- Sarnafil Inc
- Sarnafil Roofing Systems
- Shake & Shingle Sales Inc
- Shelter Building Products
- Shelter Building Products
- Shelter Distribution
- Shelter Distribution
- Siplast
- Slate Distributors
- Soprema Inc
- South 20
- Southern Shingles LP
- Spec Building Materials
- Spec Building Materials
- Spec Building Materials
- Spec Building Materials
- Spec Building Materials Corp
- SRS-Systems Roofers Supply
- Stoneway Roofing Supply Inc
- Straight Solutions Inc
- Summit Supply
- Sun Building Systems
- Superior Distribution Co LLC
- Systems Roofer Supply
- T & M Construction & Dev Corp
- Tallant Industries Inc
- Tamko Naples Inc
- Tamko Roofing Products
- Tasman Roofing
- Tatra Metal Roofing Supply
- Terry Brender's Superior Cedar
- Thermo Manufacturing
- Tin Man Metal Roofing Sales
- Tin Men Supply Inc
- Top Side Building Supply Co
- Total Roof Supply Inc
- Tremco Manufacturing Co
- Truett Britt Building Material
- Truss Inc
- United Products Corp
- USTNT
- Washington Cedar & Supply Co
- Watkins Materials
- Watson Metals
- Wawawai Group Inc
- Wawawai Group Inc
- Weather-Tek Building Products
- West Dent Lumber
- West End Lumber Co
- West End Lumber Co
- West End Lumber Inc
- Westend Roofing
- Western Allied Systems
- Western Cedar Inc
- Western Cedar Inc
- Woodfeathers Inc
- Woodfeathers Inc
