Please contact us to set up an appointment.

Mission Statement

We do not accept Walk-in's at this time

Our Company is conveniently located in Vestal, New York. 
We operate a 4,000 sq ft facility designed for all of your testing needs!

Accredited Services
We pride ourselves in listening to grower/processors and providing services they ask for!

Potency & Profile

  • We can test up to 20 cannabinoids using HPLC.


  • We test for 40+ terpenes using GCMS.

Residual Solvents

  •  We test 50+ Residual Solvents using GCMS.


  • We test 60+ Pesticides using GCMSMS and LCMSMS.

Microbiology & Mycotoxins

  • We test for Ecoli, STEC, Bile-Tolerant Gram-Negative, Total Aerobic Bacteria, Total Yeast and Mold, Salmonella, Staph E, Aspergillus, Aflatoxin B1, B2, G1, G2, Ochratoxin A.

Water Activity & Moisture Content‏‏

Heavy Metal

  • We test for 30+ heavy metals using ICPMS.

We are happy to offer lab tours!

Contact us to make an appointment!

Contact Information

We are OCM approved to serve your adult use and medical testing needs.

New York Cannabis Testing Laboratory

New York

Keystone State Testing strives to be the gold standard in cannabis testing by achieving the highest levels of accuracy and precision in analytical solutions while using integrity, rigor and scientific standards.

+1.717.585.0393 (PA) 

+1.607.301.0884 (NY) Vestal

Sun-Thurs 8am - 5pm
 Fri 8-3pm​

Additional Services

Process Control & Optimization

Heavy Metal Vapor Analysis


Plant Gender ID

Accelerated Stability

Leachable Studies

Macro & Micro nutrients

Strain Confirmation

Research and Development

Growth Optimization

Customized Services