Company lists · Data refreshed September 2026

Top 25 Telecom api security companies worldwide

RevenueBase identified 153 telecom api security companies worldwide as of September 2026 and tracks 2,994 professional contacts across them, including 1,126 with verified work emails. The United States is the largest market and London the largest hub.

This list covers telecom api security companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026. Country and city lists for telecom api security companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
153Companies
2,994Contacts tracked
1,126Verified emails
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The 25 largest telecom api security companies worldwide

Ranked by team size
Top 25 of 153 telecom api security companies worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to telecom api security companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceStockholm, SwedenHQ checked Sep 29, 2026501-1,000638 contacts →

Partial evidence

“Enea is a global specialist in advanced telecom and cybersecurity software, with a vision to make the world’s communications safer and more efficient.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceAustin, TX, United StatesHQ checked Sep 29, 202651-200174 contacts →

Indirect evidence

“AI is the operating system of the next decade of enterprise work, and most enterprises are running it on AWS with less oversight than they apply to the humans they're replacing.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceHong KongHQ checked Sep 29, 202651-200166 contacts →

Indirect evidence

“VOX Solutions is the AI-powered revenue protection technology partner for mobile network operators worldwide, delivering proven ROI through proprietary fraud prevention and A2P…”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceRedwood City, CA, United StatesHQ checked Sep 29, 2026201-500165 contacts →

Partial evidence

“Appdome protects mobile apps, APIs, and digital identities from fraud, bots, malware, and account takeover attacks.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceSlidell, LA, United StatesHQ checked Sep 29, 202651-200151 contacts →

Partial evidence

“In-Telecom offers a full spectrum of solutions such as VoIP phones, access control, unparalleled customer service, IT consulting, and quality workmanship from our experienced…”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceSingaporeHQ checked Sep 29, 202651-200124 contacts →

Indirect evidence

“V-Key protects mobile apps and digital identities from tampering, fraud, and unauthorized access.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceUppsala, SwedenHQ checked Sep 29, 202651-200109 contacts →

Partial evidence

“HAUD provides mobile network operators with a complete service to safeguard A2P revenues and enhance network security.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceMarlborough, MA, United StatesHQ checked Sep 29, 2026201-50066 contacts →

Partial evidence

“At the forefront of telecommunications for over two decades, netnumber delivers market-leading phone number intelligence data and digital identity services that empower…”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceLuxembourgHQ checked Sep 29, 202651-20057 contacts →

Partial evidence

“Mobik is an international telecommunications service provider established in 2005.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidence서울특별시, South KoreaHQ checked Sep 29, 202651-20054 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-20053 contacts →

Indirect evidence

“XConnect, a wholly owned subsidiary of Somos Inc, is a global leader in phone number intelligence and network-based identity data services, trusted by carriers, banks, platforms…”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceMunich, GermanyHQ checked Sep 29, 202651-20048 contacts →

Indirect evidence

“On March 2, 2026, OneSpan and Build38 came together to strengthen OneSpan’s core objective of protecting high-value mobile interactions.”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceParis, FranceHQ checked Sep 29, 202651-20047 contacts →

Partial evidence

“Pradeo is a global leader of mobile security.”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceZug, SwitzerlandHQ checked Sep 29, 202651-20034 contacts →

Partial evidence

“With a proven track record spanning over 30 operators worldwide, our solutions are the key to securing sustainable growth in A2P SMS and voice traffic.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceOudsbergen, BelgiumHQ checked Sep 29, 202611-5030 contacts →

Partial evidence

“Uw telecom en beveiliging?”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceParis, FranceHQ checked Sep 29, 202611-5029 contacts →

Indirect evidence

“We provide services and technologies to identify, detect and recover from critical threats and vulnerabilities on signalling protocols like SS7/SIGTRAN, Diameter, GPRS/GTP, IMS…”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceHvidovre, DenmarkHQ checked Sep 29, 202611-5025 contacts →

Indirect evidence

“Dencrypt’s solutions effectively protect against industrial espionage and eavesdropping.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceKyiv, UkraineHQ checked Sep 29, 202611-5024 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
19Strong evidencePune, IndiaHQ checked Sep 29, 202611-5022 contacts →

Strong evidence

“Matrix-Shell Technologies provides telecom security services for securing your Telecom signaling, by conducting Telecom Penetration testing on legacy and latest telecom technology.”

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidenceBrno, Czech RepublicHQ checked Sep 29, 202611-5020 contacts →

Partial evidence

“Talsec is an academic-based and community-driven mobile security company.”

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceDubai, United Arab EmiratesHQ checked Sep 29, 202611-5020 contacts →

Partial evidence

“Mobeep is a rapidly growing and prominent provider of telecom and cloud communication services.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidencePlano, TX, United StatesHQ checked Sep 29, 202611-5019 contacts →

Partial evidence

“Since Sevis has helped identify and eliminate fraudulent, malicious and nefarious activity on telecom networks worldwide.”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceSingaporeHQ checked Sep 29, 202611-5018 contacts →

Partial evidence

“TreeBox Solutions is a specialist company for mobile security solutions.”

Source: RevenueBase Database · checked Sep 29, 2026
24Strong evidenceReston, VA, United StatesHQ checked Sep 29, 202611-5015 contacts →

Strong evidence

“Qanapi is revolutionizing data security, compliance, and governance with its FIPS-validated, FedRAMP High (Ready) API service, providing state-of-the-art encryption and protection…”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidence서울시, South KoreaHQ checked Sep 29, 202611-5014 contacts →

Indirect evidence

“The development of ICT(Information and Communication Technologies) has driven the growth and development of IT services industry.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 153 telecom api security companies worldwide

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Telecom api security companies worldwide at a glance

As of Sep 29, 2026
37.6%Verified-email coverage
19.6Average contacts per company
11-50Median size (employees)
3.9%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
69
11-50
54
51-200
24
201-500
5
501-1,000
1

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among telecom api security companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for telecom api security companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “telecom api security companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names telecom api security companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among telecom api security companies, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 1,126 across the full list. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Telecom api security companies by location

1 lists · largest first

Every Telecom api security companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names telecom api security companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many telecom api security companies are there worldwide?

RevenueBase identified 153 telecom api security companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Enea AB, headquartered in Stockholm, tops this list with the largest team on record.

Which country has the most telecom api security companies?

The United States leads with 29 companies. Every telecom api security companies list by country and city is linked on this page.

Which city has the most telecom api security companies?

London leads with 6 headquartered companies, followed by Hong Kong (3) and Rio De Janeiro (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,126 verified decision-maker contacts tracked across these 153 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.