Sources & methodology
CrewVisa uses only official UK Government and Home Office sources. No private datasets, paid APIs or third‑party scrapers are used. All data is taken directly from publicly available GOV.UK publications and Home Office statistical releases.
| Dataset | Coverage | Source file |
|---|---|---|
| Entry Clearance Visa Outcomes | 2005–2025 Q4 | entry-clearance-visa-outcomes-datasets-dec-2025.xlsx |
| Occupation & SOC 2020 Codes | 2021–2025 Q4 | occupation-soc2020-visas-datasets-dec-2025.xlsx |
| Work Sponsorship (CoS) | 2010–2024 Q4 | migration-work-sponsorship-datasets-dec-2024.xlsx |
| In-Country Extensions | 2010–2025 Q4 | extensions-datasets-dec-2025.xlsx |
make refresh-govuk-corpus to update.— We extract only publicly available GOV.UK and Home Office documents.
— Data is cleaned and normalised before being used in the product.
— Policy text is summarised but never altered or re‑interpreted.
— Chat responses use retrieval‑augmented generation (RAG) to stay grounded in indexed sources.
— Official guidance changes frequently — users should verify critical details on GOV.UK.
— Some datasets update quarterly or annually, so recent months may lag.
— CrewVisa provides information, not legal advice.
Migration & Career Routes (P2b)
Branching goals and routes with links to GOV.UK pages for each step.
1. WORK
Steps:
- Find a job → https://www.gov.uk/find-a-job
- Apply for a work visa → https://www.gov.uk/work-visa
Sources: