Jeffrey H. Thomasson built one of the Midwest’s most respected wealth management firms from the ground up. As founder, CEO, and Managing Director of Oxford Financial Group, Ltd., he has spent more than four decades helping high-net-worth families and institutions protect and grow their money. People searching for “Jeffrey Thomasson net worth” usually want a clear number. The truth is that no official public figure exists because Oxford is a private firm. Still, recent events and the size of the business give a solid picture of his financial standing.
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Who Is Jeffrey Thomasson?
Jeffrey Thomasson earned his MBA from Indiana University’s Kelley School of Business in 1981 at age 23. He specialized in investments and taxation and immediately founded what became Oxford Financial Group. The firm started as a fee-only advisory practice—an uncommon model at the time—and focused on objective advice rather than commissions.
Today Oxford serves hundreds of families and institutions across dozens of states. It operates as a multi-family office with deep expertise in alternative investments, private equity, and multi-generational planning. Thomasson holds the CFP designation and remains actively involved in the firm’s direction. He and his wife Benita have long ties to Indiana education and philanthropy.
Jeffrey Thomasson Net Worth Estimate in 2026
Exact personal net worth figures for private business owners are rarely disclosed. Estimates based on firm scale, ownership, and public giving place Jeffrey Thomasson’s wealth in the hundreds of millions of dollars.
Key indicators include:
- Oxford Financial Group’s assets under management reached approximately $23.3 billion as of recent regulatory filings.
- The firm manages both discretionary and non-discretionary assets for high-net-worth clients and institutions.
- In September 2026 the couple donated $100 million to Indiana University—the largest individual gift in the school’s history—bringing their total support to more than $111 million.
A gift of that size, coming on top of decades of earlier philanthropy, signals substantial personal resources. Older public estimates already described his wealth in the hundreds of millions; the recent donation and continued firm growth support a higher range today. Indicator Details (2025–2026) Oxford AUM ~$23.3 billion Firm founding year 1981 Recent major gift $100 million to Indiana University Cumulative IU support Over $111 million Estimated personal net worth Hundreds of millions (private)
Sources of Wealth: Oxford Financial Group Success
Thomasson’s fortune is tied almost entirely to the growth of Oxford. He launched the firm right after graduate school and stuck with a fee-only model that prioritized client interests. Over time the company expanded into a full multi-family office with subsidiaries covering investment advisory, trust services, and charitable planning.
Clients typically include owners of private businesses, senior executives, and families with inherited or newly created wealth. The firm’s emphasis on alternative investments and customized strategies helped it scale. Recent rankings have placed Oxford among top U.S. wealth advisors serving ultra-high-net-worth clients. Revenue and AUM growth over four decades form the core of Thomasson’s personal wealth.
Philanthropy and Recent Milestones
In mid-September 2026, Indiana University announced that Jeffrey and Benita Thomasson had committed $100 million. The bulk supports the Kelley School of Business graduate programs; $5 million strengthens scholarships at the Lilly Family School of Philanthropy. In recognition, the university named the graduate division the Jeffrey H. Thomasson Graduate School of Business.
This gift is the latest chapter in long-term giving. The couple has supported scholarships for missionary children, local high-school seniors, cultural institutions in Indianapolis, and earlier Kelley initiatives. Their approach reflects a consistent belief that education and philanthropy create lasting impact.
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Conclusion
Jeffrey Thomasson’s net worth in 2026 reflects a lifetime of building a trusted independent advisory firm and a parallel commitment to giving back. While no single public number is available, the combination of $23-plus billion in firm assets under management and a record $100 million university gift points to substantial personal wealth measured in the hundreds of millions. His story remains less about a headline figure and more about steady, client-focused growth and purposeful philanthropy that continues to shape education in Indiana.