- Sendylo - Parcel shipping
- Senec
- SENIMY
- Sioslife
- Senior Dating - mature singles
- SeniorMatch® - Dating Over 50
- Senior X Social
- SeniorTalk
- Sensato Condomínios
- SENSE Community App
- Psychology: Happy Little Thing
- Sentab
- Senyonet
- Senyonet VAR
- Senyonet Yönetici
- SeoChat
- Sequoia Ampersand
- Serendipity
- Serendipity Labs - US
- Lupa Fitness Den
- Serializd
- Serie i
- Series-Time
- Serilancer
- Sero (formerly iBlink Radio)
- Servicelovers
- Servicelovers 2.0
- Servis Portaria Autônoma
- Servizi at Home
- Sesame, by CANDY HOUSE
- SESI SENAI Educação
- Session - Private Messenger
- SessionCloud SIP Softphone
- SessionTalk Pro Softphone
- SessionTalk SIP Softphone
- Setec Cloud
- SETMYSTYLE
- Seturday
- Seval Condomínios
- Seval Özkan