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OUR LEADERSHIP

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Shannon Holman, P.E.
President & Co-Founder

With over 20 years of civil engineering expertise, Shannon Holman has been instrumental in designing everything from sewer systems to small, mid-size and large airfield runways and taxiways. Shannon thrives on collaborating with clients and engineers to bring projects to life. As President, she drives Orion's success with her strategic vision, financial acumen, and unwavering commitment to staff development. Read more about what motivated Shannon to establish Orion.​

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Email: shannon.holman@orionea.com
Tel: (808) 540-5900
LinkedIn: Shannon Holman

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Tony Raposo, P.Eng.
Executive Vice-President
& Co-Founder

With over three decades of civil engineering design experience, Tony Raposo has excelled in numerous roles, including design team manager, project manager, lead civil design engineer, and client representative. His dedication to detailed engineering, structured workflows, and impeccable document control ensures top-tier project outcomes. Tony oversees Orion’s Quality Management System, which is grounded in ISO 9001 principles to ensure quality checks at every project phase. Read more about what motivated Tony to establish Orion.


Email: tony.raposo@orionea.com
Tel: (510) 910-0634

LinkedIn: Tony Raposo

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Frank Lobedan, P.E.
Senior Principal Engineer

An aviation engineering expert, Frank brings 30 plus years of experience in delivering complex aviation projects. He thrives in collaborative settings and excels in communication and project planning. Frank’s hands-on approach and creative problem-solving skills have made him a go-to for paving, grading, earthwork, and terminal renovations. His coordination with agency staff, contractors, and tenants results in quality work within budget and with minimal operational impact.

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Email: frank.lobedan@orionea.com
Tel: (510) 715-6950

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Andrew Valentino, P.E.
Associate Vice-President
& Senior Civil Engineer

Andrew has dedicated his career to the aviation industry, gaining a thorough understanding of FAA criteria and the procurement process. His projects have spanned the country. Currently, he supports projects in Hawaii, Washington State and Massachusetts. His hard work and attention to detail ensure high-quality outcomes in all his projects. 

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Email: andrew.valentino@orionea.com
Tel: (518) 727-9584
LinkedIn: Andrew Valentino

HAWAII

1003 Bishop Street, STE 2020
Honolulu, HI 96813

CALIFORNIA

66 Franklin Street STE 300 – 9385
Oakland, CA 94607

WASHINGTON

509 Olive Way, STE 1308,
Seattle, WA 98101

MASSACHUSETTS

83 Cambridge Street, STE 3D
Burlington, MA 01803

© 2025 Orion Engineers and Associates. Website by PECO Arts

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