Company lists · Data refreshed September 2026

Top 25 Custom software development companies based in Serbia

Name: Custom software development companies based in Serbia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 331 companies tracked

RevenueBase identified 331 custom software development companies headquartered in Serbia as of September 2026 and tracks 3,897 professional contacts across them, including 1,335 with verified work emails and 28 with mobile numbers. Belgrade is the largest hub.

This list covers custom software development 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 1, 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

331Companies

3,897Contacts tracked

1,335Verified emails

28Mobile numbers

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The 25 largest custom software development companies based in Serbia

Ranked by team size

Top 25 of 331 custom software development companies based in Serbia, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to custom software development 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	Quantox Technology	Indirect evidence	Kragujevac, Serbia	201-500	217 contacts →
	Indirect evidence “At Quantox, we grasp the challenge, target the essence and make it possible.” Source: RevenueBase Database · checked Sep 1, 2026
2	Rare Crew	Strong evidence	Belgrade, Serbia	51-200	166 contacts →
	Strong evidence “Rare Crew is a custom enterprise software development company founded in 2011, headquartered in the European Union.” Source: RevenueBase Database · checked Sep 1, 2026
3	Telegroup LTD	Strong evidence	Nis, Serbia	201-500	148 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 1, 2026
4	Itekako	Strong evidence	Belgrade, Serbia	51-200	120 contacts →
	Strong evidence “Mixing highly skilled people and cutting edge technologies to deliver exceptional solutions Itekako is a custom software engineering company buidling cutting edge technology…” Source: RevenueBase Database · checked Sep 1, 2026
5	Codolis	Strong evidence	Novi Sad, Serbia	51-200	94 contacts →
	Strong evidence “is a software development company based in Novi Sad, Serbia, dedicated to transforming your ideas into powerful and reliable software solutions.” Source: RevenueBase Database · checked Sep 1, 2026
6	Intens	Strong evidence	Novi Sad, Serbia	51-200	90 contacts →
	Strong evidence “Intens is a software development company based in Europe specialising in designing and developing bespoke solutions and applications.” Source: RevenueBase Database · checked Sep 1, 2026
7	Diligent	Partial evidence	Nis, Serbia	51-200	75 contacts →
	Partial evidence “Diligent Software is a domestic company was founded in 2020 and currently has close to 100 employees.” Source: RevenueBase Database · checked Sep 1, 2026
8	Soprex D.O.O	Strong evidence	Belgrade, Serbia	51-200	64 contacts →
	Strong evidence “Our expertise is delivering innovative next generation custom software solutions in accordance with specific user requirements.” Source: RevenueBase Database · checked Sep 1, 2026
9	RED Black Tree	Strong evidence	Belgrade, Serbia	51-200	62 contacts →
	Strong evidence “We are Red Black Tree, a specialized software development partner delivering end-to-end custom software solutions since 2012 to clients across Europe, the USA, and beyond.” Source: RevenueBase Database · checked Sep 1, 2026
10	TYLLO	Partial evidence	Belgrade, Serbia	51-200	55 contacts →
	Partial evidence “Tyllo is a turnkey software and business solution provider.” Source: RevenueBase Database · checked Sep 1, 2026
11	Deversity	Partial evidence	Belgrade, Serbia	51-200	52 contacts →
	Partial evidence “We are deversity, a Belgrade based company that harnesses the power of software to tackle complex business challenges.” Source: RevenueBase Database · checked Sep 1, 2026
12	Codeup	Strong evidence	Belgrade, Serbia	51-200	51 contacts →
	Strong evidence “We are a software development company that provides tailored solutions to help businesses achieve their goals.” Source: RevenueBase Database · checked Sep 1, 2026
13	Cinnamon	Strong evidence	Beograd, Serbia	51-200	49 contacts →
	Strong evidence “We are Cinnamon, a software design and development company that helps organizations turn ideas into reliable digital products.” Source: RevenueBase Database · checked Sep 1, 2026
14	Tnation	Strong evidence	Krusevac, Serbia	51-200	48 contacts →
	Strong evidence “TNation is one of the leading professional outsourcing companies in Serbia, specialized in providing software development services.” Source: RevenueBase Database · checked Sep 1, 2026
15	Inssio	Partial evidence	Belgrade, Serbia	51-200	42 contacts →
	Partial evidence “INSSIO helps established companies stabilize, modernize, and scale mission-critical software.” Source: RevenueBase Database · checked Sep 1, 2026
