Best UK Business SIMs & e-SIM Solutions | 5G, IoT, Multi-Network & More- Gleesim

Welcome to Gleesim, Your Trusted Partner for Business Mobile Contract & SIM Solutions, 5G Connectivity, Travel e-Sim and Perfect Global Communication!

Welcome to Gleesim – Your go-to provider for 5G Fixed IP SIMs, Multi-Network SIMs, IoT SIMs, CCTV Data SIMs, Travel eSim and Business e-SIMs in the UK, so guaranteeing smooth connectivity, unlimited data, and consistent communication for companies.

M2M & IoT Solutions

Power your business in the UK and globally with advanced M2M and IoT connectivity solutions. Gleesim delivers ultra-fast, secure 5G Broadcast SIMs, UK Unlimited Data SIMs (Vodafone, EE, Three), IoT SIMs, Fixed IP SIMs, Multi-Network Fixed IP SIMs, EE M2M SIMs, and Big Data SIMs-engineered for smart companies and industrial IoT deployments in London, Edinburgh, Manchester, Birmingham, and across Europe. Experience seamless, reliable data for machine-to-machine (M2M) communication, robust IoT device management, and safe, always-on connectivity. Optimize your operations with scalable SIM solutions trusted by UK enterprises, Scottish tech innovators, and global businesses seeking secure, high-performance IoT networks.

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Business Mobiles & SIM-Only Plans

Upgrade Your UK Business with the Latest iPhone & Samsung 5G Mobiles – Unlimited Calls, Texts, and High-Speed Data on Flexible Contracts.

Empower your UK business with the newest iPhone and Samsung business mobiles on contract, featuring unlimited calls, unlimited messages, and ultra-fast 5G data. Based in the UK, Gleesim offers flexible business SIM-only plans and mobile contracts tailored for companies in London, Manchester, Birmingham, Edinburgh, Glasgow, and across the UK. Enjoy seamless communication, affordable pricing, and reliable connectivity on leading networks like EE, Vodafone, O2, and Three. Whether you’re a small business or a growing enterprise, our business mobile solutions ensure your team stays connected and productive nationwide. Switch today for the best UK business mobile deals and experience flawless, high-speed 5G coverage designed for your company’s needs. Find your Best deal on monthly mobile Business contract.

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Travel ESim Solutions

Instantly Connect Worldwide – Prepaid Travel eSIMs in Minutes,

No roaming fees. No physical SIM. Instant activation for travellers and business users.

Gleesim, has been selected as the preferred wholesale partner by top global Travel eSIM brands Airalo and eSIM GO. Compare the best prepaid travel eSIM prices for your destination with Gleesim’s powerful comparison platform, and exclusive deals from Gleesim own trusted brand. Enjoy instant activation, transparent pricing, and seamless 5G/4G connectivity worldwide for travellers and businesses across 200+ countries. Find the perfect eSIM plan for your next trip and stay connected worldwide with Gleesim-the UK’s trusted eSIM marketplace.

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Choose Your Travel eSIM Destination

Find your Travel eSIM for Your Destination – Instantly Compare Global eSIM Plans

USA eSIM

Stay connected in the USA with high-speed eSIM data. Instant activation & top network coverage.

UK eSIM

Get the best UK eSIM with fast internet & affordable plans. Buy now!

Canada eSIM

Enjoy seamless connectivity in Canada with Gleesim’s eSIM services.

Australia eSIM

Best eSIM for Australia – Fast activation & reliable network.

Germany eSIM

Stay online in Germany with high-speed Gleesim eSIM.

France eSIM

Buy France eSIM for unlimited data & easy connectivity.

UAE eSIM

Get Dubai eSIM with fast internet & affordable plans.

Japan eSIM

Stay connected in Japan with instant activation & best network.

Join our growing community with 10% lifetime discount. Gleesim

Get the Best UK Mobile Phone Deals – Latest iPhone & Samsung with Unlimited 5G data, calls and text Plans

Mobile Phones with SIM Plans

Looking for the best business mobile phone contract in the UK? At Gleesim, we are not bound to a single mobile network carrier.

We negotiate, design, and deliver carrier-agnostic mobile solutions tailored to your needs. Think of us as your outsourced telecom strategist, here to help reduce costs, increase uptime, and ensure unmatched flexibility. Gleesim delivers tailored solutions for every business size—from sole traders to large enterprises. Whether you need:

🗸 Unlimited 5G data, calls, and texts
🗸 SIM-only business plans with no upfront costs
🗸 Global roaming and satellite connectivity
🗸 Contracts on O2, EE, Vodafone, Three & Plan.com
🗸 Bespoke tariffs based on usage patterns
🗸 Contract optimization and migration services

Choose the latest iPhone or Samsung Galaxy or go SIM-only and cut costs with bespoke monthly tariffs. Contact Gleesim today to discover your perfect business mobile plan.

iPhone

Samsung

iPhone 16 Pro Max with 5G Sim Plan

Get the latest iPhone 16 Pro Max with an Unlimited SIM Plan from gleesim.co.uk! Enjoy unlimited calls, texts, and ultra-fast 5G internet for seamless connectivity.

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iPhone 16 Pro with 5G Sim Plan

Get the latest iPhone 16 Pro with an Unlimited SIM Plan from gleesim.co.uk! Enjoy unlimited calls, texts, and ultra-fast 5G internet for seamless connectivity.

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iPhone 16 with 5G Sim Plan

Get the latest iPhone 16 with an Unlimited SIM Plan from gleesim.co.uk! Enjoy unlimited calls, texts, and ultra-fast 5G internet for seamless connectivity.

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iPhone 15 Pro Max with Unlimited 5G SIM

Get the latest iPhone with unlimited 5G data, calls & texts. No upfront cost, just easy monthly payments.

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iPhone 15 Pro with Unlimited 5G SIM

Get the latest iPhone 15 Pro with unlimited 5G data, calls & texts. No upfront cost, just easy monthly payments.

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iPhone 15 with Unlimited 5G SIM

Get the latest iPhone 15 Pro with unlimited 5G data, calls & texts. No upfront cost, just easy monthly payments.

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Exclusive Mobile Sim Only Plan

Business SIM Only Plan(Three Network)

Get the Business SIM Only Plan on the Three Network with Unlimited Calls, Texts, and 5G Fast Internet for just £13.00/month. Perfect for seamless business communication.

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Business SIM Only EU Plan - O2 Network

Get the Business SIM Only EU Plan on the O2 Network with Unlimited UK Calls & Texts, Free EU Roaming, 500 UK-to-EU Minutes, and 20GB 5G Fast Internet for just £16.00/month(Excl. VAT)

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Business Unlimited SIM Only Plan O2

Get the Business Unlimited SIM Only Plan O2 Network with Unlimited UK Calls, Texts & 5G Internet, Free EU Roaming, and 2000 UK-to-EU Minutes for just £24.00/month. Stay connected across the UK & EU

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Business Freedom Unlimited SIM Only Plan

Get the Business Freedom Unlimited SIM Only Plan with Unlimited UK Calls, Texts & 5G Internet, Unlimited Global Calls, and Unlimited Worldwide Roaming for just £60.00/month.

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Business Mobile Contracts and Sim Solutions