OptiSIM

OptiSIM

OptiSIM provides the most extensive mobile coverage in the UK. Through a roaming agreement with all four major UK operators, this special SIM card accesses an alternative network signal, should the primary network be unavailable for any reason, to ensure connectivity. OptiSIM is ideal for any organisation that needs to stay connected 24/7, such as the Emergency Services, Emergency planners, Utilities and the Security Services. In the private sector, board members and crisis critical personnel, as well as employees operating in remote locations could benefit significantly from OptiSIM.

For Business

Keep employees connected abroad with Cellhire’s international SIM cards. Cellhire provides secure, fast, cost effective mobile connectivity for businesses travelling around the world.

York (World Headquarters)


Cellhire PLC
Clifton Park
York, YO30 5PB
Tel : +44 1904 610610 york@cellhire.com
Best Enterprise Managed Service Customer Solution
Best Mobile/IOT Customer Solution
Best Wholesale Service Provider (above £10M)

Established in 1987

Net Promoter Score of 80

Multiple Global Network Partners

ISO 9001 Certified since 1994

Queens Award for International Trade in 2005

Global Offices, 80+ employees