Marcie L. Deffenbaugh


Marcie L. Deffenbaugh


GET TO KNOW Marcie L. Deffenbaugh

Ms. Deffenbaugh is the Manager of GIS Services for Haag Technical Services, a division of Haag Global, Inc.  In this role, Ms. Deffenbaugh oversees initiatives related to GIS planning, system design, and system administration. She also manages a staff of GIS professionals who deliver data validation and project management services for clients. As the primary liaison between the client management teams and Haag Technical Services personnel, Ms. Deffenbaugh provides technical consulting services on a regular basis.

Ms. Deffenbaugh has extensive experience in the integration and normalization of geospatial data for a variety of project types. She has worked with GIS experts from several fields in the development of industry-specific standards and methodology for field data collection and geospatial data submissions, including data management and conflict resolution. Ms. Deffenbaugh is also experienced in GIS implementation and project management for a wide range of industries including transportation, governmental and non-governmental organizations, and non-profit entities.

Ms. Deffenbaugh is an experienced GIS developer and actively maintains all facets of the Haag Geoportal, a web mapping application used for data visualization of project information such as GIS data, 3D scans, drone imagery, spherical photography, and more. She is qualified in numerous computer applications including a variety of Esri products (ArcGIS desktop, ArcGIS Pro, ArcGIS online, model builder, data reviewer, spatial analyst, 3D analyst) and scripting programs related to GIS (Python, FME). Ms. Deffenbaugh also has broad experience in database design and development using SQL Server, VB.Net//Visual Basic/VBA, and Microsoft Access. Additionally, Ms. Deffenbaugh is highly skilled in frontend and backend web development with HTML, CSS, JavaScript, ArcGIS API for JavaScript, React JS library, and PHP.


  • Code Louisville Graduate, Code Louisville, Louisville, KY


  • Kentucky Association of Mapping Professionals (KAMP), Member
  • Urban and Regional Information Systems Association Texas (URISA Texas), Member


  • Master of Information Science, Indiana University, Bloomington, IN
  • Master of Latin American Studies, Indiana University, Bloomington, IN
  • Bachelor of Business Administration in Management Information Systems, Texas A&M University, College Station, TX
  • Bachelor of Arts in Spanish Studies, Texas A&M University, College Station, TX

Safety Trainings

  • SafeLandUSA, Basic Safety Awareness Orientation

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