Company lists · Data refreshed September 2026
Top 25 Greenhouse builders based in the United States
RevenueBase identified 475 greenhouse builders headquartered in the United States as of September 2026 and tracks 3,445 professional contacts across them, including 1,175 with verified work emails. Austin is the largest hub.
This list covers greenhouse builders 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 19, 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.
The 25 largest greenhouse builders based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 295 contacts → | ||||
Partial evidence “Green Circle Growers is one of the largest greenhouses in North America with over 150 acres of indoor growing space.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 147 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 124 contacts → | ||||
Indirect evidence “Prospiant represents the agriculture technology business portfolio of Gibraltar Industries, Inc.(NASDAQ: ROCK), and is the leading U.S-based provider of turnkey controlled…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 92 contacts → | ||||
Indirect evidence “Engineering Services & Products Company (ESAPCO) was founded in 1979 with the purpose of bringing the highest quality products at the most competitive prices with exceptional…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 92 contacts → | ||||
Indirect evidence “At Speedling we are motivated by our customers’ success.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 84 contacts → | ||||
Indirect evidence “Panelized Structures sets the standard for innovation and safety in large scale commercial and industrial building roof structures.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 76 contacts → | ||||
Indirect evidence “Bensonwood is a design/build firm producing sustainable, energy-efficient residential and commercial buildings with a strong emphasis on offsite fabrication and minimization of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 66 contacts → | ||||
Partial evidence “Natural Beauty is a socially and environmentally conscious greenhouse, leading the way to a greener and more colorful world.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 59 contacts → | ||||
Indirect evidence “Alpen High Performance Products is an American window and door manufacturer that exists for one reason: to make high-performance buildings actually buildable.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 58 contacts → | ||||
Indirect evidence “AdeptAg is the North American leader in turnkey design, automation solutions, controls, irrigation systems, and services for any of your controlled environment production needs.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 52 contacts → | ||||
Partial evidence “Closed as of 12/13/25 Our vertical greenhouses grow and harvest the freshest produce around; safely, consistently and sustainably 24/7/365 Partner with us and keep your produce…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 43 contacts → | ||||
Indirect evidence “Rough Brothers Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 41 contacts → | ||||
Partial evidence “Stuppy is proud to be one of North America’s top greenhouse companies.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 39 contacts → | ||||
Indirect evidence “Precision Environments, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 33 contacts → | ||||
Indirect evidence “Mr.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 32 contacts → | ||||
Indirect evidence “We are AddLife, a detailed plant service.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 32 contacts → | ||||
Indirect evidence “Hawkeye Construction is a General Contractor specializing in green construction, renovation and installations in the mid-Atlantic region.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 31 contacts → | ||||
Indirect evidence “Greenery NYC is a botanic design, installation, & maintenance company based in Brooklyn, NY.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 30 contacts → | ||||
Partial 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 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 30 contacts → | ||||
Indirect evidence “Nexem is an engineering and consulting company that provides expertise and solutions to customers growing indoors in controlled environments.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 29 contacts → | ||||
Partial evidence “Established in 1983, Poly-Tex has been manufacturing quality greenhouses, shade structures, display fixtures, and solar canopy structures for almost 30 years in Castle Rock…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 29 contacts → | ||||
Indirect evidence “Structures Unlimited sells and erects buildings that provide an abundance of natural light and superior ventilation, while offering you unmatched versatility for a variety of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 28 contacts → | ||||
Indirect evidence “What started as a destination Garden Center in the vast rural environment just outside of Sioux Falls city limits, Landscape Garden Centers has blossomed into the region's premier…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 28 contacts → | ||||
Indirect evidence “Recover Green Roofs is a design-build firm specializing in the design, installation, and maintenance of green roofs, including rooftop gardens, farms, and amenity spaces.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 28 contacts → | ||||
Indirect evidence “Since 1980, we have been designing award-winning shelters that are engineered to be energy efficient, easy to erect and exceptionally durable.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: greenhouse builders. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names greenhouse builders.
- Partial evidence
- Its own public description names part of greenhouse builders, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name greenhouse builders. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 475 greenhouse builders based in the United States
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Greenhouse builders based in the United States at a glance
As of Sep 19, 2026Companies by employee count
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 475 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 greenhouse builders, 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 “greenhouse builders”. 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 greenhouse builders), 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 greenhouse builders, 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, 1,175 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 19, 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 greenhouse builders, 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 greenhouse builders are there based in the United States?
RevenueBase identified 475 greenhouse builders 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?
Green Circle Growers, headquartered in Oberlin, tops this list with the largest team on record.
Which city has the most greenhouse builders?
Austin leads with 11 headquartered companies, followed by New York (9) and Cincinnati (8).
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 1,175 verified decision-maker contacts tracked across these 475 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 19, 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.