Dan McGowan

Dan McGowan is the CEO of Mainline Environmental, a leading full-service environmental solutions company bringing expertise and support to high-priority environmental testing, compliance, remediation, training, and laboratory needs. With over two decades dedicated to the environmental risk and sustainability space, Mr. McGowan demonstrates robust industry expertise to Mainline Environmental and its platform companies, LEW Environmental Services, NAETI, and Enviroscience Consultants. He ushers steadfast organizational best practices, financial governance, and operational efficiencies at every rung to ignite growth and close performance gaps. Mr. McGowan architects high-performing teams to build consensus across key stakeholders, client partners, and internal teams with an unyielding focus on sterling customer service.


Before joining Mainline Environmental, Dan McGowan was the Chief Operating Officer for Wilmington Paper Company. Here he modernized business capabilities to achieve revenue growth targets and stabilize market performance. Before this, he was the Principal for McGowan Advisory, providing buy-side diligence and managed sale processes for private equity and respective portfolio companies. Prior to this, he served as the Chief Revenue Officer for Smarter Sorting, the waste and sustainability venture startup company where he created the overarching business structure and operations. Earlier in his career, Mr. McGowan serves as the Chief Operating Officer for River Road Waste Solutions, launching technology capabilities for recycling and sustainability.

Dan McGowan earned his MBA from Rutgers University and his BS in Accounting from the University of Delaware. He is the recipient of numerous professional awards, including a three-time recipient of Inc. Magazine’s Inc. 5000 and a four-time recipient of the Top 250 Privately-Held Companies by the New Jersey Business Journal. He was named to New Jersey Fast 50 and recognized as a 2015 Business of the Year Finalist. Dan McGowan calls Fair Haven, NJ home with his wife and 2 children.

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