| IAT | IATSE | IAV | IAWS | IBAL | IBCC | IBE | IBFAN | IBIS | IBM | IBO | IBPA |
| IATA | IATTC | IAVA | IAX | IBAN | IBCLC | IBEA | IBFRA | IBIT | IBMA | IBOA | IBPFM |
| IATAS | IATTM | IAVAT | IAYC | IBB | IBCSG | IBEAC | IBG | IBITA | IBMFS | IBOC | IBPGR |
| IATC | IATTO | IAVW | IB | IBBA | IBCT | IBEC | IBGP | IBJ | IBMV | IBOL | IBR |
| IATE | IAU | IAW | IBA | IBBY | IBD | IBEW | IBGT | IBK | IBN | IBOR | IBRA |
| IATF | IAUC | IAWA | IBAA | IBC | IBDF | IBF | IBI | IBL | IBNA | IBOS | IBRF |
| IATM | IAUP | IAWF | IBAC | IBCA | IBDV | IBFA | IBICS | IBLP | IBNS | IBP | IBRO |
| IATP | IAUPE | IAWG |