Company lists · Data refreshed September 2026

Top 13 Iot telecom security companies based in Romania

RevenueBase identified 36 iot telecom security companies headquartered in Romania as of September 2026 and tracks 2,730 professional contacts across them, including 1,373 with verified work emails. Bucharest is the largest hub.

This list covers iot telecom security companies headquartered in Romania, 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 28, 2026.

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 28, 2026 86% judged on-target in blind review
36Companies
2,730Contacts tracked
1,373Verified emails
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The 13 largest iot telecom security companies based in Romania

Ranked by team size
Top 13 of 36 iot telecom security companies based in Romania, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to iot telecom 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
1Indirect evidenceBucuresti, RomaniaHQ checked Sep 28, 20261,001-5,0002,172 contacts →

Indirect evidence

“Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidencePopesti Leordeni, RomaniaHQ checked Sep 28, 20265,001-10,000126 contacts →

Partial evidence

“SSG Group is a Romanian holding with 100% private capital, dedicated to reshaping the security industry.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceSector 2, RomaniaHQ checked Sep 28, 2026201-500103 contacts →

Partial evidence

“Hyperfy provides “end-to-end” high-tech solutions for physical security and safety.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceCluj-napoca, RomaniaHQ checked Sep 28, 2026201-50060 contacts →

Partial evidence

“ADVANCE SRL a fost fondata in anul pentru a promova si furniza solutii tehnologice de varf pentru sistemele de securitate care ofera clientilor o siguranta si o eficienta sporita.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceSector 1, RomaniaHQ checked Sep 28, 202611-5045 contacts →

Indirect evidence

“Data Core Systems is a cybersecurity provider helping organizations tackle one of the biggest challenges of the digital environment.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceBucharest, RomaniaHQ checked Sep 28, 202611-5044 contacts →

Partial evidence

“CryptoDATA Tech represents a company providing IT solutions in cybersecurity, developed using blockchain technology and A.I systems, keen on offering users worldwide security…”

Source: RevenueBase Database · checked Sep 28, 2026
7Strong evidenceBacău, RomaniaHQ checked Sep 28, 202651-20031 contacts →

Strong evidence

“Telesystem este cea mai dinamică companie de distribuție a echipamentelor și sistemelor electronice de securitate, telecomunicații și IT & C la nivel național cu puncte de…”

Source: RevenueBase Database · checked Sep 28, 2026
8Strong evidenceVoluntari, RomaniaHQ checked Sep 28, 20261-106 contacts →

Strong evidence

“Mira Technologies Group is a Romanian company focused on research and innovation, specializing in the supply and integration of security and telecommunications technology systems.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceCluj-napoca, RomaniaHQ checked Sep 28, 20261-106 contacts →

Partial evidence

“We are a company specialized in Cybersecurity for Embedded Systems across various industries, including Automotive, Industrial IoT, Consumer IoT, and Healthcare.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceBucharest, RomaniaHQ checked Sep 28, 202611-505 contacts →

Partial evidence

“We are a boutique cyber security company that provides specialized solutions for your digital security needs.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceSector 1, RomaniaHQ checked Sep 28, 202611-504 contacts →

Partial evidence

“Blackshell stands out in cybersecurity innovation, providing companies and public institutions with advanced, yet accessible and user-friendly security solutions - including a…”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceSector 2, RomaniaHQ checked Sep 28, 202611-503 contacts →

Partial evidence

“De peste 30 de ani, ESET a dezvoltat soluții și servicii software de securitate IT de top pentru a oferi o protecție multilayer, împotriva amenințărilor de securitate cibernetică…”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceBucuresti, RomaniaHQ checked Sep 28, 20261-103 contacts →

Partial evidence

“Established in 2020, Data Communications Service delivers telecommunications services at the highest quality standards, leveraging cutting-edge technologies.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 13 of 36 iot telecom security companies based in Romania

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Iot telecom security companies based in Romania at a glance

As of Sep 28, 2026
50.3%Verified-email coverage
75.8Average contacts per company
1-10Median size (employees)
25.0%Largest-city concentration · Bucharest
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
10
51-200
3
201-500
2
1,001-5,000
1
5,001-10,000
1

Email recency for this list is measured worldwide rather than for Romania, so it is reported there. Company counts and contact totals on this page are exact for Romania, over 36 companies.

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 iot telecom 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.
What qualifies
Companies headquartered in Romania whose own description of what they do matches “iot telecom 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 iot telecom 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 iot telecom security companies, and records with no verified work email. Companies headquartered outside Romania are excluded even when they keep an office there.
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, 1,373 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 28, 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.

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 iot telecom 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 iot telecom security companies are there based in Romania?

RevenueBase identified 36 iot telecom security companies headquartered in Romania 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?

Bitdefender, headquartered in Bucuresti, tops this list with the largest team on record.

Which city has the most iot telecom security companies?

Bucharest leads with 9 headquartered companies, followed by Bucuresti (7) and Cluj-Napoca (5).

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 1,373 verified decision-maker contacts tracked across these 36 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 28, 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.