A business SIM-only plan gives you the flexibility to use your existing smartphones without paying for new handsets. Simply choose the SIM plan that matches your requirements and connect your devices to a business mobile network. Our business SIM-only tariffs are available with a range of data allowances, including options for businesses that need unlimited mobile data.
Whether you have one employee or a large mobile workforce, choosing the right business mobile plan can help you stay connected while keeping your monthly costs under control.
Ideal for employees who primarily use their phones for calls, messages, email and occasional web browsing.
A great option for employees who regularly use mobile apps, video conferencing, cloud services and social media while working away from the office.
Designed for employees who rely heavily on mobile connectivity. Unlimited business SIMs provide the freedom to use mobile data without worrying about exceeding a monthly allowance.
Manage multiple employees and devices from one business mobile account. Choose the right tariff for each user rather than putting your entire workforce on the same plan.

More than just a SIM card.
Track calls, texts and data across your whole SIM estate from one dashboard. Filter by user or SIM to spot unusual usage before it turns into an unexpected bill.
Add, remove or swap tariffs across every SIM in your business from a single self-service portal — no need to contact support for routine changes.
Bring your existing business numbers across with a simple, managed porting process, so your contacts never notice the switch.
Use your allowance abroad the same way you would at home, with consistently low roaming rates covering destinations across Europe and worldwide.
A named account manager oversees your usage and sends regular updates, flagging any users approaching their allowance so you're never caught out.
Choose 12-month, 24-month or 30-day rolling contracts, and align renewal dates across your whole SIM estate so nothing falls out of sync.
Upgrade or reissue devices across your whole team in one go, without the hassle of managing each mobile individually.
Activate a new SIM instantly without waiting for a physical card to arrive, ideal for onboarding new starters or replacing lost devices fast.
If your employees regularly work remotely, travel between locations or use their smartphones for data-intensive tasks, an unlimited business SIM could be the right choice.
Unlimited data business SIMs allow employees to use mobile data without having to monitor a fixed monthly allowance. This can be particularly useful for remote workers, sales teams, engineers, field-based employees and businesses that use mobile devices as a primary internet connection.
Unlimited mobile data
Unlimited calls and texts
Work remotely with confidence
Use cloud-based applications on the move
Support video calls and conferencing
Reduce concerns about exceeding data allowances
Ideal for mobile and field-based workers

Every network offers unlimited texts as standard — here's how data tiers and contract flexibility stack up.
A business mobile SIM is a SIM card designed specifically for business use, providing mobile calls, texts and data for employees, company devices and business users. Business SIM-only plans allow you to keep your existing smartphones while choosing a mobile tariff that suits your business's data, minutes and messaging requirements.
A business SIM-only plan provides mobile connectivity without requiring you to purchase a new handset. You can use your existing business phones and simply replace or upgrade the SIM. Business SIM-only tariffs are available with different data allowances, unlimited calls and texts, and flexible contract options.
Business mobile SIMs can help companies control mobile costs while providing employees with reliable calls, texts and mobile data. Depending on the tariff, benefits can include unlimited calls and texts, large or unlimited data allowances, business roaming, eSIM support, number porting and centralised SIM management.
Yes. You can usually transfer, or port, your existing business mobile numbers to a new business SIM. Number porting allows you to change mobile provider without having to give customers, suppliers or employees a new telephone number. Business Mobile SIMs provides a managed number porting process to make switching easier.
Business Mobile SIMs offers business SIM tariffs across O2 Business, Vodafone Business, EE Business and Three Business. This gives businesses a choice of networks and tariffs depending on their requirements for data, contract length and pricing.
Many of the business mobile SIM plans available include unlimited calls and texts. The exact allowance depends on the tariff you choose, so businesses can select a plan based on how much mobile data each employee or device requires.
Yes. Unlimited data business SIM plans are available across the network options offered by Business Mobile SIMs. An unlimited data SIM can be particularly useful for employees who regularly work remotely, travel between locations or rely heavily on mobile data.
The cost of a business mobile SIM depends on the network, data allowance and contract length. Business Mobile SIMs offers tariffs starting from around £8.99 per month, with options ranging from smaller data allowances through to unlimited data plans.
Business Mobile SIMs offers flexible contract options depending on the network and tariff, including 12-month, 24-month and 30-day rolling contracts. Flexible contracts can be useful for businesses that need to scale their mobile estate as their workforce changes.
Yes. Businesses with multiple mobile users can manage their SIM estate through a centralised self-service portal. This allows businesses to add, remove or change tariffs across multiple SIMs rather than managing every mobile connection individually.
Yes. A usage dashboard allows businesses to monitor calls, texts and data usage across their SIM estate. This can help identify unusual usage and give businesses greater control over their mobile spending.
Yes. eSIM support is available, allowing compatible devices to activate a mobile plan without requiring a physical SIM card. eSIMs can be particularly useful when setting up new employees, replacing devices or activating mobile connectivity quickly.
Yes. Business mobile SIMs can be used when travelling overseas, with roaming options available for destinations across Europe and worldwide. International roaming charges and allowances vary by network and tariff, so businesses should check the specific roaming terms before travelling.
The best business SIM for a small business depends on how much data, calling and flexibility you need. Smaller businesses may benefit from lower-data SIM-only plans, while employees who regularly work remotely or travel may benefit from larger or unlimited data allowances.
The best unlimited business SIM depends on your preferred mobile network, contract length, coverage requirements and budget. Business Mobile SIMs offers unlimited data options from O2, Vodafone, EE and Three, allowing businesses to compare different tariffs before choosing a plan.