We are Surveyors

From leadership to the latest hire, GdB's entire focus is Geospatial Services.

SAM GdB Geospatial
GdB Geospatial has joined SAM
We are very pleased to announce that we have joined SAM, the nation’s leading provider of Managed Geospatial Services™ across the utility, transportation, and broader infrastructure markets.

Building Blocks - The GdB Story

The firm history dates back 60 years to a small civil engineering and land surveying firm on Long Island.  In 2010 Christine Gayron, LS and Jason Graf, LS joined Greg de Bruin, LS as principals of the firm.  Greg retired in 2020 and Christine and Jason remain concentrated on our core competency -- geomatics. 

GdB grew from 9 people in 2010 to more than 100 today across 3 offices. The focus remains on answering one question for our clients --  where?   Knowing the 3D position of physical features, the extent of underground utilities, and the location of property boundaries serves as the indispensable foundation for design, construction, and real estate transactions. 

Precision is nothing without Accuracy and both depend on what's needed and when.

Balancing speed, quality, and price is where experience counts most and where our staff shines.  Count on GdB to collaborate with your team and develop a solution that works for your project. 

Leadership Team

Self-Care Advocate

Christine is licensed in New York and Florida. She loves traveling and spending time outdoors. She is an avid cyclist/runner and LOVES dogs.

Christine Gayron, PLS, PSM
President & Visionary

Avid Boater & Fisher

Jay loves to explore the Great South Bay and Fire Island. He brings 21 years of experience and is a NYS Licensed Land Surveyor and Drone Pilot.

Jason Graf, LS
Executive Vice President

Map Nerd

Dennis turned his love of maps and degree in Geography into a career as a surveyor. His favorite thing about GdB is building teams.

Dennis Owen Jr., LS
Director of Operations – Melville


Scott enjoys hunting, fishing, kayaking, camping and spending time with family and friends. He has over 33 years of experience and is licensed in NY and PA.

Scott Smith, LS
Director of Operations – Rochester

Weekend Warrior

Lem is also an adjunct professor, is licensed in 10 states and has 30 years of surveying experience.

Lemuel Morrison, LS
Business Development Lead

Small but Mighty

At 4'10" Jennifer frequently has the largest personality in any room. She obtained her B.B.A. in Finance from Hofstra University and enjoys spending time with her family and pets.

Jennifer Esposito
Finance Director