CASTLE CONTRACTING - Key Persons


Bobby Humphrey

Humphrey's introduction to Castle came in 2010 when he began working on the patient care tower at University Hospital on the campus of the University of Missouri-Columbia.

Brian Carlson

Job Titles:
  • Project Director
As a project director and director of St. Louis markets, Brian's focus is on the delivery of civil construction projects and pursuits direct to owners/developers as well as local general contractors. His primary duties include design-build and other alternative delivery opportunities, including leveraging Castle's unique expertise in self-performing civil site work from concept through construction and closeout. Brian joined Castle in 2016 after 14 years managing large-scale highway projects. He is a Designated Design-Build Professional, a member of the Design-Build Institute of America and a Master Drainlayer in the city of St. Louis and St. Louis County.

Christie Brinkman

Job Titles:
  • Director Design - Build
As director of design-build at Castle, Christie leads efforts to develop new business opportunities for Castle's design-build practice while overseeing the design team and projects. She creates value for every client by engaging them early in the civil design and construction process, listening to their challenges and leveraging her extensive network to find the right team and deliver solutions that save costs and reduce risk. Christie is an active member of numerous industry organizations including Commercial Real Estate Women, Urban Land Institute, St. Louis Council of Construction Consumers and Construction Forum STL. In her community, she serves on the board of directors for Home Sweet Home in St. Louis and volunteers for multiple organizations including LifeWise STL, Women's Safe House and SSM Cardinal Glennon Children's Hospital.

Dan O'Neal

Job Titles:
  • Project Director
As project director, Dan leads Castle teams in the execution of large civil construction projects. He joined Castle after 18 years with sister company, McCarthy Building Companies, Inc. He has worked throughout the organization from project engineer to superintendent and project manager, while playing a key role in projects worth nearly $2 billion. Dan has been involved with a variety of complex projects, including those located in dense, urban environments for both private and public sector clients. His extensive experience includes bio-safety research laboratories, aquariums, museums, hospitals, public transportation and pharmaceutical facilities.

David Denny

Job Titles:
  • Director Field Operations at Castle
As Director Field Operations at Castle, David oversees and communicates daily with project teams. With more than two decades of industry experience, he is responsible for training and development of superintendents, foremen, field employees and internal apprentices. David also created a foreman development program to standardize Castle's field management and train future project leaders; he also partners with the AGC Laborers Training Center and Local 513 Operating Engineers Training Center to optimize our apprenticeship training program. David has prior experience in safety and risk and is a Master Drain Layer in St. Louis City and County.

Dustin Moyer

Job Titles:
  • Project Manager
Dustin was the first employee hired to start Castle's Omaha office in May 2019. Since then, he has simultaneously built relationships with clients, won work and managed projects. He has also successfully assembled a dedicated Omaha workforce. Through his efforts, Castle gained momentum in the Omaha market as a site utility and earthwork contractor as well as an exceptional civil and excavation partner for MEP clients. While Dustin wears many hats, he is primarily responsible for estimating, planning and managing projects. As a lifelong Omaha resident, he is passionate about executing impactful projects for the community.

Jason Mrozek

Job Titles:
  • Vice President Operations
Jason is responsible for overseeing all Castle operations in Southern California. He spent more than 16 years in healthcare and higher education construction with McCarthy Building Companies, Inc., before its sister company Castle Contracting acquired Paul Hansen Equipment, a respected 50-year-old underground utility contractor in San Diego, in 2018. Since then, he has been growing comprehensive civil and sitework services for the in-demand market. Jason is responsible for establishing strong relationships with clients and partners, growth of the business into new markets, expansion of work categories, and oversight of all aspects of the company. He holds a LEED AP certification and previously served eight years in the United States Army Reserve. Jason has served on the board of directors of Boys & Girls Clubs of Greater San Diego since 2014, as well as on the Labor Relations Committee for AGC San Diego since 2017, and is a member of the American Subcontractors Association.

Jeremy Wood

Job Titles:
  • Project Director

Kurt Dulle

Job Titles:
  • Project Director
Kurt is responsible for overall operations of the Omaha office. With more than 30 years of experience in self-perform work in the field, preconstruction and project management, he has implemented some of Castle's most complex MEP and utility projects. He leverages his expertise to lead and mentor his growing team while also focusing on developing strong and long-lasting relationships with Omaha clients and trade partners.

Mike Pranger

Job Titles:
  • Vice President Operations
As the executive leader of Castle, Mike is responsible for overseeing all management and operations for the company. With a commitment to deliver an exceptional experience for clients on every project, he brings more than two decades of experience to his wide variety of roles, including carpenter apprentice and assistant superintendent to estimating, preconstruction and project management. Mike has an extensive background in both the building and civil sectors. A Castle team member since 2005, he previously worked for eight years with McCarthy Building Companies, Inc. He is a member of Associated General Contractors of Missouri, the St. Louis Council of Construction Consumers and the American Subcontractors Association.

Norma Zepeda

Job Titles:
  • from Receptionist to Project Engineer
Over the years Zepeda went from receptionist to administrative assistant, to estimating coordinator, and then to the role of project coordinator. Norma Zepeda started her journey 19 years ago as a receptionist for a small general contractor and now has worked h… https://t.co/5rF1xxCta9

Rich Mueller

Job Titles:
  • Chief
  • Estimator
Rich collaborates with Castle project directors and the estimating team to deliver comprehensive, accurate estimates for clients. Bringing two decades of industry experience with a variety of delivery methods ranging from GMP to hard bid, his deep understanding of constructability helps drives accountability for Castle as a project partner and leads to frequent value engineering ideas to improve cost certainty for clients. Rich serves on the McCarthy National Preconstruction Steering Committee - Specialty Markets/Self-Perform Group and has a Master Drainlayer's License in St. Louis County and the city of St. Louis.

Sherri Cavaletti

Job Titles:
  • Director of Project Accounting
Since 2005, Sherri has been responsible for overseeing daily accounting operations for all Castle projects, including accounts receivable, accounts payable, payroll and billing. Collaborating with project staff, she supports accounting, billing, forecasting, subcontract billing, contract review, change order management, and close-out. Sherri is an integral leader in client and supplier partnerships, making sure they have an exceptional client experience through quality financial processes and communication. As a champion of employee engagement, she is passionate about making sure Castle is a great place to work. Sherri is a member of Construction Financial Management Association.

Spencer Berenz

Growing up in a military family taught Spencer Berenz how to be nimble, resourceful and resilient.

Steve Wood

Job Titles:
  • Estimating Manager
Steve leads the estimating team for Castle projects in Southern California. He collaborates with project management and craft leadership in the field to work through design development and preconstruction and develops accurate estimates and schedules that provide clients with reliable civil solutions. He brings a diverse skill set to mentor his team, including experience in education, sales, management, organizational development and logistics controls, in addition to managing utility construction for more than a decade. Steve is a certified Project Management Professional (PMP) and has led the building of significant infrastructure projects across California, Arizona and Nevada.

Trey Patterson

Job Titles:
  • Senior Regional Safety Manager
Trey oversees and manages the safety program for Castle Contracting. His 15 years of safety experience includes nearly 11 years at McCarthy Building Companies, Inc., Castle's sister company. Throughout his career, Trey has focused on developing, managing and executing safety and safety education programs for heavy industrial facilities, dense urban project sites, heavy self-perform work and other larger, complex sites. Trey is licensed as a Construction Health and Safety Technician (CHST), an Occupational Hygiene and Safety Technician (OHST) and a Certified Safety Professional (CSP). He also is a member of the American Society of Safety Engineers.