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Plante Moran celebrates 100th anniversary

January 22, 2024 Press Release 2 min read
Firm launches centennial celebration with a nod to the clients and staff who have counted on them for more than a century.
Plante Moran centennial celebration image, reading "100 years, Count on us".Southfield, Mich., Jan. 22, 2024 — On Saturday, January 20, Plante Moran celebrated 100 years in business, a milestone few organizations reach. Since its founding in 1924, the firm has grown from a sole accounting practitioner in a Detroit office to a billion-dollar audit, tax, consulting and wealth management firm with more than 3,800 professionals serving clients around the globe.

When asked the secret to the firm’s success, Managing Partner Jim Proppe can answer the question with one word: culture.

“Plante Moran’s unique culture is rooted in what Elorion Plante and Frank Moran called their ‘grand experiment,’” Proppe explained. “They envisioned an accounting firm where the best practitioners couldn’t wait to get in the door and clients were lining up to receive unsurpassed service. To achieve this, they built our firm on a solid foundation of principles and values like following the Golden Rule, doing the right thing for the right reasons and putting people and a long-term view before profits. A century later, our firm still operates under these same philosophies. It’s been the key to our success for 100 years, and I have no doubt it’s what will help us succeed for 100-plus more.”

To kick off its centennial celebration, Plante Moran has launched a campaign titled “Count on Us,” a nod to the clients and staff who have counted on the firm since its inception. Over the next year, you’ll find stories of how the firm has served clients and supported one another on Plante Moran’s website, social media pages, advertisements and more.

“We’re a people firm,” said Proppe. “And throughout this next year, we’re going to be intentional about celebrating the clients and staff who have made our success possible. From businesses we had the opportunity to help build to clients we were able to support through challenging times, there’s a lot to be proud of and even more to be thankful for.”

As Plante Moran begins its 100th year in business, it will continue to focus on client service, innovation and building a strong pipeline of talent. But most importantly, the firm will stay true to its values, principles and “We Care” culture.

“When asked about the firm’s success, Frank Moran once said, ‘Elorion Plante and I made a little snowball and got a lot of wonderful people to help roll it. Today, that snowball looks pretty good.’” Proppe shared. “I can’t help but think Elorion and Frank would be excited about what that snowball looks like today and the incredible impact their grand experiment has had on so many people.”


About Plante Moran

Plante Moran is among the nation’s largest audit, tax, consulting and wealth management firms and provides a full line of services to organizations in the following industries: manufacturing and distribution, financial services, service, healthcare, private equity, public sector, real estate, construction and energy. Throughout the firm’s 100 years in business, Plante Moran has grown to a staff of more than 3,800 professionals throughout the United States with international offices in Shanghai, China; Mumbai, India; Tokyo, Japan; and Monterrey, Mexico. Plante Moran has been recognized by a number of organizations, including Fortune magazine, as one of the country’s best places to work. For more information, visit  

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