- Saratoga Hospital
- School of Public Health at the University at Albany
- Schuyler Hospital
- Scientific Equipment and Furniture Association
- SCODE
- Sea Services
- Siena Village Inc.
- Sino Television, Inc.
- Sisters of Charity Hospital
- Sisters of Charity Hospital, St. Joseph Campus
- Sisters of the Catholic Apostolate Pallottines)
- Soldiers and Sailors Memorial Hospital
- Sorrento Lactalis, Inc.
- South Nassau Communities Hospital
- Southside Hospital
- Spry Learning Co.
- SR Scales
- St. Ann's Community
- St. Anthony Community Hospital
- St. Barnabas Hospital
- St. Catherine of Siena Medical Center
- St. Charles Hospital
- St. Francis Hospital
- St. James Community Health Council
- St. John's Episcopal Hospital
- St. John's Riverside Hospital - Andrus
- St. Joseph Hospital
- St. Joseph's Hospital
- St. Mary's Hospital at Amsterdam
- St. Ursula Center
- Standard and Poor's
- State Senator John C. Liu
- Staten Island University Hospital North
- Staten Island University Hospital South
- Stony Brook Eastern Long Island Hospital
- Stony Brook Southampton Hospital
- Stony Brook University
- Stony Brook University Hospital
- Sunshine Sachs Consultants
- SUNY Downstate Medical Center
- SUNY Old Westbury
- SUNY Update Medical University Department of Family Medicine
- SUNY Upstate Medical University
- SWBR Architure
- Syosset Hospital
- Syracuse Convention and Visitors Bureau
- Target Vision
- TD Waterhouse Bank
- Teletech Holdings, Inc.
- The Algonquin Hotel