We help businesses become visible where customers now make decisions: AI.

Dennis has spent more than two decades helping businesses grow through technology, digital marketing, and ecommerce.

His career spans consulting, entrepreneurship, SaaS, and executive leadership, giving him experience across nearly every stage of the digital customer journey, from enterprise technology to international ecommerce organizations.

His expertise covers technical infrastructure, SEO, content strategy, performance marketing, influencer marketing, social commerce, and AI-powered marketing.

As Co-founder and CEO of Fourstarzz Media, Dennis built an international influencer marketing agency and SaaS platform that helped brands scale creator marketing worldwide. Gartner later included the platform in its Marketing Technology Vendor Guide.

Since 2018, Dennis has been a member of the Forbes Agency Council, where he regularly writes about digital marketing, SEO, social commerce, influencer marketing, and the business impact of emerging technologies.

Most recently, he served as President North America at Spread Group, leading the company’s North American ecommerce business and driving growth across marketing, ecommerce, and platform strategy.

Earlier in his career, he led international operations across the DACH and EMEA regions at Groupon during one of the fastest growth periods in digital commerce.

Dennis began his career at Accenture, where he spent more than a decade leading international transformation, systems integration, and digital transformation programs for global companies in telecommunications, media, technology, and aviation.

Today, he combines that experience with Generative Engine Optimization (GEO), helping businesses become not only discoverable but recommended and cited by AI systems including ChatGPT, Gemini, Claude, and Perplexity.

Dennis on LinkedIn →

For more than 15 years, Thomas has focused on one question: how do businesses stay visible as digital markets evolve?

His career combines ecommerce, performance marketing, partnerships, brand strategy, and business development.

After leadership roles at Spread Group, Thomas advised businesses, agencies, creators, and artists on brand positioning, audience growth, and long-term monetization strategies.

Today, his work focuses on the next evolution of digital visibility: helping businesses stay relevant as customers increasingly rely on AI systems instead of traditional search engines.

Thomas combines strategic marketing thinking with practical experience building brands, partnerships, and digital business models. He cuts through industry hype, questions assumptions, and helps businesses understand what technological change actually means for their growth.

As Co-founder and CMO of auffindbar.ai, he helps organizations structure and communicate their expertise so that both people and AI systems recognize it as credible, relevant, and worth citing.

Thomas also mentors startups in marketing and business model development at SpinLab – The HHL Accelerator in Leipzig and hosts his own interview series, Business with a Smile, featuring leaders from the marketing and media industries.

Thomas on LinkedIn →