Business Services

Independent laboratories in St Louis, MO

4 independent, locally-owned laboratories are listed in St Louis, Missouri 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 Lab Test Diagnostics, EKG Labs and Mars USA Dental Lab.

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 15, 2026

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4 laboratories in St Louis · Clear

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Lab Test Diagnostics

Laboratory

5000 Cedar Plaza Pkwy, St. Louis, MO

Good signals

EKG Labs

Laboratory

2250 Welsch Industrial Ct, St. Louis, MO

Good signals

Mars USA Dental Lab

Laboratory

9495 Page Ave Ste 102, St. Louis, MO

Good signals

Dynalabs

Laboratory

3830 Washington Blvd Ste 120C, St. Louis, MO

Good signals

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