LINEUP
A WINNING
THE CYMCOR TEAM
Providing professional development management services requires technical expertise, project management acumen, solid industry relationships, and an understanding of design and construction best practices. Our team stands apart with real-world experience and customer-focused service.

George Cooley
Co-Founder
Dallas
Inspired by his West Texas construction family, George worked in the commercial real estate industry throughout his career.
After working for several architecture firms, he joined the Vantage Companies in Dallas, Texas. There he gained experience managing the design and construction of a large portfolio of commercial and industrial projects. In that role, he was responsible for managing a variety of building types across a large geographic network of corporate divisions.
In 2001, together with Don Hodges, George purchased Vantage Construction Management, Inc. and renamed the company CYMCOR. They commenced operations on January 1, 2002.
George is a member of the American Institute of Architects and the Construction Management Association of America.
EDUCATION
Bachelor of Architecture, Texas Tech University
CERTIFICATIONS:
Registered Architect Texas #5571
NCARB Certification #17093
AFFILIATIONS:
Member, American Institute of Architects
Member, Texas Society of Architects
Member, Construction Management Association of America
Past Member, Building Code Board of Appeals in Richardson, Texas,
Past Member, Building and Standards Commission in McKinney, Texas
Past Member, Board of Directors of North Collin County Habitat for Humanity
Don Hodges
Managing Partner /
Founder / Chairman
Dallas
With a career in the construction and real estate that spans 35+ years, Don Hodges has held a range of positions including field engineer, estimator, project manager, and managing partner. He gained experience in commercial and industrial construction at general contractors and commercial real estate developers with national exposure, including Vantage Construction Management.
During his career, Don oversaw an in-house general construction division and provided executive leadership for the development of projects such as Fujitsu America and Toyota Arizona Proving Ground along with other projects covering six different states. In 2001, Hodges and a longtime associate purchased Vantage Construction Management and rebranded the entity as CYMCOR, Inc. a professional program management and construction management group. CYMCOR has represented multiple owners overseeing development or providing consulting for projects values totaling over $1 billion dollars.
EDUCATION:
Bachelor of Science – Construction Technology
Texas A&M University-Commerce
REGISTRATION:
Texas Real Estate Sales License #0417452
AFFILIATIONS:
Member, Construction Management Association of America
Charter Member, Dallas Committee on High Rise Buildings
AWARDS:
Citation Award, Dallas AIA
Outstanding Young Men of America
Distinguished Service Award, Pi Kappa Alpha
Alumni Ambassador – Texas A&M-Commerce
COMMUNITY SERVICE:
Board of Directors of Coppell Economic Development Corporation, Collinsworth Development, and currently serves on the Board of Directors for Hugs Café, and PiKA Housing Corporation. In addition he has also served as a Project Leader for North Collin County Habitat for Humanity.
Marc Robertson
Managing Partner / President
Dallas
Over a 30-year career in the real estate and construction industry, Marc has held several leadership positions for large general contractors in the Dallas / Fort Worth area, including Field Operations, Preconstruction, and most recently Operations Manager for The Beck Group of Dallas.
His experience encompasses a large cross-section of the commercial real estate industry, including education, industrial and manufacturing, faith based, healthcare, retail, high rise office, and mission critical. In August of 2020, Marc purchased CYMCOR shares from founder George Cooley. Together and in partnership with co-owner Don Hodges, Marc oversees the daily operations of CYMCOR and focuses on strategic planning and new business development for the company.
EDUCATION
Bachelor of Science – Physics / Chemistry
Eureka College
Bachelor of Engineering – BE, Civil Engineering / Construction
Southern Illinois University Edwardsville
Cornell Certificate Program- Commercial Real Estate
Cornell University
AFFILIATIONS:
Board of Directors, Treasurer
Hugs Café, Inc
Board of Directors, Treasure
Eldorado Commons
Shelby Proehl
Managing Partner /
Vice President
Dallas
With 20 years of industry experience, Shelby has overseen all phases of multimillion-dollar construction projects, managing large teams in commercial construction. He has successfully completed high-profile projects across a range of sectors, including high-rise office buildings, faith-based projects, aviation, hospitality, mission-critical facilities, museums and cultural facilities, and manufacturing.
