Marcie L. Deffenbaugh

Manager- GIS Services

Marcie L. Deffenbaugh

Manager- GIS Services

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 technicians, analysts, cartographers, and project administrative assistants who provide data validation and project management services for oil and gas 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 surveying projects in the petroleum industry. She has worked with land surveyors and GIS professionals in the development of industry-specific standards and methodology for field data collection and geospatial data submissions for surveying companies, including data management and conflict resolution for property boundary and right-of-way surveys. 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 very proficient with 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 proficient in frontend and backend web development with HTML, CSS, JavaScript, React JS library, and PHP.


  • 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

Professional Associations

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


  • Code Lousiville Graduate, Code Louisville, Louisville, KY

Security Access

  • Transportation Security Administration (TSA)

Safety Trainings

  • SafeLandUSA, Basic Safety Awareness Orientation