We deliver audit-ready microbial testing services that prove your cleanrooms, sterile compounding areas, and controlled environments meet regulatory standards. As one of the few laboratories in the nation with A2LA accreditation for environmental monitoring, we provide the defensible documentation quality assurance professionals rely on.
Our microbial testing services identify and quantify bacteria, fungal, and other contamination in pharmaceutical facilities, compounding pharmacies, healthcare institutions, and manufacturing operations nationwide. [1] From routine environmental monitoring to urgent pre-audit verification, we combine technical precision with fast turnaround times that match your compliance deadlines.
What makes us different: documented chain of custody from collection to analysis, color-coded reporting that makes vulnerabilities immediately visible, and comprehensive certificates that include organism type, count, and location.
Since 1976, Allometrics has helped quality assurance managers pass inspections and operations directors maintain continuous compliance. When contamination control verification can’t fail, trust the laboratory that built its reputation on measurement certainty.
Comprehensive Microbial Testing Capabilities
Bacterial Contamination Detection
We identify and quantify the most common bacterial contaminants found in pharmaceutical and healthcare environments, including:
- Staphylococcus, Staphylococcus aureus & Coagulase-negative Staphylococcus
- Pseudomonas aeruginosa
- Bacillus species
- E. coli & Enterococcus
- Streptococcus species
- Micrococcus
- Corynebacterium
- Stenotrophomonas
Fungal Analysis
Our laboratory detects problematic fungal contamination including:
- Aspergillus
- Penicillium
- Cladosporium
- Alternaria
- Curvularia
- Stachybotrys
- Chaetomium
- Yeast organisms
Testing Methods We Perform
- Air Sampling
- Surface Sampling
- Gloved fingertip sampling
- Media Fill Testing
Clear, Color-Coded Reporting
Our comprehensive reports use color-coding to help you identify contamination risks at a glance:
- Green: No growth detected (passing)
- Blue: Organisms present within acceptable limits (passing)
- Red: Out-of-compliance counts requiring action (failing)
- White: Results non-applicable to USP
Each report documents sample locations, organism types and counts, incubation temperatures, plate types used, and applicable guidelines—giving you everything auditors need to verify your environmental monitoring program.
Other Testing Available: Don’t see your specific organism of concern or testing method listed? Contact our laboratory team at (281) 474-3329 to discuss microbial testing tailored to your contamination control needs.
Industries We Serve
Our microbial testing services support organizations where contamination control directly impacts product safety, patient outcomes, and regulatory compliance:
Pharmaceutical & Compounding
- Sterile compounding pharmacies preparing IV medications
- Hospital pharmacies with cleanroom operations
- Radiopharmacies handling radioactive compounds
- Oncology clinics compounding hazardous drugs
- Independent compounding facilities serving multiple healthcare providers
Healthcare & Medical
- Hospital operating rooms and surgical suites
- Laboratory facilities processing diagnostic samples
- Medical device manufacturing cleanrooms
- Tissue banks and cell therapy centers
- Dental clinics with sterile processing areas
Research & Education
- University research laboratories with biosafety requirements
- Independent research facilities conducting microbiology studies
- Colleges with pharmacy and medical technology programs
- Contract research organizations (CROs) serving pharmaceutical clients
Manufacturing & Processing
- Food processing facilities requiring environmental monitoring [2]
- Biotechnology companies producing biological products
- Cosmetics manufacturers with cleanroom operations
- Nutraceutical producers following GMP requirements
Each industry faces unique contamination risks and regulatory requirements. Our testing protocols adapt to your specific standards whether you follow FDA guidance, state board of pharmacy regulations, or ISO cleanroom classifications.
Why Quality Assurance Professionals Trust Allometrics
A2LA ISO 17025 Accreditation You Can Defend
Independent auditors have verified our laboratory competence, quality systems, and measurement traceability. Our accreditation scope specifically covers environmental monitoring—giving you results that withstand regulatory scrutiny.
50+ Years of Regulatory Expertise
Since 1976, we’ve supported clients through FDA inspections, state board surveys, and accreditation audits. We stay current with USP chapter revisions and regulatory guidance so your testing remains compliant.
Nationwide Laboratory Service
Our Webster, Texas facility serves clients across the United States. We provide complete sample collection kits with detailed instructions and onsite testing by our experienced technicians.
Visual Reporting That Simplifies Compliance
Our color-coded reports eliminate guesswork. Green, blue, red, and white indicators let you spot contamination issues instantly without decoding complex data tables. Each report documents sample locations, organism identification & count—presented in a format that busy quality assurance professionals can review quickly and auditors can verify easily.
Our Microbial Testing Process
What is Microbial Testing?
Microbial testing verifies that your controlled environments remain free from harmful levels of microbial contamination, be it bacteria, fungi or something else. Regulatory agencies require this testing to prove your cleanrooms, sterile compounding areas, and processing environments meet contamination control standards that protect product quality and patient safety.
The process involves collecting samples from air, surfaces, or personnel, then culturing those samples in our laboratory under controlled conditions. Microorganisms present in the sample grow into visible colonies that we count, identify, and compare against your acceptance criteria.
Why Regular Microbial Testing Protects Your Operation
Protects Patient Safety and Product Integrity
Proactive environmental monitoring prevents harmful bacteria, mold, and fungi from contaminating sterile products that could cause severe patient illness. Regular testing catches contamination before it reaches finished goods, protecting both patients and your product reputation.
Reduces Waste and Prevents Recalls
Detecting contamination early eliminates the waste of raw materials, labor, and production time. Routine monitoring identifies problems at the source—HVAC systems, cleaning procedures, personnel technique—before entire batches require destruction or costly market recalls.
Validates Your Contamination Control
Testing verifies that HEPA filters work, cleaning procedures eliminate organisms, and personnel technique maintains sterility. It’s objective proof your systems perform as designed.
Qualifies Personnel Competency
Glove sampling demonstrates that staff maintain aseptic technique during critical operations—required evidence for USP compliance and personnel training programs.
Risks of Inadequate Environmental Monitoring
Regulatory Consequences
Missing or insufficient microbial testing data creates immediate audit findings. FDA warning letters frequently cite inadequate environmental monitoring programs. State boards can restrict compounding privileges until deficiencies are corrected.
Reputation Damage
Contamination events that reach patients trigger mandatory reporting, public notifications, and permanent records in FDA databases. The reputational cost extends far beyond immediate financial losses.
Blind Spots Create Crisis Response
Facilities without routine monitoring only discover contamination through failed product testing or patient adverse events—forcing expensive emergency investigations when proactive testing would have provided early warning and simple corrective action.
Schedule Your Microbial Testing Service
Get audit-ready results from an A2LA ISO 17025 accredited laboratory with 50+ years serving regulated industries.
Whether you need routine environmental monitoring, pre-audit verification testing, or urgent contamination investigation support, our team executes your sampling protocols with the precision and documentation quality that regulators expect.
Nationwide laboratory service from our Webster, Texas facility—complete sample collection kits with detailed instructions or onsite collection and excellent technical support when you need clarification on results or regulatory requirements.
Call (281) 474-3329 to discuss your testing schedule and receive a detailed quote.
Let us show you why quality assurance professionals trust Allometrics for microbial testing that protects their products, their patients, and their compliance records.