Leadership Team

Executive leadership team, which includes 5 transmission journeymen linemen, has decades of “hands-on” construction experience. Proactive and collaborative relationships with customers and stakeholders are critical to executing transmission projects safely and on schedule.

Casey Maslonka, CFA

Co-Founder, President

As the founding principal and President, Casey is continuing his history of successful investment and leadership in the high voltage ...

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Jon Maslonka

EVP Strategic Projects

As Executive Vice President of Strategic Projects, Jon oversees project and construction management for the company’s major transmission projects. 

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Justin Campbell

SVP Estimating

As and Senior Vice President of Estimating, Justin oversees estimating for all the company’s projects and provides critical leadership ...

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Andreas Schmitz

Chief Financial Officer

As Spartan’s Chief Financial Officer, Andreas’ responsibilities include oversight for Finance & Accounting, Tax, Treasury, Information Technology, and Global Supply ...

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Joe Stone

VP Construction

Joe is a journeyman lineman with over 30+ years of transmission line construction and management experience.

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Debbie Greenacre

VP Environmental

With 20+ years of Environmental Management experience, Debbie has extensive knowledge in the environmental planning and execution of Extra High Voltage (...

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Chuck Desrosiers

VP Risk Management

Chuck is a leader in the industry with 50 plus years of industry specific safety and risk management experience ranging from ...

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Michael Hoffman

Advisory Board

Michael serves as Co-Chair of Spartan’s Safety and Environmental Council and is a member of Spartan’s Advisory Board.

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Sid Strauss

Advisory Board

Sid serves as Co-Chair of Spartan’s Safety and Environmental Council and is a member of Spartan’s Advisory Board.

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Alana McGillivray

Senior Contract Administrator

With 20 years of project execution and contract experience, Alana has been instrumental in the successful completion of numerous landmark transmission ...

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