Randy Birdwell serves as an advisor for Flintrock Builders. He has 46 years of high-volume production building experience including 30 years as Company Owner, President, CEO or Chairman. His award winning company, Emerald Homes, was sold to DHI, which led to the nationalization of the Emerald brand. While at DHI, Birdwell managed $2.3 billion in assets – 12 housing divisions, which closed 23,000 homes in one year. He is the past president of the Greater Houston Builders Association and the Texas Association of Builders and a Senior Life Delegate and former National Vice President of NAHB. Randy was a national recognized educator, Professor and Senior Fellow at Texas A&M University. Mr. Birdwell has also been inducted into the Housing Hall of Honor in November 2024. X

Chris Doose, CEO, is a fourth-generation entrepreneur and a third-generation Central Texas based home builder & developer. After graduating from St. Edwards University with a B.A. in Business, Chris excelled at positions in home building and construction. These opportunities provided Chris insight into the intricacies of everything from single & multi-family homes, to commercial development, and ultimately the establishment of Flintrock Builders. Alongside his family, Chris is an award-winning home builder whose core is to provide quality at an attainable price. “Our passion for customers, strength in craftsmanship, interior design, and years of knowledge is what sets us apart. We push the envelope on creating beautiful and unique homes that will sustain a lifetime of memories. I am very proud of our staff and appreciate them all for their hard work in achieving our goals. We are family here.” – Chris X

Desmond Graham serves as Chief Operating Officer of Flintrock Builders, where he oversees the company’s day-to-day operations with a focus on enhancing the client experience, driving strategic growth, ensuring operational excellence, and making a meaningful impact in the communities Flintrock serves. Desmond joined Flintrock in December 2019 as Vice President of Sales and Marketing. His leadership and dedication quickly propelled him into the role of Division President in December 2023, and in April 2025, he was named Chief Operating Officer. Born in Dothan, Alabama, Desmond has proudly called Central Texas home since 1993, when his father, a U.S. Army officer, relocated the family to Copperas Cove. He earned a bachelor's degree in biology from The University of Texas at Austin and began his career in the wireless industry, advancing to the position of Area Sales Manager. Motivated by a passion for service and a strong connection to his community, Desmond transitioned into real estate after returning to the Killeen area—supporting his family’s real estate business and eventually launching his own brokerage. Over the past 15+ years, he has earned a reputation for leadership, integrity, and delivering results. Desmond has been instrumental in shaping Flintrock’s culture and long-term vision, ensuring the company continues to deliver exceptional value to its homeowners, partners, and the broader Central Texas community. X

Cody Sulak, V.P. of Strategy, considers himself a “small town” guy from the city of West, Texas. Cody strives for perfection and settles for excellence. As a Certified Public Accountant and Chartered Global Management Accountant, his passion for excellence is never overrated. He has over 6 years of experience as a Chief Financial Officer of a multi-location auto dealership group and he has also consolidated three separate accounting offices into one. Cody builds best practices while maintaining his faith as well as being a farmer on his family farm. “I am so blessed to work for Flintrock and be surrounded by owners that are passionate about success. I am here to strengthen the financial & internal controls and set the stage for the next phase of growth. The sky is the limit for Flintrock Builders.” – Cody X

Craig Langford, V.P. of Development, grew up in Killeen, Texas and moved to San Antonio in 2008 to attend The University Texas at San Antonio graduating with a bachelor’s degree in Real Estate Finance and Development. He later attended St. Mary’s School of Law where he obtained his law degree in 2016. After being admitted to the bar he went to work in private practice at a law firm in Victoria, Texas from 2016-2021. Craig is driven by his desire to be successful, well-rounded, dependable and a respected person in the community. He believes that everyone should take pride in their work and perform to the best of their abilities. “What helped me decide to come to Flintrock is the way they treat their employees and the pride they take in their work. You can see it from the top down. It is a company that practices what it preaches, and it is refreshing to have a company value their people as much as Flintrock does.” – Craig X

Jon Enterkin brings a wealth of experience and dedication to his role as Flintrock Builders’ Director of Capital Markets. With a BBA in Finance from Southern Methodist University and an MBA from the University of Texas, Jon combines deep financial expertise with exceptional business acumen. Having grown up in Copperas Cove as part of a military family, Jon understands the importance of discipline, commitment, and community. As Flintrock's third employee, he has held a variety of pivotal roles, including Superintendent, Quality Assurance Manager, Warranty Manager, Purchasing Manager, Comptroller, and Government Affairs Manager, before stepping into his current position. Jon’s passion lies in fostering transparent communication between Flintrock and its investors. He thrives on building trust, conveying the company’s vision, and nurturing relationships that drive growth and success. His key strengths include a people-first approach, robust business knowledge, and a deep understanding of finance. Jon is committed to ensuring Flintrock’s continued excellence and strong investor partnerships, helping propel the company to new heights. X