Harrison LLP Relocates to Expanded Frontenac Office to Support Continued Growth in St. Louis Market
Chicago, December 19, 2025—Harrison LLP, a national private wealth law firm specializing in estate planning, trust administration, business succession planning, charitable guidance, and international planning for high-net-worth individuals and their families, announced today its move to a larger office at 10401 Clayton Road in Frontenac, a suburb of St. Louis.
The move emphasizes the firm's continuous growth and commitment to providing an enhanced client experience with a larger 11,500-square-foot space to accommodate the firm's private client team of 35 attorneys and staff.
"We've nearly tripled our St. Louis team in just three years, which mirrors our growth nationally. This move finally puts our entire St. Louis team under one roof, which boosts culture, training and collaboration amongst the team,” said managing partner Matthew Madsen. “The decision on location was driven by our clients who want a central location that's easy to get to, and that has simple parking. Legacy planning involves complex and deeply personal conversations, so we designed every meeting space to ensure privacy and comfort.”
Occupying the entire second floor, the office includes an atrium, state-of-the-art conference rooms, and a modern twist on a speakeasy for employee and client events. Gray Design Group, a local architecture firm, meticulously planned the space in partnership with Harrison partners Steve Dawson and Jennifer Ruane Lynn.
The recent expansion of the St. Louis team is part of a larger growth story for Harrison, which opened its twelfth office in August in the San Francisco Bay Area, establishing a coast-to-coast presence in private wealth law.
The firm began operations at its new location on December 1, 2025. All phone numbers and email addresses remain unchanged.
About Harrison LLP
Harrison LLP is a national law firm that assists clients in defining and achieving their private wealth goals, delivering peace of mind through sophisticated and practical legal counsel. The firm stands at the forefront of estate planning, distinguished as one of the nation’s premier trusts and estates firms. With over 100 attorneys across 12 offices, including Atlanta, Boulder, Chicago, Denver, Las Vegas, Naples, St. Louis, and Washington D.C., Harrison advises fiduciaries, families, and family offices on estate planning, tax, succession planning, and fiduciary litigation. Founded in 2003 in Chicago, the firm is consistently recognized among the nation’s top private wealth law practices.
