Founders Force

Stefan Langefeld is a seasoned entrepreneur and investor with deep expertise in platform economies, digital entertainment, and Web3 technologies. With leadership experience spanning corporates, scale-ups, and startups in international environments, Stefan brings a wealth of knowledge in building sustainable business models and navigating the complexities of emerging technologies. His "supportive leadership" approach focuses on enabling teams to thrive through clear goals, adequate resources, and personalized guidance—making him an invaluable asset for founders looking to scale their ventures.
As an active mentor with Intel Ignite, APX, and Plug and Play Munich, Stefan specializes in helping early-stage tech founders refine their business strategies, secure funding, and build robust operational foundations. His experience in early-stage investments across Media, Entertainment, FinTech, EdTech, and platform businesses provides him with unique insights into market trends and opportunities. Tech founders can particularly benefit from Stefan's ability to identify scalable business models, his extensive international network, and his practical approach to translating innovative ideas into viable commercial ventures.

Gyri Reiersen is the co-founder and Chief Product Officer of Tanso, a Munich-based startup helping industrial companies measure and reduce carbon emissions through automated software solutions. A former innovation consultant at Fraunhofer and a Davos50 Global Shaper, Gyri brings a systems-level mindset to solving one of the planet’s most urgent challenges.

With a background in engineering from TUM and ETH Zurich and experience as an investment analyst, Gyri is uniquely positioned to advise startups balancing climate impact with scalable SaaS models. At Tanso, she led product strategy from zero to market traction, helping unlock value in one of the toughest customer segments: traditional industry.

Gyri serves as a highly selective advisor to clean tech and ESG-focused startups, especially those working with complex B2B dynamics. Her input is especially valued in aligning product, mission, and market fit.

Ondřej Dusek is a distinguished business leader and entrepreneur based in San Francisco, California, with extensive experience in management consulting and startup ecosystem development. After spending over a decade at McKinsey & Company, where he served as a Partner focusing on digital transformation and technology strategies across Europe, Ondřej embarked on his entrepreneurial journey to make a more direct impact on the European startup landscape.

Currently, Ondřej is dedicated to building his own startup while actively supporting the growth of European technology companies. Drawing from his deep consulting expertise and network, he serves as an advisor and mentor to numerous startups, helping them navigate scaling challenges and international expansion. His commitment to strengthening the European startup ecosystem is evident through his involvement in various initiatives aimed at bridging the gap between Eastern and Western European tech markets.

Peter Horník is a prominent Slovak entrepreneur and founder of FHB Group s.r.o., a leading order fulfillment company specializing in European Union e-commerce logistics. Under his leadership, FHB Group has built an extensive network of warehouses and logistics centers across multiple European countries including Czech Republic, Poland, Hungary, Romania, and Germany. The company provides comprehensive e-commerce logistics solutions, including warehousing, pick and pack services, and international parcel delivery, serving clients from various global markets including Germany, UK, Russia, China, USA, and Brazil. Leveraging Bratislava's strategic location, Horník has established FHB Group as a key player in the EU's e-commerce fulfillment sector, facilitating cross-border trade through efficient direct line hauls and integrated logistics services.

Artem is a seasoned entrepreneur and innovator in the field of call center technologies and AI automation. His expertise in customer service solutions and voice recognition technology was showcased during his time at Vocalls, which was later acquired by Callminer. At Vocalls, he focused on developing innovative AI-powered solutions for customer service operations and call center automation.
Prior to the Callminer acquisition, Markevich demonstrated his entrepreneurial acumen by building Vocalls into a pioneering force in call center technology. The company established itself as a key player in developing voice-enabled solutions and customer service automation tools, leveraging artificial intelligence to enhance operational efficiency in contact centers. His work helped bridge the gap between traditional call center operations and modern AI-driven customer service solutions.

Sabrina Guelck is the founder of Undiced, a next-gen web publishing platform reimagining how stories, culture, and creators connect with audiences. Rooted in both journalism and product innovation, Undiced offers tools that democratize storytelling while preserving editorial quality and brand integrity.

