Corporate Office
1670 East Race Street
Allentown, PA 18109

Branch Office
2140 Priest Bridge Court
Crofton, MD 21114

Branch Office
455 Fortune Boulevard
Milford, MA 01757

Increase your productivity, accuracy and control using one of the largest VRS networks in the Northeast.
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Keystone Precision Instruments was founded in 1989. The Mission of Keystone Precision Instruments is to provide measurement solutions that increase our customer’s productivity and profitability.  Through strong leadership and one of the most talented work forces in the industry, Keystone Precision Instruments has grown into the premier construction and survey equipment consulting company in the northeastern United States. 

The company employs more than 40 people and covers a primary area from Maine to northern Virginia. The home office is located in Allentown, Pennsylvania, in a state-of the-art, 28,000-square-foot building. Branch offices are located in Crofton, MD, Milford, MA, Syracuse, NY and Towanda, PA. Our staff includes five licensed land surveyors, two civil engineers, and a full complement of in-house personnel, featuring factory trained repair and service departments whose expertise is available to solve the most challenging measurement problems.

Keystone features Trimble products, first and foremost. Product lines include; both GPS and optical survey products, robotic instruments, GIS & data collection, 3D scanning technologies, vehicle & asset management and a full complement of supply items to meet our customers' daily needs.

Keystone has also established one of the largest RTN (VRS) Networks, KeyNet GPS, in the Northeast and is working diligently to expand it. Coverage includes areas of Virginia, Maryland, Delaware, New Jersey, Pennsylvania, New York, Connecticut, Vermont, Massachusetts, Rhode Island, New Hampshire and Maine.

We would like to thank you for your support of Keystone Precision Instruments and look forward to partnering with you to increase your productivity and profitability.

Our new state-of-the-art, 28,000-square-foot, facility in Allentown, Pennsylvania



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