Our People

The people at HGA, bring diverse backgrounds, expertise, and a drive to solve our client's challenges. Our emphasis on teamwork, trust, and passion for excellence helps clients achieve the extraordinary. Together, we achieve results that solve your challenges and bring about positive results.

Jay Guillot

Senior Vice President

Jay is one of HGA’s founding partners; a team-oriented leader with 40 plus years’ experience. Read More

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Don Plummer

Senior Advisor

Don is a Senior Advisor at HGA who has been instrumental in adding diverse markets. Read More

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Trotter Hunt


Since joining HGA in 2008, as leader of the business development team, Trotter successfully led. Read More

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Wynn Rogers

Vice President, Pipeline Services Business Unit

Wynn has played a key role in expanding HGA’s footprint of our Pipeline Services Business. Read More

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Mike Causey, P.E.

Vice President for Corporate Strategic Development

Mike serves as the Vice President for Corporate Strategic Development at HGA. Read More

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Jack Hunt

Vice President of Program Management

A graduate of Louisiana State University, Jack was given the distinct honor to be part. Read More

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Sam Costanza

Vice President, Engineering Business Unit

Sam joined HGA in 2008 and is the Ruston Operations Manager for HGA’s Engineering Business unit. Read More

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Matt Woodard

Chief Financial Officer

Matt brings an extensive amount of experience, enthusiasm, and entrepreneurial spirit to HGA. Read More

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Barry West

Operations Manager, Houston

Barry is the operations manager at HGA’s office in The Woodlands, Texas. Read More

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Frank Gay

Vice President, Owner’s Representative services

Throughout his career, Frank has managed the execution of design projects ranging up to 5MM workhours and $13 billion TIC. Read More

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Chris Wyatt

Vice President, Staffing

Chris joined HGA in 2005, and under his leadership, HGA’s Staffing business unit has grown. Read More

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Tyson Hackenberg

Vice President of Program Management

Tyson has over 30 years of experience in consulting for government entities (federal, state, and. Read More

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Will Voltz

Project Director

Will earned a Bachelor of Science degree in civil engineering from Virginia Tech University in. Read More

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Scott Sullivan

Engineering Manager

Since joining HGA in 2019, Scott has served as the Program Manager at our Lanxess. Read More

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John Robert Smith

Project Director

Since joining HGA in September of 2011, JR has experience across the energy, specialty chemicals,. Read More

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Jim Hughes

Director – Pipeline Services

Jim has deep experience in the oil and gas sector and has helped establish the HGA brand in the Houston market. Read More

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Ron Rowland

Engineering Manager – Baton Rouge

Ron holds a Bachelor of Science in Chemical Engineering from Louisiana State University. Read More

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David Hodgeson, P.E.

Operations Manager, Baton Rouge

Building long term relationships with clients has been a primary goal throughout David’s career. Read More

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