Executive Team

A gray-haired woman wearing glasses smiles at the camera; she wears a black cardigan over a colorful patterned blouse, standing before a softly blurred indoor windowed background.

Elizabeth A. Jones, PE, SE

Principal

Director of Structural Engineering

A smiling man wearing a blue shirt and dark blazer looks at the camera, standing outdoors in soft sunlight with a blurred background of trees and a building.

Shane McCormick, PE, SE

Principal

President

Bald, smiling middle-aged man looking at the camera in a softly blurred modern interior with large windows and greenery visible outside.

Matthew B. Schlageter, PE, LEED AP

Principal

Director of Civil Engineering

Trisha Viener

Director of Operations

Principals

Smiling middle-aged bald man wearing a light-blue button-down shirt, facing the camera and relaxed; standing indoors by a large window with a sunlit, blurred residential background.

Ben Bromiel, PE

Principal

Group Manager, Investigative Engineering

Middle-aged man wearing rimmed glasses and a suit smiles openly, head slightly tilted; short beard, blue shirt and patterned tie provide contrast against a soft-focused outdoor building backdrop.

Peter Buckley, PE

Principal

Civil Engineering

Smiling middle-aged man in a gray suit and white shirt, tilting his head slightly toward the camera, standing outdoors with soft-focus trees and a building in the background.

Ryan Byrne, PE, CFM, LEED AP

Principal

Civil Engineering

Patrick Crosby, SE, PE, LEED AP, FDBIA

Principal

Structural Engineering

A smiling man with brown hair looks at the camera, wearing a blue blazer and light V-neck shirt, indoors before a large window showing blurred green and yellow foliage.

Benjamin W. Downey, PE

Principal

Structural Engineering

Kevin Dunham, PE

Principal

Investigative Engineering

A red-haired bearded man with blue eyes in a dark suit and purple tie smiles directly at the camera, standing against a softly blurred glass building and trees background.

Andrew Emmons, PE

Principal

Investigative Engineering

A smiling man looks at the camera, wearing a blue blazer and checked shirt, standing by a glass window with a softly blurred outdoor background.

Nick Ereckson, PE

Principal

Structural Engineering

Middle-aged man with short gray hair and trimmed beard, smiling gently at camera, wearing a checked shirt and dark blazer, standing outdoors by a glass window with blurred trees.

Shane Ewing, PE

Principal

Group Manager, Construction Engineering Services

Dwight L. Gilbert, PE

Principal

Structural Engineering

Middle-aged man smiles at camera, wearing a light checked dress shirt; standing indoors near large blurred windows with soft natural light and out-of-focus greenery behind him.

Michael (Mike) I. Goldstein, PE, LEED AP

Principal

Structural Engineering

Emily M. Guglielmo, SE, PE, F.SEI

Principal

San Francisco Structural Leader

A bald man smiles at the camera, wearing a navy blazer and striped dress shirt, standing before blurred glass and greenery, arms folded.

Kevin Haas, PE, SE, LEED AP

Principal

Structural Engineering

Adult man smiling directly at camera, wearing a blue sweater over a checked shirt, standing outdoors in front of a blurred urban background with windows and brick.

Brent Hanlon, PE, SE

Principal

Structural Engineering

A smiling woman with long dark wavy hair looks at the camera, wearing a green floral blouse; soft, blurred indoor background with vertical window frames.

Melyssa C. Hartzell, PE

Principal

Civil Engineering

Smiling middle-aged bald man looks at camera, wearing a navy blazer and light blue button-down shirt, standing outdoors before a blurred building facade with trees and reflected windows.

Patrick (Pat) F. Horn, PE

Principal

Civil Engineering

A gray-haired woman wearing glasses smiles at the camera; she wears a black cardigan over a colorful patterned blouse, standing before a softly blurred indoor windowed background.

Elizabeth A. Jones, PE, SE

Principal

Director of Structural Engineering

Adult man wearing black-framed glasses and a navy blazer looks directly at the camera with a neutral expression; shallow depth-of-field shows a softly blurred outdoor, urban background.

David A. Kuntz, PE

Principal

Civil Engineering

Smiling older man with glasses and short gray hair, wearing a dark blazer and green shirt, stands indoors near a window with a bright, blurred outdoor background.

Timothy (Tim) J. Lack, PE

Principal

Structural Engineering

Woman with short light-brown hair and patterned glasses smiles at the camera, wearing a red blouse and delicate necklace against a softly blurred windowed background.

Nicole E. Lane, PE, SE

Principal

Investigative Engineering

Person smiling directly at camera, wearing a blue checkered button-up shirt and white undershirt; sitting outdoors with blurred columns and greenery in a soft-focus background.

David Le, PE

Principal

Civil Engineering

Middle-aged man with salt-and-pepper hair and mustache, looking directly at the camera, wearing a navy blazer and blue button-up, standing before a blurred outdoor glass-and-greenery background.

