Avantor Adds Microbial Testing at St. Louis Manufacturing Site

It localizes testing previously conducted across third-party labs.

Avantor St Louis Quality Control Laboratory
Avantor

Avantor said it's expanding its North American quality control capabilities with the addition of advanced microbial and stability testing at its St. Louis manufacturing site.

Key Highlights

  • Expands GMP-aligned microbial testing and ICH-compliant stability testing and storage in North America
  • Localizes testing previously conducted across third-party labs and Avantor's global network, bringing critical capabilities closer to U.S. manufacturing operations
  • Supports 2,000+ microbial samples annually within Avantor's internal network
  • Enables faster turnaround times, improved data visibility, and reduced supply chain complexity

The enhanced St. Louis facility now offers integrated microbial and stability testing aligned with global regulatory standards, supporting regulated biopharma applications. By consolidating these capabilities into a single North American location, Avantor said it reduces reliance on external laboratories and minimizes cross-border sample movement.

"Expanding our quality control capabilities in North America strengthens our manufacturing and supply chain infrastructure and will help us deliver our high-quality chemicals and other products to customers faster," said Avantor COO Mary Blenn in a statement. "As part of our Revival program, we are making significant investments in our global supply chain and quality capabilities, all with a focus on reducing risk, accelerating timelines and delivering more value to our customers."

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