Company lists · Data refreshed September 2026

Top 25 Legacy system modernization companies based in Serbia

Name: Legacy system modernization companies based in Serbia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 67 companies tracked

RevenueBase identified 67 legacy system modernization companies headquartered in Serbia as of September 2026 and tracks 2,876 professional contacts across them, including 1,114 with verified work emails. Belgrade is the largest hub.

This list covers legacy system modernization 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 20, 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 20, 2026 86% judged on-target in blind review

67Companies

2,876Contacts tracked

1,114Verified emails

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The 25 largest legacy system modernization companies based in Serbia

Ranked by team size

Top 25 of 67 legacy system modernization companies based in Serbia, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to legacy system modernization 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Vega IT	Indirect evidence	Novi Sad, SerbiaHQ checked Sep 20, 2026	501-1,000	930 contacts →
	Indirect evidence “Founded in 2008, Vega IT is an AI-native digital transformation partner with 900+ professionals and more than 1,500 delivered projects.” Source: RevenueBase Database · checked Sep 20, 2026
2	Saga Beograd	Indirect evidence	Belgrade, SerbiaHQ checked Sep 20, 2026	201-500	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 20, 2026
3	M&i Systems Group	Partial evidence	Novi Sad, SerbiaHQ checked Sep 20, 2026	201-500	180 contacts →
	Partial evidence “M&I Systems Group is a fast-growing tech leader in digital transformation, business consulting, and development, with 35 years of market experience.” Source: RevenueBase Database · checked Sep 20, 2026
4	Telegroup LTD	Indirect evidence	Beograd, SerbiaHQ checked Sep 20, 2026	201-500	152 contacts →
	Indirect 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 20, 2026
5	MDS Informaticki Inzenjering	Partial evidence	Belgrade, SerbiaHQ checked Sep 20, 2026	51-200	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 20, 2026
6	Oblak Tehnologije	Indirect evidence	Belgrade, SerbiaHQ checked Sep 20, 2026	51-200	82 contacts →
	Indirect evidence “Objedinjujemo softverska i hardverska rešenja u jedan jedinstven sistem koji brzo i efikasno unapređuje svako poslovanje.” Source: RevenueBase Database · checked Sep 20, 2026
7	Ibis Solutions	Indirect evidence	New Belgrade, SerbiaHQ checked Sep 20, 2026	51-200	54 contacts →
	Indirect evidence “As part of the Ibis Group, established in 1996, Ibis Solutions is one of the leading providers of IT solutions in Southeast Europe, enabling businesses to transform, scale, and…” Source: RevenueBase Database · checked Sep 20, 2026
8	Logeecom	Partial evidence	Belgrade, SerbiaHQ checked Sep 20, 2026	11-50	48 contacts →
	Partial evidence “Logeecom is a company that provides digital transformation, product development, e-commerce, system / application integration and consulting services based on expertise in the…” Source: RevenueBase Database · checked Sep 20, 2026
9	Enetel Solutions	Partial evidence	Stari Grad, SerbiaHQ checked Sep 20, 2026	51-200	43 contacts →
	Partial evidence “ENETEL SOLUTIONS is a software development and system integration company.” Source: RevenueBase Database · checked Sep 20, 2026
10	Oxoftware DOO	Indirect evidence	Belgrade, SerbiaHQ checked Sep 20, 2026	11-50	39 contacts →
	Indirect evidence “Oxoftware is a company located in Belgrade which develops software, service support and offers consulting services.” Source: RevenueBase Database · checked Sep 20, 2026
11	Datatek	Indirect evidence	Belgrade, SerbiaHQ checked Sep 20, 2026	11-50	38 contacts →
	Indirect 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 20, 2026
12	Nqode Software Company	Indirect evidence	Novi Sad, SerbiaHQ checked Sep 20, 2026	11-50	31 contacts →
	Indirect evidence “We are a premium engineering partner building secure, scalable, AI-powered products for companies that can't afford to get software wrong.” Source: RevenueBase Database · checked Sep 20, 2026
13	Antech Consulting	Indirect evidence	Novi Sad, SerbiaHQ checked Sep 20, 2026	11-50	30 contacts →
	Indirect evidence “Antech Consulting is a software development company focused on the execution of technology strategy and transformation.” Source: RevenueBase Database · checked Sep 20, 2026
14	Egzakta Consulting	Indirect evidence	Belgrade, SerbiaHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “Egzakta Advisory is a consulting company specialized in Management and IT Consulting, Financial services and Telco industries across the region.” Source: RevenueBase Database · checked Sep 20, 2026
15	Exxeta Serbia	Indirect evidence	Belgrade, SerbiaHQ checked Sep 20, 2026	11-50	21 contacts →
	Indirect evidence “Our motivation for over 15 years: the unbridled passion for new things, for digital change through technological solutions.” Source: RevenueBase Database · checked Sep 20, 2026
