The overwhelming of majority of beer brewed in the Czech Republic is bottom-fermenting. Uniquely amongst traditional lager countries, 10 degree beer (OG 1040; 3.5-4% alc.vol.) is the biggest seller.
Some brewpubs make unfiltered versions of the classic Czech styles.
This is a breakdown of the bottom-fermenting styles:

Karoliny Svetle 4, 370 21, Ceske Budejovice, Czech Republic

Founded in 1895 by Czech privileged brewers - owners of local brewing rights  and  Czech  businessmen, Czech  pivovar was the direct predecessor of  Budejovicki Budvar. The new brewery has therefore upheld a direct historical  tradition of brewing in Ceske Budejovice that dates back to the 13th century,  when brewing started in the town.

PILSNER URQUELL

U Prazdroje 7, Plzeň,  304 97

BUDEJOVICKY MESTANSKY PIVOVAR

Ceske Budejovice, Lidicka 458/51

GAMBRINUS

Plzeňský Prazdroj, a. s. – Pivovar Gambrinus

U Prazdroje 7, Plzeň 304 97

In the domestic market, the line of Gambrinus products constitutes the most consistent range of top quality beers of different types within one brand.

STAROPRAMEN

Nádražní 84, 150 54, Prague  5

Pivovary Staropramen is the second largest beer producer in the Czech Republic, with a 14% share of the domestic market. Staropramen beers are brewed according to original recipes, preserving traditional brewing procedures, and with emphasis on selection of first-class ingredients. Pivovary Staropramen are the third largest Czech beer exporter and our brands are exported to 36 countries of the world.

PIVOVAR BERNARD

5. kvetna 1, 396 01, Humpolec, Czech Republic

One of the Czech Republic's finest beers, this lager is embued with many of the qualities with which the experienced drinker of Czech beer will be familiar. It is neither too gaseous nor too flat. Its flavour is that of a full bodied Pilsner and redolent of many of those better, and more expensive, Czech lagers. If you like Czech beer and want to get wasted, or if indeed, and more likely, you already are, then this is the drink for you.

VELKOPOPOVICKY  KOZEL

Ringhofferova 1, 251 69, Velké Popovice

A Traditional Czech brand that keeps abreast of the times.

KRUŠOVICE