David A. Lovato, PE

Principal

Civil Engineering

Adult man smiles at the camera, wearing a blue collared shirt; short hair and light stubble. Context: softly blurred, neutral-toned interior background.

L. Mark Luna, PE

Principal

Vail Civil Leader

A smiling woman with gray-streaked curly hair and black glasses looks at the camera, wearing a teal blouse, black blazer and a small pendant necklace; soft, blurred indoor background.

Tonya M. Major, PE

Principal

Structural Engineering

J. Michael McAffrey, PE

Principal

Structural Engineering

A smiling man wearing a blue shirt and dark blazer looks at the camera, standing outdoors in soft sunlight with a blurred background of trees and a building.

Shane McCormick, PE, SE

Principal

President

Patrick McManus, PhD, PE, SE

Principal

Structural Engineering

Sean J. Molloy, PE

Principal

Vail Structural Leader

Kevin S. Moore, SE, PE, F.SEI

Principal

Structural Engineering

Smiling man with short salt-and-pepper hair and light beard, wearing a blue checkered shirt, looking at the camera while standing before a softly blurred outdoor/architectural background.

Daniel T. Mullins, PE, SE

Principal

Group Manager, Structural Engineering

Middle-aged man smiling warmly, wearing a dark suit, pale yellow shirt and patterned tie, standing indoors beside a glass window with a softly blurred outdoor background.

C. Ben Nelson, PE

Principal

Structural Engineering

Middle-aged man smiling with arms crossed, standing outdoors by a brick wall and glass window; wearing a dark short-sleeve polo, short brown hair, light stubble, relaxed expression in soft daylight.

Scott E. Paling, PE, LEED AP

Principal

Civil Engineering

Man wearing round black glasses smiles toward the camera, dressed in a brown tweed blazer and light-blue striped shirt, seated before a softly blurred outdoor/office background.

Michael P. Renes, PE, SE

Principal

Structural Engineering

Bald, smiling middle-aged man looking at the camera in a softly blurred modern interior with large windows and greenery visible outside.

Matthew B. Schlageter, PE, LEED AP

Principal

Director of Civil Engineering

A bald, middle-aged man smiles at the camera, wearing a white shirt and dark blazer, posed outdoors in front of glass windows with blurred green foliage reflected behind him.

André H. Schlappe, PE

Principal

Civil Engineering

Garth F. Scholl, PE, SE

Principal

Structural Engineering

Middle-aged man with short graying hair and salt-and-pepper goatee smiles warmly at camera while wearing a brown blazer and light-blue button shirt, standing indoors by a stacked-stone column and window.

John R. Shaffer, PE

Principal

President Martin/Martin Wyoming

Adult man wearing glasses, smiling at the camera, in a light-blue button-up shirt, standing indoors near a window with a softly blurred exterior background.

Eric R. Sobel, PE, SE, LEED AP

Principal

Structural Construction Engineering Services

Patsy Sullivan, PE, LEED AP

Principal

Civil Engineering

Smiling middle-aged person with white hair and trimmed beard, wearing a blue shirt and dark blazer, facing camera in a bright indoor setting beside a window with autumn foliage outside.

Mark D. Thornbrough, PE

Principal

Civil Engineering

Man smiling, looking at the camera, wearing a light blue button-up shirt, standing indoors before large glass windows showing blurred green-and-yellow trees outside.

Brian V. Tinkey, PE

Principal

Structural Engineering

Woman smiling broadly, shows teeth, wearing blue top and pearl-and-gold necklace; shoulder-length blonde hair softly curled, posed against a softly blurred neutral outdoor background.

Erica A. Toren, PE, LEED AP

Principal

Director of Marketing

Middle-aged man with gray hair and trimmed beard smiling at the camera, wearing a gray button-up shirt, posed against a softly blurred glass-and-urban background.

Pontus B. Ugander, PE

Principal

Group Manager, Structural Engineering

Jeffrey A. White, PE

Principal

Civil Engineering

Middle-aged man smiles directly at camera, arms crossed, wearing a blue shirt and gray blazer, standing indoors near large windows with softly blurred green-yellow trees visible outside.

William P. Willis, PE

Principal

Civil Engineering

Woman smiling directly at camera, wearing a bright magenta blouse with shoulder-length straight blonde hair, against a softly blurred neutral background suggesting an indoor corridor or outdoor plaza.

Tami J. Worker, PE

Principal

Investigative Engineering

Associates

Smiling woman with straight, shoulder-length black hair wearing a dark cardigan and necklace smiles directly at the camera against a blurred outdoor background.

Deborah Alvarado, PE

Associate

Civil Engineering

Bald man in a pink-and-white striped polo smiles at the viewer; short beard and light green eyes, seated outdoors with a soft, blurred background and warm natural light.

