Business Telco

O2 business SIM-only deals

Request an O2 business SIM-only quote for your connections or team. Review the offer below and tell us your start or renewal timing, number-transfer needs and any additional requirements.

O2 unlimited business SIM

Prices exclude VAT. Terms apply. Confirm any additional requirements before ordering.

Compare coverage at your UK address before choosing

Your agreed monthly rental stays fixed throughout the contract term, with no mid-contract rental increases. Usage, roaming and other additional charges can vary; fixed rental does not mean the total bill can never change.

O2 for small and medium business teams

List the users you want to move, their existing contract end dates and the workplaces where they need calls and data. Office staff, field workers and occasional travellers may have different requirements even when they share an account.

Enquiries can cover a single connection or several users; eligibility is confirmed before ordering. Tell us whether connections are new, switching or renewing. If you want to keep numbers, include current contract end dates so transfer requirements and any applicable terms can be confirmed.

O2 business roaming and international travel

Record the countries, trip lengths and expected use before choosing a plan for a travelling colleague. Check destinations, fair-use conditions and any additional charges for the specific plan you order.

Our roaming guide explains the questions to ask. It does not establish that roaming is included in the advertised offer. Include your destinations in the enquiry.

When O2 fits — and when to compare again

Check each business postcode and select the relevant address. Compare indoor and outdoor voice and data; a good outdoor prediction does not guarantee reception inside your office.

If another network looks more suitable at an important address, compare it before committing. Monthly rental alone cannot settle a coverage decision.

Compare O2 with EE, Vodafone and Three

Compare the displayed offers on the same VAT basis and minimum term, then consider coverage and any additional requirements. Avoid choosing on brand familiarity alone.

Already on O2 or reviewing several lines?

A business mobile audit can review the current setup, locations and contracts before you decide what to move. Include the people who work away from head office so they are not overlooked.

Questions about O2 for business

Does this O2 offer include EU roaming?

Do not assume it does. Tell us the countries and trip lengths you need, and we can confirm the applicable roaming terms before you order.

How should I compare O2 with EE?

Check both networks at the same addresses, including indoor voice and data, then compare the displayed rentals and your additional requirements. The EE-versus-O2 guide supports that decision.

Can an audit review my existing O2 lines?

Yes. Include your current contract end dates, users and working locations so the review can compare your present setup with the available options.

Need roaming or have specific device requirements? Include them in your O2 enquiry so we can confirm the right terms.