His expertise spans preconstruction and construction services, cost-saving strategies, project budgeting, scheduling, and ensuring site safety.
In January of 2024, Shelby purchased CYMCOR shares from founder Don Hodges joining Don and Marc as Managing Partners. Currently Shelby focuses on the operations management of CYMCOR.
EDUCATION
Bachelor of Science – Construction Science & Management
Kansas State University
CERTIFICATION:
LEED AP BD+C
Matt Murray
Managing Partner /
Project Director
Dallas
As the construction data analytics specialist at CYMCOR, Matt specializes in estimating and cost control with a strong emphasis on visually intelligent communication. With 19 years of experience, he has built a robust background in preconstruction, estimating, contracting, and procurement.
Previously, Matt was the Director of Preconstruction for a national general contractor. He is passionate about improving initial budgets and ensuring alignment with owners’ project requirements. Whether utilizing Integrated, IPD or CMAR delivery methods, Matt is committed to helping owners achieve their ideal balance of quality, cost, and schedule.
Preston Rock
Managing Partner /
Project Director
Dallas
With more than 15 years of experience in the construction industry, Preston knows what it takes to make a project successful. He is strategic, team-oriented, and helps his clients by developing a plan, establishing accountability, and holding teams to a high standard of performance. As a Project Director at CYMCOR, Preston oversees the company’s operations in the Western United States.
Preston started his career as general contractor and has worked for several large firms in the Dallas-Fort Worth metropolitan area. He has held a range of positions including field engineer, project engineer, estimator, and senior project manager. Preston’s experience spans industrial, upscale commercial / hospitality, multifamily, healthcare, and mission critical market segments. As a general contractor, he managed over 50 projects from concept to completion.
EDUCATION
Bachelor of Science in Construction Science and Minor in Business Administration
Texas A&M University
Brian Gore
Controller
Dallas
Brian Gore is an innovative and results-driven finance Leader with extensive experience promoting institutional effectiveness through exceptional platform development, forecasting, customer acquisition, and cross-functional team leadership. He is adept at positioning high-growth companies for sustained success, leveraging staff training, leadership development, and mentoring programs to foster a culture of ownership.
Brian has spearheaded the transformation and turnaround of financial operations in various businesses through innovation, automation, coordination, and strategic planning. He has orchestrated corporate acquisitions, developed financial technology platforms, and revamped business structures. A proven leader, Brian has served as a senior executive in several companies, maximizing their productivity and efficiency, and exceeding their expectations.
EDUCATION
Bachelor of Accounting and Information Systems – Hankamer College of Business
Baylor University
Steven Bishop
Development Manager
Dallas
Over his 12-year career in the construction industry, Steven gained experience in both residential and commercial sectors working as a Construction Manager, Project Manager, and Superintendent. His diverse expertise and hands-on leadership make him a valuable asset in any construction endeavor.
In his role as a Development Manager at CYMCOR, he specializes in cost management. Before this role, he spent four years building homes in Austin, TX, as a Construction Manager. He also dedicated eight years to commercial construction with a focus on job order contracts (JOC) and master agreements for the City of Dallas, excelling in multiple roles, including Project Manager / Project Leader, Superintendent, and Estimator.
As a proud graduate of Texas A&M University, he holds a Bachelor of Science in Construction Science and a Minor in Business.
EDUCATION
Bachelor of Science in Construction Science and Minor in Business Administration
Texas A&M University
Joseph Buehring
Development Manager
Austin
Joseph joined the CYMCOR team after spending the last few years working at a $50 Billion semiconductor project in Taylor, Texas, overseeing Gas, Chemical System Commissioning and later as the Owner’s Representative of Office Building Tenant Improvement Construction. He has previously worked in project support areas of safety, training, procurement/budget, maintenance planning/management, commissioning planning, project development/management, space management, and AV installation/operations. Earlier in his career he worked for 27 years in submarine nuclear power plant operations/maintenance for the U.S. Navy.
