Justin Londergan

Justin leads Ardea’s Retirement Plan Consulting strategy. Justin's experience with institutional retirement plans centers around the implementation of fiduciary best practices that seek to minimize risk, reduce employer and employee costs and drive positive retirement outcomes. Justin has experience with 401(k) clients from start-ups to mid-size corporations, and 403(b) clients in higher education, independent schools, and other nonprofits.

In recognition of his work with Ardea’s clients, Justin was named 2025 PLANADVISER Retirement Plan Adviser of the Year, 403(b) Plan Service*. He assists clients with all aspects of fiduciary governance and has experience working with leading vendors in the 401(k) and 403(b) markets. He is an advocate for transparency, mitigating plan fees and streamlining the client experience. Justin also sits on the PLANADVISER Advisory Board**.

Prior to founding Ardea Fiduciary Advisors, Justin was a Vice President at Mayflower Advisors in Boston, MA. Before Mayflower, Justin was a retirement plan consultant at LPL Financial. Justin earned a B.A. from Hobart College.

*The PLANADVISER Retirement Plan Adviser of the Year finalists and winners demonstrate leadership and a commitment to excellence in serving retirement plan sponsors and participants and contributing to the retirement plan adviser industry. Nominees are judged on a mixture of qualitative and quantitative measures, including tenure in the business; retirement plan business as a percentage of practice revenue; answers to essay questions; compliance records; and willingness to serve in a fiduciary role to clients’ plans. Finalists are interviewed by judges before a winner is selected. In 2025 there were 54 applicants and 28 finalists. No fee is charged to participate. The rating is not indicative of the Advisor’s future performance

**The PLANADVISER Advisory Board is a volunteer position; participants receive no monetary compensation for duties or responsibilities associated with this position.