Wes Morrill, operations manager

Mark brings over 25 years of experience in Project Management. His experience includes Erosion Control, Native Seeding, Landscape and Reclamation. Mark has extensive knowledge and experience with highway construction, field executing SWPPP plans and environment controls.


In Mark's spare time he enjoys spending time with family, hunting and fishing

Peggy Hughes, Controller

Seamus Marrion, Commercial Estimator/Residential Sales

janet steelfox, business development

Dave brings over 33 years of experience in Project Management, Quality Assurance and direct project supervision as a Superintendent. Dave has authored Quality Control Manuals, Safety Manuals, Project and Quality Execution Plans and Field Inspection Plans. His experience extends to working with multinational workforce in foreign countries.


When Dave is not outdoors working; he is outdoors capturing still shots with photography. He enjoys traveling, hunting, fishing, camping and hiking. 

Mark Waldrop, project Manager

Charlie Johnson | President

Over 20 years of experience in heavy civil and concrete structure related work. It is an ongoing pleasure to continue to advance skills learned from ASU in the concrete industry. While working in the construction industry I have worked in many areas from; mining, roadways, bridges, nuclear, heavy civil, underground and vertical construction. Through the years I have developed  skills in budgeting, client relations and contract management. This has made me a well-rounded fit for the construction industry. 

Spouse: Marianne
Children: (L-R) Kathryn, James, Charles, Ryan

With more than ten years  of experience in the construction industry, Charlies main focus has been in field engineering and construction completion/turnover. Charlies areas of experience include Engineering, Job Site Coordination, Planning/Scheduling, as well as Operations. He also has industrial civil, mechanical, and electrical experience, which includes power (Fossil fuels), process projects, and some small cap residential construction. Most recently appointed to outline, track and turnover to client a 560 million dollar power project.  Charlie is detail oriented and has a proven track record for carrying out organizational directives in an efficient and timely manner. Charlie can communicate well and possesses excellent managerial skills.

When he is away from the office, it’s family, church, hunting and fishing time. 

Janet brings over 11 years of business expertise from the real estate, banking and financial markets. Janet has extensive experience in the construction industry having operated her own contracting companies in addition to working for world class contractors. Janet has previous experience in purchasing and payroll and rental equipment management.  

When not pursuing business opportunities Janet enjoys reading, photography, travel, and spending time with family, especially grandchildren.

David Steelfox, Vice President of Construction 

For the past five years I have been working in the landscaping industry, specializing in irrigation. Before working with pipes and playing with dirt; I sold homes for a living.

Arizona native, fluent in both English and Spanish. I enjoy climbing trees and flying kites in my spare time. My favorite food is Mexican “sea food”.  

Peggy brings over 30 years of experience in the construction industry to OSM which includes General Contractor experience and Subcontractor Experience. Though her primary role has been in accounting and as lead administrator; she also has experience in estimating and project management.

When Peggy is not working you can find her mountain biking on one of Arizona’s many trails, she served as an Ambassador for Liv Cycling (Giant Bicycles women’s line) in 2014 and 2015, and can often be found encouraging other women to try out biking. Peggy also enjoys volunteering her time to local charities and spending time with her family.