| Radio College of Canada | Academic & Science |
| Rachel Carson Center | Academic & Science |
| Recaredo Castillo College | Academic & Science |
| Royal College of Chemistry | Academic & Science |
| Royal College Curepipe | Academic & Science |
| Red Claw Crab | Academic & Science |
| Research Computing Center | Academic & Science |
| Research Computing and Cyberinfrastructure | Academic & Science |
| Regional Climate Center | Academic & Science |
| Ratio of Costs To Charges | Accounts and Finance |
| Rescue Co-ordination Centre | Associations & Organizations |
| Regional Complaints Committee | Banking |
| Reservation Control Center | Business |
| Roaming Cavalry Company | Business |
| Real time credit card | Business |
| Retail Council of Canada | Business |
| Robinson Career Connection | Business |
| Richard Creveling Consultants | Business |
| Rotor Current Control | Business |
| Replacement Cost Coverage | Business |
| Resolution and Collection Corporation | Business |
| Richard Cole Communications | Business |
| Root Certificate Check | Business |
| Roller Compacted Concrete | Business |
| Rotary Cutoff Control | Business |
| Reinforced Carbon-carbon | Chemistry |
| Rutgers Cantonese Club | Community |
| Richmond Community College | Community |
| Redneck Country Club | Community |
| Reston Community Center | Community |
| Resident Club Card™ | Community |
| Roscoff Culture Collection | Community |
| The Rock Community Church | Community |
| Rotary Community Corps | Community |
| Recognition of Current Competency | Community |
| Roman Catholic Church | Community |
| Rachel Carson Council | Community |
| Return Channel for Cable | Computer and Networking |
| Routing Control Centre | Computing |
| Reserve Command Channel | Computing |
| Regional Computer Centre | Computing |
| Research Computing Centre | Computing |
| RTEMS Cross Compiler | Computing |
| Reinforced Cement Concrete | Constructions |
| Riverside City College | Educational Institute |
| Robeson Community College | Educational Institute |
| Rogue Community College | Educational Institute |
| Rappahannock Community College | Educational Institute |
| Roxbury Community College | Educational Institute |
| Randolph Community College | Educational Institute |
| Rockingham Community College | Educational Institute |
| Rockland Community College | Educational Institute |
| Riverside Community College | Educational Institute |
| Remote Collaboration Center | General |
| Remote Centre Compliance | General |
| River Continuum Concept | General |
| Remote Cluster Controller | General |
| Recognition of Current Competencies | General |
| Ringing Choke Converter | General |
| Remotely Created Checks | General |
| Reset and Clock Control | General |
| Rosh Chodesh Club | General |
| Rape Crisis Center | General |
| Regenerative Charging Current | General |
| Ram Club Cab | General |
| Rare Component Cars | General |
| Restorers Car Club | General |
| Reverse Corner Cutting | General |
| Residential Construction Certified | General |
| Residual Current Compensation | General |
| Real Colegio Complutense | General |
| Reinforced Concrete Cement | General |
| Resource Control Consultants | General |
| Remotely Created Check | General |
| Request Change of Component | General |
| Rec.Collecting.Coins | General |
| Radio Control Car | General |
| Recognition of Current Competence | General |
| Rerum Cognoscere Causas | General |
| Reset and Control Circuitry | General |
| Rogers Communication Center | General |
| Rescue Coordination Centers | General |
| Requirements Change Control | General |
| Radio Controlled Clock | General |
| Rear Catalytic Converter | General |
| Renault Car Club | General |
| Radar Cruise Control | General |
| Rear Climate Control | General |
| Retractable Cargo Cover | General |
| Race Car Control | General |
| Race Active Chassis Control | General |
| Renault Clio Cup | General |
| Remote Controlled Car | General |
| Rally Cross Country | General |
| Rally Competitors Club | General |
| Renault Can Clip | General |
| Rental Car Center | General |
| Renaissance City Choir | General |
| Royal Crown Cola | General |
| Regional Carrying Capacity | General |
| Real Carrying Capacity | General |
| Road Construction Company | General |
| Roads Contractor Company | General |
| Russian Car Crashes Compilation | General |
| Razorback Corvette Club | General |
| Rose City Corvettes | General |
| River City Corvettes | General |
| Rochester Corvette Club | General |
| Renegade Corvette Club | General |
| Radio and Car Control | General |
| Remote Climate Control | General |
| Retromobile Club de Courtry | General |
| Rosalie Citroen Club | General |
| Rebels Car Club | General |
| Retro Classics Cologne | General |
| Renault Classic Club | General |
| Retromobiles Club du Castellet | General |
| Retromobile Club Cognacais | General |
| Royal Cars Company | General |
| Retro Car Club | General |
| Rough Car Club | General |
| Race Car Club | General |
| Roadrunner Car Club | General |
| Revolutionary Command Council | Governmental |
| Regional Coordinating Council | Governmental |
| Residential Care Center | Governmental |
| Regulatory Cooperation Council | Governmental |
| Religion Communicators Council | Governmental |
| Regional Control Centre | Governmental |
| Regional Cooperation Council | Governmental |
| Research Coordinating Committee | Governmental |
| Rescue Coordination Centre (Canada) | Governmental |
| Rabbinical Council of California | Governmental |
| Rescue Coordination Center | Governmental |
| Regulation Communication Center | Governmental |
| Revenue Class Code | Governmental |
| Racial Character Class | Governmental |
| Regional Computer Center | Governmental |
| Rollercoaster Commotion | Internet |
| Recognised Current Competencies | Jobs |
| Resident Computer Consultant | Jobs |
| Residential Computer Consultant | Jobs |
| Region Connection Calculus | Maths |
| Mary Babb Randolph Cancer Center | Medical |
| Rape Crisis Centre | Medical |
| Rathke cleft cyst | Medical |
| Red Cell Cast | Medical |
| Regional Cancer Centre | Medical |
| Registered Clinical Counsellor | Medical |
| Right Common Carotid | Medical |
| Rural Community Council | Medical |
| Rotterdam Coronary Calcification Study | Medical |
| Renal Cell Cancer | Medical |
| Renal Cell Carcinoma | Medical |
| Red Cell Concentrate | Medical |
| Regional Contracting Center | Military and Defence |
| Relocation Coordination Center | Military and Defence |
| Rag Chewers Club | Radio Science |
| Regional Court Center | Regional |
| Regional Control Center | Regional |
| Regional Collaboration Centre | Regional |
| Regional Climate Centers | Regional |
| Resumable Canon Character | Softwares |
| Range Commanders Council | Space Science |
| Range Control Center | Space Science |
| Rough Combustion Cutoff | Space Science |
| Rockville Country Club | Sports |
| Rapha Cycling Club | Sports |
| Recompression Chamber | Technology |
| Remote Center Compliance | Technology |
| Radio Common Carrier | Telecommunication |
| Redcar Central | Transport & Travel |