Our experienced team allows us to provide full in-house preconstruction and construction services to our clients including estimating, value engineering, constructability, and logistical planning. These industry veterans know how to negotiate the inevitable tough situations that arise during the construction process and always have your interest in mind.


Don started out working in the construction trades over 22 years ago and has since performed a variety of professional roles in the past 13 years as an Estimator, Project Engineer, Project Manager, Preconstruction Manager, Division Manager, and now serves as President of Greenberg Construction. He earned a Masters of Real Estate Development from Arizona State University as well as a Bachelor of Science in Construction Management from Brigham Young University. His extensive experience and education in the commercial construction industry along with his vision for the company make him invaluable to the organization. He has acquired a diverse portfolio of project types over his career which add to his multidimensional talents including educational, public works, multi-family, hospitality, retail, tenant improvement, industrial, office, custom residential, and renovation.


Dave has fulfilled multiple capacities in his career including positions as a Project Engineer, Estimator, Superintendent, Project Manager, Licensed General Contractor, and currently the Operations Manager for Greenberg Construction. He received a Bachelor of Science Degree in Construction Engineering Technology from Montana State University and is a registered LEED AP. Dave worked as an Apprentice Carpenter through college and interned as an Assistant Foreman. Dave is driven by the challenge to influence a positive and productive culture where all team members are excited about their contributions towards completing projects safely, on time and on budget. He works closely with our teams to ensure appropriate resources are in place for a successful project delivery to our clients from pre-construction to owner turnover. Dave maintains open communication with the client, architects, engineers, and subcontractors relative to the project at hand.


Rob is an accomplished professional with over 28 years of management expertise.  He is a motivated self-starter who earned rapid career advancement through a sound positive attitude, strong work ethic, and pride in personal and organizational performance.  Rob is a highly analytical decision maker with extensive experience in pre-construction, operations, and financial facets of a company.  He has proven ability to identify and cultivate talents, motivate teams, and provide precise direction.  Rob is an enthusiastic problem-solver with keen ability to rapidly assess diverse situational challenges, develop action plans, and lead teams to targeted goals.


Brandon is the Controller for Greenberg Construction. He has a Bachelor of Science degree in finance from ASU and has been in accounting for 7 and a half years, 6 of them specifically in the Construction for General Contractors trade. Brandon has been with Greenberg Construction for 4 and a half years. He is a Certified Construction Industry Financial Professional. Brandon manages project accounting, general accounting, Human Resources, and IT for Greenberg Construction. 


Scott is a passionate and seasoned project manager and has over 21 years of experience in the construction industry. He is currently a Senior Project Manager for Greenberg Construction. He holds a Bachelor of Science in Political Science from Utah State University. His background includes: project management, business development & sales, budgeting & estimating, proposal & interview development, project scheduling, contracts & purchasing, progress meetings, financial management & reporting, quality control and on-time delivery.



David is a Senior Project Manager with Greenberg Construction. He is an accomplished and results-driven project manager and has  an extensive background in directing large-scale projects over the past 35 years.  During that time he has owned and operated his own General Contracting firm in Ohio. He transplanted to Arizona in 2013. David’s energy is infectious as he continuously strives to produce high- quality results while adhering to tight schedule and budgetary constraints.  He has outstanding leadership, communication and organizational skills and an advanced technical knowledge of construction.  He provides superior customer service and consistently achieves a high level of client satisfaction.  He is a graduate of Columbus State University in Construction Management Sciences, is a LEED AP and is a CCM (Certified Construction Manager).



Bret is a Senior Project Manager with Greenberg Construction. He is a seasoned professional with 38 years of construction experience. He has demonstrated proficiency both in the field on construction sites as well as in the estimating and project management realms. His qualifications include a complete comprehension of construction supervision and subcontractor responsibilities. Bret excels in the technical aspects of construction documents including shop drawings and submittal data. Communication is a vital skill in ensuring smooth operations between clients, design teams, and subcontractors; Bret exemplifies this understanding and is always concise and professional in all his correspondence and interactions.


Marie is the Project Coordinator for Greenberg Construction. She has been in construction project administration for over 17 years. Marie earned a Construction Management Certificate from ACE Project Mangagement. She is responsible for assisting the Project Manager wherever needed and is directly responsible for the distribution and tracking of subcontract documents, certified payroll reporting, application for payments, contract completion documentation, as well as the organization of all electronic and hard project files.  She assists with submittals, RFI’s and LEED.  She is exceptional at organization and promptness and maintains a professional and energetic approach to all she does.



Shawn is the quintessential Senior Superintendent that you want on your job.  He has worked in the industry his whole life and was highly recruited by three members of the Greenberg management team last year. 

Shawn has proven capable of successfully building some of the largest and most complex projects in the valley and has a strong background in large warehouse and office projects.  He is equally competent in both the civil and vertical aspects of construction. He has over 25 years in the construction industry and has served as a project manager as well as a superintendent. He attended welding school and has earned an OSHA 40 hour certificate as well as a MSHA certification.


Tracy is a seasoned Senior Superintendent for Greenberg Construction. He earned an Associate's Degree in Electronic Technology from DeVry University. Tracy's specialties in construction include the strategic management of large-scale and high-end projects.Tracy's responsibilities on-site include the orchestration of subcontractors, supervision of site safety, and scheduling of all on-site activities. His skills include a functional knowledge and application of general contracting procedures and his results are consistent client satisfaction. 


Ray is a detailed and skilled Senior Superintendent. He has over 40 years of experience in the construction industry having spent the past 25 years focusing on projects within the Navajo Nation.  He attended CIT Crownpoint and NAU.  Ray has an excellent working relationship with the subcontractor community.  As a superintendent, Ray is responsible for supervision and safety of field construction, performance of subcontractors and verification of shop drawings, constructability and quality assurance.  He assists in planning and scheduling of all construction, updates construction progress reports, manages on-site safety and coordinates all other activities at the jobsite.



Merrell is an Assistant Superintendent for Greenberg Construction. He has over 12 years of experience in the construction industry focusing on the Navajo Reservation.  He graduated from Rough Rock High School and has worked in concrete, form setting, carpentry, drywalling, finish work, roofing, flooring, and sitework. His extensive background in the subcontractor trades qualify him to effectively assist in managing our subcontractors in the field.  His hard work and dedication have made him an important part of the Greenberg team. 



Matt St. Martin is the Business Development Director for Greenberg Construction. He has a rich history in the construction industry and has fostered strong relationships over the past 3 decades with local businesses. Matt effectively serves as the connecting piece between owners, architects, and contractors. He is knowledgeable, personable, and an integral part of Greenberg Construction’s goal to build confidence.


Darren is a member of the Greenberg Business Development department as a Construction Development expert.  Darren earned his Bachelor of Science in Administrative Management degree from Haskell Indian Nations University in Lawrence, KS. His unique experience in the construction industry as well as working with tribal entities, coupled with his natural charisma and ability to connect with people make him a valuable asset to the Greenberg team.



Mandei currently serves as the Pre-construction and Marketing Coordinator for Greenberg Construction.  She has 5 years of collective experience in the administrative capacity in the General Construction Industry. Her career experience in the work force on the front lines of client relations have required her communication skills to be highly developed. She is familiar with many operations processes including pre-construction procedures. Responsive and concise communication are her strongest skillsets and her dedication to client satisfaction is consistent. She attends Chandler-Gilbert Community College.