What GrowSpan Greenhouse Structures does

GrowSpan Greenhouse Structures designs, manufactures, and installs commercial greenhouse structures for growers across North America. The company operates as a brand within Growers Supply, Inc., founded in 1980, with its headquarters in South Windsor, Connecticut and a manufacturing and demonstration campus in Dyersville, Iowa that includes a Venlo-style Dutch glass greenhouse facility opened in April 2025. GrowSpan's core offerings span film-covered structures, polycarbonate greenhouses, Dutch Venlo glass houses, automated blackout and light-dep systems, hydroponic equipment, and metal building headhouses, with custom engineering performed using proprietary CASTA Dutch greenhouse design software not commonly held by US competitors. The company also provides installation services and in-house financing (0% down, 9.99% APR up to 72 months) to lower the capital barrier for commercial buyers.

GrowSpan sells primarily through direct field sales staffed by Greenhouse Specialists, supported by inside sales and the Growers Supply e-commerce channel. Customer segments are deliberately diversified across cannabis and hemp cultivation, education and research institutions, commercial vegetable and flower production, retail garden centers and nurseries, hydroponic and controlled-environment operations, algae and wastewater remediation, and hobby growers. Government grant access through the NRCS High Tunnel Systems Initiative provides an additional federally subsidized acquisition pathway. Sister brands ClearSpan Structures (fabric and metal buildings) and HydroCycle Growing Systems (hydroponic equipment) extend the controlled-environment agriculture ecosystem under common ownership. Strategic partnerships with CLEARAS Solutions and Gross-Wen Technologies position the company in emerging algae-based wastewater and algae-farming applications. Revenue is generated through project-based hardware sales, professional services, and financing income, with no public revenue disclosure available.

Name

GrowSpan Greenhouse Structures

Legal name

Growers Supply, Inc.

Website

https://growspan.com

Company type

Private

Founded year

1980

Operating status

Operating

Headcount range

101–250 employees

Short description

GrowSpan Greenhouse Structures designs, manufactures, and installs commercial greenhouses for cannabis growers, researchers, nurseries, and commercial produce operations across North America, offering Dutch-engineered structures, hydroponics, financing, and turnkey installation under the Growers Supply, Inc. parent.

Ownership category

akta.pro rank

Product category

Commercial Greenhouses

NAICS

Nursery, Garden Center, and Farm Supply Retailers (444240)

SIC

Farm Machinery & Equipment (3523)

akta.pro primary industry

Greenhouse Structures & Construction (Frames, Glazing, Benches) (AFAAAHAA)

akta.pro secondary industries

Hydroponic & Aeroponic Growing Systems (NFT, DWC, Ebb/Flow, Misting) (AFAAAHAD), Outdoor Living Structures Retail (Sheds, Gazebos, Pergolas, Greenhouses) (CRAIAIAG)

Keywords

• Commercial greenhouses
• Greenhouse structures
• Hydroponic systems
• Cannabis cultivation
• Controlled environment agriculture

Headquarters

HQ city

South Windsor

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Infrastructure

Revenue model

1. Greenhouse Structure Sales: Sale of commercial and professional greenhouse structures including Series 2000, Series 1000, Series 750, Series 550, Venlo, Premium, Pro, and High Tunnel models. Revenue is generated through one-time purchase of structures, with gutter-connected and custom-designed buildings commanding premium pricing.
2. Environmental Control Equipment Sales: Sale of greenhouse accessories and environmental control equipment including controllers, lighting, HVAC/heating/cooling, CO2 enrichment, humidity control, benches, evaporative cooling, irrigation/fertigation, shade systems, and odor mitigation. Sold as optional packages alongside greenhouse structures.
3. Hydroponics and Growing Systems Sales: Sale of HydroCycle branded hydroponics systems including NFT, aquaponics, ebb and flow, Dutch bucket, microgreen, and vertical aeroponic systems. HydroCycle is a Growers Supply brand with access to over 30,000 related products.
4. Professional Services (Design, Installation, Consultation): In-house design, financing, and installation services provided by Greenhouse Specialists. Expert consultation for cannabis, hemp, and commercial growing operations. Equity-free cannabis consultation included with cannabis greenhouse purchases.
5. Financing Revenue: GrowSpan offers financing options including $0 down and 9.99% interest rates for up to 72 months, generating revenue through financing arrangements with customers.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels9 records

Core offering

GrowSpan designs, manufactures, and sells commercial-grade greenhouse structures and hydroponic systems for growers. Their product range includes gutter-connected greenhouses (Series 2000, 1000, 550, Venlo, Gothic, Round), high tunnels, cold frames, blackout systems, and HydroCycle hydroponic equipment for produce, flower, and cannabis cultivation.

