| Retail Execution | Retail Management | 4k | 18k |
| RESTful API Modeling Language (RAML) | Machine Learning & Artificial Intelligence | 3.8k | 11k |
| Recruitment Cost | Recruitment, Hiring & Onboarding | 3.8k | 6.9k |
| Returns Management | Supply Chain | 3.7k | 7.8k |
| Return on Assets (ROA) | Budgeting, Planning & Strategy | 3.6k | 21k |
| Renewal Tracking | Operations | 3.6k | 6.7k |
| Revenue Assurance | Other | 3.6k | 9.9k |
| RegTech | Finance IT | 3.5k | 12k |
| Real Estate Investment Trusts | Other | 3.4k | 16k |
| REITs (Real Estate Investment Trusts) | Trading & Investing | 3.4k | 16k |
| Relative Strength Index (RSI) | Trading & Investing | 3.4k | 11k |
| RNA Sequencing | Life Science | 3.2k | 16k |
| Real-time Polymerase Chain Reaction | Life Science | 3.2k | 11k |
| Radiopharmaceutical | Medical Treatment | 3.2k | 22k |
| Rich Media | Ad Tech | 3.2k | 8.7k |
| Relocation Services | Programs and Services | 3.1k | 11k |
| Refrigeration Servicing | Standards & Regulatory | 3.1k | 17k |
| Remote Diagnostics | Manufacturing | 3.1k | 8.8k |
| Rural Health | Medical Specialty | 3.1k | 32k |
| Reduced Instruction Set Computer (RISC) | Hardware | 2.9k | 15k |
| Retail Analytics | Retail Technology | 2.9k | 7k |
| Rational Unified Process (RUP) | Product Development & QA | 2.9k | 8.6k |
| RF Circuit | Other | 2.7k | 12k |
| Radio Advertising | Channels & Types | 2.6k | 4.9k |
| Revenue Enablement | Budgeting, Planning & Strategy | 2.6k | 7k |