| IRCA | IL Recreational Cheerleading Assoc 
| Others |
| IRCA | Illinois Recreational Cheerleading Association
| Others |
| IRCA | Illinois Roof Consulting Associates
| Others |
| IRCA | Indian Railway Conference Association
| Others |
| IRCA | Indiana Resource Center for Autism
| Others |
| IRCA | Indiana Roofing Contractors Association
| Others |
| IRCA | Indigenous Remote Communications Association
| Others |
| IRCA | Indigenous Research Center of the Americas
| Others |
| IRCA | Industrial Revenue Collection Area
| Others |
| IRCA | Information Reform and Control Act
| Others |
| IRCA | Instant Reach Client Advertising
| Others |
| IRCA | Institut Royal de la Culture Amazighe
| Others |
| IRCA | Integration Repository Creation Assistance
| Others |
| IRCA | Interest Rate Cap Agreement
| Others |
| IRCA | Interkingdom Rules Committee For Amtgard
| Others |
| IRCA | International Radio Club of America
| Others |
| IRCA | International Ragdoll Cat Association
| Others |
| IRCA | International Ragdoll Cats Association
| Others |
| IRCA | International Railway Congress Association
| Others |
| IRCA | International Railways of Central America
| Others |
| IRCA | International Real Combat Association
| Others |
| IRCA | International Register of Certificated Auditor
| Others |
| IRCA | International Register Of Certificated Auditors
| Others |
| IRCA | International Register of Certified Auditors
| Others |
| IRCA | International Register of Civil Aircraft
| Others |
| IRCA | International Reupholstery Corporation of America
| Others |
| IRCA | International Risk Control Academy
| Others |
| IRCA | International Rural Churches Association
| Others |
| IRCA | Iowa Rodeo Cowboys Association
| Others |
| IRCA | Iowa Roofing Contractors Association
| Others |