Company lists · Data refreshed September 2026

Top 11 Esim service providers based in the United Kingdom

RevenueBase identified 26 company matches for esim service providers associated with the United Kingdom as of September 2026 and tracks 629 professional contacts across them, including 273 with verified work emails. London is the largest hub.

This list covers company matches for esim service providers associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built
26Companies
629Contacts tracked
273Verified emails
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The 11 largest esim service providers based in the United Kingdom

Ranked by team size
Top 11 of 26 company matches for esim service providers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchManchester, United KingdomHQ recorded Sep 20, 2026201-500342 contacts →

Exact match

“Evolving Systems helps Communications Service Providers win in the fast-changing, disruptive environments in which they compete.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchGuildford, United KingdomHQ recorded Sep 20, 202651-200120 contacts →

Exact match

“Eseye, a global leader in IoT Connectivity and eSIM Orchestration, empowers Enterprises and MNOs to optimize connectivity to millions of devices across over 800 networks with…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchBanbury, United KingdomHQ recorded Sep 20, 202651-20060 contacts →

Exact match

“eSIM Go empowers businesses of any size to offer their own digital connectivity solutions to customers, providing everything needed to scale their global opportunity and go to…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20025 contacts →

Exact match

“Our Vision is to be the world’s leading provider of enhanced eSIM solutions to mobile operators, IoT manufacturers and IoT systems.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchEdinburgh, United KingdomHQ recorded Sep 20, 202611-5017 contacts →

Exact match

“UK Telecom Distribution Ltd (UKTD) – Leading Wholesale SIM & eSIM Provider Founded in 2011, UKTD is a premier wholesale distributor of SIM & eSIM solutions, supplying SIM & eSIMs…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 20, 20261-1012 contacts →

Exact match

“Travel Roam is a CPaaS for both eSIM and Mobile SIM plans.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchLiverpool, United KingdomHQ recorded Sep 20, 202611-507 contacts →

Exact match

“Telkoa is building the missing control layer of telecom.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 20, 20261-104 contacts →

Exact match

“Here at BetterM2M, we don't just focus on selling SIM cards.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-504 contacts →

Exact match

“We're proud to be the only eSIM provider to offer prepaid voice, data and SMS services for use nearly anywhere in the world.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchThe Historic Dockyard, United KingdomHQ recorded Sep 20, 202611-503 contacts →

Exact match

“Megga Telecom are pioneers in the Roaming communications arena.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchPortsmouth, United KingdomHQ recorded Sep 20, 20261-102 contacts →

Exact match

“easySim.global eSIM's are now available worldwide, so international travellers now have access to low cost smartphone data, wherever they may roam.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 11 of 26 esim service providers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 273 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Esim service providers based in the United Kingdom at a glance

As of Sep 20, 2026
43.4%Verified-email coverage
24.2Average contacts per company
11-50Median size (employees)
53.8%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
11
11-50
9
51-200
5
201-500
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 26 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “esim service providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 273 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “esim service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many esim service providers are there based in the United Kingdom?

RevenueBase identified 26 company matches for esim service providers associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Evolving Systems tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most esim service providers?

London leads with 14 company records, followed by Banbury (2) and Manchester (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 273 professional contacts with verified work emails tracked across these 26 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.