Team collaboration
London International School

All Certifications

120+ role-specific and general English certifications. Priced per module — take one level or all five. Independent proof you can use anywhere.

LIS Fluency & Clarity ScaleNot CEFR — our own independent standard
LIS-1
Threshold
Basic communication
LIS-2
Capable
Clear in everyday contexts
LIS-3
Proficient
Fluent across most contexts
LIS-4
Advanced
Polished & precise
LIS-5
Distinguished
Exceptional clarity & command

Our scale measures demonstrated fluency, vocabulary range, pronunciation clarity, and contextual appropriateness. Being a native English speaker is no guarantee of a high score — a non-native speaker with polished delivery and specialist vocabulary will consistently outperform a native speaker with poor communication habits.

Everyday Spoken English
Spoken & Social
5 modules
LIS-S001

Everyday Spoken English

Certify your natural conversational ability for social, family, and leisure contexts. Assessed via live spoken scenarios — any fluency level welcome.

£49/ module
90 min / module · 5 levels total
LIS Scale
LIS-1 – LIS-5
ConversationalSocialFamilyTravel
English for Travel & Tourism
Spoken & Social
3 modules
LIS-S002

English for Travel & Tourism

For those who travel frequently or work in tourism. Covers airports, hotels, directions, and cultural conversation.

£49/ module
60 min / module · 3 levels total
LIS Scale
LIS-2 – LIS-3
TravelTourismHospitality
Business English Writing
Business
4 modules
LIS-B001

Business English Writing

Professional emails, reports, proposals, and memos. Assessed against real-world workplace writing standards.

£59/ module
2 hrs / module · 4 levels total
LIS Scale
LIS-3 – LIS-4
EmailsReportsProposals
Meetings & Presentations
Business
3 modules
LIS-B002

Meetings & Presentations

Spoken certification for business meetings, chairing discussions, and delivering presentations in English.

£59/ module
90 min / module · 3 levels total
LIS Scale
LIS-3 – LIS-4
MeetingsPresentationsNegotiation
Customer-Facing English
Business
3 modules
LIS-B003

Customer-Facing English

For retail, hospitality, and service roles. Covers complaints handling, upselling, and client communication.

£49/ module
75 min / module · 3 levels total
LIS Scale
LIS-2 – LIS-3
RetailCustomer ServiceHospitality
Medical English — Doctor
Medical & Health
5 modules
LIS-M001

Medical English — Doctor

For GPs and hospital doctors. Patient consultations, history-taking, diagnosis communication, and clinical documentation.

£89/ module
2.5 hrs / module · 5 levels total
LIS Scale
LIS-4 – LIS-5
DoctorsGPHospital
Medical English — Nursing
Medical & Health
4 modules
LIS-M002

Medical English — Nursing

For registered nurses and healthcare assistants. Patient handover, care planning, and ward communication.

£69/ module
2 hrs / module · 4 levels total
LIS Scale
LIS-3 – LIS-4
NursesHealthcare Assistants
Dental English
Medical & Health
3 modules
LIS-M003

Dental English

For dentists and dental hygienists. Patient communication, treatment explanation, and clinical record writing.

£69/ module
2 hrs / module · 3 levels total
LIS Scale
LIS-3 – LIS-4
DentistsDental Hygienists
Pharmacy English
Medical & Health
3 modules
LIS-M004

Pharmacy English

For pharmacists and pharmacy technicians. Medication counselling, patient queries, and prescription communication.

£69/ module
90 min / module · 3 levels total
LIS Scale
LIS-3 – LIS-4
PharmacistsPharmacy Technicians
Legal English — Solicitor
Legal
5 modules
LIS-L001

Legal English — Solicitor

Client advising, contract language, courtroom spoken English, and legal correspondence for solicitors and barristers.

£89/ module
2.5 hrs / module · 5 levels total
LIS Scale
LIS-4 – LIS-5
SolicitorsBarristers
Legal English — Paralegal
Legal
3 modules
LIS-L002

Legal English — Paralegal

For paralegals and legal executives. Case documentation, client communication, and legal research writing.

£69/ module
2 hrs / module · 3 levels total
LIS Scale
LIS-3 – LIS-4
ParalegalsLegal Executives
Engineering English
Technical & Science
4 modules
LIS-T001

Engineering English

For civil, mechanical, and electrical engineers. Technical report writing, specification language, and stakeholder communication.

£69/ module
2 hrs / module · 4 levels total
LIS Scale
LIS-3 – LIS-4
CivilMechanicalElectrical
Scientific English
Technical & Science
4 modules
LIS-T002

Scientific English

For researchers, scientists, and lab professionals. Abstract writing, peer communication, and data presentation.

£79/ module
2 hrs / module · 4 levels total
LIS Scale
LIS-4 – LIS-5
ResearchersScientistsLab
IT & Technology English
Technical & Science
3 modules
LIS-T003

IT & Technology English

For software developers, IT managers, and tech support. Documentation, client briefs, and technical explanation.

£59/ module
90 min / module · 3 levels total
LIS Scale
LIS-3 – LIS-4
DevelopersIT ManagersTech Support
Police English
Public Service
5 modules
LIS-P001

Police English

For police officers and detectives. Witness interviewing, incident reports, courtroom testimony, and public communication.

£89/ module
2.5 hrs / module · 5 levels total
LIS Scale
LIS-4 – LIS-5
Police OfficersDetectives
Social Work English
Public Service
4 modules
LIS-P002

Social Work English

For social workers and care coordinators. Case notes, family interviews, multi-agency communication, and safeguarding language.

£69/ module
2 hrs / module · 4 levels total
LIS Scale
LIS-3 – LIS-4
Social WorkersCare Coordinators
Aviation English
Public Service
5 modules
LIS-P003

Aviation English

For airline pilots, air traffic controllers, and cabin crew. Spoken communication for international aviation professionals.

£89/ module
2 hrs / module · 5 levels total
LIS Scale
LIS-4 – LIS-5
PilotsATCCabin Crew
About our fluency levels
LIS-1
Threshold
Basic communication

Can convey basic needs and ideas in familiar contexts. Speech or writing may be hesitant, with limited vocabulary and frequent errors that sometimes impede understanding.

LIS-2
Capable
Clear in everyday contexts

Communicates clearly in everyday and social situations. Some vocabulary gaps and occasional hesitation, but meaning is consistently understood by the listener.

LIS-3
Proficient
Fluent across most contexts

Fluent and clear across a wide range of professional and social situations. Vocabulary is broad and precise; pronunciation and writing are consistently easy to follow.

LIS-4
Advanced
Polished & precise

Highly polished delivery with strong command of nuance, register, and domain-specific vocabulary. Communicates with confidence and accuracy across all assessed contexts.

LIS-5
Distinguished
Exceptional clarity & command

Exceptional fluency, clarity, and vocabulary richness. Adapts effortlessly to any audience or context. The highest LIS certification level — awarded to fewer than 8% of candidates.