Our People

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Greg_Williams
President & CEO

Greg Williams

Greg is a second-generation leader and continues the work his father began 40 years ago. While training under his father, Greg has proven his ability to continue the growth and development of the Irontree company. Greg is a graduate of the Arizona Builders Alliance (ABA) – LDF class and has his CPC designation. Since taking over as President in 2011, Greg has established team leaders who are driven by putting people first, integrity, and aiming for excellence in everything.

Ryan_Bailey
Vice President & Director of Construction Operations

Ryan Bailey

With 25 years on the job at Irontree, Ryan has become an indispensable leader of the team. As an ASU - Del E. Webb School of Construction graduate, he has utilized his skills to run the operations of Irontree with excellence. His abilities have allowed Irontree to take on multiple ground-up projects at a time while leaving room for new opportunities.

Marj_Weber
Treasurer & CFO

Marj Weber, CCIFP

Serving Irontree for over 40 years, Marj Weber has been an integral asset to the growth and development of the company. While working as Irontree’s CFO and Treasurer she has developed the firm’s Accounting and Treasury procedures. Her membership in the Construction Financial Management Association has been instrumental in developing her leadership skills while making sure she had access to the latest accounting and legislative information necessary for Irontree’s success. Her ability to adapt to industry changes has allowed Irontree to stay up to date on the best construction-accounting practices.

Matt_DeHerrera
Senior Estimator

Matt DeHerrera

In his 20 plus years with the Irontree family, Matt has been able to grow with the company through various positions. Matt’s ability to connect with both customers and team members alike has been valuable in cultivating business partnerships. He has been instrumental in securing many of highly successful projects for Irontree.

Nicole_McVay
Secretary/Controller

Nicole McVay

Representing the third generation of the Williams family, Nicole has grown into her role as controller over the past 10 years. Seeing a strong work ethic in both her grandfather and father has encouraged her to seek excellence in all she does here at Irontree. Her attention to detail and diligence has kept all accounting processes both accurate and on track. Her desire to uphold her family’s business values has been a great benefit to the company.

Craig_Haskin
V.P. & Project Manager

Craig Haskin

For more than 25 years, Craig has been with the Irontree family. His great work has contributed to the success and advancement of our operations team. Early in his career, he was able to develop strong relationships with customers that specialized in Job Order Contracting (JOC) and was instrumental in developing Irontree’s JOC portfolio. Craig is a graduate of Phoenix College with an Associate’s in Construction Management and he also completed ABA’s LDF leadership program.

Andy_Willeford
Purchasing Manager

Andy Willeford

Andy started with Irontree in 2017 taking over as the purchasing manager after his predecessor had retired. He took over working with our suppliers and wholesalers and began to build relationships with our partners to help manage cost for the company. Andy has done an excellent job at managing the logistics for all our projects and has been an asset in maintaining our inventory for project efficiency.

Court_Wood
Plumbing Service Superintendent

Court Wood

Court Wood has more than 20 years here at Irontree and for the past 10 years, he has successfully led Irontree's trenchless and service programs. Court brings a remarkably diverse and deep knowledge base of all plumbing systems, especially underground waste piping, and sewer systems. In 2014 he started our Epoxy Rehabilitations Group. First with CIPP, then expanding to include Epoxy Brush Cast and Pipe Patch services. His hard work has allowed Irontree to expand the level of services offered.

Christian_Encines
Project Manager

Christian Encinas

Christian is the newest member of the Irontree family, bringing a 20-year background in the construction industry. He has plumbing experience in the field, in managing prefabrication/production & as a project foreman. Christian has been able to use his construction and plumbing experience to move to a project management position. After all, he comes from a family of construction managers and plumbers. Irontree is excited to welcome Christian aboard and cannot wait to see what he will accomplish.

Jamie_Totland
Administrative / Accounting Assistant

Jamie Totland

Jamie joined the Irontree family while obtaining her degree in Business Administration. Graduating in 2020 from NAU, Jamie has been able to put her studies to use for our accounting department. She began her journey with Irontree just as the laws were changing for Arizona sales tax. She has been able to learn the components of construction accounting and continues to grow in her understanding.