Guardian's industry-leading teams work around the clock to ensure deadlines are met.

We keep up to date on certifications and employee excellence.

Meet the Team

Guardian's employees are world-class professionals.

Nona J. Cunane


Nona started Guardian Construction Company as a small woman-owned landscaping company in 1976. Now, Guardian specializes in underground infrastructure construction. With 40+ years in the industry, Mrs. Cunane is active in Guardian's daily operations and has received numerous awards as a leader in the business community.

Nona van Deusen

Senior Vice President

Nona VanDeusen was raised in the construction business under her mother and father, Nona and Joe Cunane. She has stepped into her father's shoes and currently oversees operations, bid selection/approval, and contract management. She oversees all operational functions and project schedules.

Bradley C. P. Leto

Executive VP

Mr. Leto has been with Guardian since 1996, bringing over 30 years of experience in field operations managing multiple projects. He is currently responsible for overseeing the daily business operations and administration of the company.

Mark Mills

Utility (Gas) Superintendent

Jim WIlliams

Quality & Safety Manager

Rob Penland Jr.

Field Coordinator

Renee Hamm

Human Resources

Teresa Miller

Executive Assistant

Jordan Carlson

Fleet Services

We operate our own fleet maintenance department at our New Castle, Delaware facility.

Manpower Resources

Guardian has many long-term experienced and knowledgeable field employees. All foreman/supervisors are fully trained and skilled in equipment operations, print reading, trenching, excavation, grading and paving, in addition to specializing in underground infrastructure construction.

Equipment Resources

Guardian owns over 200+ pieces of regular and heavy duty equipment which are needed for a variety of earth-moving and demolition projects.