Company lists · Data refreshed September 2026

Top 18 Telecom infrastructure companies based in Romania

RevenueBase identified 51 telecom infrastructure companies headquartered in Romania as of September 2026 and tracks 1,183 professional contacts across them, including 211 with verified work emails. Bucharest is the largest hub.

This list covers telecom infrastructure 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 16, 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 16, 2026 86% judged on-target in blind review
51Companies
1,183Contacts tracked
211Verified emails
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The 18 largest telecom infrastructure companies based in Romania

Ranked by team size
Top 18 of 51 telecom infrastructure companies based in Romania, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to telecom infrastructure 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 evidenceSectorul 1, RomaniaHQ checked Sep 16, 2026201-500247 contacts →

Indirect evidence

“Since 2003, we have consulted and implemented complete solutions for any business.”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceCluj-napoca, RomaniaHQ checked Sep 16, 2026501-1,000223 contacts →

Partial evidence

“An entrepreneurial success story started in 1997, and today Electrogrup is one of the main players in the infrastructure construction field in Romania.”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceBucharest, RomaniaHQ checked Sep 16, 2026201-500113 contacts →

Partial evidence

“Intrarom is the subsidiary of Intracom Telecom, a global telecommunication systems vendor with 40 years of experience in the telecom market, strong regional presence in EMEA and…”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceSector 1, RomaniaHQ checked Sep 16, 20261,001-5,00084 contacts →

Partial evidence

“In today's world, technology is king, yet it runs on infrastructure.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceCluj-napoca, RomaniaHQ checked Sep 16, 2026501-1,00045 contacts →

Indirect evidence

“Construim viitorul împreună.”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceBucharest, RomaniaHQ checked Sep 16, 202611-5025 contacts →

Partial evidence

“MEDIA SAT is one of the most important telecommunications companies operating on the Romanian Business-to-Business market.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceSuceava, RomaniaHQ checked Sep 16, 202611-5021 contacts →

Indirect evidence

“Generam sinergiile care permit profesionistilor din proiectarea, gestiunea si constructia de retele sa identifice System Group ca fiind partenerul strategic pentru succesul lor.”

Source: RevenueBase Database · checked Sep 16, 2026
8Strong evidenceSector 6, RomaniaHQ checked Sep 16, 202611-5019 contacts →

Strong evidence

“Founded in 2007, Netcity is a growing provider of passive telecommunications infrastructure within the Bucharest area.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceVoluntari, RomaniaHQ checked Sep 16, 202611-5019 contacts →

Partial evidence

“Our presence is focused nowadays on telecom and energy market sectors.”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceTimisoara, RomaniaHQ checked Sep 16, 2026201-50013 contacts →

Partial evidence

“DELTATEL was founded more than 17 years ago to serve the telecommunication industry, to connect people, and build bridges between them.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceIaşi, RomaniaHQ checked Sep 16, 20261-108 contacts →

Indirect evidence

“Proiectare retele de fibre optice.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceTimisoara, RomaniaHQ checked Sep 16, 202651-2008 contacts →

Partial evidence

“Infiintata in 2004, Deltanet s-a dezvoltat ca si constructor de retele de telecomunicatii in special proiectarea, constructia si mentenanta retelelor de fibra optica pentru marii…”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceBucharest, RomaniaHQ checked Sep 16, 202611-506 contacts →

Indirect evidence

“CORIL is a Romanian privately held company founded in 1997- we are a specialised company with over 25 years expertise in LAN structured cabling systems, fiber optics solutions…”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceCluj-napoca, RomaniaHQ checked Sep 16, 202611-505 contacts →

Indirect evidence

“Founded in 2005, Datanet Systems Cluj is a trusted local provider of IT & C solutions and services, with strong expertise in designing, installing, and maintaining advanced voice…”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial evidenceBucuresti, RomaniaHQ checked Sep 16, 20261-105 contacts →

Partial evidence

“Voxbee este un operator de telefonie licențiat ANCOM, dedicat să redefinească experiența în domeniul telecomunicațiilor.”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceSector 2, RomaniaHQ checked Sep 16, 202611-504 contacts →

Indirect evidence

“Tele Grup® reprezinta un portofoliu de afaceri in continua crestere, dezvoltat pe o fundatie solida de valori impartasite atat de partenerii externi cat si de cei interni.”

Source: RevenueBase Database · checked Sep 16, 2026
17Partial evidenceSector 3, RomaniaHQ checked Sep 16, 20261-103 contacts →

Partial evidence

“Founded in 2013, Invict Engineering is a trusted partner for top-tier engineering solutions in the telecommunications sector, serving clients across Europe, the USA, and Canada.”

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidenceBucuresti, RomaniaHQ checked Sep 16, 20261-101 contacts →

Partial evidence

“Cu o experienta de peste 10 ani in domeniul telecomunicatiilor, Fiber Optic Solutions vine in intampinarea clientilor cu servicii de jontionare fibra optica, masuratori, cablari…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 18 of 51 telecom infrastructure companies based in Romania

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Telecom infrastructure companies based in Romania at a glance

As of Sep 16, 2026
17.8%Verified-email coverage
23.2Average contacts per company
11-50Median size (employees)
47.1%Largest-city concentration · Bucharest
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
19
51-200
6
201-500
4
501-1,000
2
1,001-5,000
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 51 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 telecom infrastructure 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 “telecom infrastructure 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 infrastructure 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 infrastructure 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, 211 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 16, 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 telecom infrastructure 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 infrastructure companies are there based in Romania?

RevenueBase identified 51 telecom infrastructure 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?

Prime Telecom, headquartered in Bucharest, tops this list with the largest team on record.

Which city has the most telecom infrastructure companies?

Bucharest leads with 24 headquartered companies, followed by Bucuresti (5) 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 211 verified decision-maker contacts tracked across these 51 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 16, 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.