Company lists · Data verified August 2026

Top 25 List building services based in Poland

Name: List building services based in Poland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 574 companies tracked

There are 574 list building services headquartered in Poland (RevenueBase, August 2026). RevenueBase tracks 2,922 professional contacts across them, including 729 with verified work emails and 56 with mobile numbers. Warszawa is the largest hub.

This list covers list building services 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.

574Companies

2,922Contacts tracked

729Verified emails

56Mobile numbers

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The 25 largest list building services based in Poland

Ranked by team size

Top 25 of 574 list building services 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	Adamietz S.A	Lodz	501-1,000	315	198
2	ADC	Katowice	51-200	92	28
	RevenueBasePublisher of this directory	Boston, MA	n/a	n/a	Try free
3	Grupa Reesco	Warszawa	51-200	82	59
4	Goldbeck Polska	Komorniki	501-1,000	59	33
5	Spec BAU Polska	Oswiecim	51-200	59	22
6	Ekoinbud	n/a	51-200	56	27
7	Trasko Invest	Ostrzeszow	201-500	56	12
8	ZDI Sp. Z O.O	Lublin	51-200	50	6
9	Texom Sp. Z O.O	Rzeszow	51-200	40	14
10	Climamedic	Michalowice	51-200	32	9
11	Re-Bau	Krakow	51-200	27	9
12	Iliard Architecture & Interior Design	Krakow	11-50	26	19
13	Kome Polska Sp. Z O.O	Warsaw	51-200	25	12
14	TEQUM	Krakow	11-50	24	13
15	Savi Group	Oborniki Slaskie	51-200	22	14
16	Q2studio	Wroclaw	51-200	21	7
17	Agro Engineering	Kropyvnytskyi	11-50	19	1
18	Z500	Warszawa	51-200	18	7
19	NEW Construction Concept	Katowice	11-50	16	10
20	Horizone Studio	Krakow	11-50	15	3
21	Dyskret Polska	Krakow	51-200	13	5
22	Grupa Wama	Gdansk	51-200	12	9
23	Trescon	Warszawa	51-200	11	8
24	Instal ONE	Warszawa	11-50	11	8
25	Grupa 5, Warsaw, Poland	Warsaw	51-200	11	4

Showing 25 of 574 list building services based in Poland

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List building services based in Poland at a glance

As of Aug 28, 2026

1-10Median size (employees)

WarszawaLargest hub · 82 HQs

56Contacts with mobile numbers

14Emails re-verified in last 30 days

Companies by employee count

1-10

379

11-50

122

51-200

201-500

501-1,000

1,001-5,000

List building services by metro

Metro	Companies
List building services in Warszawa	82
List building services in Krakow	57
List building services in Wroclaw	34
List building services in Poznan	29
List building services in Warsaw	26
List building services in Lodz	24
List building services in Gdansk	21

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 “list building services”, 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; 14 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 list building services are there based in Poland?

There are 574 list building services headquartered in Poland as of August 2026 (RevenueBase).

What is the largest company on this list?

Adamietz S.A, headquartered in Lodz, tops this list with the largest team on record.

Which city has the most list building services?

Warszawa leads with 82 headquartered companies, followed by Krakow (57) and Wroclaw (34).

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 729 verified decision-maker contacts tracked across these 574 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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Related lists

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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.