Erich Tengelsen is a former derivatives trader and co-CEO who scaled Chicago Trading Company from 8 to 325 people before founding Ridgeline Ventures, a single-family office that invests his own capital without the typical 10-year fund timeline constraints. His background combines Wall Street risk management expertise with hands-on board roles at outdoor and active-lifestyle brands, while his personal passion for endurance sports like skiing and triathlons aligns with Ridgeline's focus on healthier, more active consumer companies.