Company lists · Data refreshed September 2026

Top 25 Custom software engineering partners based in Ukraine

Name: Custom software engineering partners based in Ukraine
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 548 companies tracked

RevenueBase identified 548 custom software engineering partners headquartered in Ukraine as of September 2026 and tracks 10,899 professional contacts across them, including 2,867 with verified work emails and 134 with mobile numbers. Kyiv is the largest hub.

This list covers custom software engineering partners headquartered in Ukraine, 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 24, 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 24, 2026 86% judged on-target in blind review

548Companies

10,899Contacts tracked

2,867Verified emails

134Mobile numbers

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The 25 largest custom software engineering partners based in Ukraine

Ranked by team size

Top 25 of 548 custom software engineering partners based in Ukraine, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to custom software engineering partners: 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	Onix-Systems	Strong evidence	Kropyvnytskyi, UkraineHQ checked Sep 24, 2026	201-500	335 contacts →
	Strong evidence “Onix-Systems is a full-scope software development company that delivers outstanding results and excellent customer service.” Source: RevenueBase Database · checked Sep 24, 2026
2	NIX Ukraine	Strong evidence	Kharkiv, UkraineHQ checked Sep 24, 2026	1,001-5,000	193 contacts →
	Strong evidence “NIX is a leading custom software development company based in Ukraine.” Source: RevenueBase Database · checked Sep 24, 2026
3	Appexoft	Indirect evidence	Lviv, UkraineHQ checked Sep 24, 2026	201-500	179 contacts →
	Indirect evidence “We created our company to turn into reality what exists in our imagination.” Source: RevenueBase Database · checked Sep 24, 2026
4	Ukeess Software House	Strong evidence	Lviv, UkraineHQ checked Sep 24, 2026	51-200	147 contacts →
	Strong evidence “UKEESS Software House is a custom software development and consulting company.” Source: RevenueBase Database · checked Sep 24, 2026
5	Pecode	Strong evidence	Львів, UkraineHQ checked Sep 24, 2026	51-200	145 contacts →
	Strong evidence “Since 2017 Pecode Software is striving to create custom web, and mobile solutions for their clients, as well as build trustworthy relationships with both their customers and…” Source: RevenueBase Database · checked Sep 24, 2026
6	IN	Partial evidence	Kyiv, UkraineHQ checked Sep 24, 2026	201-500	132 contacts →
	Partial evidence “Our team helps to develop high-quality software products, fitting both the deadline and budget.” Source: RevenueBase Database · checked Sep 24, 2026
7	inventorsoft.co	Strong evidence	Chernivtsi, UkraineHQ checked Sep 24, 2026	51-200	123 contacts →
	Strong evidence “AI-powered software development partner that you can trust InventorSoft provides top-tier, pre-selected developers for tech and SaaS companies.” Source: RevenueBase Database · checked Sep 24, 2026
8	Blackthorn Vision	Partial evidence	Lviv, UkraineHQ checked Sep 24, 2026	51-200	122 contacts →
	Partial evidence “Blackthorn Vision is a Microsoft-partnered.NET and AI development company.” Source: RevenueBase Database · checked Sep 24, 2026
9	Codebridge Technology, INC	Strong evidence	Kyiv, UkraineHQ checked Sep 24, 2026	51-200	117 contacts →
	Strong evidence “Codebridge builds AI systems and custom software for growing companies.” Source: RevenueBase Database · checked Sep 24, 2026
10	EXOFT	Strong evidence	Lviv, UkraineHQ checked Sep 24, 2026	51-200	90 contacts →
	Strong evidence “Exoft is a custom software development company headquartered in Ukraine with over a decade of experience providing software solutions to clients worldwide.” Source: RevenueBase Database · checked Sep 24, 2026
11	Sevenpro	Partial evidence	Kyiv, UkraineHQ checked Sep 24, 2026	51-200	70 contacts →
	Partial evidence “We are a team of professionals who provide high-quality services in Software Development and Technology Consulting.” Source: RevenueBase Database · checked Sep 24, 2026
12	Droid Technologies	Partial evidence	Kyiv, UkraineHQ checked Sep 24, 2026	51-200	61 contacts →
	Partial evidence “What we do- Embedded C/C++ design (ARM, LPC, STM32, Atmel cortex M0/M3, Atmel AVR, Linux, RTOS)- Server Software (C#, Asp.net, C++, Python, JavaScript NodeJs)- Web Application…” Source: RevenueBase Database · checked Sep 24, 2026
13	Triare	Partial evidence	Cherkassy, UkraineHQ checked Sep 24, 2026	11-50	60 contacts →
	Partial evidence “TRIARE is a software company that helps businesses and startups with their digital needs.” Source: RevenueBase Database · checked Sep 24, 2026
14	SMISS	Partial evidence	Kharkiv, UkraineHQ checked Sep 24, 2026	51-200	58 contacts →
	Partial evidence “SMISS provides quality software solutions in following domains- Web application development - Web-based information systems development - Cloud solutions - Mobile application…” Source: RevenueBase Database · checked Sep 24, 2026
15	Bits Orchestra	Strong evidence	Zymna Voda, UkraineHQ checked Sep 24, 2026	11-50	57 contacts →
	Strong evidence “Bits Orchestra is a software engineering company specializing in the modernization of business-critical web platforms, CMS, and digital experience platforms.” Source: RevenueBase Database · checked Sep 24, 2026
16	IDAP	Strong evidence	Kiev, UkraineHQ checked Sep 24, 2026	51-200	55 contacts →
	Strong evidence “IDAP is a digital solution boutique providing software engineering and consulting services to startups and established businesses.” Source: RevenueBase Database · checked Sep 24, 2026
17	Amtoss	Strong evidence	Kharkiv, UkraineHQ checked Sep 24, 2026	51-200	53 contacts →
	Strong evidence “AMTOSS is a software development company that specializes in delivering custom-tailored technology solutions for companies of all sizes, from SMBs to some of the biggest…” Source: RevenueBase Database · checked Sep 24, 2026
18	Volpis	Indirect evidence	Lviv, UkraineHQ checked Sep 24, 2026	11-50	50 contacts →
	Indirect evidence “Volpis is a company of ambitious professionals providing Web & Mobile App Design and Development services for more than 7 years.” Source: RevenueBase Database · checked Sep 24, 2026
19	Mascode	Partial evidence	Kyiv, UkraineHQ checked Sep 24, 2026	11-50	50 contacts →
	Partial evidence “We specialize in end-to-end software development, guiding our clients through every stage, from initial discovery to seamless implementation and ongoing support.” Source: RevenueBase Database · checked Sep 24, 2026
20	Jappware	Strong evidence	Lviv, UkraineHQ checked Sep 24, 2026	51-200	48 contacts →
	Strong evidence “Jappware is a trustworthy software development partner for businesses and individual entrepreneurs worldwide.” Source: RevenueBase Database · checked Sep 24, 2026
21	Cprime Studios	Partial evidence	Kyiv, UkraineHQ checked Sep 24, 2026	51-200	45 contacts →
	Partial evidence “Cprime Studios, a Cprime Group Company, is the software product development company.” Source: RevenueBase Database · checked Sep 24, 2026
22	Spilna Sprava	Indirect evidence	Vinnytsya, UkraineHQ checked Sep 24, 2026	51-200	42 contacts →
	Indirect evidence “Spilna Sprava was founded in 90-th by the group of individuals who decided to create their proprietary business after leaving Flextronix Ukraine and Atomic Dog Publishing in the…” Source: RevenueBase Database · checked Sep 24, 2026
23	Brainence	Partial evidence	Lviv, UkraineHQ checked Sep 24, 2026	11-50	39 contacts →
	Partial evidence “Brainence is a software development company with 9+ years of experience building powerful products and scaling development teams.” Source: RevenueBase Database · checked Sep 24, 2026
24	Faster Than Light	Strong evidence	Kyiv, UkraineHQ checked Sep 24, 2026	11-50	38 contacts →
	Strong evidence “We are Faster Than Light, an European custom software development company originally from Kyiv, Ukraine.” Source: RevenueBase Database · checked Sep 24, 2026
25	Interlink, Ukraine	Partial evidence	Cherkasy, UkraineHQ checked Sep 24, 2026	51-200	38 contacts →
	Partial evidence “InterLink is a software development company with a rich history and significant technical expertise.” Source: RevenueBase Database · checked Sep 24, 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 engineering partners. 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 engineering partners.
Partial evidence: Its own public description names part of custom software engineering partners, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom software engineering partners. 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 548 custom software engineering partners based in Ukraine

