Through the strength and expertise of our leaders, Hasen Global has emerged as a front-runner in change, innovation, and progress in the construction industry. Our most significant competitive edge is our employees’ expertise, training, and international experience.
David Hasenzahl
David Hasenzahl, a Partner, is responsible for setting corporate control standards and procedures. David has worked in the construction industry for over 30 years. Prior to founding HASEN Design Build & Development in 2005, David also worked for nationally known companies such as Tellepsen Corporation, Morrison Knudsen, Morley Builders, and Haws & Tingle. David has been named to Engineering News Records’ Top 20 under 40 and is a graduate of the Leadership Class of Fort Worth and participates in various charities throughout the city. David currently presides on the board of directors of the DBIA-Design Build Institute of America Southwest. David is also Chairman of the House and Building committee at Colonial Country Club, with responsibilities of overseeing an historic renovation and remodel of the almost 100-year-old golf club, and PGA tour stop.
David graduated with degrees in Business and Psychology from Southern Methodist University and earned his master’s degree from the Viterbi School of Engineering at the University of Southern California. He lives in Fort Worth, Texas, where he is a leader in both his work and community, as well as an adoring husband and father.
Blake Freeman
Blake Freeman is a Partner who oversees the construction strategy and day-to-day operations of our projects. Blake has extensive experience in both domestic and international construction, as well as real estate development. Prior to founding Hasen Global, Blake served as a Project Executive for top Engineering and Construction firms, including Michael Baker International, KS International, and AECOM Technology Corp (formerly URS). He also worked with the General Contractor Haws & Tingle in Fort Worth, Texas.
Blake has successfully planned and executed projects ranging from $8.5 million to over $100 million in the United States, Europe, Africa, and the Middle East for clients such as the U.S. Department of State and the U.S. Department of Defense. In the residential sector, Blake developed Terrace 9 Condominiums in Austin’s central business district and Madrone Canyon Estates in the Texas Hill Country.
Blake graduated from Texas A&M University with a B.S. in Construction Science and a Master’s in Land Economics and Real Estate. He is a LEED Accredited Professional and is U.S. Army Corps of Engineers QCM certified. Blake resides in New Braunfels, Texas, where he enjoys life with his wife and children.
Walter Hasenzahl
Walter Hasenzahl, a Partner, directs Hasen Global’s program management office in Frederick, MD. He oversees preconstruction operations, including estimating, procurement, and logistics, and is also in charge of project execution. Walter began his construction career at Clark Construction in Bethesda, Maryland, where he spent nine years working with Government(NAVFAC & USACE) and private clients. During this time, he completed several projects valued at over $700 million, including a new hangar and air traffic control tower for the West Virginia Air National Guard ($65M), the Headquarters for the United States Institute of Peace ($100M), and the DC USA Mall in Washington DC ($93M).
In 2013, Walter joined Michael Baker International as a Project Executive and began overseeing projects involving overseas construction. At Michael Baker, he managed multiple projects in Europe, Africa, the Middle East, South America, and the Caribbean for the United States Corp of Engineers and the U.S. State Department’s Overseas Building Operations.
Walter graduated from Auburn University with a Bachelor’s degree in Finance and resides in Maryland with his wife and children.