Company lists · Data verified August 2026

Top 25 Custom software development firms based in Ukraine

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 709 companies tracked

There are 709 custom software development firms headquartered in Ukraine (RevenueBase, August 2026). RevenueBase tracks 10,859 professional contacts across them, including 2,131 with verified work emails and 151 with mobile numbers. Kyiv is the largest hub.

This list covers custom software development firms headquartered in Ukraine, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

709Companies

10,859Contacts tracked

2,131Verified emails

151Mobile numbers

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The 25 largest custom software development firms based in Ukraine

Ranked by team size

Top 25 of 709 custom software development firms based in Ukraine, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Onix-Systems	Kropyvnytskyi	201-500	347	161
2	HYS Enterprise	Odessa	201-500	230	64
3	Volo Software Development Company	Odesa	201-500	219	126
4	Glorium Technologies	Kyiv	201-500	217	87
5	NIX Ukraine	Kharkiv	1,001-5,000	192	4
6	Appexoft	Lviv	201-500	171	3
7	Digis, A Fiverr Company Nyse Fvrr	Lviv	201-500	164	41
8	Digitally Inspired, Part Of Intellias	Lviv	201-500	152	20
9	Ukeess Software House	Lviv Lviv	51-200	145	107
10	Meduzzen	Odessa	51-200	140	27
11	Brights	Kyiv	51-200	139	68
12	IN	Kyiv Kyiv	201-500	132	3
13	Sysgears	Lviv	51-200	123	57
14	Lasoft Software Development	Lviv	51-200	117	44
15	abz.agency	Kyiv Kyiv	51-200	96	27
16	APIKO	Ternopil	51-200	94	55
17	Droid Technologies	Kyiv	51-200	61	23
18	Jevera	Kyiv	51-200	61	21
19	It-Dimension	Zaporizhzhia Zaporizhzhia	51-200	60	12
20	Bart Solutions	Lviv Lviv	51-200	59	28
21	Corpsoft Solutions	Kyiv Kyiv City	51-200	58	20
22	IDAP	Kiev	51-200	56	2
23	Pixelteh	Zaporizhzhya Zaporizhzhya	51-200	49	1
24	Centum-D	Dnipro	51-200	47	8
25	Spilna Sprava	n/a	51-200	43	3

Showing 25 of 709 custom software development firms based in Ukraine

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Custom software development firms based in Ukraine at a glance

As of Aug 28, 2026

11-50Median size (employees)

KyivLargest hub · 96 HQs

151Contacts with mobile numbers

5Emails re-verified in last 30 days

Companies by employee count

1-10

177

11-50

427

51-200

201-500

1,001-5,000

Custom software development firms by metro

Metro	Companies
Custom software development firms in Kyiv	96
Custom software development firms in Kiev	87
Custom software development firms in Lviv	68
Custom software development firms in Kharkiv	44
Custom software development firms in Kyiv Kyiv	35
Custom software development firms in Lviv Lviv	29
Custom software development firms in Kharkiv Kharkiv	25

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “custom software development firms”, with match quality audited by blind human judging, and headquartered in Ukraine.
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: Contact records re-verify on a rolling cadence; 5 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many custom software development firms are there based in Ukraine?

There are 709 custom software development firms headquartered in Ukraine as of August 2026 (RevenueBase).

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 development firms?

Kyiv leads with 96 headquartered companies, followed by Kiev (87) and Lviv (68).

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 2,131 verified decision-maker contacts tracked across these 709 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.