| Sidiq Soeharto | 🍎 | 1 | — | Business |
| Sidus Link Ltd. | 🍎 | 1 | 2.9★ | Productivity |
| Siegfried Bauer | 🍎 | 1 | 4.4★ | Utilities |
| Siemens AG | 🍎 | 1 | 4.7★ | Business |
| Siemens Digital Logistics GmbH | 🍎 | 1 | 5.0★ | Productivity |
| Siento - Share, Heal, Connect | 🍎 | 1 | 5.0★ | Health & Fitness |
| Sierra Burkhart | 🍎 | 1 | — | Reference |
| Sierra Trading Post Inc. | 🍎 | 1 | 2.2★ | Shopping |
| Sierra Vista Software | 🍎 | 1 | 4.6★ | Education |
| Sierra Wireless | 🍎 | 1 | — | Utilities |
| SierraBooks LLC | 🍎 | 1 | 5.0★ | Productivity |
| SierraLingo.LLC | 🍎 | 1 | 4.6★ | Sports |
| Sifu Edu & Learning Sdn Bhd | 🍎 | 1 | — | Education |
| Sig Sauer, Inc. | 🍎 | 1 | 4.7★ | Lifestyle |
| SightPlan | 🍎 | 1 | 3.2★ | Business |
| Sigma Alimentos Corporativo S.A. de C.V. | 🍎 | 1 | — | Food & Drink |
| Sigma Game Limited | 🍎 | 1 | 4.3★ | Games |
| Sigma Nation LLC | 🍎 | 1 | 5.0★ | Health & Fitness |
| Sigma Phi Epsilon Fraternity Inc | 🍎 | 1 | 3.7★ | Business |
| Sigma Systems Inc | 🍎 | 1 | 4.4★ | Finance |
| SigmaBrowser OÜ | 🍎 | 1 | 5.0★ | Productivity |
| SigmaLedger, Inc. | 🍎 | 1 | 4.9★ | Shopping |
| Sign In Solutions LLC | 🍎 | 1 | 4.7★ | Business |
| SignGlasses | 🍎 | 1 | 5.0★ | Education |
| SignPilot LLC | 🍎 | 1 | — | Lifestyle |
| SignSchool Technologies LLC | 🍎 | 1 | 4.5★ | Education |
| Signal Messenger, LLC | 🍎 | 1 | 4.7★ | Social Networking |
| Signal Software Ltd | 🍎 | 1 | 3.6★ | Utilities |
| Signal Stuff | 🍎 | 1 | 4.9★ | ENTERTAINMENT |
| Signant Health Oy | 🍎 | 1 | 2.5★ | Medical |
| Signatic LTD | 🍎 | 1 | 2.0★ | Social Networking |
| Signature Motor Club, Inc. | 🍎 | 1 | 3.9★ | Travel |
| Signature System Inc | 🍎 | 1 | 3.8★ | Business |
| Signature experience S.a.l | 🍎 | 1 | 5.0★ | Travel |
| Signaturize Ltd | 🍎 | 1 | 4.4★ | Education |
| Signer Labs | 🍎 | 1 | — | Developer Tools |
| Signifium LLC | 🍎 | 1 | 4.5★ | Productivity |
| Signs and Smiles Inc. | 🍎 | 1 | 4.8★ | Education |
| Sigurd Wainwright | 🍎 | 1 | 4.7★ | Utilities |
| Siham Derouiche | 🍎 | 1 | 3.3★ | Games |
| Siiling OU | 🍎 | 1 | — | News |
| Siin Social Commerce Marketplace | 🍎 | 1 | 4.7★ | Shopping |
| Siku VertriebsgmbH | 🍎 | 1 | — | Utilities |
| Silas Friedrich | 🍎 | 1 | 4.4★ | Games |
| Silas Rowe | 🍎 | 1 | 4.1★ | Games |
| Silent Blessings Deaf Ministries, Inc. | 🍎 | 1 | 5.0★ | Education |
| Silicon Valley Tablet Company | 🍎 | 1 | 5.0★ | Developer Tools |
| Silk and Sonder Inc | 🍎 | 1 | 4.9★ | Health & Fitness |
| SilkIdea s.r.o. | 🍎 | 1 | 5.0★ | Navigation |
| Silknet | 🍎 | 1 | 3.2★ | Entertainment |