Cities
In Germany
- Saarbrücken
- Schwalbach am Taunus
- Schwerte
- Schwetzingen
- Schwäbisch Hall
- Siegen
- Solingen
- Starnberg
- Steinbach (Taunus)
- Stuttgart
- Sulzbach (Taunus)
International
Travel Agencies
In Germany
- SWP Reiseservice - Ulm
- Sarea Reiseservice - Dresden
- Schlagheck - Nottuln
- Schlagheck - Dülmen
- Schlagheck - Coesfeld
- Schmidt & Partner - Bochum
- Schmitz Wittlich - Wittlich
- Schniewind - Köln
- Schwamborn - Lohmar
- Schweizer - Waldachtal
- Schweizer - Nagold
- Schäfer - Erfurt
- Schäfer am Ring - Erfurt
- Senator Reisen - Berlin
- Siegerland - Siegen
- Sonnenschein - Saarbrücken
- Steffen's Reisewelt - Kehl
- Stehning - Rheine
- Striffler - Mainz
- Südbaden - Müllheim
International
- ST Travel - Prague
- STI Travel - Baku
- Safe Harbors - Bel Air
- Saimon Air Travels - Dhaka
- Salbusiness 1929 - Bologna
- Saltours International - Karachi
- Sana Tourism - Khobar
- Santini Viaggi - Fabriano
- Sar-El Tours - Sar-El
- Sati - Tehran
- Scanworld - Danderyd
- Schooner Viaggi - Milan - Casatenovo
- Secontur - Buenos Aires
- Sepehr Parvaz - Tehran
- Seti First Travel - Cairo
- Shafagh Tours - Isfahan
- Sirius Travel - Lisbon
- Sirius Travel - Porto
- Skotte Business Travel - Kastrup
- Socaltur Turismo - Novo Hamburgo
- Soleans Service - St. Petersburg
- Springer Reisen - Klagenfurt
- Sudameria - Buenos Aires
- Supertour - Warsaw
- Susana Piriz Viajes - Rosario