Seb
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
- 1 Jan 2026 — New person with significant control: Mr Sebastian Douglas Leonard Clark. Report via SMS within 20 working days · window closed 29 Jan 2026 — if this was not reported, the licence is at risk
- 1 Jan 2026 — Cessation of Mr Sebastian Douglas Leonard Clark as a person with significant control. Report via SMS within 20 working days · window closed 29 Jan 2026 — if this was not reported, the licence is at risk
- 29 May 2025 — New person with significant control: For Sale Visit Www.Buythiscompanyname.Co.Uk Ltd. Report via SMS within 20 working days · window closed 26 Jun 2025 — if this was not reported, the licence is at risk
- 29 May 2025 — Cessation of Mrs Virginia Olive Clark as a person with significant control. Report via SMS within 20 working days · window closed 26 Jun 2025 — if this was not reported, the licence is at risk
- + 4 earlier duties
Deadlines are 20 working days from the change (bank holidays not counted). Companies House cannot show whether the report was made.
- 1 Jan 2026New person with significant control: Mr Sebastian Douglas Leonard Clark
- 1 Jan 2026Cessation of Mr Sebastian Douglas Leonard Clark as a person with significant control
- 29 May 2025New person with significant control: For Sale Visit Www.Buythiscompanyname.Co.Uk Ltd
- 29 May 2025Cessation of Mrs Virginia Olive Clark as a person with significant control
- 29 May 2025Secretary resigned: CLARK, Virginia Olive
- 29 May 2025New corporate-director appointed: FOR SALE VISIT WWW.BUYTHISCOMPANYNAME.CO.UK LTD
- + 2 earlier events
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 Seb
- Is Seb a licensed UK visa sponsor?
- Yes. Seb in London holds a UK sponsor licence and appears on the Home Office register of licensed sponsors, where it has been listed since 2013. 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 Seb sponsor?
- Seb is licensed for Global Business Mobility: Senior or Specialist Worker and 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 Seb based?
- The register lists Seb at VISIT HTTP://WWW.BUY-THIS-COMPANY-NAME.CO.UK, 25 South Road, Saffron Walden, Essex, CB11 3DG. 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, alongside Companies House records for company number 06995131. The register itself is the authoritative source — always confirm on GOV.UK before relying on a licence status.
Registration details
- Companies House
- 06995131
- Address
- VISIT HTTP://WWW.BUY-THIS-COMPANY-NAME.CO.UK, 25 South Road, Saffron Walden, Essex, CB11 3DG
- First on register
- 4 Aug 2013
- Website
- 4basebio.com
- Profile
More in London
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.