SEARCH for Individuals with GISP®

Check the status of your GISP or any of the GISPs in our registry.

GISP Registry (as of May 3, 2025) Excel Spreadsheet here.

We strive to keep the information accurate and updated.    Please report errors to:  info@gisci.org

A GISP search (active / inactive)  in real time from the database is available here (For best results use the state abbreviation):

Enter information into the table listing below the map to search for a GISP

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  2. Region: maryland
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GISP-E
GISP-EActive
GISP
GISPActiveExpired

Joseph Rathvon

GIS Manager
GISP Approved
Active

Cert Number: 90072
Expiration: 10/25/2025
Zip: 21740

Alice Redfield

Senior Scientist
Expired

Cert Number: 60888
Expiration: 12/25/2013 00:00:00
Zip: 20832

Douglas Reedy

GIS Project Manager
Expired

Cert Number: 17648
Expiration: 04/25/2018 00:00:00
Zip: 21601

Efrain Reyes

Sr Land Surveyor/GIS - AM1 Real Estate Cadastral
Active

Cert Number: 82960
Expiration: 06/25/2025 00:00:00
Zip: 21703

Michael Rink

Information Systems Analyst
Expired

Cert Number: 56171
Expiration: 02/25/2017 00:00:00
Zip: 20910

Andreas Ritterbusch

Sr Software Integrator
Active

Cert Number: 161151
Expiration: 12/25/2024 00:00:00
Zip: 21042

Shelby Roberson

GIS Manager
GISP Approved
Active

Cert Number: 90997
Expiration: 06/25/2026 00:00:00
Zip: 20878

Starla Robinson

Physical Scientist
GISP Approved
Active

Cert Number: 65682
Expiration: 01/25/2028
Zip: 20783

Demian Rybock

GIS Professional Consultant
GISP Approved
Active

Cert Number: 42990
Expiration: 04/25/2028
Zip: 20781

Matthew Sadecki

Senior GIS Engineer
Expired

Cert Number: 22290
Expiration: 12/25/2016 00:00:00
Zip: 21090
Page Size:
Total Results: 336

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