Even the most fluent, native speaker needs to understand the field of work for which he/she are translating so that the context and terminology of the source text are fully understood and the correct meaning conveyed.
You can achieve the ISL Translator Certificate in as many specialisms as you like. The specialisms that you can be certified in are listed in the table below.
| Accounting | Clinical Trials | Entertainment | Import/Export | Optical Equipment | Scripts |
| Advertising | Commerce | Environment | Industrial | Orthopaedics | Social Sciences |
| Aero Engineering | Commercial | Environmental Sciences | Information Technology | Packaging | Social Services |
| Aerospace | Communications | Equity Research | Insurance | Patents | Software |
| Agriculture | Computer Games | EU affairs | Interior Design | Personnel | Software Localisation |
| Annual Reports | Computer Hardware | Fashion | Investment Banking | Pharmaceutics | Sports |
| Archaeology | Computers & Data Processing | Filtration | ISO Documentation | Photography | Stock Markets |
| Architecture & Town Planning | Construction | Finance | Labour Relations | Psychiatry | Subtitling |
| Art | Contracts | Food & Drinks Industry | Law | Physics | Surgical |
| Automotive | Copywriting | Freight | Machine Tools | Physiology | Tax |
| Aviation | Cosmetics | Games & Puzzles | Machinery | Police | Technical |
| Banking | Crime Issues | Gas Industry | Management | Politics | Technology |
| Behavioural Sciences | Culture | Genealogy | Market Research | Press | Telecommunications |
| Biochemistry | Current Affairs | General Engineering | Marketing | Printing & Publishing | Terms & Conditions |
| Biology | Defence | Geography | Mathematics | Psychology | Textiles |
| Biomedicine | Dentistry | Geology | Mechanical Engineering | Public Relations | Tourism |
| Brewing & Distilling | Desktop Publishing | Government | Media | Publishing | Training |
| Broadcasting | Domestic Appliances | Hardware | Medical Equipment | Quality Assurance | Transcription |
| Building | Domestic Science & Crafts | Health | Medicine | Radio / TV | Transport |
| Business | Drama | Health & Safety | Military | Recording | Travel & Tourism |
| Cartography | Economics | History | Music | Regulatory Affairs | Veterinary Science |
| Ceramics | Education | Horticulture | Nuclear Energy | Religious Issues | Water Treatment |
| Chemical Engineering | Electrical Engineering | Hospitality | Nutrition | Robotics | Web Pages |
| Chemistry | Electronics | Humanities | Oil | Safety | Works Council |
| Cinema | Engineering | Immigration | Online Gambling | Sciences | Zoology |
| Civil & Structural Engineering |