- Roesbery Laboratories
- Romark Laboratories LC
- Rowe Construction Laboratory
- RSS Laboratories Inc
- RSS Laboratories Inc
- Sacred Heart Laboratory Svc
- Saint Joseph's Clinical Lab
- Salter Labs
- Satelitte Labs
- Satellite Lab Svc
- SBP
- Schering Laboratories
- Scientific Laboratory LLC
- Seachem Laboratories
- Seal Labs Perfect
- Sekot Laboratories Inc
- Semmaterials LP
- Sig Iowa Lab
- Sinclair Research Ctr
- Siouxland Labs
- Sita Laboratories Inc
- Skarshaug Testing Lab
- Sky Lab
- Sleep Lab
- Sleep Lab At Diagnostic Health
- Smithkline Lab
- Sound Lab Recorders
- South Florida Lab Inc
- Southern Kentucky Dental Lab
- Southern Kentucky Dental Lab
- Speciality Laboratories Inc
- Specialty Lab In Care
- Specialty Laboratories Inc
- Specialty Laboratories Inc
- Specialty Labroratories
- Specialty Labroratories
- Spectra Lab
- Spectra Lab
- Spectrum Laboratory Network
- Spectrum Labs Alpharetta Psc
- SPL Clinical Laboratory Svc
- Spring Grove Labs
- St Lucie Dental Laboratory
- St Mary's Minot Avenue Lab
- Standard Laboratories Inc
- Standard Laboratories Inc
- State Federal Lab
- State-Illinois Materials Lab
- Stiefel Laboratories
- Sun Labs Bloodtest
- Suncoast Clinical Laboratories
- Suncoast Labs
- Suncoast Labs
- Suncoast Labs
- Superior Lab Svc
- Superior Lab Svc
- Swim Lab Inc
- Synergy Laboratory Svc
- Synergy Labs
- Synergy Labs
- Synquest Laboratories Inc
- Tdm Labs Inc
- Technique Laboratories
- Theochem Laboratories
- Thibodeau Vaughn Lab
- Thornton Laboratories Inc
- Time Labs
- Tjs Labs Inc
- Total Renal Laboratories
- Total Renal Laboratories
- Total Renal Laboratories
- Track Lab Studio
- Treasure Valley Laboratory Inc
- Treasure Valley Labs
- Treasure Valley Labs
- Treasure Valley Labs Inc
- True Color Pro Color Lab
- UDL Laboratories
- Ultimate Lab Creations
- United Laboratories
- United Laboratory
- Usda Ams S & T Lab
- Vanco Emsee Labs
- Vascular Laboratory
- Venture Labs
- Venture Labs
- Venture Labs
- Vicki Lab
- Vidalia Labs
- Villages Clinical Laboratories
- Viro-Med Laboratories Inc
- Vita-Vet Laboratories
- Vitarich Laboratories
- Vitarich Laboratories
- Von Hawk Art Restoration Labs
- Walkwell Labs
- Wampole Laboratories
- Watson Labs
- Weland Laboratory
- Wells Laboratory Specialists
- Wells Laboratory Specialists
- West Hawaii Dental Lab Inc
- Whitney Marine Lab-University
- Wildlife Research Lab
- Wing Lab
- Wolf Lab
- World Diagnostics Lab Corp
- Wyle Laboratories Inc
- Zanfel Laboratories
- Zanfel Labs
- Zanfel Labs
