TDJ is a Katowice-based Polish family investment firm and family office that deploys its own capital across Equity, Growth, Capital Markets and Philanthropy. The firm backs mature companies and scaling technology startups, with activity spanning finance, real estate, technology, manufacturing, industrial technology, cleantech, climate, automation, AI, energy, logistics, food and beverage, retail, pets, education and impact. It supports portfolio companies through business-excellence teams focused on sustainable development, process optimization and value creation.