Leadership

Hoyle Tanner’s professionals are as diverse as our services. Their business experiences, education and interests shape the firm’s culture. Our team members, each having a unique set of talents, are instrumental in providing a full range of service capabilities.

Christopher Mulleavey, PE

President
Chief Executive Officer

Matthew Low, PE

Senior Vice President
Chief Operating Officer

Michelle Carrozzella's Leadership Photo
Michelle Carrozzella

Treasurer
Chief Financial Officer

Robert Furey, PE

Senior Vice President
Division Manager – Northeast Aviation Services

Judy Donovan Hann

Senior Vice President
Director of Human Resources

Todd Clark, PE

Senior Vice President
Principal Transportation Engineer

Sean James, PE

Senior Vice President
Division Manager – Ground Transportation

Joseph Ducharme Jr., PE, BCEE

Senior Vice President
Division Manager – Municipal Engineering Services

Wilbur Mathurin Headshot
Wilbur Mathurin, PE

Vice President
Division Manager-Southeast Aviation

William Davidson, PE

Vice President
Lead Civil Engineer

Andrew Sturgeon, PLS

Vice President
Regional Business Manager – Maine

Jon Olin, PE

Vice President
Regional Business Manager – Vermont

Nichole Davis

Vice President
Creative & Development Director

David Langlais, PE

Associate
Regional Business Manager – Massachusetts

Nils Gonzalez Headshot
Nils Gonzalez, PE

Vice President
Senior Airport Engineer

Josif Bicja Headshot
Josif Bicja, PE

Vice President
Bridge Team Leader

Ed Weingartner Headshot
Edward Weingartner, PE

Vice President
Senior Structural Engineer

Stephen Haas Leadership Photo
Stephen Haas, PE, PTOE

Vice President
Highway Team Leader

Aaron Lachance Headshot
Aaron Lachance, PE

Vice President
Senior Structural Engineer

marisa dibiaso headshot
Marisa DiBiaso, PE

Vice President
Senior Civil Engineer

kimberly peace headshot
Kimberly Peace

Vice President
Senior Environmental Coordinator

Suzy Sheppard Headshot
Suzanne Sheppard, PE

Vice President
Senior Airport Engineer

From the blog

Learn about ongoing projects and the innovative processes we employ for our clients.