Pesticides, Disinfectants, and Miscellaneous Chemicals
- Agdia Diagnostic Labs – Plant disease testing kits
- Antec International – Disinfectant manufacturer
- Cleary Chemical Corporation – Insecticides, fungicides and herbicides
- Gowan Company – Variety of fungicides and insecticides
- Griffin Greenhouse & Nursery Supplies – Insecticides, fungicides, herbicides, and misc chemicals
- Hummert International
- Olympic Horticultural Products – Insecticides and fungicides
- Phyton 27 – Fungicide and bactericide
- SePRO – Insecticides, fungicides and growth regulators
- Syngenta – Insecticides, herbicides and fungicides
- Valent – Insecticides and growth regulators
- Whitmire Micro-Gen – Insecticides, fungicides and growth regulators
Plant Growth Regulators
- Fine Americas – Growth regulators
- Griffin Greenhouse & Nursery Supplies – Growth regulators
- Hummert International
- SePRO – Insecticides, fungicides and growth regulators
- Chemtura Corporation - Insecticides, fungicides, miticides and growth regulators
- Valent – Insecticides and growth regulators
- Michigan State University Plant Growth Regulator Research
- North Carolina State University Plant Growth Regulator Research
- North Carolina State University PGRCALC
- Best Management Practices For Plant Growth Regulators Used In Floriculture – North Carolina State University
- Using Plant Growth Regulators on Containerized Herbaceous Perennials – Virginia Cooperative Extension
- Selecting and Using Plant Growth Regulators on Floricultural Crops – Virginia Cooperative Extension
Fertilizers
- Cleary Chemical Corporation – Fertilizers and Lime
- Griffin Greenhouse & Nursery Supplies – Fertilizers
- Hummert International
- The Blackmore Company – Greencare Fertilizers
- The Scott's Company – Miracle-Gro Excel and Peters Professional water-soluble line
- Terra Industries – Nitrogen fertilizer, crop protection products
- North Carolina State University FERTCALC
- The Basics of Fertilizer Calculations for Greenhouse Crops – Virginia Cooperative Extension
Plant Material Suppliers
- Ball Horticultural Co.
- Daehnfeldt, Inc. – Begonia, gerbera, impatiens, primula, others
- EuroAmerican Propagators
- First Step Greenhouses – Perennial plug and rooted liners
- Syngenta Flowers
- Florida Plant Growers – Grower/broker of tropical foliage & flowering plants
- Gloeckner & Co. – Bulbs, seeds, cuttings, liners, pre-finished plants
- Goldsmith Seed
- Oglevee
- PanAmerican Seed
- Paul Ecke Ranch
- Proven Winners
- Syngenta Horticultural Services
- Sakata® Seed America, Inc.
- Vandenburg Bulb
- Yoder Brothers Inc.
Greenhouse Structures and Coverings
- AmeriLux International - Polycarbonate greenhouse glazing in multiwall and corrugated sheets
- Clovis Lande – Greenhouse and equipment manufacturer
- Conley's Greenhouse Mfg. & Sales – Greenhouse structures and coverings
- CropKing Inc. – Greenhouse structures, equipment, hydroponic supplies
- Green-Tek – Greenhouse coverings, shadecloth, netting
- Griffin Greenhouse & Nursery Supplies – Greenhouse structures and coverings
- Hummert International
- Nexus Corporation – Greenhouse systems
- Poly-Tex Inc. – Commercial and retail greenhouse structures, coverings
- Rough Brothers – Greenhouse structures
- Palram Americas - Corrugated sheeting for greenhouses and other applications
- Van Looveren BVBA – Greenhouse glass
- Westbrook Greenhouse Systems
Greenhouse Environmental Controls
- Acme – Greenhouse heating/ventilation
- Argus Controls System – Environmental control automation
- Bartlett Instrument Company – Greenhouse controllers
- Griffin Greenhouse & Nursery Supplies – Climate control and heating/cooling equipment
- Hummert International
- International Light Inc. – Instruments for light measurement
- KES Irrigation – Misting and climate control products
- Mee Industries, Inc. – Fog systems
- MicroCool – High pressure fog systems for cooling and humidification
- PARSource – Supplemental lighting
- PRIVA – Greenhouse environmental controls
- P.L. Light Systems – Supplemental lighting
- Poly-Tex Inc. – Heating/cooling/ventiliation systems
- Onset Computer Corp. – Shipping temperature loggers
- Schaefer Fan Co. – Greenhouse ventilation equipment
- Winland Electronics – Humid-Alert, Power Out-Alert
Irrigation/Fertigation
- Chapin Watermatics, Inc. – Water Deliver Systems
- Dosatron – Non-Electric Proportional Liquid Dispensers
- Griffin Greenhouse & Nursery Supplies – Irrigation/fertigation equipment
- Hummert International
- Irrometer Company, Inc. – Soil moisture measurement and control equipment
- KES Irrigation – Misting control products
- Mee Industries, Inc. – Fog systems
- MicroCool – High pressure fog systems for cooling and humidification
- Naan Irrigation Systems
- North Carolina State University Alkalinity Calculator
Seeders and Transplanters
- Nexus Corporation – Automation equipment
- Rapid Automated Systems – Automated transplanting equipment
- Seed E-Z Seeder – Greenhouse equipment
- The Blackmore Company – Automated transplanting equipment
Potting Media
- Fafard – Media
- Jiffy Products – Media and containers
- Hummert International
- Michigan Grower Products – Media and container-filling services
- Premier Horticulture – Producers of growing media, the site also has articles, hyperlinks
- Scotts Company – Soil mixes and amendments (Metro-Mix, Miracle-Gro Professional, etc.)
- Sun Grow Horticulture – Growing mixes
Plastics (Pots, Flats, Trays, Labels)
- Gloeckner & Co. – Bulbs, seeds and cuttings
- Griffin Greenhouse & Nursery Supplies – Containers
- Hummert International
- Jiffy Products – Containers and media
- Macore Co., Inc. – Manufacturer of plant labels for the nursery and greenhouse industry
- Michigan Grower Products – Media and container-filling services
- The John Henry Company – Supplies tags, labels, packaging, and P.O.P. materials
Benches, Carts
- Gloeckner & Co. – Greenhouse supplies
- Griffin Greenhouse & Nursery Supplies – Display benches
- Hummert International
- Nexus Corporation – Retail displays and benches
- Nursery Carts Unlimited – Carts
- Poly-Tex Inc. – Retail displays, benching systems
- Wellmaster Carts – Material handling carts
- Westbrook Greenhouse Systems – Benches, carts
Other Greenhouse Equipment
- Gloeckner & Co. – Greenhouse supplies
- Griffin Greenhouse & Nursery Supplies – Miscellaneous equipment, sprayers
- Hummert International
- Poly-Tex Inc. – Shade cloth, lights
- Westbrook Greenhouse Systems – Materials handling