- Smoothie King Franchises
- Smuggler's Cove
- Smurfit-Stone Recycling
- Snack Attack
- Snack Bar
- Snack Shack
- Snack Shop
- Snak-Atak
- Snap
- Snap Fitness
- Snap Shots
- Snap Wireless
- Snappy Nails
- Snappy Tomato Pizza
- Sneakers
- Sneaky Pete's
- Sneaky Pete's Hot Dogs
- SnellingSearch
- Snider Fleet Solutions
- Snip N Clip
- Snip N' Clip Haircut Shops
- Snippers
- Snips
- Snohomish County - Auditor- Licenses- Vehicle & Vessel Title & Registra
- SNO-Isle Regional Library System
- Snow White Cleaners
- Snowflake Donuts
- Snyder & Associates
- Snyder's Bakery
- Snyders Drug Stores
- Soap Box
- Soap Opera
- Sobik's Subs
- Soccer City
- Soccer Plus
- Soccer USA
- Soccer World
- Social Security Office
- Social Services