Lasse Petterson
Chief Executive Officer and Director

Mr. Petterson was appointed to the role of Chief Executive Officer (CEO) on May 1, 2017, by the Board of Directors.   Mr. Petterson most recently has served as a private consultant to clients in the Oil & Gas sector and served as Chief Operating Officer (COO) and Executive Vice President at Chicago Bridge and Iron (CB&I) from 2009 to 2013.  Reporting directly to the CEO, he was responsible for all of CB&I's engineering, procurement and construction project operations and sales. Prior to CB&I, Mr. Petterson was CEO of Gearbulk, Ltd., a privately held company that owns and operates one of the largest fleets of gantry craned open hatch bulk vessels in the world.  He was also President and COO of AMEC Inc.Americas, a subsidiary of AMEC plc, a British multinational consulting, engineering and project management company.  Prior to joining AMEC, Mr. Petterson served in various executive and operational positions for Aker Maritime, Inc., the deepwater division of Aker Maritime ASA of Norway over the course of 20 years.  He spent the first nine years of his career in various positions at Norwegian Contractors, an offshore oil & gas platform contractor.  Mr. Petterson holds both master's and bachelor's degrees from the Norwegian University of Technology.

Mark Marinko
Senior Vice President and Chief Financial Officer

Mr. Marinko starts at Great Lakes with a strong background in operations and finance working for TransUnion, LLC through August 2013. Mr. Marinko was most recently President of the Consumer Services division at TransUnion leading the direct to consumer and business market, customer service, consumer compliance and marketing for the credit information company. Prior to his position as president, Mr. Marinko has been in increasing accounting and financial roles as Controller and Vice President of Finance at TransUnion since 1996. Prior to TransUnion, Mr. Marinko served as controller of Official Airline Guides. In his over 30 years of professional experience, Mr. Marinko has held roles specializing in accounting, finance, sales, systems and business operations.

David E. Simonelli
President of Dredging

Mr. Simonelli was named Senior Vice President in February 2009. Mr. Simonelli is responsible for the Operations Support Group which includes Site Management, the Safety Health & Environmental Department, Field & Production Engineering and Risk Management. He was named a Vice President of the Company in 2002 and Special Projects Manager in 1996. He joined the Company in 1978 as a Project Engineer. Mr. Simonelli earned a BS in Civil and Environmental Engineering from the University of Rhode Island. He is a member of the Hydrographic Society, the American Society of Civil Engineers and the Western Dredging Association.

Christopher P. Shea
President of Great Lakes Environmental & Infrastructure Solutions

Mr. Shea was named President of Environmental Operations in November 2015.  He has over 25 years of experience in global engineering, environmental services and construction management services.  Prior to joining Great Lakes, Mr. Shea was at CH2M Hill, Inc., a global environmental and engineering consulting services firm, where he was most recently President of the Environmental and Nuclear Business Group.   Prior to his nine year tenure at CH2M Hill, Mr. Shea was employed by Envirocon, Inc. as Senior Vice President of Business Development and Strategic Planning.  Mr. Shea started his career at Waste Management (formerly Chemical Waste Management) in 1986.   He received a BS in Chemistry from the University of Arizona.

Kathleen Mackie LaVoy
Senior Vice President, Chief Legal Officer and Corporate Secretary

Mrs. LaVoy was appointed Senior Vice President, Chief Legal Officer and Corporate Secretary in January 2018, having served as the interim Chief Legal Officer since 2015. She joined the Company in 2007 as Assistant General Counsel and was promoted to Vice President and General Counsel, Dredging Operations in July 2012. Mrs. LaVoy received her J.D. cum laude from Northwestern University School of Law and was an associate in the litigation department of the Chicago law firm Winston & Strawn LLP following graduation. Mrs. LaVoy earned a Bachelor of Science degree with distinction in Business Administration from the University of North Carolina – Chapel Hill. She is a fourth generation dredger.

Kyle D. Johnson
Executive Vice President and Chief Operating Officer

Mr. Johnson was promoted to Executive Vice President and Chief Operating Officer in 2013. He had served as Senior Vice President since 2009. Previously, he held the position of Vice President and Chief Contract Manager of the Company since 2006. He joined the Company in 1983 as a Mechanical Engineer and has since held positions of increasing responsibility in domestic and international engineering and operations, including Area Engineer, Special Projects Manager, and Manager of Production Engineering. Mr. Johnson was named Vice President in 2002. Mr. Johnson earned a BS in Engineering from Purdue University and an MS in Construction Engineering & Management from Stanford University.

Steven R. Auernhamer
Vice President & Area Manager, Gulf Coast

Mr. Auernhamer was named Vice President and Area Manager, Gulf Coast in 2012. He started with Great Lakes in 1990 as a Field Engineer after graduating with a bachelor’s degree in Civil Engineering from Michigan Technological University. He was promoted to Hydraulic Division Engineer in 1999, and a Project Sponsor in 2006 and Area Manager, Gulf Coast in 2011.

