Business SIM-only

Optima SIM-Only Plans

Cost-effective business mobile plans with flexible calls, texts and data options designed to suit your users, devices and budget.

Optima provides business SIM-only solutions across the UK’s leading mobile networks including EE, O2 and Vodafone, with physical SIMs, eSIM options, number porting and practical UK-based support.

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SIM-only features

Business Mobile Tariffs

Flexible business-only plans designed around your usage, staff requirements and budget.

4G & 5G Connectivity

Reliable mobile connectivity for calls, messaging, cloud apps and remote working.

Leading UK Networks

Business tariffs available across EE, O2 and Vodafone networks.

Number Porting

Move your existing business numbers quickly and simply with minimal disruption.

Bill Shock Protection

24/7 monitoring and alerts help control usage and reduce unexpected mobile costs.

Physical SIM & eSIM

Choose between traditional SIM cards or modern eSIM activation for compatible devices.

Business Mobile Connectivity

Flexible business mobile plans designed for modern working

Modern businesses rely on fast and reliable mobile connectivity to support remote working, cloud systems, communication apps and teams working on the move.

Business SIM-only solutions provide a flexible and cost-effective way to keep staff connected without the upfront cost of replacing handsets or committing to unnecessary hardware upgrades.

Optima helps businesses choose the right mobile connectivity with practical advice, access to leading UK networks, number porting support and scalable business SIM-only solutions backed by UK-based support.

What you get

Flexible business SIM-only solutions designed to keep your team connected with reliable coverage, simple management and scalable mobile plans.

Flexible Mobile Plans

Business SIM-only tariffs with calls, texts and data options designed around your users and budget.

Leading UK Networks

Access reliable coverage across EE, O2 and Vodafone business mobile networks.

Simple Switching & Support

We help with number porting, onboarding, account management and ongoing UK-based support.

SIM-only FAQs

Common questions about business SIM-only plans

Choosing the right business mobile plan is important for connectivity, flexibility and controlling ongoing costs. Here are some of the common questions businesses ask before switching or upgrading their mobile services.

We’ll help you choose the right SIM-only solution based on your users, devices, coverage requirements and day-to-day business usage.

What business SIM-only plans do you provide?

We provide a range of business SIM-only plans including voice and data packages, unlimited data plans, shared bundles and data-only SIMs for business devices.

Which mobile networks are available?

We provide business mobile tariffs across leading UK networks including EE, O2 and Vodafone depending on your coverage and business requirements.

Can I keep my existing business numbers?

Yes, we can help port your existing business mobile numbers across to minimise disruption during the switch.

Do you offer eSIMs?

Yes, physical SIM cards and eSIM options are available for compatible devices and business requirements.

Can SIM-only plans support remote and hybrid working?

Yes, business SIM-only plans are ideal for remote staff, hybrid workers, tablets, laptops and mobile connectivity on the move.

Can contracts be aligned to one renewal date?

Yes, we can often help align multiple business mobile contracts to simplify account management and billing.

How do you help control business mobile costs?

We provide practical guidance along with monitoring and alerts designed to help reduce unexpected usage charges and bill shock.

Do you provide support after setup?

Yes, we provide UK-based support for onboarding, account management, changes, faults and ongoing business mobile assistance.

Why choose SIM-only

Why businesses are moving to flexible SIM-only mobile plans

Business SIM-only plans provide a flexible and cost-effective way to keep teams connected without the upfront cost of replacing mobile devices. Modern mobile connectivity supports remote working, cloud systems and communication on the move.

Reduce upfront costs by keeping existing devices
Support remote, hybrid and mobile working more effectively
Access flexible business tariffs across leading UK networks
Scale mobile connectivity easily as your business grows

Who it’s for

Designed for businesses that rely on flexible mobile connectivity

Business SIM-only solutions are ideal for organisations that depend on reliable mobile connectivity for communication, remote working, cloud systems and day-to-day business operations both in and out of the office.

Small, growing and established businesses
Remote, hybrid and mobile workforces
Businesses using tablets, laptops and mobile devices
Organisations looking to reduce mobile hardware costs

Client feedback

What businesses say about our SIM-only services

Flexible plans, reliable mobile coverage and responsive support are some of the key reasons businesses choose Optima for their business SIM-only and mobile connectivity solutions.

Flexible plans that fit our business

Optima helped us move onto business SIM-only plans that better suited our staff usage and reduced unnecessary mobile costs.

Operations Manager

Professional Services Firm, London

Smooth number porting and setup

The migration process was handled professionally and all our business numbers were transferred with minimal disruption.

Office Manager

Multi-User Business, North London

Reliable support and coverage

We now have much more reliable mobile connectivity for our remote staff and the support from Optima has been excellent throughout.

Managing Director

Growing SME, Hertfordshire

Ready to discuss SIM-only plans?

Tell us what your business needs and we’ll help you find the right mobile solution.

Wednesday 24th Dec	9am – 12pm
Dec 25th – Jan 4th	CLOSED
Monday 5th Jan	OPEN