EDUCATION:
Bachelor of Science degree in Business Management Studies
University of Maryland Global Campus
CERTIFICATIONS:
Six Sigma Yellow Belt
Senior Enlisted Academy Certificate of Completion
US Navy Senior Enlisted Academy
Quality Assurance Supervisor
Navy Trident Training Facility
Chadd Cassell
Development Manager
Dallas
As an experienced Project Controls Manager, Chadd has a strong background in cost management and project scheduling. His areas of expertise include budgeting, forecasting, and earned value management.
In his role as a Development Manager at CYMCOR, Chadd has proven his ability to deliver quality construction projects and meet client budget and schedule expectations.
Chadd previously served in the U.S. Air Force, where he gained leadership, discipline, and problem-solving skills to effectively manage complex projects and teams.
EDUCATION
Bachelor’s Degree in Accounting
Lamar University
AFFILIATIONS:
U.S. Air Force Veteran
Mitchell Cox, CCM
Development Manager
Richmond
Mitchell has almost 10 years of dedicated experience advocating for property owners, managers, and developers within the construction and commercial real estate sectors. He has successfully served clients across both private and government sectors, including local and federal projects. His expertise spans a wide range of project types, including new construction and renovations, with a focus on institutional, industrial, office, and retail developments. At CYMCOR, Mitchell has taken on a key role in cost management, overseeing multiple industrial projects in collaboration with a national developer.
Mitchell began his career in commercial property management at a regional real estate firm, and he later transitioned into construction management. He continued his career at a regional construction management firm, providing on-site project management for a local school district’s new construction program. His comprehensive experience and attention to detail ensure successful project outcomes and client satisfaction.
EDUCATION
Bachelor of Science – Real Estate, Minor in Leadership Studies
Virginia Tech
Certified Construction Manager
Construction Management Association of America
OSHA 10-Hour Construction
ClickSafety
AFFILIATIONS:
Alumnus
Virginia Tech Corps of Cadets
Christian Maier, CMIT
Development Manager
Richmond
As Developmental Manager, Christian Maier brings experience supporting as an owner’s representative on a variety of vertical and horizontal construction projects. He has experience in project communication, contracting workflows, submittals, and stakeholder coordination, with a detail-oriented approach that helps keep work organized and aligned. Christian has supported clients across both private and government sectors, providing the same level of responsiveness, professionalism, and care to each engagement. Known for building strong working relationships and staying responsive to evolving project needs, Christian works closely with colleagues, partners, and clients to support successful outcomes. At CYMCOR, Christian has taken on a key role in cost management, overseeing multiple industrial projects in collaboration with a national developer.
Prior to CYMCOR, Christian began his career as an inspector for a regional geo-technical firm, gaining hands-on experience focused on quality control, field documentation, and verifying that work was completed in accordance with project requirements. He continued his construction career at a regional construction management firm, providing on-site project management for local school and government new construction projects. These roles gave him a practical understanding of construction operations and reinforced his commitment to accuracy, accountability, consistent project delivery, and client satisfaction.
EDUCATION
Bachelor of Science in Energy Land Management and Minor in Business Administration
West Virginia University
CERTIFICATIONS
Construction Manager-in-Training
Construction Management Association of America
OSHA 30-Hour Construction
Robin Fugiel
Financial/Office Manager
Dallas
Robin Fugiel is an adaptable professional with expertise managing a full range of administrative and financial activities, including payroll, coordinating staff assignments and human resources.
Her strengths include automating processes and streamlining organizational systems to ensure efficient workflow and high productivity. Robin’s professional experience spans a variety of industries, including churches, schools, corporations, and the U.S. Military.
She is proficient in a variety of software programs used for monitoring bank reconciliations, updating spreadsheets, assisting with accounts receivable, and ensuring invoicing accuracy. She is dedicated to building positive relationships with staff and members of the community.
EDUCATION
Master of Business Coursework in Law/Ethics and International Business
Nova Southeastern University
Bachelor of Business Administration in Management and Finance
Abilene Christian University
CERTIFICATIONS AND TRAINING:
- American Association of Notaries Certified
- Managerial Communication Certificate
- Customer Care University Certified
- Functional Area Record Manager
- Conflict Resolution
Jamie Keogh
Development Manager
Atlanta
With almost 15 years in commercial construction, Jamie’s experience spans field operations, estimating, project management, and technical consulting leading teams as a subcontractor, general contractor, and consultant. He gained experience through successful project execution for high profile clients in diverse project types, including high-rise office, education, healthcare, laboratory, manufacturing facilities, state and local government, and the U.S. Department of Defense.
