Is Callsign Ltd a licensed UK visa sponsor?

Yes. Callsign Ltd in London is on the Home Office register of licensed sponsors under this name since 2020. It can sponsor workers from overseas, but not every job it advertises comes with sponsorship.

What visa routes can Callsign Ltd sponsor?

Callsign Ltd is licensed for Skilled Worker. Its licence rating on the register is "Worker (A rating)".

Where is Callsign Ltd based?

The register lists Callsign Ltd at 1 Bartholomew Close, London, England, EC1A 7BL. This is usually the head office; the job itself may be somewhere else.

How current is this information?

This page uses the UK Home Office register of licensed sponsors, as published on 2 November 2026, and Companies House records for company number 07277719. We update it daily. Always confirm a licence status on GOV.UK.

All sponsors

Callsign Ltd

Active

LondonTechnology & SoftwareListed under this name since 29 Jul 2020

Can sponsor visas

It is on the Home Office register of licensed sponsors. Not every job it advertises comes with sponsorship.

Visa routes

Skilled Worker

Rating

In good standing

Live jobs

On UK job boards

Licence & visa routes

Routes

Skilled Worker

Licence rating

Worker, A rating

A rating: in good standing. B rating: downgraded and must fix problems before sponsoring new workers.

Open jobs · 1 live

View all

Technical Support Engineer
Manchester, Greater Manchester · £31,798
Live

Companies House changes

Run a live check

15 changes worth checking since it was listed on 29 Jul 2020Checked 2 Nov 2026

22 Jun 2026
Registered office address changed22 Jun 2026
Registered office change recorded on 22 Jun 2026. If the address on your sponsor licence has changed, the change must be reported in the SMS (the Home Office sponsor system) within 20 working days.
17 Nov 2025
Registered office address changed17 Nov 2025
Same rule as the registered office change above.
23 Nov 2023
Registered office address changed23 Nov 2023
Same rule as the registered office change above.

Companies House doesn't show whether a change was reported to the Home Office, so check these against your own records.

Common questions about Callsign Ltd

Is Callsign Ltd a licensed UK visa sponsor?: Yes. Callsign Ltd in London is on the Home Office register of licensed sponsors under this name since 2020. It can sponsor workers from overseas, but not every job it advertises comes with sponsorship.
What visa routes can Callsign Ltd sponsor?: Callsign Ltd is licensed for Skilled Worker. Its licence rating on the register is "Worker (A rating)".
Does Callsign Ltd have any jobs open right now?: We are currently tracking 1 live vacancy from Callsign Ltd on UK job boards. Not every job offers sponsorship, so check the advert or ask the employer.
Where is Callsign Ltd based?: The register lists Callsign Ltd at 1 Bartholomew Close, London, England, EC1A 7BL. This is usually the head office; the job itself may be somewhere else.
How current is this information?: This page uses the UK Home Office register of licensed sponsors, as published on 2 November 2026, and Companies House records for company number 07277719. We update it daily. Always confirm a licence status on GOV.UK.

Registration details

Company number: 07277719
Legal name: CALLSIGN LTD.
Address: 1 Bartholomew Close, London, England, EC1A 7BL
Website: callsign.com

More Technology & Software sponsors in London

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As of 2 November 2026, Callsign Ltd (Companies House 07277719, London) holds an A-rated Worker sponsor licence covering the Skilled Worker route and has appeared on the UK Home Office register of licensed sponsors since 29 July 2020 (source: Borderless, from the GOV.UK register of licensed sponsors and Companies House). The first register date is when we first saw it listed, not the official licence date. Text-only version