- Advent Lutheran, Mattituck
- Assembly of God, Hampton Bays
- Beach United Methodist Church, Westhampton Beach*
- Bellport United Methodist Church
- Bridgehampton Presbyterian Church, Bridgehampton
- Calvary Baptist Church, Riverhead*
- Christ Episcopal Church, Sag Harbor*
- Christ Our Savior Lutheran, Hampton Bays*
- Church of Saint Agnes, Greenport*
- Christian Science Society
- Community Christian Fellowship, Mattituck
- East Hampton United Methodist, East Hampton*
- Episcopal Church of The Redeemer, Mattituck
- First Baptist Church of Riverhead, Riverhead
- First Presbyterian Church of East Hampton, East Hampton
- First Presbyterian Church of Southampton, Southampton*
Participating Houses of Worship
- First Presbyterian Church of Southold, Southold*
- First United Methodist Church of East Hampton, East Hampton*
- Grace Lutheran Church, Mastic Beach*
- Grace Presbyterian Church
- Greek Orthodox Church of the Hamptons, Southampton
- Hamptons Church, Wainscott
- Hamptons United Methodist Church, Southampton*
- Hampton Bays United Methodist Church, Hampton Bays*
- Immaculate Conception RC, Westhampton Beach*
- Jewish Center of the Hamptons, East Hampton
- Montauk Community Church, Montauk
- Most Holy Trinity, East Hampton
- North Shore United Methodist Church, Wading River
- Old Steeple Community Church, Aquebogue
- Our Lady of Poland R.C. Church, Southampton
- Our Redeemer Lutheran, Aquebogue*
- Queen of the Most Holy Rosary
- Sacred Heart R.C., Cutchogue*
- Saint Luke’s Episcopal Church, East Hampton
- Saint Mary’s Episcopal, Hampton Bays*
- Saint Michael’s Lutheran, East Hampton
- Saint Peter’s Lutheran, Greenport*
- St. Anselm’s, Shoreham
- St. John’s Episcopal, Southampton
- St. Mark’s Episcopal Church, Westhampton
- St. Rosalie’s Church, Hampton Bays
- St. Patrick’s RC, Southold*
- Southampton United Methodist Church, Southampton*
- Temple Adas Israel, Sag Harbor
- Temple Israel of Riverhead, Riverhead
- The Truth Community Church, Flanders*
- United Universal Congregation, Sag Harbor
- Unitarian Universalist Congregation of the South Fork, Bridgehampton
- Westhampton Presbyterian Church, Westhampton*
*Served as a Host Site for our 2019-2020 Emergency Winter Shelter Program