Annette Cyr
Vice President of Human Resources

Annette Cyr joined Great Lakes in January 2018 as Vice President of Human Resources. Ms. Cyr oversees all aspects of Human Resources ensuring the company’s talent management strategy and resulting practices support and promote the business’ long-term growth. She also serves on the Executive Leadership Team and support the Compensation Committee. Ms. Cyr has over twenty-five years of human resources experience with both public and private companies. Throughout her career, her key focus areas have included mergers and acquisitions, leadership and talent development, and the implementation of global processes and systems. Ms. Cyr has a Master’s degree in Personnel and Employment Relations and a Bachelor’s degree in Political Science and History, both from the University of South Carolina.

J. Christopher Gillespie
Senior Vice President - Operations

Mr. Gillespie was named Vice President and Special Projects Manager in 1997. He joined the Company in 1987 as a Project Engineer and previously served as a Commissioned Officer in the U.S. Army Corps of Engineers. Mr. Gillespie earned a BS in Civil Engineering from the U.S. Military Academy at West Point and a graduate degree in Environmental Engineering from the University of Tulane. He is a member of the Society of American Military Engineers.

William H. Hanson
Vice President - Government Relations and Business Development
Mr. Hanson has been a Vice President of the Company since 2006. Mr. Hanson joined the Company in 1988 as an Area Engineer in its Staten Island Division Office. He earned a B.S. in Ocean Engineering from Texas A&M University in 1979. Mr. Hanson began his career with the U.S. Army Corps of Engineers in Galveston, Texas and Los Angeles, California, and then with Connolly Pacific Company in Long Beach, California. Mr. Hanson is currently the President of the Western Dredging Association and is a board member of several industry trade associations.
John F. Karas
Senior Vice President - Estimating
Mr. Karas has been Senior Vice President of the Company since 2009. Previously, Mr. Karas has served as a Vice President since 2002, and was named Chief Estimator in 1992. He joined the Company in 1983 as Project Engineer in the Hopper Division. Mr. Karas earned a Bachelors degree in Finance from the University of Notre Dame. He is a member of the Western Dredging Association and the Association for the Advancement of Cost Engineering.
Paul LaMourie
Vice President, Hopper Dredging

Mr. LaMourie was promoted to Vice President, Hopper Dredge Division in 2013. Previously, he served Great Lakes as Hopper Dredge Manager, Senior Production Engineer and Project Sponsor. Mr. LaMourie brings over 25 years of experience within the dredging industry. He has earned a bachelor’s degree in Naval Architecture and Marine Engineering from the University of Michigan.

Katherine Hayes O'Halloran
Vice President, Corporate Controller & Treasurer

Mrs. O'Halloran was appointed to her position of Vice President, Corporate Controller in 2013. She previously served as Treasurer of the Company since 2011 and also held the role of Director of Investor Relations and Financial Reporting since joining the Company in 2006. Prior to Great Lakes Mrs. O'Halloran was Director of Corporate Accounting at TransUnion, LLC. Mrs. O'Halloran is a Certified Public Accountant and has a Bachelor of Science degree in Accountancy from Northern Illinois University and a M.B.A in Finance from St. Xavier University in Chicago.

Thomas C. Roberts
Vice President - Site Engineering Development

Mr. Roberts was named Vice President in 2011 having managed the Field Engineering Department since 1996. He joined the Company in 1989 as a Field Engineer Intern and within Field Engineering roles worked on Company projects throughout the US and Middle East. He holds a Bachelors degree in Civil Engineering Technology from Murray State University and completing Master of Business Administration from Lewis University. He is a member of American Congress on Surveying and Mapping.

Kevin Strahley
SVP & Chief Operating Officer, Great Lakes Environmental & Infrastructure Solutions

Mr. Strahley has more than 30 years of experience in the environmental remediation industry, including ten years at Rocky Mountain Arsenal (RMA) where he directly managed eight projects totaling more than $80 million in value.  He is responsible for all operational aspects of Great Lakes Environmental and Infrastructure Solutions, as well as assisting the president in the development and execution of the long-term strategy and growth of the company.

Previously, Mr. Strahley was with Envirocon, Inc. as Director of Remediation Services where he was responsible for overall safety, profitability and success of the service line including both operations, estimation and business development. Prior to Envirocon, Mr. Strahley was at Ferguson Harbour Inc. where he was the Vice President of Operations.  He received his BA in Business Administration from Bluffton University.

Russell F. Zimmerman
Vice President - South Atlantic Area Manager

Mr. Zimmerman was named Vice President and Special Projects Manager in 2009. He joined the company in 1982 as a Field Engineer. Mr. Zimmerman earned a BS in Construction Management Technology from Purdue University. His is a member of the Society of American Military Engineers and the Western Dredging Association.

For recent transactions, including derivative transactions, see our Section 16 SEC filings page.