Business Roaming SIM for USA, Canada & Jamaica (2026)

Your sales lead lands in Toronto. Her phone works. Two weeks later, finance opens the bill and it is four figures.

That is the problem a business roaming SIM fixes. It is one UK SIM that keeps working when your staff travel, so they keep their UK number and you keep control of the cost.

This guide is for the person who buys mobiles for a team. It explains, in plain words, what to check before you send anyone to the EU, USA, Canada or Jamaica. It also shows how GleeSim, a boutique telecom company in Livingston, Scotland, builds roaming plans around your business instead of the other way round.

See the O2 Unlimited roaming SIM →

What is a business roaming SIM?

A business roaming SIM is a UK mobile SIM that lets your staff use calls, texts and mobile data in other countries, on the same UK number, under one company bill. "Roaming" simply means your phone borrows a partner network abroad. Your UK network (here, O2) has deals with those networks, so your phone connects as soon as you land.

Think of it like a library card that also works in libraries in other countries. Same card. Different building.

For a business, that means:

One number per person, at home and abroad. Clients always reach the right phone.
One bill, not a pile of foreign top-up receipts.
No buying local SIMs at the airport for every trip.

Does my UK business SIM work in the USA and Canada?

Many do not, or they charge a daily fee outside Europe. Lots of UK plans include the EU and stop there. The USA, Canada and especially Jamaica often sit in a more expensive zone.

GleeSim's O2 Unlimited Calls, Texts and Data SIM lists roaming in the EU, USA, Canada and Jamaica on one plan. The product page states unlimited calls to local and international numbers across those destinations, plus unlimited texts and data.

That combination matters for one simple reason: a trip that goes London → Paris → New York → Kingston stays on one SIM.

Check the plan and contract options →

7-point checklist for choosing a business roaming SIM for staff travel

The 7 questions to ask before you give staff a roaming SIM

"Unlimited" is a big word. Here is how to make sure it means what your business needs. Ask your provider every one of these. A good provider answers in writing.

#	Question	Why it matters to your business
1	Is every country on the trip included?	"Europe" and "EU" are not the same. Switzerland, Norway and Turkey can sit in different zones.
2	Is data unlimited abroad, or only in the UK?	Some plans give unlimited UK data but a smaller roaming allowance or a fair use policy (FUP).
3	Which calls are free?	Calling a hotel in Montreal, calling the office in Glasgow, and calling a client in Madrid while you are in New York can each be priced differently.
4	Is hotspotting (tethering) allowed?	Staff who run a laptop off their phone use far more data.
5	Is there a long-stay limit?	Many UK plans are built for trips, not for living abroad. Secondments need checking.
6	Will the phone work there?	The handset must be unlocked and support the local network bands. Most recent smartphones do.
7	What happens with SMS codes?	Banking apps, 2FA logins and Microsoft/Google security codes arrive by SMS. Test before you fly.

The quotable line: A roaming bill is not a phone problem. It is a planning problem you can solve before the plane takes off.

How much data does a business traveller use?

Less than people fear, unless they hotspot a laptop. Use this table to size the plan, then see our guide on how much data a business SIM needs by job role.

What your staff do abroad	Data use	Example
Email, WhatsApp, Teams chat	Low	Checking in with the office
Maps and taxi apps	Low to medium	Getting to the client site
Video calls (Teams, Zoom)	Medium to high	A one-hour client meeting
Hotspotting a laptop	High	Working from a café or a site
Uploading files, photos, video	High	Site surveys, event content

If the trip is mostly meetings and email, a roaming SIM with included data is usually the simplest choice. If staff will hotspot all day, ask GleeSim about a mobile broadband (MBB) router SIM as well.

Business roaming SIM vs travel eSIM vs local SIM

Each one fits a different trip. Pick the one that matches the job.

