Addepar | 53,916 followers on LinkedIn. Addepar is a global tech and data company that helps investment professionals provide better guidance for their clients. | Addepar is a global technology and data company that helps investment professionals provide the most informed, precise guidance for their clients. Hundreds of thousands of users have entrusted Addepar to empower smarter investment decisions and better advice over the last decade. With client presence in more than 50 countries, Addepar's platform aggregates portfolio, market and client data for over $7 trillion in assets.