Czech company check

968,034 Czech companies from Czech Statistical Office business register (RES), source register of ARES, 881,849 of them active in the latest file (version 2026-10-15). Search by name or company ID (IČO), or browse by industry, town and month of incorporation.

Largest industries

CZ-NACE (NACE Rev. 2) code	Activity	Companies
6820	Renting and operating of own or leased real estate	162,624
9499	Activities of other membership organisations n.e.c.	61,939
461	Wholesale on a fee or contract basis	35,204
46	Wholesale trade, except of motor vehicles and motorcycles	25,964
74	Other professional, scientific and technical activities	25,909
56100	Restaurants and mobile food service activities	24,168
4120	Construction of residential and non-residential buildings	21,969
46900	Non-specialised wholesale trade	20,939
620	Computer programming, consultancy and related activities	16,799
93110	Operation of sports facilities	15,592
471	Retail sale in non-specialised stores	14,000
49410	Freight transport by road	13,840
68310	Real estate agencies	13,137
431	Demolition and site preparation	12,173
94993	Activities of other membership organisations n.e.c.	11,304

All industry codes

Towns with the most companies

Praha 364,680
Brno 68,736
Ostrava 31,127
Plzeň 17,617
Olomouc 11,581
Liberec 10,340
České Budějovice 10,003
Hradec Králové 9,213
Pardubice 8,076
Zlín 7,502
Karlovy Vary 6,953
Ústí nad Labem 6,678
Kladno 4,592
Jihlava 4,077
Opava 3,932

All towns

Incorporations by month

All months

Source: Registr ekonomických subjektů, open data (ČSÚ), CC BY 4.0.