Daniel Bearse, PE

Associate

Civil Engineering

A smiling man with short hair, a trimmed beard and rectangular glasses faces the camera, wearing a plaid blazer over a dark shirt against a softly blurred outdoor/urban background.

Kirby J. Beegles, PE, SE

Associate

Structural Engineering

Adam Bent, PE, LEED Green Associate

Associate

Civil Engineering

Adam Boswell, PE, SE

Associate

Atlanta Structural Leader

C. Abraham Chen, PE, LEED AP

Associate

Structural Engineering

Woman with shoulder-length brown hair smiling at camera, wearing maroon textured blouse and gold dangling earrings, posed against a softly blurred indoor/outdoor background.

Chelsy Clark, PE

Associate

Civil Engineering

Bald man with round glasses and a full beard — smiling broadly, showing teeth — standing against a softly blurred indoor background, wearing a dark plaid blazer and white dress shirt.

J. Matthew Dezort, PE

Associate

Structural Engineering

Colin Dinsmore, PE

Associate

Civil Engineering

Smiling middle-aged man with short gray hair and glasses smiles at the camera, standing outdoors before blurred autumn foliage, wearing a blue shirt and cream cable-knit vest.

John Eddy, PE

Associate

Civil Engineering

Renee Ereckson, PE, LEED AP

Associate

Structural Engineering

Smiling man in a dark suit and white shirt, facing the camera; standing near a stone column with a blurred glass-windowed office background, warm natural lighting.

Jim Foreman, PE, SE

Associate

Investigative Engineering

Man (close-up headshot) smiling at camera, wearing a dark suit jacket and light checkered shirt, seated in front of an orange metal staircase with a softly blurred background.

Rob E. Frankenberger, PE, LEED AP, DBIA Assoc.

Associate

Civil Engineering

Person with short dark hair and trimmed beard smiling at camera, wearing a navy blazer and white collared shirt, standing in front of blurred glass with autumnal outdoor background.

Fumi Hirose, PE

Associate

Investigative Engineering

Andrew Lack, PE, SE

Associate

Kansas City Structural Leader

Jera Likely, PE, SE

Associate

Structural Engineering

A smiling adult man with short dark hair and light stubble looks at the camera, wearing a blue-green plaid button-up, standing before a blurred glass and tree background.

Justin V. Meeks, PE

Associate

Civil Engineering

Kyle P. Messmer, PE, ENV SP

Associate

Civil Engineering

Amanda N. Miller, PE

Associate

Structural Engineering

Bearded man smiling with arms crossed, wearing a light-blue dress shirt; standing indoors by large windows with soft natural light and blurred green trees visible outside.

Craig Racey, PE

Associate

Investigative Engineering

A smiling bearded adult man with light brown hair faces the camera, wearing a light polo with a swoosh logo; indoors near a window overlooking blurred trees.

Tyler W. Robison, PE, SE

Associate

Structural Engineering

Smiling bearded man looks toward the camera, wearing a blue blazer and white patterned shirt; standing outdoors near reflective glass with blurred trees and a building in the background.

Landon S. Harman, PE, SE

Associate

Structural Engineering

Bearded man smiles directly at the camera, wearing a light-blue striped button-down shirt; soft, blurred sunlit background suggests an indoor workspace or café.

Matthew J. Schneider, PE

Associate

Investigative Engineering

Smiling middle-aged man in a gray blazer and blue shirt poses facing the camera, standing outdoors before a blurred glass building reflection.

Michael H. Schulz, AIA

Associate

Investigative Engineering

Smiling man in a navy blazer and patterned white shirt faces the camera, slightly angled; softly blurred outdoor urban background with glass reflections and trees.

Roberto Suarez, PE, LEED AP

Associate

Structural Engineering

Derek D. Swanson, PE

Associate

Structural Engineering

Mason A.C. Talkington, PE

Associate

Civil Engineering

Bearded middle-aged man in glasses and a blue-checked button-up smiles at camera, posed outdoors with blurred trees and building in the background.

Brian L. Techau, PE

Associate

Civil Engineering

Bald man with glasses and trimmed beard smiles with arms crossed, wearing a gray blazer and white shirt, standing before a softly blurred outdoor/office background.

Luke D. Waldo, PE

Associate

Investigative Engineering

Donald Weber, PE

Associate

Civil Engineering

Scott Wert, PE

Associate

Structural Engineering

Older man with glasses smiles at the camera; white-gray beard and short hair, wearing a dark collared shirt against a softly blurred indoor background.

David J. Wittman, PE

Associate

Investigative Engineering

Corporate Leadership

Steven T. Roberts

Director of IT

Barbara J. Romero

Director of Human Resources

Woman smiling broadly, shows teeth, wearing blue top and pearl-and-gold necklace; shoulder-length blonde hair softly curled, posed against a softly blurred neutral outdoor background.

Erica A. Toren, PE, LEED AP

Principal

Director of Marketing

Trisha Viener

Director of Operations