Katherine Tuominen is the founder and CEO of Catalyst Brand Strategy, an award-winning international PR and communications agency for founders and brands in high-trust, regulated categories, with deep specialisation in health, wellness, and the longevity and care economy. She helps founders turn complex, science-led work into clear, credible positioning that earns media coverage, trust, strategic partnerships, and investor confidence.
Featured in Forbes, Katherine has built the agency behind 80+ brand partnerships across 15 sectors and 7 countries, backed by 200+ media relationships spanning Forbes, USA Today, Fast Company, Good Housekeeping, and TED. Her work pairs narrative with commercial outcomes: 400%+ ROAS on paid PR, a seven-figure partnership generated from a single TED-Ed feature that scaled to national broadcast reaching 120M+ US homes, and a #1 Amazon bestseller launch for a founder client.
She works through a governance-first, ethical approach built for categories where every claim is scrutinised, advises founders directly, and convenes her own senior advisory board. She is a keynote speaker on “Ethical Marketing Is Not An Oxymoron,” has hosted lunch-and-learns at women’s events, and has guest-hosted 50+ podcasts.
