(T) +420 2 3429 9800
(F) +420 2 3429 9801
H1.cz is the biggest online performance marketing agency operating in the Czech and Slovak Republics with a strong focus on search engine marketing, SEO, affiliate and conversion marketing.
It became part of GroupM in July 2013.
H1.cz is part of QUISMA, GroupM's agency for performance marketing.