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The O’Connell Companies today announced that President James “Jim” Sullivan will retire from his role effective June 1, 2026, concluding a distinguished 44-year career with the organization. Chief Financial Officer Joe McMahon has been appointed President and will continue to serve as CFO.

Sullivan joined The O’Connell Companies in 1982 and has played a central role in the organization’s growth and evolution. He was named President in 2019 and has overseen the strategic direction and operations of the company and its subsidiaries, including its construction, real estate development, and property management divisions.

Over the course of his tenure, Sullivan held several key leadership roles, including President of O’Connell Development Group and General Manager of NEFCO. His leadership spanned significant milestones in the company’s history, including large-scale project execution, ownership transition, and long-term strategic planning.

“Jim’s contributions to The O’Connell Companies are substantial,” the board said in a statement. “His leadership has guided the organization through periods of growth, challenge, and transition, while reinforcing a culture grounded in integrity, trust, and accountability.”

Sullivan will remain actively involved with the company as Chair of the Board of Directors, supporting long-term strategy and ensuring continuity in leadership and governance.

During the transition announcement, Jim shared, “Joe will become our 8th parent company president in our 147-year history, following in the footsteps laid by our founder Daniel O’Connell, his sons Daniel, and Charles, his grandson Daniel, then Bob Mahar, Dennis Fitzpatrick, and me. We are fortunate to have someone with the talent, knowledge, vision, experience, and values that Joe has, leading our company. Joe will continue in his role as CFO while also now becoming our President. I have full confidence that under Joe’s leadership, our best days lie ahead.”

A native of Holyoke, Joe has more than 25 years of experience in a broad range of industries in the Boston and Western MA markets. As CFO, he leads the company’s financial strategy and governance, with experience in acquisitions, mergers, and organizational restructuring.

“I’m honored to step into this role and build on what this team has accomplished. We’ve created a strong foundation, a great culture, and a group of people who care deeply about their work. My focus is on supporting our team and positioning the company for its next chapter of growth,” said McMahon.

A Certified Public Accountant and graduate of Bentley University, McMahon has worked with privately held, venture-backed, and family-owned businesses. His appointment reflects a planned leadership transition and the company’s focus on continuity and future growth.

To learn more about The O’Connell Companies, visit: theoconnellcompanies.com/about-us