Travel eSIM has a strange problem in 2026: there are now so many providers that a “Top 10” can become meaningless very quickly.

Put Airalo, Holafly, Nomad and Saily in a table, add country counts and starting prices, and you have roughly the same article that appears everywhere else. That is not how we look at this market.

Juniper Research estimates travel-eSIM revenue reached $1.8 billion in 2025 and could hit $8.7 billion by 2030. At the same time, revenue per gigabyte is falling as new brands pile in. Selling mobile data is getting easier; building an eSIM company people remember is getting harder.

What makes an eSIM company matter now?

Size matters, but not by itself. We looked at product design, network depth, pricing logic, repeat-use potential, and whether a company is actually pushing the category in a new direction.

A provider can sell an excellent 10GB/30-day bundle. It just cannot expect applause for inventing travel connectivity. Top eSIM Companies (alphabetical order):

1. Airalo — still the reference point

Airalo passed 30 million customers in June 2026, making it difficult to rank anyone above it. Its strength is not that it is always cheapest — it isn’t — but that it has become the eSIM marketplace many travellers recognise first.

Its range now spans fixed, unlimited and voice/text-capable products across 200+ locations. The downside is predictable: scale creates clutter. Holafly is simpler for unlimited; smaller providers can be cheaper. Airalo nevertheless remains the company everyone else is measured against.

2. Firsty — the model everyone should watch

Firsty is here because its business model is different.

Its Free tier offers ad-supported basic connectivity, while Classic and Unlimited use one global pricing structure across 170 countries. Unlimited can also be paused rather than discarded between trips.

Free access has restrictions and “unlimited” slows after the daily high-speed allowance. Still, the idea is provocative: make connectivity persistent, then monetise the level of experience.

3. GigSky — when travel includes the sea

GigSky becomes much more interesting the moment the itinerary leaves land.

Its cruise offering works across 290+ ships and ports in 200+ countries, moving between maritime and terrestrial connectivity. That’s a genuinely different problem from finding cheap data in Spain.

For a normal city break, shop around. For a cruise or ferry-heavy trip, GigSky belongs near the top.

4. Holafly — “unlimited” became a brand

Holafly made a smart strategic choice: stop looking like a data catalogue.

Its proposition is still unlimited travel data, but Holafly Plans pushes it toward persistent connectivity: one eSIM, 160+ destinations, monthly plans, unlimited hotspot on the top tier and a phone number.

Light users can absolutely overpay here. That’s fine. Holafly isn’t trying to win the cheapest-3GB contest.

5. Jetpac — selling the trip, not only gigabytes

Jetpac also understood that the eSIM itself is becoming boring.

One reusable eSIM covers 200+ destinations, but the interesting layer is around it: essential-app access after the main allowance is exhausted, international calling, airport lounge benefits and fast-track products.

Some travellers will never use those extras. Others will value them more than another 10% discount.

6. Nomad eSIM — very good at the boring bit

That’s a compliment.

Nomad remains one of the strongest choices for travellers who want a sensible amount of data, competitive pricing and little drama across 200+ destinations.

It is less differentiated than Saily, Roamless or Jetpac. It is also exactly what many travellers need.

7. Numero eSIM — when an eSIM starts looking like a telecom account

Numero is interesting for a reason that has little to do with another cheap travel-data bundle.

The platform combines travel eSIMs with virtual phone numbers, international calls and SMS, while its Full eSIM product goes further by putting data, a real phone number, calling minutes and SMS onto a single eSIM. Numero says its services now reach 30M+ users, with travel data available across 200+ countries.

That makes it one of the clearer examples of where the category could move next.

Most travel-eSIM providers solve one problem: internet access abroad. Numero is trying to keep more of the customer’s communication life inside the same account — connectivity, identity and reachability. A traveller can buy data for Spain, maintain a separate number for another market and make international calls without treating each feature as a completely different product.