Known for his meticulous attention to detail and proactive problem-solving approach, Jamie has a proven track record of implementing process improvements that drive efficiency and client satisfaction. .
EDUCATION
Biomedical Engineering; 95 credit hours
Georgia Institute of Technology, Atlanta, GA
NOTABLE PROJECTS:
Boston Consulting Group
Equifax
BMW North America
JP Morgan Chase
Bank of America
SunTrust Bank
COX Enterprises
King & Spalding
Jones Day
DLA Piper
U.S. Central Command Headquarters
U.S. Air Force Central Command Headquarters
Defense Information Systems Agency Headquarters
Duke Energy
Georgia Power
Georgia Pacific
Koch Industries
Emory University
Georgia Tech University
Lowe’s Home Improvement Headquarters
Chick-fil-A Headquarters
CNN, Univision
Centers for Disease Control
City of Atlanta.
Matt Middleton
Development Manager
Frisco
With nearly 15 years in construction, Matt’s experience spans residential and commercial sectors. Throughout his career, he has demonstrated an ability to implement system and process improvements that help streamline project execution and increase cost efficiency. Matt is known for his consistent, proactive approach to problem solving and careful attention to detail.
Prior to joining CYMCOR, Matt completed his Master of Business Administration degree and gained experience working for both general and specialty contractors. He holds a Google Project Management Certificate, Qualys Vulnerability Management Certification, and Project Management Professional Certification.
Hooman Rouhi
Development Manager
Richmond
With over 13 years of diverse experience in the construction industry, Hooman has developed a deep expertise in managing projects across the commercial, residential, and federal government sectors. As a seasoned project manager, he has played a pivotal role in pre-construction and construction services, project budgeting, scheduling, and safety management.
Currently, serving as Development Manager at Cymcor, Hooman specializes in cost management, leveraging his extensive background to ensure projects are delivered efficiently and within budget. His strong technical foundation and his ability to navigate complex project requirements make him a valuable asset to the team and clients.
EDUCATION:
Bachelor of Science – Civil Engineering, Minor in Green Engineering
Virginia Polytechnic Institute and State University
CERTIFICATIONS:
USACE Construction Quality Management for Contractors
OSHA 30-Hour Certification
Certified Construction Manager Certification #42051
Brian Smith
Construction Manager
Dallas
After working over 15 years in the field of professional accounting, Brian began pursuing several successful entrepreneurial endeavors that ignited a passion for the construction business. In 2014, he began investing in and renovating residential properties and developing his project management skills. Since 2017, Brian completed more than 200 projects in the residential construction space. In 2023, he joined the Cymcor team to oversee Cymcor Construction, where he utilizes his experience in business and construction to develop foundational systems and processes, build exceptional vendor relationships and establish a network of reputable, talented subcontractors. Since inception in 2023, Cymcor Construction has completed a variety of small commercial and unique residential projects. In his personal time, Mr. Smith dedicates time volunteering in the McKinney community, especially with the Hugs Café organization, a non-profit whose mission is to equip adults with special needs with job skills and employment opportunities.
Jeff Peppers
Development Manager
Dallas
Jeff Peppers is a seasoned construction and development professional with over a decade of leadership experience across commercial, industrial, and civil projects nationwide. His career has included progressive roles as Field Engineer, Project Manager, Construction Manager, and Development Manager, providing him with a comprehensive understanding of the full project development lifecycle.
He has successfully delivered multimillion-dollar projects totaling over $600 million, with expertise in site due diligence and design, contract negotiation and execution, general contractor oversight, consultant coordination, and the integration of sustainable building practices. Jeff’s background spans both horizontal and vertical construction, with hands-on experience as a general contractor and in managing construction for national real estate portfolios. He combines technical expertise with strong leadership and collaboration skills to drive efficiency and ensure project success.
EDUCATION
Bachelor of Science in Construction Management Technology from Oklahoma State University.
