Rhizoflora

Rock Nutrients

Rogue Soil

Root Radiance

Roots Organics

Royal Gold

Safer

Schaefer

Seabright Laboratories

Shear Perfection

Shield N Seal

Sierra Natural Science

Sipco Innovations Inc.

Smart Pot

Sohum Living Soil

Soul

South Cascade Organics

Speed Bully

Spray-N-Grow

Staal Plast

STACK!T

STM Canna

Summit Chemical

Sun Blaster

Sun Blaze & Solar Flare

Sun Gro Horticulture Inc

Sun System Ballast

SunBlaster

Sungro/Sunshine Advanced

Super Bat / Budswel

Super Sprouter

SuperThrive

Tarpline USA

Technaflora

The Amazing Doctor Zymes

The Green Pad

ThinkGrow

Titan Controls

TNB Naturals

Trim Fast by Hydrofarm

Trimbag

TrolMaster

True Liberty Bags

Truweigh

Twister Trimmer

Ushio

Vegamatrix

Wiggle Worm Soil Builder

Wipe Out

Xtrasun

Xtreme Gardening / RTI