There is a trade-off. The proposition is broader and therefore less instantly understandable than “10GB for €12”. Someone who only wants cheap holiday data may never need most of it.

But that is precisely why Numero belongs here. The interesting question for the next phase of eSIM is not how many providers can sell mobile data. It is how many can turn an eSIM customer into an ongoing telecom customer.

8. Roamless — one of the smartest product models

Roamless deserves to sit much higher on these lists than it usually does.

Its single global eSIM combines normal packages with pay-as-you-go credits that don’t expire. The same balance can support data, calls and SMS across 200+ destinations.

It won’t always beat a destination bundle on price. Conceptually, though, Roamless is competing for the traveller’s connectivity account, not simply the next trip. That distinction matters.

9. Saily — proof that data is no longer enough

Nord Security did not enter eSIM to build another beige data reseller.

Saily combines connectivity in 200+ destinations with web protection, ad blocking and virtual-location tools, and has added an optional US wireless number with calls and SMS.

If those extras mean nothing to you, cheaper alternatives exist. If they do, Saily suddenly has a reason to exist beyond price per GB. Surprisingly few providers manage that.

10. Ubigi — telecom underneath, travel brand on top

Ubigi is easy to underestimate because it is quieter than the category’s marketing machines.

Underneath sits Transatel, part of NTT, with core-network capabilities and relationships with more than 200 operators. Ubigi also extends beyond phones into laptops and connected cars.

That doesn’t make every plan a bargain. It does give Ubigi an operational depth many storefront-style brands don’t have.

11. Yesim — flexibility is becoming the product

Yesim is interesting because it is testing several answers to one question: how should frequent travellers actually buy connectivity?

Alongside standard bundles and unlimited plans, Pay & Fly lets users use data in 170+ countries from a reusable balance, while Unlim Day Pass lets travellers buy unlimited-data days to use as needed.

The menu is busier than a simple destination eSIM. For irregular business travel, it can also make much more sense.

The very interesting list may sit outside the Top 10 as well

This is where the market gets fun.

Kolet is pushing the install-once model. MobiMatter behaves more like an eSIM marketplace than a single provider. eSIM.dog exposes unusually granular fair-use choices on unlimited plans and is experimenting with extras such as VPNs and numbers. Ohayu combines country, global and unlimited products with multi-network access. CocoRoam leans into local-network access and straightforward regional plans. MicroEsim stands out partly through a broad checkout that includes regional payment methods such as Bancontact and iDEAL. MegaEsim is also a big challenger with its pricing strategy.

None needs to become “the next Airalo” to matter.

Smaller brands can change pricing, packaging and product logic faster. Some will disappear. Some will remain resellers with a better front end. A few will invent the feature the leaders copy next.

Final thoughts

The travel-eSIM market is now running two races.

One is distribution: who appears first in search, lands the airline partnership and acquires the traveller. Airalo and Holafly are formidable there.

The second is more interesting: who owns connectivity after that first trip?

Roamless wants the persistent wallet. Holafly wants the subscription. Firsty wants connectivity always available. Saily adds security. Jetpac adds the airport. GigSky extends it offshore. Smaller providers attack the edges with cheaper inventory and faster experimentation.

And that experimentation is not a side story. Juniper Research explicitly links intensifying competition to lower entry barriers created by travel-eSIM enablers, while warning that falling revenue per gigabyte is squeezing margins.

There is another competitor many Top 10 lists conveniently forget: the mobile operator. GSMA Intelligence’s 2025 survey found that more than 70% of international travellers who used an eSIM abroad obtained their travel eSIM from a mobile operator.

So this Top 10 will change.

Good.

A healthy eSIM market shouldn’t have ten permanent winners. Right now, the companies worth watching most closely are the ones trying to make the next purchase unnecessary — through a permanent eSIM, a wallet, a subscription, a free connectivity layer, a phone number, security services or something the market hasn’t packaged properly yet.

That’s where the next leader is likely to come from.