Our Family of Companies


TLG regularly designs and delivers training modules that are customized to the needs of clients. From public outreach to facilitation to communication to conflict resolution, we help clients equip their staff with the tools needed to work effectively with internal teams and the public.


See What Makes Our Projects Successful
Click on the examples below to see some of our featured projects.
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Airport GIS Database | Pullman-Moscow Regional Airport

The Pullman-Moscow Regional Airport (PMRA) was selected to participate in the second round of the FAA’s pilot program for Airports […]

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Terminal Building Expansion and Taxiway Realignment AGIS Survey | Port of Pasco

The Tri-Cities Airport recently completed construction on a large taxiway realignment project as well as added a large addition to […]

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Port of Benton Airspace Zoning Analysis | Port of Benton

Together the Port of Benton and the City of Richland, Washington have a need to coordinate with each other on […]


“The Langdon Group and its staff are straight forward and honest.  They can relax, laugh and do business.  They make things go well in a relaxed atmosphere.”

– Kenton Moffett, Ogden City Water Utility Manager