Kristina Blackburn

Gary Mabray has more than 45 years of experience in commercial real estate in Houston and the Gulf Coast region.  As an industrial real estate professional he has particular expertise in warehouse, rail served properties, fabrication facilities, and ship channel sites.  He began his sales career with Texas Industries, selling construction materials, before joining his father, Tom C. Mabray, in the family commercial real estate brokerage business.  During his career, Mr. Mabray has represented a broad range of public and private corporate clients in both industrial and office transactions.

While at Colliers, he has consistently ranked among the company’s top producing brokers, receiving the Top Producer and Deal of the Year Award and ranking as a Top 10 Producer numerous times over the last 10 years.

Walker focuses primarily on industrial real estate sale and lease transactions involving warehouses, manufacturing facilities and land in the greater Houston area. He was named Principal in 2010, and was elected as a Director in 2013. He serves on the firm’s Governance Committee. He also leads the industrial division of the firm, a group comprised of 28 industrial real estate specialists. He has demonstrated consistent leadership in revenue production and has been recognized as a regular top ten performer in Houston. Walker has also achieved revenue performance in the top 10% of all Colliers offices worldwide.

Prior to joining Colliers, he graduated from the Jesse H. Jones Graduate School of Management at Rice University in 2002. While earning an MBA, he worked for FedEx in Hong Kong. Prior to graduate school, Mr. Barnett served for four years on the legislative staff of United States Senator Bill Frist in Washington, DC. 

He graduated from Vanderbilt University in 1996.

Ryan specializes in both Landlord and Tenant representation of industrial space. He has experience in both existing and ground up industrial properties as well as land acquisitions and dispositions. He strives to ensure that his clients exceed their goals and supports all projects from beginning to end.

Ryan joined Colliers in 2013 as an associate on the industrial team. After seven years, Ryan became the youngest Principal in company history. Since joining Colliers, Ryan has completed more than 40 million square feet of industrial transactions and more than 700 acres of land transactions.

Mr. Byrd joined Colliers in 1997 after eight years with Insignia/Paragon Group, Inc. where he served various capacities including Director of Property Management, Director of Corporate Services and Director of Land Division.  Prior to joining Paragon Commercial Group, Inc. in June 1989, Mr. Byrd served as Vice President for Brookhollow Corporation in its Greensboro, North Carolina and Houston, Texas offices.  While Mr. Byrd was with Brookhollow Corporation, his responsibilities included overall marketing, management, construction and planning of Brookhollow’s properties which consisted of office, retail and land developments.  His real estate experience also includes the feasibility analysis, planning and construction of three mixed- use land developments totaling more than 750 acres in three states.  In his 18 years with Colliers, Mr. Byrd has been directly responsible for the marketing, negotiating and closing of more than 425 sales and leasing transactions representing a value in excess of $1 billion dollars.

John specializes in industrial representation for logistics companies, manufacturing and corporate user’s of space.  He works with his clients to execute cost reduction strategies, multi-market transactions, site selection, build to suit projects, disposition of surplus property and overall portfolio management.

John has negotiated more than 800 transactions in his career totaling over One Billion dollars in transaction value. Responsible for assuring the client’s interests are represented, John has saved his clients an estimated 20% - 25% in total occupancy cost, as well as mitigating the client’s risk and exposure throughout each transaction.

Before joining Colliers John was President of Douglas Development Partners.

John also served as the Executive Managing Director of Cushman & Wakefield and Senior Vice President at Transwestern during the course of his career.

Prior to the commencement of his commercial real estate career, John was a second round draft pick in the Major League Draft by the Colorado Rockies.

Trey joined Colliers as an Associate in January 2021. Trey works with John Nicholson in the Industrial and Land Services group. He provides assistance with their clients in cost reduction strategies, site selection, market information, multi market transactions, dispositions and overall portfolio real estate management.

Robert Alinger specializes in the leasing, disposition, acquisition, and site selection of industrial land, industrial, and distribution properties in Houston and the greater gulf coast region. His expertise with site entitlements, new development, and project leasing has established his reputation as a leading service provider to the industrial development community. Robert also has a unique understanding of rail served properties. In the last five years he has completed the sale of 1,800 acres of rail served land and the leasing and disposition of 3.5M square feet of rail served buildings.

Mr. Alinger joined Colliers in 2019, was named Principal in 2020, and elected to the Board of Directors in 2021. In his first three years with Colliers, he completed more than $500 million in transactions and was the 2021 Top Producer in the Houston office during the companies highest grossing year. Since 2016, Robert represented National Property Holdings, a Houston based Industrial Development Firm, in the acquisition of 20 tracts of land, totaling more than 1,550 acres. He facilitated the development and leasing of these business parks, and currently represents their growing portfolio of more than 8.5M square feet of Class A industrial space.

Mr. Alinger is a native Texan and was born in Houston. He began his real estate career in 2006 after graduating from the University of Houston with a Bachelor of Science in Construction Management.

Wes joined Colliers in March 2022 as Senior Vice President with the Industrial Team. Wes specializes in industrial, land, and investment real estate brokerage for the greater Houston markets. He primarily helps businesses, owners, and developers through selling,  leasing, and acquiring distribution, manufacturing, and service-center facilities. He is also heavily involved in build-to-suit and design construct projects, site acquisitions, and investment property sales.

Prior to joining Colliers, Wes worked at Boyd Commercial for almost seven years, where he was a top producer and responsible for more than $200 million in transaction value.

Wes graduated from Miami University with a double business major in Finance and Entrepreneurship. While attending Miami, he was also a captain of the football team, winning both a MAC Championship and bowl game during his time there. Wes, a native Houstonian, is a Strake Jesuit College Preparatory Class of 2009 alumnus.

Mr. Gibson joined Colliers as an associate in 2005 specializing in the areas of corporate representation and brokerage. With over fourteen years experience in commercial real estate, Mr. Gibson has completed hundreds of  transactions including lease transactions, build to suit, design build, land acquisitions, building acquisitions, dispositions, joint ventures and partnership structures.  His clients include institutional property owners, developers, service, distribution & manufacturing companies and high net worth individuals. 

Prior to joining Colliers Mr. Gibson spent five years with KLA-Tencor where he worked as a Project/Sales Engineer responsible for generating and managing domestic and international sales activities of multi-million dollar semiconductor manufacturing equipment. 

Prior to joining KLA-Tencor Mr. Gibson served in the US Navy from 1995 to 2000 as a Submarine Warfare Officer.  During his service aboard the USS Archerfish Mr. Gibson acted as the ship’s Reactor Controls and Electrical Officer where he was responsible for the operation, maintenance and repair of all nuclear reactor control, protective, and monitoring systems, in addition to all electrical generation and distribution equipment.

Upon completing his duties on the USS Archerfish Mr. Gibson was assigned to the USS Henry M. Jackson where he acted as the ship’s Main Propulsion Officer responsible for the operation, maintenance and repair of all primary and secondary systems of a nuclear power plant including steam systems, seawater systems, chemistry, distilling plants, and lube oil.