We are proud to announce 

We are officially the first nationally certified 

Woman-Owned Cannabis Laboratory in the U.S. 

Cannabinoid Profile & Potency

Terpene Profile & Potency

Pesticide Detection

Residual Solvents

Microbial Detection

Heavy Metal Detection

Macroscopic Inspection

Plant Profile

Leachable Studies

Stability Studies

Cultivation Consultation

Strain Confirmation

Customized Services

Community Service Volunteering

Laboratory Sponsored Programs

Hours: Sun-Thurs 8am - 5pm

Fri 8am-3pm



Contact Information

Mission Statement

Community Resources

Keystone State Testing

 is an independent, locally owned analysis, biotechnology, and research facility.  Through scientific process we seek to enable cultivators, dispensaries, manufacturers, and consumers with knowledge and transparency. We are committed to excellence by ensuring accuracy, safety, speed, reproducibility, and cost effective solutions for our clients.


4949 Queen Ave, Ste 104

Harrisburg, PA 17109 



Sun - Thurs 8am - 5pm

Friday  8am-3pm

Closed Saturdays

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


We now offer PA Certified hemp sampling! 

For more information please speak directly to our Hemp Coordinator:

Mr. Robert Gearhart