| Manufacturer Name |
Products |
| O2 Cool | battery-operated misting and portable fans, water-cooling products, outdoor products |
| Oakley | sunglasses, wearable electronics, apparel, footwear, watches, bags, backpacks, goggles, prescription eyewear |
| Obermeyer | skiwear, apparel |
| Ocean Kayak | kayaks, accessories |
| Of the Earth | outdoor apparel made from organic textiles |
| OGIO | sports gear |
| Old Town | canoes, kayaks, accessories |
| Omega Pacific | climbing gear |
| Open Country | campware kits, canteens, bottles, cookware, eating ware, fry pans, dehydrators |
| Option Snowboards | snowboards, bindings, apparel, accessories |
| Orage | skiwear, apparel |
| Orikaso | folding flatware |
| Ortovox | avalanche transceivers, shovels, avalanche probes, dog rescue equipment, backpacks, apparel |
| Osprey | backpacks |
| Otter | waterproof gear boxes |
| Outdoor Research | apparel, technical clothing, headwear, gaiters, storage systems, sleeping bags, sleeping pads |
| Outward Bound - VOBS | clothing and shoes |
| Overland Equipment | backpacks, bags |
| Oware | tarps. shelters, clothing, ponchos, bivys, pads, sleeping bag liners, ski patrol gear, stuffsacks, day packs, miscellaneous equipment |
| Ozone | paragliders, paramotors, land kites, snow kites, kitesurfing, accessories |
