Company lists · Data refreshed September 2026
Top 25 IT infrastructure and security companies based in Serbia
RevenueBase identified 81 IT infrastructure and security companies headquartered in Serbia as of September 2026 and tracks 1,516 professional contacts across them, including 669 with verified work emails and 16 with mobile numbers. Belgrade is the largest hub.
This list covers IT infrastructure and security companies headquartered in Serbia, 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 27, 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.
The 25 largest IT infrastructure and security companies based in Serbia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 297 contacts → | ||||
Partial evidence “Orion telekom je domaći telekomunikacioni i IT provajder specijalizovan za napredna infrastrukturna, cloud i data centar rešenja za poslovne korisnike.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 191 contacts → | ||||
Indirect evidence “Established in 1989, Saga now has over 300 employees, with headquarters in Belgrade (Serbia) and subsidiaries in the region (Montenegro, Bosnia and Herzegovina, Macedonia).” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 152 contacts → | ||||
Strong evidence “Who we are We are tech company specialized in software development, implementation of IT solutions and infrastructure engineering services tailored to meet requirements of various…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 132 contacts → | ||||
Indirect evidence “PULSEC je regionalni lider u oblasti sajber bezbednosti, sa centrima u Srbiji, BiH i Švajcarskoj.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 107 contacts → | ||||
Partial evidence “MDS is a domestic IT company with over five decades of experience in the development and implementation of advanced information systems.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 80 contacts → | ||||
Partial evidence “IT/Cloud Consulting | IT Staff Augmentation | SOC Service BlueGrid.io is an IT/Cloud Consulting firm solving the biggest problem of all startups and enterprises in the growth…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 49 contacts → | ||||
Partial evidence “NetSeT Global Solutions is an IT company that provides government institutions and corporations with high-quality and secure information systems, streamlining their business…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 38 contacts → | ||||
Partial evidence “Datatek je vaš odgovoran partner u svetu inovativnih IT rešenja, koja integrišu i optimizuju računske sisteme kako bi radili pouzdanije.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 33 contacts → | ||||
Indirect evidence “E-Smart Systems Company deals with development, design, consulting, education, production, installation and implementation of information technology solutions.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 29 contacts → | ||||
Indirect evidence “ThinkIT’s unique model combines an array of advanced services and expert technical resources with a far-reaching supply chain to provide your business the level of solution…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 26 contacts → | ||||
Partial evidence “Who we are: We are experts in cyber security.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 26 contacts → | ||||
Indirect evidence “Prointer from Belgrade is a leading company in Serbia and the region for providing services and implementing solutions in the field of Information Technologies.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 13 contacts → | ||||
Indirect evidence “HiTeam je osnovan 2003 godine u sastavu tadašnjeg Hemofarm-a.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 12 contacts → | ||||
Partial evidence “NES Communications is a leading provider of innovative ICT solutions and security systems, helping businesses stay connected and protected.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 12 contacts → | ||||
Indirect evidence “Welcome to the NetCast world of smart networks.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 10 contacts → | ||||
Indirect evidence “Amber Software is one of the leading companies in design, delivery and integration of ICT solutions in Serbia.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 9 contacts → | ||||
Indirect evidence “Company that is highly specialized for information technologies.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 9 contacts → | ||||
Indirect evidence “Since 2011, we strive to make technical problems easier to our customers.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 9 contacts → | ||||
Indirect evidence “We architect and secure your cloud” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 contacts → | ||||
Indirect evidence “We live by our motto,"From Idea to Resolution," because we understand that every great business journey starts with a spark of an idea.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 8 contacts → | ||||
Indirect evidence “DevArt is a consulting and software development company specialized in a wide range of information technology.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 7 contacts → | ||||
Strong evidence “Net++ technology was founded in 2002 and ever since clearly focuses on IT security, data protection, computer network and system security and management.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 7 contacts → | ||||
Indirect evidence “Perspekta d.o.o.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 7 contacts → | ||||
Strong evidence “With a "practice" of strong expertise CyberGate Defense Europe makes IT Security one of its core businesses aside from System Integration and Advisory and Consulting Services.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 6 contacts → | ||||
Indirect evidence “Infolab is ICT company founded as result of 15 years’ experience in the field of information technology.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: IT infrastructure and security companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names IT infrastructure and security companies.
- Partial evidence
- Its own public description names part of IT infrastructure and security companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT infrastructure and security companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 81 IT infrastructure and security companies based in Serbia
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IT infrastructure and security companies based in Serbia at a glance
As of Sep 27, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 29.0dCompany record updated
Median 90.0dHow 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 IT infrastructure and 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 Serbia whose own description of what they do matches “IT infrastructure and 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 IT infrastructure and 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 IT infrastructure and security companies, and records with no verified work email. Companies headquartered outside Serbia 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, 669 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 27, 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 IT infrastructure and 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 IT infrastructure and security companies are there based in Serbia?
RevenueBase identified 81 IT infrastructure and security companies headquartered in Serbia 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?
Orion Telekom, headquartered in Beograd, tops this list with the largest team on record.
Which city has the most IT infrastructure and security companies?
Belgrade leads with 39 headquartered companies, followed by Beograd (10) and Novi Sad (6).
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 669 verified decision-maker contacts tracked across these 81 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 27, 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.
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