Since 1993, Keystone Associates has delivered trusted land surveying across all of Upstate New York. With offices in Binghamton, Cortland, and Monticello, our New York–licensed surveyors serve clients region-wide, with a core focus on the following counties:

• Broome County – Binghamton, Johnson City, Endicott, Windsor
• Tioga County – Owego, Newark Valley, Spencer
• Delaware County – Delhi and Catskills communities
• Chenango County – Afton, Norwich, Oxford
• Cortland County – Cortland, Homer, McGraw
• Otsego County – Cooperstown, Oneonta
• Sullivan County – Monticello, Fallsburg, and the Catskills

We support both public and private sector clients in residential and commercial development, agriculture, infrastructure, tourism, and historic preservation.

Our services include boundary surveys, ALTA/NSPS surveys, topographic mapping, construction stakeout, elevation certificates, and pre-construction planning. Clients include developers, municipalities, contractors, utility companies, schools, and homeowners.

Keystone Associates also provides surveying services in Northeastern Pennsylvania, including Bradford, Susquehanna, Wayne, Wyoming, Lackawanna, and Northern Luzerne Counties.