts →

Strong evidence

“Hydrofarm is a leading distributor and manufacturer of hydroponics equipment and supplies for controlled environment agriculture, including high intensity grow lights, climate…”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceVancouver, WA, United StatesHQ checked Sep 20, 2026201-500129 contacts →

Partial evidence

“Founded in 1995, Sunlight Supply, Inc, is a Vancouver, WA based manufacturer and distributor of specialty gardening supplies.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceRuskin, FL, United StatesHQ checked Sep 20, 202651-20092 contacts →

Indirect evidence

“At Speedling we are motivated by our customers’ success.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceKing Of Prussia, PA, United StatesHQ checked Sep 20, 202651-20054 contacts →

Indirect evidence

“Michell’s is your complete plant, seed and nursery source!”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceManitowoc, WI, United StatesHQ checked Sep 20, 202651-20048 contacts →

Indirect evidence

“Founded in 1941 with the invention of the 400AL Waterbreaker, the Dramm Corporation continues to provide solutions to the commercial and consumer horticultural market.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceCincinnati, OH, United StatesHQ checked Sep 20, 2026201-50043 contacts →

Indirect evidence

“Rough Brothers Inc.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceNorth Kansas City, MO, United StatesHQ checked Sep 20, 202611-5041 contacts →

Indirect evidence

“Stuppy is proud to be one of North America’s top greenhouse companies.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceAnaheim, CA, United StatesHQ checked Sep 20, 202611-5030 contacts →

Indirect evidence

“Link4 Corporation builds the systems that power modern cultivation - smart greenhouse controls, automated irrigation, custom OEM solutions, and licensed electrical installations…”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceCorona, CA, United StatesHQ checked Sep 20, 202611-5027 contacts →

Indirect evidence

“20+ Years of Lighting the Industry from the Inside Out At ILUMINAR LIGHTING, we’ve spent over two decades inside grow rooms, testing, refining, and engineering lighting that…”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceIrvington, AL, United StatesHQ checked Sep 20, 20261-1027 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceCotati, CA, United StatesHQ checked Sep 20, 202611-5023 contacts →

Indirect evidence

“With over 44 years of unparalleled experience, BioTherm has been at the forefront of revolutionizing greenhouse climate technology.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceArcata, CA, United StatesHQ checked Sep 20, 202611-5023 contacts →

Indirect evidence

“American Hydroponics (AmHydro) has been a leader in commercial hydroponic systems and horticultural consulting for over 30 years.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceLodi, OH, United StatesHQ checked Sep 20, 202611-5021 contacts →

Indirect evidence

“For over 40 years, CropKing has been the leader in controlled environment agriculture, greenhouse manufacturing and hydroponic systems.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceHouston, FL, United StatesHQ checked Sep 20, 202611-5017 contacts →

Indirect evidence

“We design and build complete control systems achieving unprecedented quality and yield.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceTorrance, CA, United StatesHQ checked Sep 20, 202611-5015 contacts →

Indirect evidence

“Global Garden offers efficient cultivation solutions through a variety of products and services offered for small to commercial sized cultivators.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceCanby, OR, United StatesHQ checked Sep 20, 202611-5014 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceSan Marcos, TX, United StatesHQ checked Sep 20, 202611-5014 contacts →

Indirect evidence

“At Inevitable, we believe that the potential of every harvest begins with the seedling.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceBedford, TX, United StatesHQ checked Sep 20, 20261-1012 contacts →

Indirect evidence

“As a grower in controlled environment agriculture, you make decisions every day that affect yield, efficiency and quality.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceSouth Windsor, CT, United StatesHQ checked Sep 20, 2026201-50011 contacts →

Indirect evidence

“GrowSpan is the horticultural industry’s premier greenhouse manufacturer, offering quality growing structures and expert advice for any commercial, professional or hobby growing…”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidencePittsburg, CA, United StatesHQ checked Sep 20, 202611-5011 contacts →

Indirect evidence

“HELPING GROWERS EXCEED THEIR GOALS.”

Source: RevenueBase Database · checked Sep 20, 2026
22Partial evidenceCallery, PA, United StatesHQ checked Sep 20, 202651-20011 contacts →

Partial evidence

“High Tech Garden specializes in indoor grow lights, providing all the seed starting supplies and indoor gardening supplies needed for your hydroponics systems.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 20, 202611-5011 contacts →

Indirect evidence

“California LightWorks is an American company focused on research, design, development, and manufacturing of advanced energy-efficient LED greenhouse lights.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceAkron, OH, United StatesHQ checked Sep 20, 202611-5011 contacts →

Indirect evidence

“Indoor Gardens is a hydroponic and indoor gardening supply company.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceSanta Rosa, CA, United StatesHQ checked Sep 20, 202611-5010 contacts →

Indirect evidence

“Grow Strong Industries’ mission is to help humanity thrive by enabling all people to grow indoors effortlessly.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 158 propagation equipment suppliers based in the United States

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Propagation equipment suppliers based in the United States at a glance

As of Sep 20, 2026
27.7%Verified-email coverage
10.5Average contacts per company
11-50Median size (employees)
3.8%Largest-city concentration · Los Angeles
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
77
11-50
57
51-200
10
201-500
10
1,001-5,000
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 158 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 propagation equipment suppliers, 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 “propagation equipment suppliers”. 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 propagation equipment suppliers), 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 propagation equipment suppliers, 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, 458 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 20, 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 propagation equipment suppliers, 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 propagation equipment suppliers are there based in the United States?

RevenueBase identified 158 propagation equipment suppliers 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?

Growgeneration Corp, headquartered in Greenwood Village, tops this list with the largest team on record.

Which city has the most propagation equipment suppliers?

Los Angeles leads with 6 headquartered companies, followed by Chino (4) and Ontario (4).

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 458 verified decision-maker contacts tracked across these 158 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 20, 2026.

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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.