Qimuk Adventure Tours

Quebec Adventures

Rainbow Expeditions

Rainbow Mountain Adventures

Rain Walker Expeditions

Rawhide Outfitters

Red Feather Guides & Outfitters

Red Rock & Llamas Tours

Red Wood Llamas

Renaissance Adventure Guides

River & Trail Outfitters

River Jack

River Point Outfitting Company

Rivers and Trails Northeast

Rock-n-Row

Rocky Mountain Adventures

Rocky Mountain Outdoor Center

Rohr's Wilderness Tours

Safari Yellowstone

Saint Paul Island Tours

Santa Barbara Adventure Company

Sawtooth Outfitters

Sawtooth Wilderness Outfitters

Sawyer Lake Adventures

Seagull Canoe Outfitters

Sevy Guide Service

Shenandoah River Outfitters

Sierra Club Outings

Silver Run Outfitting and Guide Service

Sky Island Treks

Sky Trekking Alaska

Slipstream Guiding

Smiling Otter Wilderness Adventures

Snowy Owl Dog Sled Tours

Solitude River Trips

Song in the Woods

Soul Purpose Adventures

Sourdough Outfitters

Southern Yosemite Mountain Guides

South Florida Birding

South Passage Outfitters

Spatsizi Wilderness Vacations

Spruce Ridge Llamas Adventure Treks

Steens Wilderness Adventures

Stikine Adventures

Sunlight North Expeditions

Sunrise Expeditions

Superior North Canoe Outfitters

Susitna Dog Tours