South Portland employee-owned engineering and design firm Sebago Technics promoted Kylie Mason to president and COO.
Mason succeeds Mark Adams, president and CEO since 2011. Adams will continue as CEO.
The promotion is the result of years of succession planning, according to a news release.
Mason has been with the firm for more than 20 years and has been instrumental to the company’s growth and culture. As the company expands its client base and services, the transition provides stability and added leadership capacity as the company continues to grow.
“Kylie’s leadership has been transformative for our organization,” said Adams, who cited her “vision for growth, combined with her deep understanding of our clients’ needs and our employee-ownership culture.”
Mason said the appointment reflects years of shared work.
“Together, we’ve built a strong foundation, delivering great work for great clients,” she said.
Mason will focus on operations, project delivery, staff and leadership development, resource allocation and strategic planning. Adams will focus on governance, stakeholder relations, enterprise performance, sustainability and supporting Sebago’s ownership culture.
The announcement follows Sebago’s recent acquisition of Lincoln/Haney Engineering Associates in Brunswick, which expanded the firm’s engineering capabilities to include structural engineering and strengthened its presence in midcoast Maine.
Sebago Technics ranks No. 7 among Maine’s largest engineering firms, according to the 2026 Mainebiz Book of Lists. At the time the firm was surveyed for the list, it had 21 licensed engineers in Maine, 135 Maine employees and 2024 revenue of $17 million.
Founded in 1981 and headquartered at 75 John Roberts Road, South Portland, Sebago’s additional offices are in Sanford, Bridgton and Brunswick, serving public and private sector clients throughout Maine and northern New England. Services include civil engineering, landscape architecture, surveying, planning, transportation, environmental services and now structural engineering.
The company reached 100% employee-ownership in 2007.
