Aaron Klein is a prominent figure in the financial technology sector, known for co-founding and leading Riskalyze, which has recently rebranded to Nitrogen. He served as the CEO of Riskalyze from its inception in 2011 until May 2023, when he transitioned to the role of CEO at Nitrogen. Under his leadership, the company experienced significant growth, serving tens of thousands of financial advisors and being recognized as one of the most innovative companies in finance by Fast Company Magazine.

Klein's journey began with Riskalyze, a platform designed to help financial advisors assess and document client risk tolerance. Over the years, the company expanded its offerings to include various tools for wealth management, raising over $50 million for research and development. In 2023, Klein stepped down as CEO to allow for new leadership aimed at scaling the company further, while he remains on the board as the largest individual shareholder.134

In addition to his professional achievements, Klein is actively involved in philanthropic efforts, co-founding Hope Takes Root, an initiative focused on improving the lives of orphans and at-risk children in Ethiopia. He lives in Eagle, Idaho, with his wife Cacey and their three adopted children.12 Klein has been recognized as one of the top 40 executives under 40 in the wealth management industry, receiving accolades such as the CEO of the Year award in 2023 from WealthManagement.com.123