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About Us

Jack Braun founded Braun Intertec out of his house almost sixty years ago and the company has grown to more than 1,000 employee-owners, 30 offices, and nine major service areas, including geotechnical engineering, environmental consulting, construction materials testing, nondestructive examination and more. Our leaders provide guidance and strategic direction to sustain revenue growth and ongoing career opportunities for our employee-owners. Leadership is also focused on building trust-based relationships with our clients to deliver quality services and enhance the communities in which we live and work.

Senior Leadership Team

Jon A. Carlson, PG, CHMM
Robert J. Janssen, PE

Robert J. Janssen, PE

President, Principal Engineer

As President and Principal Engineer, Bob Janssen supervises project teams and reviews geotechnical and construction reports. Bob oversees the engineering and testing services for national retail clients and projects. He has led more than 400 national retail store and 25 major distribution center projects located throughout the United States. He reviews engineering reports, performs peer reviews of other consultants, manages construction quality control, and provides consultation for particularly complex projects. Bob holds a Bachelor of Science degree in geological engineering from the University of Minnesota.

Daniel R. Holte, PG
John McCormick

John McCormick

Chief Operating Officer

John McCormick joined Braun Intertec in 2016 and serves as Chief Operating Officer. As a seasoned C-level business executive, John brings over 30 years of broad operations and financial experience. In particular, John has an extensive background with growing employee-owned companies. Prior to joining Braun Intertec, John led operations and financial teams at companies within the service, technology and manufacturing industries. His organizational experience ranges from start-ups to large mid-cap organizations. John began his career at Arthur Andersen & Co. He is a certified public accountant (inactive) and received the notable Elijah Watt Sells award. John earned a Bachelor of Science degree in accounting from the University of Wisconsin – Stevens Point and completed the Minnesota Executive Program at the Carlson School of Management at the University of Minnesota. John is a board member for Realityworks and Kreg Tool, both ESOP companies. He also serves on the boards of Bolder Options and the Pinkyswear Foundation. John formerly was a board member of Employee S Corporations of America (ESCA). John is active in the philanthropic community and volunteers as an adaptive downhill ski instructor for skiers with physical and cognitive disabilities.

Nic S. Andreani, PE
Scott K. Beadleston

Scott K. Beadleston

Senior Vice President

Scott Beadleston joined Braun Intertec in 2015 and currently serves as Senior Vice President and Corporate Officer. Scott leads our account management and client experience team which focuses on providing exceptional service to our clients and is also on the Braun Intertec Board of Directors. As a principal scientist, Scott provides programmatic client service management and technical excellence to clients and projects throughout the United States. Prior to joining Braun Intertec, Scott worked for two ENR top 50 design firms; and has held roles in project management, operations management and national account management. Scott holds a Bachelor of Science degree from Baker University; and a Master of Science degree in engineering management from the University of Kansas, School of Engineering.

Carmen M. Borgeson, MBA
Michael L. Bratrud, PG

Michael L. Bratrud, PG

Senior Vice President

Mike Bratrud is Senior Vice President and Corporate Officer at Braun Intertec. As the leader of our technical services team, Mike currently oversees our building and structure sciences, drilling, geospatial operations, materials laboratory and nondestructive examination services. Mike also serves as a chair of the Employee Stock Ownership Plan Advisory Committee where he is involved in promoting an employee ownership culture within Braun Intertec. He is well respected in the industry and viewed as a role model by his staff because of his technical proficiency and ability to engage and inspire others. Mike received a Bachelor of Arts degree in geology from Gustavus Adolphus College and completed graduate coursework in geology at the University of Minnesota in Duluth. He joined Braun Intertec in 1998.

Jennifer A. Clayson Kraus
Timothy S. Lenway, MPH

Timothy S. Lenway, MPH

Senior Vice President

Tim serves as Senior Vice President and Corporate Officer at Braun Intertec. Tim leads the environmental consulting team for our upper Midwest region, which includes our operations in Minnesota, North Dakota and Wisconsin, and also serves on the Braun Intertec Board of Directors. His primary practice area is within brownfield redevelopment and he has extensive experience obtaining environmental investigation and cleanup grants that are available through a variety of public funding sources. Tim holds a Bachelor of Science degree in environmental science and urban planning from Minnesota State University, Mankato, and a Master of Public Health degree in environmental health sciences from the University of Minnesota, Twin Cities. He is currently enrolled in the executive education program at the University of St. Thomas Opus School of Business.

Sean S. Swartz, PE
Ryan J. Venable

Ryan J. Venable

Senior Vice President

Ryan Venable serves as Senior Vice President and Corporate Officer at Braun Intertec. He leads the engineering and testing division for our South Central region, including Iowa, Kansas/Missouri, Louisiana and Texas. Ryan has nearly 20 years of diverse management experience ranging from operations to business development and marketing to project administration. He has previously held the position of chief operations officer for a regional consulting firm, director for a national engineering and consulting firm and principal of an international consulting firm, where he managed various U.S. operations including directing multiple departments and a significant service division. He is experienced with large commercial and civil construction projects and is well-versed in the oil and gas industry, having established relationships with executives globally. Ryan holds a Bachelor of Science degree in Business Administration from the University of Louisiana at Lafayette. In addition, he is active in several trade associations including the American Society of Civil Engineers, the Construction Specifications Institute and the Institute for Supply Management.

