ST. LOUIS — Burns & McDonnell, a 100% employee-owned engineering, architecture and construction firm, announces two promotions to help lead the firm’s Midwest offices in St. Louis and Ohio into the future. Adam Matthiesen, PE, will serve as the office’s director of operations, and Alexandra Wiesehan, PE, will lead the region’s Transmission & Distribution Group. The firm’s presence across the region continues to grow and create new opportunities to support clients with innovative and cost-effective architecture, engineering and construction solutions.

“Adam has been a remarkable addition to our office the past few years, and with his deep project, construction and people leadership experience, we expect him to continue to elevate our offices in St. Louis and Ohio,” says Breck Washam, PE, senior vice president and general manager for the Midwest region offices. “Alexandra’s impact within the Transmission & Distribution Group and our office cannot be overstated; She is a difference-maker and will lead the team in continuing to focus on safety and our clients’ success.”

Since joining Burns & McDonnell in 2009 in the Houston office, Matthiesen has worked primarily with power transmission and distribution clients. Matthiesen relocated to St. Louis in 2021 to lead the Transmission & Distribution Group in the Midwest region, where he grew the department by 50% and expanded the client base throughout the Midwest.

“My core focus will continue to be making our clients successful and supporting our amazing group of employee-owners in St. Louis, Columbus and Akron,” Matthiesen says. “I look forward to elevating our construction teams and keeping a critical spotlight on safety during every phase of project execution.”

Joining the firm in 2006, Wiesehan has evolved her skill set to support electric utilities in various ways, from designing air pollution control equipment for coal-fired generation plants to leading teams that support cybersecurity, NERC compliance needs and electric substation design. In 2021, she was promoted to the Midwest region’s Transmission & Distribution Group operations manager role to lead teams across multiple offices.

“I have always had a passion for helping others succeed, and Burns & McDonnell has allowed me to support an amazing group of people and empower them to make our clients successful,” Wiesehan says. “I look forward to continuing to invest in our team with a focus on partnering with our clients to safely and efficiently meet their needs.”

As Burns & McDonnell continues to expand service offerings across the region, career opportunities are increasing to meet demand in the St. Louis and Ohio offices.

About Burns & McDonnell

Burns & McDonnell is a family of companies bringing together an unmatched team of more than 14,000 engineers, construction and craft professionals, architects, planners, technologists, and scientists to design and build our critical infrastructure. With an integrated construction and design mindset, we offer full-service capabilities. Founded in 1898 and working from 75+ offices globally, Burns & McDonnell is 100% employee-owned. Learn how we are designed to build.