16	Elanwave	Partial evidence	Novi Sad, Serbia	11-50	40 contacts →
	Partial evidence “Welcome to ElanWave - your trusted partner in software innovation!” Source: RevenueBase Database · checked Sep 1, 2026
17	Zesium	Indirect evidence	Novi Sad, Serbia	11-50	39 contacts →
	Indirect evidence “Do you want to bring your IDEA to LIFE?” Source: RevenueBase Database · checked Sep 1, 2026
18	Deploy INC	Indirect evidence	Belgrade, Serbia	51-200	37 contacts →
	Indirect evidence “We craft elegant code-based solutions and deliver critical technology at unparalleled value and speed.” Source: RevenueBase Database · checked Sep 1, 2026
19	TLM Software Design	Strong evidence	Beograd, Serbia	201-500	34 contacts →
	Strong evidence “TLM is a company with more than 25 years of experience in providing software development services worldwide.” Source: RevenueBase Database · checked Sep 1, 2026
20	Vega IT NIŠ	Strong evidence	Nis, Serbia	51-200	33 contacts →
	Strong evidence “We’re software development partners working at the cutting-edge of digital product development.” Source: RevenueBase Database · checked Sep 1, 2026
21	NS WEB Development LLC Novi SAD	Partial evidence	Novi Sad, Serbia	11-50	33 contacts →
	Partial evidence “The aim of the solution focused NS Web Development team is to seek and develop ideas and innovations trying to get prosper for the clients, our company and the community itself…” Source: RevenueBase Database · checked Sep 1, 2026
22	Boopro Technology	Strong evidence	Nis, Serbia	11-50	32 contacts →
	Strong evidence “Boopro Technology is a software development company established in 2017 by a group of technology and business enthusiasts with one purpose: to make continuous innovation and aim…” Source: RevenueBase Database · checked Sep 1, 2026
23	Fourity	Strong evidence	Novi Sad, Serbia	11-50	30 contacts →
	Strong evidence “Fourity is a software development company that specializes in creating highly functional and innovative software solutions for the web and mobile.” Source: RevenueBase Database · checked Sep 1, 2026
24	Digital Atrium Serbia	Strong evidence	Sremska Kamenica, Serbia	11-50	29 contacts →
	Strong evidence “Digital Atrium is software development company focused on mobile technologies.” Source: RevenueBase Database · checked Sep 1, 2026
25	Gecko Solutions D.O.O	Partial evidence	Belgrade, Serbia	51-200	29 contacts →
	Partial evidence “Gecko Solutions is a company specialized in a development of web, mobile and rich user experience applications.” Source: RevenueBase Database · checked Sep 1, 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: custom software development 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 custom software development companies.
Partial evidence: Its own public description names part of custom software development companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom software development 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 331 custom software development companies based in Serbia

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Custom software development companies based in Serbia at a glance

As of Sep 1, 2026

34.3%Verified-email coverage

0.7%Mobile-number coverage

11.8Average contacts per company

1-10Median size (employees)

37.5%Largest-city concentration · Belgrade

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

168

11-50

131

51-200

201-500

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 custom software development 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 “custom software development 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 custom software development 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 custom software development 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, 1,335 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 1, 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.

Custom software development companies by metro

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 custom software development 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 custom software development companies are there based in Serbia?

RevenueBase identified 331 custom software development 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?

Quantox Technology, headquartered in Kragujevac, tops this list with the largest team on record.

Which city has the most custom software development companies?

Belgrade leads with 124 headquartered companies, followed by Novi Sad (77) and Nis (28).

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 1,335 verified decision-maker contacts tracked across these 331 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 1, 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.