| Regulatory Research Associates | Academic & Science |
| Reiulf Ramstad Architects | Academic & Science |
| Richard Rude Architectural | Academic & Science |
| Religious Research Association | Academic & Science |
| Radio Research Agency | Academic & Science |
| River Research and Applications | Academic & Science |
| Rural Research Appraisal | Academic & Science |
| River Ridge Academy | Academic & Science |
| Revenue Reconciliation Act of 1990 | Accounts and Finance |
| Rock River Arms | Business |
| Ridgecrest Redevelopment Agency | Business |
| Relative Risk Aversion | Business |
| Rappahannock Recreation Association | Community |
| Regional Reporters Association | Community |
| Reconstructionist Rabbinical Association | Community |
| Rockland Repeater Association | Community |
| Rodrigues Regional Assembly | Computing |
| Rotate Right Accumulator | Computing |
| Remote Record Access | Computing |
| Reservation Random Access | Computing |
| Rotating Rectifier Assembly | Computing |
| Real Rock Album | General |
| Retirement Reimbursement Arrangement | General |
| Residual Reduction Algorithm | General |
| Retiree Reimbursement Account | General |
| Registered Record Administrator | General |
| Representable Relation Algebras | General |
| Raleigh Record Ace | General |
| Route Risk Assessment | General |
| Red River Aspect | General |
| Risk Readiness Assessment | General |
| Renewable Readiness Assessment | General |
| Registry Registrar Agreement | General |
| Russell Reynolds Associates | General |
| Renewables Readiness Assessment | General |
| Roof Rack Anodized | General |
| Roadside Rest Area | General |
| Redactie Raadt Aan | General |
| Roadside Responders Association | General |
| Road Roller Association | General |
| Realisateurs de Reves Automobiles | General |
| Refugee and Repatriate Assistance | General |
| Retiree Reimbursement Arrangement | General |
| Ransomware Readiness Assessment | General |
| Robust Rank Aggregation | General |
| Remote Regulatory Assessments | General |
| Rittenhouse Realty Advisors | General |
| Retirement Resource Account | General |
| Resource Recovery Act | General |
| Retail Refill Allowance | General |
| Relevancy Reviews and Accessibility | General |
| Rural Rangeland Archive | General |
| Rahanweyne Resistance Army | Governmental |
| Rahanweyn Resistance Army | Governmental |
| Railroad Retirement Act | Governmental |
| Race Relations Act | Governmental |
| Restructuring and Reform Act | Governmental |
| Reclamation Reform Act | Governmental |
| Radiology Research Alliance | Governmental |
| Red River Authority | Governmental |
| Risk Reduction Authority | Governmental |
| Rwanda Revenue Authority | Governmental |
| Rutland Redevelopment Authority | Governmental |
| Registered Records Administrator | Jobs |
| Radioreceptor assay | Medical |
| Registered Radiologist Assistant | Medical |
| Rock River Arsenal | Military and Defence |
| Round Robin Archive | Networking |
| Rapid Rural Appraisal | Real Estate |
| Racing Rivals Account | Sports |