Vice Presidents

David B. Bomersine
Charles R. Brenner, PE, LEED AP

Charles R. Brenner, PE, LEED AP

Vice President

Charles Brenner is Vice President and a Principal Materials Engineer within our Building and Structure Sciences group at Braun Intertec. He has extensive training and experience with construction issues related to building envelopes, pavements, landfills and industrial plants. He has consulted with clients and the Federal Emergency Management Agency (FEMA) on major flood recoveries. Charles performs property condition assessments, investigates failures and prepares recommendations for historic building restorations. He assesses water damage and mold issues in buildings, and oversees repair plans. Charles holds a Bachelor of Science degree in civil engineering from the University of Wisconsin-Platteville.

Charles M. Cadenhead, PE
Marvin C. Denne

Marvin C. Denne

Vice President

Marv Denne currently serves as Vice President and also manages the Nondestructive Examination Services (NDE) group. Marv has more than 35 years of NDE experience during his tenure at Braun Intertec. He has been instrumental in building one of the largest NDE practices in the upper midwest. He has been involved with thousands of projects for Braun Intertec clients, is an American Society for Nondestructive Testing (ASNT) National Level III, and has many other national certifications. He works with a number of clients in the refinery, power generation, manufacturing and fabrication markets. He is also a member of the company’s Employee Stock Ownership Program Retirement Plan Advisory Committee. Marv received his degree in nondestructive testing technology at Ridgewater College.

Jaclyn E. Dylla, CHMM
Greg W. Ebeling

Greg W. Ebeling

Vice President

Greg Ebeling currently serves as Vice President and Operations Manager for our Nondestructive Examination Services (NDE) group. Since joining Braun Intertec in 1991, he’s held many key responsibilities such as the coordination of the NDE department’s quality assurance/quality control program. Greg is heavily involved in business development opportunities for the NDE group and has helped to secure many high-profile projects over the years. He is a certified American Petroleum Institute (API) 570 Piping Inspector as well as an American Welding Society (AWS) Certified Welding Inspector. Greg received his Associate of Applied Science degree in Nondestructive Testing from Ridgewater College.

Jeffrey A. Gebhard, PE
Ken J. Haag

Ken J. Haag

Vice President

Ken Haag currently serves as Vice President and oversees operations of the Braun Intertec offices in southern Texas and North Dakota. Ken has more than 25 years of experience serving oil and gas clients throughout North Dakota. From gas plants and pipelines to load out facilities and more, Ken is a seasoned veteran in the industry for geotechnical engineering, drilling, testing, NDE and environmental services. His knowledge and expertise of the industry brings safety and solutions to his clients’ time and time again.

Michael M. Heuer, PE
Ray A. Huber, PE

Ray A. Huber, PE

Vice President, Principal Engineer

As Vice President and Principal Engineer, Ray Huber has more than 40 years of experience working in all sector groups such as industrial, office buildings, high-rise housing, housing subdivisions, and transportation. Ray has a Bachelor of Science degree in civil engineering from the University of Minnesota.

Gregg R. Jandro, PE, PG
Christopher R. Kehl, PE

Christopher R. Kehl, PE

Vice President, Principal Engineer

Chris Kehl serves as Vice President and Principal Engineer at Braun Intertec. Chris oversees operations for our Construction Materials Testing (CMT) group in the Twin Cities, as well as managing and reviewing construction material testing and geotechnical engineering projects. He is also responsible for leading the technical practice group for construction material testing. Since joining Braun Intertec in 2000, Chris has been a key member on many high-profile projects, including Central Corridor Light Rail Transit, U.S. Bank Stadium and Target Field. Chris holds a Bachelor of Science degree in civil engineering from the University of Wisconsin.

Gregg D. Kruse
Scott M. Mackiewicz, PHD, PE, D.GE

Scott M. Mackiewicz, PHD, PE, D.GE

Vice President, Principal Engineer

Scott Mackiewicz serves as Vice President and Principal Engineer at Braun Intertec. Scott leads the national Heavy Rail group and is focused on delivering engineering, construction management, and emergency response services to Class 1 railroads throughout the United States. With more than 25 years of geotechnical engineering experience, Scott has significant knowledge in the heavy rail and design build transportation markets and understands geotechnical risks, associated costs, and impacts to construction schedules in varying geographies and geologies. Scott routinely develops recommendations for deep foundations, ground improvement, MSE wall systems, as well as slope and subgrade stabilization. He is an active professional organizational member in the American Railway Engineering and Maintenance-of-Way Association (AREMA), GeoInstitute (GI) of the American Society of Civil Engineers (ASCE), and the International Society of Soil Mechanics. Scott holds a PhD in Civil Engineering with an emphasis in geotechnical and environmental engineering from Iowa State University and is an ASCE-AGP board certified Diplomate of Geotechnical Engineering.

Steven P. Nagle, PE
Diana S. Rader, PG

Diana S. Rader, PG

Vice President

As Vice President and Strategic Account Manager, Diana’s primary focus is developing and optimizing relationships between key clients and Braun Intertec. Previously, Diana served as Principal and Regional Manager of Central and North Texas Operations at W&M Environmental Group, a division of Braun Intertec. Diana has more than 30 years of environmental consulting experience in soil and groundwater remediation, spill response, due diligence, and permitting for oil and gas pipelines, petroleum refining, petrochemical facilities and mining operations. Diana holds a Bachelor of Science degree in Geology from the University of Texas at Austin. She is also an active member in several professional associations, including the Austin Geological Society, Texas Mining and Reclamation Association, as well as the Industry Council on the Environment, for which she also formerly served as the chairman. Diana currently serves as President of the Advisory Board for the Mickey Leland Environmental Internship Program.

Christopher F. Thompson, PE