| 3R Lighting Company | | Hydroponic, bioponic, indoor gardening equipment, grow lights, nutrients, and systems. |
| 4 Ever Sun | | Manufacturer of indoor hydroponic self contained grow boxes and accessories. |
| ACI Hydroponics | | Complete line of grow lights (HID), light movers, and hydroponic garden equipment. |
| Alabama Hydroponics | | Choose from a select group of Hydroponic items at reasonable prices. Home of the Hydroponic Tomato Challenge. |
| All American Hydroponics | | HID grow lights hydroponic systems, pH and conductivity products, and plant food (nutrients) made with an American pride. |
| American Agritech | | Manufacturers products for the hydroponic industry. Hydroponics is the method of growing plants without soil |
| Atlantis Hydroponics | | Suppliers of hydroponic equipment, nutrients, hormones, complete hydro and lighting systems. Also has stores in Georgia, USA. |
| Bare Roots Hydro | | Hydroponic and organic gardening supplies such as fertilizers, nutrients, and climate controls equipment. |
| Be Well Hydroponics | | Offers full range and contact details for shop in Charlotte, North Carolina. |
| Best Grow Lights | | Offering grow light systems, components, lamps and accessories. |
| Better Than Nature | | Indoor gardening products and systems. PH, TDS, temperature monitoring systems for commercial gardening, aeroponic and hydroponic garden greenhouses. |
| BG Hydro | | Offer a large selection of indoor hydroponics supplies and systems. |
| Big Blue Air Products | | Manufacturer of odor control products for indoor gardens and their ventilation systems. |
| Bustan Urban Gardening Essentials | | Includes propagation supplies, grow mediums, soil amendments, nutrients and supplements, horticultural lighting, tools and accessories, books, containers, seeds, bulbs, and exotic plants. |
| Cheap Hydroponics | | Offers full range of products such as hydroponic systems, grow lights, nutrients, and accessories. |
| Club Hydro | | Sells a variety of outdoor and indoor gardening equipment. |
| CropKing | | Offers controlled environment growing systems and technology for specialty crops including hydroponic vegetables, aquaculture and exotic mushrooms. |
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