GSA ContractHolder No transparent

GSA Contract

Tierra has held a General Services Administration (GSA) contract since November 2006. The GSA contract program was designed to provide discount resources to all GSA Federal agencies, as well as State and local governments, and to allow agencies to purchase services directly from pre-qualified firms. Tierra’s current GSA Federal Acquisition Professional Services Schedule Contract was recently granted an extension until 2021.

    • Tierra's GSA Professional Services Schedule (PSS) Contract No.: GS-10F-0038T
    • GSA SINs: 899-1 and 899-1RC Environmental Consulting Services, 899-7 and 899-7RC GIS Services
    • GSA Classification: Small Business, Woman Owned (WOSB)
    • DUNS No.: 622942282
    • Cage Code: 1ZK08

Federal Contracting

Tierra offers a full range of right of way, environmental, cultural resources, and GIS mapping services. Over the past 26 years, we have worked with various local, State, and Federal agencies to help them move quickly and efficiently through the permitting and project development process. 

    • Tierra's Classifications:
      • Minority-Owned Business
      • Self-Certified Small Disadvantaged Business
      • Woman-Owned Small Business
      • Woman-Owned Business
    • Tierra's NAICS Codes:
      • 115310: Support Activities for Forestry
      • 531210: Offices of Real Estate Agents and Brokers
      • 531390: Other Activities Related to Real Estate
      • 541191: Title Abstract Settlement Offices
      • 541360: Geophysical Surveying and Mapping
      • 541370: Surveying and Mapping (except Geophysical)
      • 541611: Administrative Management and General Management Consulting
      • 541618: Other Management Consulting Services
      • 541620: Environmental Consulting Services
      • 541690: Other Scientific and Technical Consulting Services
      • 541720: Research and Development in the Social Sciences and Humanities
      • 541990: All Other Professional, Scientific, and Technical Services
      • 561320: Temporary Help Services


Diverse Supplier Teaming Partners

Tierra is proud to partner with small and disadvantaged businesses of all types and is constantly seeking diverse supplier resources to help meet our clients' needs. We employ various outreach efforts throughout the year to ensure qualified small businesses have the opportunity to compete for procurements, including attendance at industry tradeshows and conferences, review of the Small Business Administration's Dynamic Small Business Search database, reference to small business directories, and advertising through local trade publications and newsletters. 

If you are a small or disadvantaged business enterprise seeking teaming opportunities, we want to hear from you! You can contact us by This email address is being protected from spambots. You need JavaScript enabled to view it. or by calling us at (800) 887-0847. 

For more information about our GSA contract,
our Federal contracting capabilities, or diverse supplier opportunities, please contact:

This email address is being protected from spambots. You need JavaScript enabled to view it.
Federal Market Manager
(800) 887-0847

"During the 10 years of my tenure at the BLM's Safford Field Office, the Tucson-based office of Tierra Right of Way Services, under the guidance of Barbara K. Montgomery, Ph.D., has always produced superior cultural resource reports, maps, and project data for my office. Her staff is always willing to address any question or request that I have presented them with, whether it is a project they are presently working on, a project they have worked on in the past, or a question related to a cultural resource issue that is outside of our work history but Tierra has information on. Tierra's staff is always professional and friendly, from the administrative staff to the field and research archaeologists. I know that when Tierra is on the job, I will get a superior product. I am always happy to work with Dr. Montgomery and her staff."

~ Daniel McGrew, Archaeologist,
BLM Safford Field Office