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Custom software engineering partners based in Ukraine at a glance

As of Sep 24, 2026

26.3%Verified-email coverage

1.2%Mobile-number coverage

19.9Average contacts per company

11-50Median size (employees)

13.0%Largest-city concentration · Kyiv

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

129

11-50

298

51-200

201-500

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

2,1530–30

61731–60

5561–90

190–180

41180+

Company record updated

Median 90.0d

00–30

1,22631–60

4,54961–90

4,45990–180

665180+

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 engineering partners, 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 Ukraine whose own description of what they do matches “custom software engineering partners”. 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 engineering partners), 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 engineering partners, and records with no verified work email. Companies headquartered outside Ukraine 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, 2,867 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 24, 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 engineering partners by metro

Custom software engineering partners in Kyiv71
Custom software engineering partners in Lviv53
Custom software engineering partners in Kiev49
Custom software engineering partners in Kharkiv35
Custom software engineering partners in Kyiv Kyiv26
Custom software engineering partners in Lviv Lviv26

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 engineering partners, 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 engineering partners are there based in Ukraine?

RevenueBase identified 548 custom software engineering partners headquartered in Ukraine 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?

Onix-Systems, headquartered in Kropyvnytskyi, tops this list with the largest team on record.

Which city has the most custom software engineering partners?

Kyiv leads with 71 headquartered companies, followed by Lviv (53) and Kiev (49).

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 2,867 verified decision-maker contacts tracked across these 548 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 24, 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.