16	The Digital Factory	Indirect evidence	Belgrade, SerbiaHQ checked Sep 20, 2026	11-50	17 contacts →
	Indirect evidence “Your long-term partner in co-creation, co-design, production, delivery, and continuous improvement of digital products and services.” Source: RevenueBase Database · checked Sep 20, 2026
17	thinkbig.dev	Indirect evidence	Belgrade, SerbiaHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “We are a team of skilled programmers dedicated to solving complex problems and driving business growth.” Source: RevenueBase Database · checked Sep 20, 2026
18	Gray Cell	Indirect evidence	Novi Sad, SerbiaHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “Gray Cell is a software development company and digital transformation consultancy that provides cutting-edge engineering solutions helping clients on their digital evolution…” Source: RevenueBase Database · checked Sep 20, 2026
19	Cre8 Meta Studios	Indirect evidence	Belgrade Center, SerbiaHQ checked Sep 20, 2026	11-50	8 contacts →
	Indirect evidence “Serbia’s leading partner for tailored integration solutions, designed to meet complex B2B requirements.” Source: RevenueBase Database · checked Sep 20, 2026
20	Devart Solutions	Indirect evidence	Beograd, SerbiaHQ checked Sep 20, 2026	1-10	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 20, 2026
21	Eracons DOO Novi SAD	Indirect evidence	Novi Sad, SerbiaHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence “Eracons is a digital consulting firm focused on lowering risks in complex change and transformation initiatives.” Source: RevenueBase Database · checked Sep 20, 2026
22	Dataplan Informatika D.O.O	Indirect evidence	Belgrade, SerbiaHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “IT Company” Source: RevenueBase Database · checked Sep 20, 2026
23	ONDO	Indirect evidence	Belgrade, SerbiaHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence “Ondo SETI is a carefully selected group of experts and industry gurus, with passion for technology and business, gathered around one single, yet substantial goal; to help you…” Source: RevenueBase Database · checked Sep 20, 2026
24	Ithaca	Indirect evidence	Belgrade, SerbiaHQ checked Sep 20, 2026	1-10	6 contacts →
	Indirect evidence “As Odissey has struggled for years to finally reach his beloved island of Ithaca, so our clients had navigated between Scyllas and Charybdis’ of information technology before…” Source: RevenueBase Database · checked Sep 20, 2026
25	Project Factory	Indirect evidence	Belgrade, SerbiaHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence “Dobrodošli u Project factory!” Source: RevenueBase Database · checked Sep 20, 2026

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: legacy system modernization 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 legacy system modernization companies.
Partial evidence: Its own public description names part of legacy system modernization companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name legacy system modernization 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 67 legacy system modernization companies based in Serbia

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Legacy system modernization companies based in Serbia at a glance

As of Sep 20, 2026

38.7%Verified-email coverage

42.9Average contacts per company

1-10Median size (employees)

44.8%Largest-city concentration · Belgrade

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured worldwide rather than for Serbia, so it is reported there. Company counts and contact totals on this page are exact for Serbia, over 67 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 legacy system modernization 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 “legacy system modernization 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 legacy system modernization 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 legacy system modernization 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, 1,114 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 20, 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.

Legacy system modernization companies by metro

Legacy system modernization companies in Belgrade30

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 legacy system modernization 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 legacy system modernization companies are there based in Serbia?

RevenueBase identified 67 legacy system modernization 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?

Vega IT, headquartered in Novi Sad, tops this list with the largest team on record.

Which city has the most legacy system modernization companies?

Belgrade leads with 30 headquartered companies, followed by Novi Sad (19) and Beograd (4).

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 1,114 verified decision-maker contacts tracked across these 67 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 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 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.