| Reporting and Disclosure | Legal & Regulatory | 1.8M | 20M |
| Repair and Recovery | Operating System | 881k | 7.4M |
| Recruiting / Career Management | Recruitment, Hiring & Onboarding | 859k | 11M |
| Retirement Planning | Employee Services | 391k | 4.1M |
| Recordkeeping | Taxation | 370k | 1.5M |
| Risk Management | Business Solutions | 365k | 3.3M |
| Remote Working | Place of Work | 332k | 2.4M |
| ROI Analysis | Strategy & Analysis | 300k | 1.1M |
| Regulatory Compliance | Compliance & Governance | 292k | 1.4M |
| Risk Analysis | Budgeting, Planning & Strategy | 281k | 1.8M |
| Resource Management | Training & Development | 268k | 1.2M |
| Referral Program | Budgeting, Planning & Strategy | 265k | 2.7M |
| Risk Assessment | Business Finance | 262k | 1.6M |
| Real Estate | Trading & Investing | 259k | 1.6M |
| Retirement Savings / 401(k) | Benefits | 241k | 5.6M |
| Routing and Switching | IT Management | 230k | 1.2M |
| Revision Management | Software Engineering | 225k | 1.3M |
| Religion, Belief and Spirituality | Diversity | 215k | 6.9M |
| Research and Development / Test | Product Development & QA | 208k | 1.5M |
| Resource Allocation | Budgeting, Planning & Strategy | 196k | 714k |
| Root Cause Analysis (RCA) | Software Engineering | 171k | 1.1M |
| Reconnaissance & Surveillance | Other | 153k | 1.2M |
| Relays | Hardware | 143k | 838k |
| Routers | Networking | 126k | 491k |
| Route-to-Market | Sales | 120k | 646k |