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

William Tewelow

Manager
GISP Approved
Active

Cert Number: 90266
Expiration: 01/25/2026
Zip: 20874

Mussie Tewolde

GIS Specialist
GISP Approved
Active

Cert Number: 88740
Expiration: 10/25/2025 00:00:00
Zip: 20772

Dan Thomas

Division Manager, Technology & GIS Services
Expired

Cert Number: 61121
Expiration: 12/25/2013 00:00:00
Zip: 21043

Brian Tolley

GIS Specialist II
GISP Approved
Active

Cert Number: 160943
Expiration: 01/25/2027
Zip: 21643

Jason Torres

Mgy Support Specialist
Expired

Cert Number: 51550
Expiration: 05/25/2021 00:00:00
Zip: 21045

Adam Travis

GIS/CADD Specialist
GISP Approved
Active

Cert Number: 90319
Expiration: 01/25/2026
Zip: 21030

Wendy Turner

Sr GIS Engineer
Expired


Zip: 21104

Graham Twibell

Regional Planner
GISP Approved
Active

Cert Number: 160875
Expiration: 10/25/2026
Zip: 21211

Mary Valentino

GIS Specialist IV
Expired

Cert Number: 1280
Expiration: 06/25/2016 00:00:00
Zip: 21237

Erwin Villiger

Principal, Sustainability and Climate Analytics
GISP Approved
Active

Cert Number: 68072
Expiration: 06/25/2026
Zip: 20874
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Total Results: 336

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