GROW!T

Grow1

Grower's Choice

Growers Edge

GrowFlux

GrowoniX

Growtainers

Growth Science

H. D. Hudson Manufacturing Company

Hanna Instruments

Harvest Keeper

Harvest More

HEAVY 16

HM Digital

HM Digital Meters

Hormex

Horticulture Lighting Group

House & Garden

Htg Supply, Llc

Humboldt County's Own / Emerald Triangle

Humboldt Nutrients

Hurricane

Hydro Flow

Hydro Organics / Earth Juice

Hydro-Logic

Hydrodynamics International

Hydrofarm

Hydropolis Grow Tents

Hygrozyme

Ideal Air

IHORT

Innovative Growers Equipment

Integra Boost

Intelligent Growing Systems (Plug & Grow )

International Enviroguard

JETFAN

Jump Start

Kenex Scales

Lambert Peat Moss Inc

Leader Pumps

Lightech

LightRail

Link4 Corporation

Loctite

Lost Coast Plant Therapy

Mad Farmer

Malibu Compost Inc.

Mammoth Microbes

Marrone Bio

Measure Master

Michigan Peat Co

Microbe Life Hydroponics

Milwaukee Instruments

Mondi

Monterey Lawn & Garden Products

Mosser Lee

Mother Earth

MRCOOL

Nanolux

Nectar for the Gods

Niwa

Novelty Manufacturing

NPK Industries

Nutrilife Products

Oasis

Olivia's Solution

Ona Products

Optic Foliar

Original Resinator

oxyCLONE

P3 International

Pacific Substrates

Palmetto

Panda Film

Pargro

Phantom

Phantom CMh

PHANTOM Cultivar

Phantom DE

Phantom LED

Phat

PHOTOBIO

PhotonTek

Phresh

Physan 20

Plant Success / Great White

powerPAR

Primordial Solutions

Private Reserve

Pro Cal

PRO-MIX

Procidic2

PureCrop1

Quantum

Quest

Raindrip

Rainmaker

Rare Dankness Nutrients

Remo Nutrients

Revelry Supply