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flag Koster Communications expands to California to serve tech startups with AI-driven marketing and PR.

flag Koster Communications, a Florida-based marketing agency founded by Eva Koester and Joerg Ploetzner, has expanded into California to strengthen its U.S. and European presence, targeting tech startups and innovation hubs. flag The move underscores growing demand for AI-powered digital marketing, brand positioning, and public relations services across industries like technology, wellness, hospitality, and e-commerce. flag The agency combines European precision with American creativity, using data-driven strategies to deliver measurable results. flag CEO Eva Koester highlighted the company’s focus on innovation, authenticity, and client success in a rapidly evolving digital landscape.

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