Sissy Theofanopoulou

Sissy Theofanopoulou is a highly accomplished and multisided marketing professional with more than 23 years of experience leading transformation across B2B and B2C markets. With deep expertise in omnichannel marketing, digital strategy, commercialization, ESG, and creative storytelling, Sissy is known for revitalizing traditional brands through innovation, data-driven decision-making, and authentic engagement.

Throughout her career at industry leaders such as 3M, Mattel, and D. Contominas Group, she has orchestrated marketing transformations that successfully bridged offline legacy strategies with modern digital channels. She had also P&L ownership for the brands under her responsibility.  At 3M, she spearheaded the digitalization of iconic 3M corporate and consumer brands across Southeast Europe, delivering measurable growth through integrated campaigns, marketing automation, and customer-centric experiences.

Sissy has consistently been at the forefront of omnichannel strategy, blending digital platforms with retail, print, and broadcast to create seamless brand narratives. Her work has earned 10 prestigious marketing awards, reflecting her ability to craft campaigns that not only perform, but also inspire. She has also served as a panel speaker alongside Philip Kotler at the “Future of Marketing” Congress in 2021 and a marketing instructor at the Communication Institute of Greece.

She is also an ESG advocate who has led sustainability-focused branding initiatives, enhanced corporate reputation and aligned brands with modern consumer values. A skilled copywriter and the author of six published books with Livanis Publications, she brings unique creative depth to every marketing initiative.

Her hybrid strength—strategic rigor combined with business acumen and creative intuition—makes her a standout talent in today’s ever-evolving marketing landscape. Whether developing a digital roadmap, coaching teams, or enhancing brand’s voice, Sissy Theofanopoulou leads with vision, passion, and purpose.