Who We Are
Meet the leadership and board members of the Trillium Foundation.
The Organization
Leadership
Maria Ledger
CEO, Trillium Foundation
Trillium Foundation CEO and Board Member Maria Ledger has a bachelor’s degree in psychology from Marquette University and a master’s degree in Rehabilitation Counseling from Southern Illinois University – Carbondale. She is a native Wisconsinite with two adult children and an irascible dog. Maria worked for Milwaukee County for over 15 years, for both the Department of Health and Human Services and the Department on Aging and served as the CEO of My Choice Wisconsin for 18 years.
Jim Hodson
CFO/COO, Trillium Foundation
Trillium Foundation CFO/COO Jim Hodson holds an MBA and a BS in Accounting from Marquette University. Jim is also a licensed Certified Public Accountant in Wisconsin. He has more than 25 years’ experience in long-term care and managed care, serving as the CFO for My Choice Wisconsin for 19 years. From 2000 to 2003, Jim served as the CEO for a global behavioral training company serving the education and health care industries with domestic and foreign operations in six countries. His experience extends beyond the for-profit and nonprofit sectors to public accounting where he was the Healthcare Advisory Services Partner for BDO Seidman, LLP’s Milwaukee Office, the sixth largest accounting firm in the US.
Melissa Mulcahy
Executive Assistant, Trillium Foundation
Melissa Mulcahy joined the Trillium Foundation in fall 2025 as an Executive Assistant, bringing over a decade of experience in administrative support, operations, and communications. In her role, she supports daily operations and applicant communications, helping ensure Trillium’s grantmaking process runs smoothly and efficiently.
The Board
Tom Orendorff
Board Chair Tom Orendorff is a graduate of the University of Illinois. He attended Graduate Officer Candidate School (OCS) and Special Warfare School, Special Forces. Tom served with the 2nd PsyOps Unit at Fort Bragg North Carolina and the 101st Airborne Division in Vietnam. He passed the CPA exam in California and started a CPA firm in 1980, which grew to 25 employees when sold. Tom retired in 2018 and now runs farms in Illinois.
Michael Mayo, Sr.
Board Member Michael Mayo, Sr. retired in 2018 from 25 years as County Board Supervisor for Milwaukee County’s 7th district. He is the proud father of three and even prouder grandfather of three. With a background in insurance, in his spare time he enjoys golfing, photography, dancing and travel.
Dr. Ken Byom
Board Member Dr. Ken Byom has over 20 years of experience as a Board-Certified Physician. Ten of those years he spent practicing Family Medicine and Weight Management as a partner with Lakeshore Medical Clinic and then with Aurora Medical Group in Wisconsin. He was formerly a Co-Medical Director of the Aurora Sinai Hospital Bariatric Institute in Milwaukee, Wisconsin and is currently Board Certified in Family Medicine.
Lee M. Seese
Board Member Lee M. Seese is a partner in the Milwaukee office of Michael Best & Friedrich, helping clients with business disputes and litigation for the past 25 years. Lee earned a Bachelor of Arts (BA) degree from the University of Wisconsin-Eau Claire, magna cum laude, in 1997, and a Juris Doctor (JD) from the University of Wisconsin Law School, cum laude, in 2000. When not at work, you can find Lee at local wrestling events cheering on his kids and their teammates, or at the golf course trying to lower his handicap.