CERTIFICATIONS:
OSHA 30
AFFILIATIONS:
Member, NAIOP Developing Leaders – North Texas Chapter
Member, BOMA Fort Worth
Greg Brock, P.E.
Power Consultant
Dallas
Greg Brock is a Power Consultant for CYMCOR. In this role, he assists clients by working with electric utility companies to determine the electrical power available for their proposed data center sites.
Brock is a Licensed Professional Engineer and Master Electrician in Texas with over 45 years of experience in electrical engineering, construction management, and MEP systems. Greg also serves on the board of the Illuminating Engineering Society’s Dallas Section.
Earlier in his career, Greg spent 26 years at The Beck Group as Director of MEP Services. In this role, he led multidisciplinary teams and managed major projects across healthcare, data centers, laboratories, and corporate campuses, including work for AT&T, RadioShack, Fidelity Investments, and the University of Texas.
Greg’s background includes numerous leadership roles in both engineering consulting and electrical contracting. He is known for his technical expertise, project leadership, and his commitment to high-quality, cost-effective electrical solutions.
EDUCATION:
Bachelor of Science in Electrical Engineering
The University of Texas at Austin
AFFILIATIONS:
Licensed Professional Engineer (PE) in the State of Texas
Licensed Master Electrician in the State of Texas
Board Member – Dallas Section of the Illuminating Engineering Society (IES)
Miguel Vargas
Development Manager
Austin
Miguel Vargas brings over 17 years of experience in the electrical industry, with a strong background in quality management and industrial construction. Most recently with Samsung E&C America at the Samsung Taylor Semiconductor project, Miguel supported the Quality Management team by overseeing inspections, coordinating contractors, and ensuring compliance with NEC standards and safety requirements.
Before joining SECAI, he worked at Samsung Austin Semiconductor as a Senior Electrical Technician, specializing in low- and medium-voltage systems, switchgear, UPS installations, VFDs, and heat trace systems. His career began with JMEG Electrical Contractors, where he gained hands-on experience in large-scale industrial and commercial projects.
LICENSES & CERTIFICATION
Licensed as a Master Electrician
OSHA 10 Certification
NFPA 70E Certification
Jay Wieland
Development Manager
RICHMOND
Jay Wieland has experience supporting both owner’s representative and contractor teams on a range of civil and vertical construction projects. His background includes permitting, coordination with design teams and inspectors, and managing projects from preconstruction through closeout.
Prior to joining CYMCOR, Jay worked for a real estate developer where he supported large ground-up projects, including a $30 million parking garage and a $100 million multi-use facility. In this role, he managed the general contractor through construction and closeout while leading permitting and coordination efforts, successfully obtaining approvals for each phase prior to construction start. He later worked with a civil contractor supporting infrastructure projects, with a focus on BIM coordination, wet utilities, and production tracking, working closely with field teams, third-party inspectors, and regulatory agencies to maintain compliance and keep projects moving.
EDUCATION:
Bachelor of Science – Building Science
Auburn University
CERTIFICATION:
OSHA 30-Hour Certification
George Cooley
Co-Founder
Don Hodges
Managing Partner /
Founder / Chairman
Marc Robertson
Managing Partner / President
Shelby Proehl
Managing Partner /
Vice President
Matt Murray
Managing Partner /
Project Director
Preston Rock
Managing Partner /
Project Director
Brian Gore
Controller
Steven Bishop
Development Manager
Joseph Buehring
Development Manager
Chadd Cassell
Development Manager
Mitchell Cox, CCM
Development Manager
Christian Maier, CMIT
Development Manager
Robin Fugiel
Financial/Office Manager
Jamie Keogh
Development Manager
Matt Middleton
Development Manager
Hooman Rouhi
Development Manager
Brian Smith
Construction Manager
Jeff Peppers
Development Manager
Greg Brock, P.E.
Power Consultant
Miguel Vargas
Development Manager
Jay Wieland
Development Manager
GROW WITH US.
CYMCOR offers real estate career opportunities across the country. We value experience, expertise and a passion to diligently serve our clients.
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Assistant Development Manager
Development Manager
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WE ARE CYMCOR.
The professionals you need to navigate
the design and construction process.
