| Professional Title | Designatory | Designated Authority |
|---|---|---|
| (where applicable) | Letters | |
| ACTUARY | FIA | Institute of Actuaries |
| ACTUARY (Scotland) | FFA | The Faculty of Actuaries |
| CHARTERED ACCOUNTANT | ACA | The Institute of Chartered Accountants in England and Wales |
| CHARTERED ACCOUNTANT | ACA | The Institute of Chartered Accountants in Ireland |
| CHARTERED ACCOUNTANT | CA | The Institute of Chartered Accountants of Scotland |
| CHARTERED CERTIFIED ACCOUNTANT | ACCA | The Association of Chartered Certified Accountants |
| CHARTERED ARBITRATOR | FCIArb | The Chartered Institute of Arbitrators |
| CHARTERED BIOLOGIST | C.Biol, MIBiol | The Institute of Biology |
| CHARTERED BUILDER | MCIOB | The Chartered Institute of Building |
| CHARTERED BUILDING SERVICES ENGINEER | MCIBSE | The Chartered Institution of Building Services Engineers |
| CHARTERED BUILDING SURVEYOR | MRICS | The Royal Institution of Chartered Surveyors |
| CHARTERED CHEMICAL ENGINEER | MIChemE | The Institution of Chemical Engineers |
| CHARTERED CHEMIST | C.Chem, MRSC | The Royal Society of Chemistry |
| CHARTERED CIVIL ENGINEER | MICE | The Institution of Civil Engineers |
| CHARTERED COLOURIST | C.Col. | The Society of Dyers and Colourists |
| CHARTERED ELECTRICAL ENGINEER | MIEE | The Institution of Electrical Engineers |
| CHARTERED ENERGY ENGINEER | MEI FEI | The Energy Institute |
| CHARTERED PETROLEUM ENGINEER | MEI FEI | The Energy Institute |
| CHARTERED ENGINEER | C.Eng | The Engineering Council |
| CHARTERED ENVIRONMENTAL HEALTH PRACTITIONER | MCIEH FCIEH | The Chartered Institute of Environmental Health |
| ENVIRONMENTAL HEALTH OFFICER | MCIEH FCIEH | The Chartered Institute of Environmental Health |
| CHARTERED ENVIRONMENTAL HEALTH OFFICER | Ch.EHO MREHIS Ch.EHO FREHIS | The Royal Environmental Health Institute of Scotland |
| ENVIRONMENTAL HEALTH OFFICER | EHO MREHIS EHO FREHIS | The Royal Environmental Health Institute of Scotland |
| CHARTERED FORESTER | MICFor | The Institute of Chartered Foresters |
| CHARTERED GAS ENGINEER | MIGasE | The Institution of Gas Engineers and Managers |
| CHARTERED GEOLOGIST | C.Geol FGS | The Geological Society |
| CHARTERED IT PROFESSIONAL | MBCS CITP FBCS CITP | The British Computer Society |
| CHARTERED INSURER | ACII | The Chartered Insurance Institute |
| CHARTERED INSURANCE PRACTITIONER | ACII | The Chartered Insurance Institute |
| CHARTERED INSURANCE BROKER | ACII | The Chartered Insurance Institute |
| CHARTERED LAND SURVEYOR | MRICS | The Royal Institution of Chartered Surveyors |
| CHARTERED LOSS ADJUSTER | ACILA | The Chartered Institute of Loss Adjusters |
| CHARTERED MANAGEMENT ACCOUNTANT | ACMA | The Chartered Institute of Management Accountants |
| CHARTERED MARINE ENGINEER | ImarEST | The Institute of Marine Engineering Science and Technology |
| CHARTERED MARKETER | MCIM | The Chartered Institute of Marketing |
| CHARTERED MATHEMATICIAN | C.Math | The Institute of Mathematics and its Applications |
| CHARTERED MEASUREMENT AND CONTROL TECHNOLOGIST | MlnstMC | The Institute of Measurement and Control |
| CHARTERED MECHANICAL ENGINEER | MIMechE | Institution of Mechanical Engineers |
| CHARTERED METEOROLOGIST | CMET | The Royal Meteorological Society |
| CHARTERED MINERALS SURVEYOR | MRICS | The Royal Institution of Chartered Surveyors |
| CHARTERED PHYSICIST | CPhys MinstP | The Institute of Physics |
| CHARTERED PSYCHOLOGIST | C.Psychol | The British Psychological Society |
| CHARTERED PUBLIC FINANCE ACCOUNTANT | CIPFA | The Chartered Institute of Public Finance and Accountancy |
| CHARTERED QUANTITY SURVEYOR | MRICS | The Royal Institution of Chartered Surveyors |
| CHARTERED SECRETARY | ACIS | The Institute of Chartered Secretaries and Administrators |
| CHARTERED SHIPBROKER | MICS | The Institute of Chartered Shipbrokers |
| CHARTERED STRUCTURAL ENGINEER | MIStructE | The Institution of Structural Engineers |
| CHARTERED SURVEYOR | MRICS | The Royal Institution of Chartered Surveyors |
| CHARTERED TEXTILE TECHNOLOGIST | CText ATI | The Textile Institute |
| CHARTERED TOWN PLANNER | MRTPI | The Royal Town Planning Institute |
| CHARTERED VALUATION SURVEYOR | MRICS | The Royal Institution of Chartered Surveyors |
| CHARTERED WASTE MANAGER | MCIWM | The Chartered Institution of Wastes Management |
| INCORPORATED ENGINEER (REGISTERED AT FINAL STAGE IN THE PROFESSIONAL ENGINEER SECTION OF THE ENGINEERING COUNCIL REGISTER) | I.Eng | The Engineering Council |
| ACIB | The Chartered Institute of Bankers | |
| ACIBS | The Chartered Institute of Bankers in Scotland | |
| MCIH | The Chartered Institute of Housing | |
| MIMMM | The Institute of Materials, Minerals and Mining | |
| MLI | The Landscape Institute | |
| CILIP | The Chartered Institute of Library and Information Professionals | |
| MRAeS | The Royal Aeronautical Society | |
| M. Hort (RHS) | The Royal Horticultural Society | |
| MRINA | The Royal Institution of Naval Architects |