Before founding Undiced, Sabrina held leadership roles in communications and brand development, giving her a strategic edge in navigating the fast-changing media landscape. She is known for her sharp instinct for what resonates — whether in content, partnerships, or platform design.

Today, she mentors early-stage founders — particularly those in consumer tech, media, and brand-heavy industries — on storytelling, positioning, and PR that drives growth. Her guidance is sought-after by those aiming to punch above their weight in early traction and visibility.

Merce Tell is a seasoned venture capital professional with over two decades of experience in investment management and strategic growth initiatives. As General Partner & COO at Encomenda Capital Partners, she leverages her extensive background in fundraising, deal negotiation, and portfolio management to identify and nurture innovative technological companies in their early stages. Her expertise spans multiple industries including E-commerce, B2B, B2C, and AI, with particular strengths in corporate governance, cap table management, and venture building.

Throughout her career across firms like Nekko Capital, Avet Ventures, and Highgrowth Partners, Merce has demonstrated exceptional ability in driving value creation for portfolio companies while maintaining regulatory compliance and investor relations. Her experience as an Expert Evaluator for the European Commission and her long-standing board position at Mutua de Propietarios further underscore her comprehensive understanding of both technological innovation and traditional business models. Committed to fostering entrepreneurial talent, Merce continues to shape the European venture capital landscape through her highly selective approach to investment assessment, consultation, and mentoring.

Alexandra is the visionary founder and CEO of Profimed, a leading Central European premium wellness company. What started in 1997 as a small stall at dental congresses quickly evolved under Alexandra’s leadership into a multi-country retail network distributing top-tier oral hygiene brands like TePe, Curaprox, Sonicare—and later boutique wellness and longevity products across the Czech Republic, Slovakia, Hungary, Poland, and beyond.

More than just a retailer, Alexandra has strategically positioned Profimed at the intersection of lifestyle, health, and trust. She extended her brand’s mission to include postpartum care and nutritional supplements, reflecting her belief that personal wellness is lifelong and multifaceted. This trust-first approach, honed over decades, resonates deeply with modern consumers who value transparency and curation.

Alexandra’s ambitions go far beyond commerce. She has embedded science and public good into the core of her professional identity—through partnerships with the prestigious Neuron Foundation (board member since 2021), championing university-endowed “science chairs,” and spearheading tech incubators aimed at commercializing Czech research  . She is also co-founder of Nadace Žárovky, empowering young professionals in civic engagement. As an ambassador for the National Theatre’s CHAIRity initiative, she bridges culture, business, and community, consistently advocating for philanthropy in entrepreneurial success  .

Her efforts have earned her significant recognition: she was named EY Entrepreneur of the Year for the Central Bohemian region in 2017 and took 2nd place in the Forbes/HN “Top Women of Czechia” rankings in 2022. She’s also consistently featured among the most influential Czech women

Eduardo A. Castaneda is a seasoned digital marketing executive and startup advisor currently serving as Head of Digital Marketing for DACH & Central Europe at Boston Consulting Group (BCG). With extensive experience in the European startup ecosystem, he holds multiple advisory roles including Venture Growth Advisor positions at Czech Founders VC and HEARTFELT. His career spans leadership positions at major companies like Delivery Hero, where he served as Global Head of Content Marketing, and his entrepreneurial ventures include being a Co-Founder at GerneOhne.
As an Angel Investor through Dimestore Saints, Eduardo focuses on helping pre-seed and seed startups achieve rapid and sustainable growth through expert guidance on go-to-market strategies, B2B/B2C marketing, and internationalization. His expertise has been recognized in the industry, leading to speaking engagements at events like the Digital Marketing World Forum.

Jiri Pavlicek is a healthcare industry executive and entrepreneur with extensive experience in biotech and health tech. As the founder of Aspironix and former director at Johnson & Johnson, he specializes in strategic planning, operations, and medical device and healthcare leadership.
He founded IntMeDA, an association of medical device distributors, and serves as chairman of the Czechmed Medical Device Association. His expertise in both corporate healthcare and entrepreneurship makes him valuable for investment assessment and strategic planning in healthcare ventures.