Financial terms were not disclosed.
With the acquisition, the two companies have combined to form Zeta Interactive. (Adverb Media itself was made up of three smaller companies: DigitalGrit, a direct response and search marketing company; Temel, a brand marketing agency; and Relevant Noise, a technology company.)
Al DiGuido, CEO of Zustek, is now the CEO of Zeta Interactive.
Zustek was acquired last month by private equity firm Investcorp Technology Partners.