Sofia Popovidou

My name is Sofia Popovidou. I am a co-founder of Partyfer and a marketing and brand strategy professional with over 12 years of experience in PR, digital marketing, and the events industry.

I also serve as Head of Brand Marketing at Adsterra, a global advertising network, where I lead brand strategy, positioning, communications, and global brand growth across multiple markets. My background combines hands-on experience in adtech, international marketing, and building brands in highly competitive digital environments.

Over the years, I have worked with international teams and brands, delivered large-scale projects across 20+ countries, and helped shape brand narratives that drive both awareness and measurable business results. My work sits at the intersection of brand, performance marketing, and product growth.
I regularly speak at digital marketing conferences and provide consulting, sharing practical, real-world insights on:

– building and scaling brands online;
– developing a strong personal brand for founders and experts;
– brand strategy for startups, and digital products;
the impact of social media on mental health;
– launching and scaling brands in international markets;
– positioning, storytelling, and communications that attract customers, partners, and investors.

My focus is on long-term brand value, strategic clarity, and actionable frameworks.