- Shoppers Food Warehouse
- Shopper's Guide
- Shore Bank
- Shore Distributors
- Shoreline Flooring Supplies
- Short Cuts
- Short Stop Food Mart
- Short Stop Food Store
- Short Stop Market
- Short Term Loans L L C
- Shorty's
- Showbiz Video
- Showcase
- Showcase Homes
- Showplace Rent To Own
- Showroom
- Showtime
- Showtime Video
- Shred-It
- Shrimp Boat
- Shukla Sanjay MD
- Shula's Steak House
- Shurgard Self Storage
- Shurgard Storage
- Shurgard Storage Center
- Shurgard Storage Centers - Seattle
- Shutter Shop
- Shutterbug
- Sib Mortgage
- Sibley's Shoes
- Sid Harvey Industries
- Side Door
- Side Street Salon
- Sidelines
- Sidewalk Cafe
- Siding World
- Sidley R W
- Siebel Systems
- Siematic Corporation