Product overview

GrowSpan Greenhouse Structures is a comprehensive commercial greenhouse manufacturer and controlled environment agriculture solution provider. The company offers a multi-tiered product portfolio organized around greenhouse structures (Commercial Series including Series 2000, Series 1000, Series 550, and Venlo Glass Greenhouses; Premium Series with Gothic, Round, and Corrugated models; and Pro Series for cost-effective professional growing), specialty structures (High Tunnels, Shade Structures, Cold Frames, and Horticulture Headhouses), and hydroponic growing systems under the HydroCycle brand (NFT, Aquaponics, Ebb and Flow, Dutch Bucket, Microgreen, and Vertical Aeroponic systems). The ecosystem is complemented by environmental control add-ons including smart controllers, lighting systems, HVAC/heating/cooling, evaporative cooling, irrigation/fertigation, CO2 enrichment, humidity control, benches, shade systems, and odor mitigation. The company serves diverse industries including cannabis, hemp, education/research, vegetable/flower production, retail/nursery, and algae/wastewater treatment. GrowSpan operates as a brand under Growers Supply and positions itself as a one-stop-shop solution with in-house manufacturing, design, financing, and installation services.

Differentiator

Problem solved

Functional benefit

Brands

• ClearSpan Structures: Sister company and industry-leading manufacturer of fabric and metal buildings with over 40 years of experience.
• HydroCycle Growing Systems

Products and services

• Series 2000 Commercial Greenhouses Premium gutter-connected commercial greenhouse designed for large-scale growers requiring maximum growing space and structural strength; engineered using in-house Dutch design software.
• Series 1000 Commercial Greenhouses Gutter-connected commercial greenhouse structure positioned as a step-down from the Series 2000, suited to mid-to-large commercial operations.
• Series 550 Greenhouses Entry-level gutter-connected greenhouse structure for growers scaling into commercial production.
• Venlo Glass Greenhouses European-style Venlo glass greenhouse structure for produce and floriculture operations requiring high light transmission.
• Gothic Premium Greenhouses Premium gothic-arch greenhouse structure with increased interior height and snow-load capacity.
• Round Premium Greenhouses Premium round-arch greenhouse structure designed for commercial growers.
• Round Premium Corrugated Greenhouses Round-arch greenhouse with corrugated covering for added structural rigidity in commercial settings.
• Gothic Pro Greenhouses Gothic-arch greenhouse in the professional tier for growers needing durable intermediate-scale structures.
• Round Pro Greenhouses Professional-grade round-arch greenhouse structure for commercial growers.
• High Tunnels Low-cost, unheated hoop-style growing structures for season extension in produce operations.
• Shade Structures Open-frame shade structures for outdoor crop protection from intense sun and heat.
• Cold Frames Small, ground-level protected growing enclosures for seedlings, propagation, and small-scale cultivation.
• Horticulture Headhouses Standalone utility buildings adjacent to greenhouses used for equipment storage, processing, and workspace.
• Cannabis Metal Buildings Purpose-built metal building structures designed for licensed cannabis cultivation, drying, and processing operations.
• Blackout Systems Automated blackout/light deprivation systems that integrate with greenhouse structures to control photoperiod for cannabis and other photoperiod-sensitive crops.
• HydroCycle NFT Systems Nutrient Film Technique hydroponic systems for soil-free produce cultivation in channels with recirculating nutrient solution.
• HydroCycle Aquaponics Systems Integrated aquaponics systems combining hydroponic plant production with aquaculture.
• HydroCycle Ebb and Flow Systems Ebb and flow (flood and drain) hydroponic systems for soilless cultivation in trays or tables.
• HydroCycle Dutch Bucket Systems Dutch bucket hydroponic systems for vining and large-fruit crops such as tomatoes, cucumbers, and peppers.
• HydroCycle Microgreen Systems Hydroponic systems purpose-built for commercial microgreen production.
• HydroCycle Vertical Aeroponic Systems Vertical aeroponic systems that grow plants in stacked towers with misted nutrient delivery for high-density production.