Option	Best for	Keeps UK number?	Watch out for
Business roaming SIM (GleeSim O2)	Staff who must stay reachable on their UK number	Yes	Confirm fair use, hotspot and long-stay terms
Travel eSIM (gleesim.com)	Data-only trips, a second line next to the work SIM	No (data only)	Phone must support eSIM
Local SIM	Long stays in one country	No	ID checks, new number, separate bill
Portable 5G/4G router	Teams, events, several laptops	n/a	Battery, data plan, extra kit to carry

A smart setup for frequent travellers is both: the GleeSim roaming SIM keeps the UK number live for calls and SMS codes, and a GleeSim travel eSIM bought on WhatsApp, with no app and no account, adds cheap data in 200+ countries.

Talk to GleeSim about a team roaming plan →

Who is this for?

Sales teams flying to US or Canadian clients who must answer every call on their UK number.
Small business owners with family or suppliers in Jamaica who want one phone for work and home.
Consultants and engineers moving between EU sites and North American offices in the same month.
Event and hospitality teams travelling to trade shows across Europe and the USA.
Office and IT managers who want one bill, one supplier and no surprise roaming charges for the whole team.

Why UK businesses choose GleeSim for roaming and beyond

GleeSim is a boutique UK telecom company based in Livingston, Scotland, part of a telecom family that started in 2009. The team has 30 years of combined telecom experience.

That matters because a roaming SIM is rarely the only thing a growing business needs. GleeSim supplies bespoke connectivity for SMEs, corporates and enterprise:

Business mobile contracts and SIM-only plans, with or without handsets
Mobile broadband (MBB) SIMs and 4G/5G routers for offices, sites and events
IoT and M2M SIMs for EV chargers, CCTV, trackers and meters
Fixed IP / static IP SIMs for secure remote access

One supplier. One UK support team. Plans built around how your people actually work.

How to get started

List the trips. Write down the countries, how long staff stay, and whether they hotspot.
Check the plan. Review the O2 Unlimited Calls, Texts and Data SIM. Plans run on 3, 12 or 24-month terms.
Ask us the 7 questions. We confirm fair use, hotspot and long-stay terms in writing for your team.
Need more than a few SIMs? Ask for a bespoke multi-SIM quote with or without handsets.
Test before you fly. Turn on roaming, send a test SMS, make a test call. Done.

Frequently asked questions

What is a business roaming SIM?

A business roaming SIM is a UK SIM that works abroad on partner networks, so staff keep their UK number and the company gets one bill. GleeSim's O2 plan lists roaming in the EU, USA, Canada and Jamaica.

Does GleeSim's O2 SIM work in Jamaica?

Yes. The GleeSim O2 Unlimited Calls, Texts and Data SIM lists Jamaica alongside the EU, USA and Canada. Confirm your exact itinerary with GleeSim before you travel.

Is roaming data really unlimited?

The plan is sold as unlimited calls, texts and data. All UK networks can apply fair use rules to roaming, so ask GleeSim to confirm the roaming terms for your team in writing before long or data-heavy trips.

Can my staff use their phone as a hotspot abroad?

Hotspot rules depend on the plan. Ask GleeSim before staff rely on it for laptops. For heavy laptop use, a mobile broadband router SIM is often the better tool.

Should my team use a roaming SIM or a travel eSIM?

Use a roaming SIM when staff need their UK number for calls and SMS codes. Use a travel eSIM for extra data only. Many frequent travellers use both on one phone.

Can GleeSim supply roaming SIMs for a whole team?

Yes. GleeSim builds bespoke business mobile plans for SMEs, corporates and enterprise, with or without handsets, on one bill with UK-based support.

Roaming should be boring. Staff land, the phone works, and the bill looks the same as last month.

GleeSim's O2 roaming SIM covers the EU, USA, Canada and Jamaica on one UK plan. For bigger teams, GleeSim builds bespoke business mobile, MBB, IoT and M2M connectivity around you, from a Scottish team that answers the phone.

Stop paying for surprise roaming. Get your team one SIM that travels with them. Order the O2 Unlimited roaming SIM → · Request a bespoke team quote →