Company lists · Data verified August 2026

Top 25 Custom business software developers based in Poland

Name: Custom business software developers based in Poland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 456 companies tracked

There are 456 custom business software developers headquartered in Poland (RevenueBase, August 2026). RevenueBase tracks 6,445 professional contacts across them, including 2,526 with verified work emails and 120 with mobile numbers. Warszawa is the largest hub.

This list covers custom business software developers headquartered in Poland, 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.

456Companies

6,445Contacts tracked

2,526Verified emails

120Mobile numbers

Unlock all 456 companies Free account · no credit card · 2 minutes

The 25 largest custom business software developers based in Poland

Ranked by team size

Top 25 of 456 custom business software developers based in Poland, 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	Asseco Business Solutions S.A	Lublin	501-1,000	671	492
2	Symfonia	Warszawa	501-1,000	375	261
3	Avanquest	Krakow	201-500	313	129
4	BPSC	Katowice Silesia	51-200	210	80
5	BPX	n/a	201-500	200	8
6	Syberry	Krakow	201-500	181	60
7	Dahliamatic Sp. Z O.O	Warsaw	201-500	170	116
8	Streamsoft	Zielona Gora	201-500	161	70
9	Kotrak	Gdansk	201-500	127	92
10	ARC Consulting	Krakow	51-200	117	66
11	BMS	Warszawa	51-200	113	47
12	Unity-T Group Sp. Z O.O. Sp.K	Krakow	51-200	94	31
13	Infover	Kielce	51-200	87	10
14	Primesoft Polska	Poznan	51-200	84	48
15	LBPRO	Lodz	51-200	82	1
16	fireup.pro	Rybnik	51-200	58	29
17	Connecto. Informatyka W Biznesie	Sosnowiec	51-200	45	1
18	Bakk Sp. Z O.O	Warszawa	51-200	43	23
19	Delegate	Katowice	51-200	42	28
20	Proalpha Polska Sp. Z O.O	Zielona Gora	1,001-5,000	41	33
21	yosi.pl	Rzeszow	51-200	39	21
22	Arcus SI	Warszawa	51-200	38	21
23	Ekspert Systemy Informatyczne	Lodz	51-200	36	24
24	TYMIQ	Poznan	51-200	36	23
25	Abile Sp. Z O.O	Warszawa	11-50	31	11

Showing 25 of 456 custom business software developers based in Poland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,526 reachable decision-makers.

Free account · no credit card

See all 456 companies

Custom business software developers based in Poland at a glance

As of Aug 28, 2026

11-50Median size (employees)

WarszawaLargest hub · 51 HQs

120Contacts with mobile numbers

5Emails re-verified in last 30 days

Companies by employee count

1-10

204

11-50

204

51-200

201-500

501-1,000

1,001-5,000

Custom business software developers by metro

Metro	Companies
Custom business software developers in Warszawa	51
Custom business software developers in Warsaw	40
Custom business software developers in Krakow	35
Custom business software developers in Wroclaw	33
Custom business software developers in Poznan	29
Custom business software developers in Katowice	15
Custom business software developers in Lodz	14
Custom business software developers in Rzeszow	13

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 business software developers”, with match quality audited by blind human judging, and headquartered in Poland.
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 business software developers are there based in Poland?

There are 456 custom business software developers headquartered in Poland as of August 2026 (RevenueBase).

What is the largest company on this list?

Asseco Business Solutions S.A, headquartered in Lublin, tops this list with the largest team on record.

Which city has the most custom business software developers?

Warszawa leads with 51 headquartered companies, followed by Warsaw (40) and Krakow (35).

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 2,526 verified decision-maker contacts tracked across these 456 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.

Ready to reach these companies? Verified emails and direct dials for all 456 custom business software developers based in Poland. Start with a free account, no credit card.

Get the full list

Related lists

Custom business software developers by geography

Browse the directory

Browse: Companies home · All Poland lists · All Custom business software developers lists · New lists

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.