Quantifiable outcome

• HydroCycle hydroponics systems reduce water usage by up to 90 percent
• +7 more outcomes

Named customers17 records

Segments7 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature12 records

Partnerships

Four partnerships are on record, tiered core and minor.

• ClearSpan StructurescoreOEM/ Whitelabel/ Licensing PartnerClearSpan Structures is GrowSpan's sister company and an industry-leading manufacturer of fabric and metal buildings with over 40 years of experience. For cannabis metal buildings, GrowSpan's Cannabis Specialists handle growing and cannabis needs while ClearSpan's Truss Arch Specialists ensure structural quality and durability. Metal buildings feature triple-galvanized steel trusses with 50-year warranty and corrugated metal cladding with 25-year warranty.
• HydroCycle Growing SystemscoreTechnology or IntegrationHydroCycle Growing Systems is a Growers Supply brand providing superior hydroponics systems (NFT, aquaponics, ebb and flow, Dutch bucket, microgreen, and vertical aeroponic systems). HydroCycle customers have access to Growers Supply's over 30,000 products, creating a seamless one-stop shopping experience for hydroponic growing operations.
• CLEARAS SolutionsminorStrategic or Co-development PartnerCLEARAS Solutions operates an algae-based wastewater treatment facility utilizing GrowSpan greenhouse structures. GrowSpan greenhouses create ideal environments for algae production using open pond cultivation, closed photobioreactors, attached growth systems, and hybrid setups.
• Gross-Wen TechnologiesminorStrategic or Co-development PartnerGross-Wen Technologies partners with GrowSpan for algae farming buildings used in algae-based wastewater treatment. GrowSpan greenhouses create controlled environments for algae cultivation, leveraging wastewater nutrients for sustainable biomass production.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Nexus Greenhouse Systems: U.S. manufacturer of custom commercial greenhouses and growing structures, gutter-connected glass and polycarbonate houses, and environmental systems for produce and floriculture. Closely overlaps GrowSpan on commercial greenhouse design and supply.
• Gothic Arch Greenhouses: Manufacturer and supplier of hobby, commercial, and institutional greenhouses with hydroponic systems and environmental controls. Overlaps with GrowSpan across both the professional and education segments.
• Rimol Greenhouse Systems: U.S. commercial greenhouse manufacturer offering gutter-connected houses and growing systems to vegetable, flower, and cannabis growers. Comparable pricing tier, customer mix, and custom-design capability.
• Agra Tech, Inc. Commercial greenhouse builder serving growers, research institutions, and schools with custom structures and environmental control systems. Direct competitor to GrowSpan's commercial-series and education-vertical offerings.
• Ludy Greenhouse Manufacturing: U.S. custom greenhouse builder producing glass, polycarbonate, and film-covered houses plus environmental systems for commercial growers and research. Direct peer on custom engineering and turnkey projects.
• Rough Brothers Inc. (RBI / Conley Group): One of the largest U.S. commercial greenhouse manufacturers, offering gutter-connected and Venlo-style glass structures plus environmental control systems to commercial growers in horticulture, research, and cannabis. Directly comparable to GrowSpan in product range, customer segments, and end-to-end project delivery.
• Atlas Greenhouse Technologies: Commercial greenhouse and high tunnel manufacturer serving horticulture, vegetable, and cannabis growers in North America. Comparable product breadth and go-to-market focus on commercial operations.
• Stuppy Greenhouse Manufacturing: U.S. manufacturer of gutter-connected, gutter-vent, and freestanding greenhouses plus automation and environmental control products sold to commercial growers and educators. Strong overlap with GrowSpan across product tiers and target verticals.

Regional players

• Harnois Industries: Canadian manufacturer of large-scale Venlo-style and gutter-connected glass greenhouses with strong presence in North America. Comparable engineering depth in commercial greenhouse structures though primarily serving the Canadian market.

Emerging players

• Ceres Greenhouse Solutions: Designer of energy-efficient, year-round greenhouses for residential, small commercial, and institutional use, including cold-climate and off-grid designs. Comparable in agriculture-education overlap but smaller scale than GrowSpan.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/growers_supply
• YouTubeyoutube.com/c/GrowSpanGreenhouseStructures
• Facebookfacebook.com/GrowSpanGreenhouse
• LinkedInlinkedin.com/company/growspan-greenhouse-structures
• Instagraminstagram.com/growspan

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries2 records

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 GrowSpan Greenhouse Structures