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Independent laboratories in Longmont, CO

4 independent, locally-owned laboratories are listed in Longmont, Colorado on CheckThisBiz. National chains and franchises are not included. Ranked by how much we could independently verify (listing sources, phone, website and owner verification), the top laboratories are NTS Longmont Testing Lab - Environmental & Dynamics, Horacio Gutierrez, MD and Hilarie Gutierrez, MD.

How we rank: email-verified customer reviews on CheckThisBiz first, then independent checks (listing sources, phone, website and domain, owner verification). Paid placement never changes this ranking. Our methods · Sources · Updated November 14, 2026

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4 laboratories in Longmont · Clear

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NTS Longmont Testing Lab - Environmental & Dynamics

Laboratory

1601 Dry Creek Dr #2000, Longmont, CO

Good signals

Horacio Gutierrez, MD

Laboratory

1380 Tulip St, Longmont, CO

Good signals

Hilarie Gutierrez, MD

Laboratory

1380 Tulip St, Longmont, CO

Good signals

CCN

Laboratory

105 S Sunset St Ste J, Longmont, CO

Good signals

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