International Union of Crystallography
ActiveLicence & visa routes
An A rating means the sponsor currently meets Home Office duties and can issue Certificates of Sponsorship; a B rating means a time-limited action plan is in place.
Companies House changes
Run a live check≈3.3 in 100 such sponsors lost their licence within 7 months. Score uses register data only — a live check adds the full Companies House record.
Reporting duties
- 29 Jul 2026 — Registered office address changed. Report via SMS within 20 working days · window closed 26 Aug 2026 — if this was not reported, the licence is at risk
- 14 Aug 2025 — Notification of Mr Ahmad Issam Maadarani as a person with significant control. New licence required within 20 working days · window closed 11 Sept 2025 — if this was not reported, the licence is at risk
- 14 Aug 2025 — New director appointed: MAADARANI, Ahmad Issam. Report via SMS within 20 working days · window closed 11 Sept 2025 — if this was not reported, the licence is at risk
Deadlines are 20 working days from the change (bank holidays not counted). Companies House cannot show whether the report was made.
- 29 Jul 2026Registered office address changed
- 14 Aug 2025Notification of Mr Ahmad Issam Maadarani as a person with significant control
- 14 Aug 2025New director appointed: MAADARANI, Ahmad Issam
Sponsored jobs
No listings matched yet
Job listings are harvested daily from Reed, Adzuna, Jooble and Careerjet and matched back to the register.
Common questions about International Union of Crystallography
- Is International Union of Crystallography a licensed UK visa sponsor?
- Yes. International Union of Crystallography in Chester holds a UK sponsor licence and appears on the Home Office register of licensed sponsors, where it has been listed since 2020. That means it is permitted to sponsor eligible workers from overseas, though a licence is permission to sponsor rather than a guarantee that any particular vacancy is open to sponsorship.
- What visa routes can International Union of Crystallography sponsor?
- International Union of Crystallography is licensed for Skilled Worker. Its licence is recorded on the register as "Worker (A rating)" — the rating reflects the Home Office's confidence in the sponsor's compliance record.
- Where is International Union of Crystallography based?
- The register lists International Union of Crystallography at Chester. This is the address on the sponsor licence, which is usually the head office — a sponsored role may be based at a different site.
- How current is this information?
- This page is built from the UK Home Office register of licensed sponsors. We resync the register daily and keep a dated history of every addition and removal. The register itself is the authoritative source — always confirm on GOV.UK before relying on a licence status.
Registration details
- Companies House
- Not matched
- First on register
- 10 Feb 2020
- Website
- iucr.org/home/contact-us
- Profile
More in Chester
Source: UK Home Office register of licensed sponsors (updated daily) and Companies House. "First on register" is when this organisation first appeared in our data, not the official licence grant date.