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Deibel Laboratories

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Family-owned North American food safety laboratory network providing microbiology, chemistry, allergen and nutritional testing, training and advisory services since 1967.

Last updated September 26, 2026

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Overview

Deibel Laboratories is a family-owned North American network of food safety testing laboratories founded in 1967 by Dr. Robert Deibel, a microbiologist regarded as one of the foremost experts on foodborne microbial issues and one of the HACCP "Founding Fathers." The company began in the hallways of the University of Wisconsin and grew into a network of labs across North America. It remains family owned and operated under the leadership of Dr. Deibel's son, C.T. Deibel. The company positions itself as a partner to food, beverage and consumer product companies that need outside testing to ensure product safety and quality and to protect their brand names. Its core testing services cover microbiology, chemistry, allergen testing and nutritional label testing. Microbiology laboratories are ISO 17025:2017 accredited and use standard cultural methods, rapid microbial detection methods, and serological and genomic tools for microbial identification and characterization. Chemistry capabilities include column chromatography, gas chromatography, HPLC, UV spectrophotometry, fluorimetry and standard wet chemical methodologies. The company also provides bacterial and fungal identification, including strain differentiation through whole genome sequencing and other genomic-based methods, as well as toxin testing. Beyond routine testing, Deibel Laboratories offers special projects such as challenge studies, shelf life studies, process validations, and method and matrix validations. It provides training and education through an extensive library of courses, including customized courses, to support clients' quality and safety programs. Its microbiological and product safety advisory services include on-site support, expert witness services, individualized product safety plans and procedures, and regulatory support. Environmental monitoring services help food manufacturing facilities verify FDA- and USDA-mandated pathogen preventive controls and GMPs. The company emphasizes a personalized service approach: clients have direct and immediate access to the scientists working on their testing via phone, mobile and email, and to subject matter specialists for more detailed consultations, rather than going through a call center. Deibel Laboratories commits to providing accurate, timely testing at a fair price and to working collaboratively with clients to understand their food safety program requirements and goals.

History

Deibel Laboratories was started in 1967 by Dr. Robert Deibel, described by the company as a true legend in the field of microbiology. Dr. Deibel is regarded as one of the foremost experts on foodborne microbial issues and as one of the HACCP "Founding Fathers." According to the company's own account, he expanded Dr. Howard Bouman's HACCP Principles from three to five and provided the first HACCP Short Course to the industry in the 1970s. The business began from his first testing lab in the hallways of the University of Wisconsin. Over the following decades it grew into a network of laboratories across North America. The company remains family owned and operated under the leadership of Dr. Deibel's son, C.T. Deibel. As it expanded, Deibel Laboratories built out a broad service portfolio for food, beverage and consumer product companies. Its testing services grew to include full microbiology, chemistry, allergen and nutritional label testing. Its microbiology laboratories became ISO 17025:2017 accredited, and the testing portfolio came to include standard cultural methods, the newest rapid methods of microbial detection, and serological and genomic tools for microbial identification and characterization. Chemistry capabilities expanded to include column chromatography, gas chromatography, HPLC, UV spectrophotometry, fluorimetry and standard wet chemical methodologies. The company also added bacterial and fungal identification, including strain differentiation through whole genome sequencing and other genomic-based methods, as well as toxin testing. Beyond testing, the company developed special project services such as challenge studies, shelf life studies, process validations, and method and matrix validations. It built a training and education business offering an extensive library of courses, including custom courses, to enhance clients' quality and safety programs. It added microbiological and product safety advisory services, from on-site support to expert witness services, and environmental monitoring services to help food manufacturing facilities verify FDA- and USDA-mandated pathogen preventive controls and GMPs. Throughout its history the company has emphasized a collaborative, personalized service approach, with clients having direct and immediate access to the scientists in the labs working on their testing, and to subject matter specialists for more detailed consultations. It commits to providing accurate, timely testing at a fair price.

  • 1970

    Dr. Deibel provided the first HACCP Short Course to the industry in the 1970s.

  • 1967

    Deibel Laboratories founded by Dr. Robert Deibel, starting in the hallways of the University of Wisconsin.

  • Grew from a single testing lab into a network of laboratories across North America.

  • Microbiology laboratories achieved ISO 17025:2017 accreditation.

Products and positioning

Science you can trust from concept to consumer — accurate, timely testing at a fair price with direct access to laboratory scientists.

  • Microbiology testing

    ISO 17025:2017 accredited testing using standard cultural methods, rapid microbial detection methods, and serological and genomic tools for microbial identification and characterization.

  • Chemistry testing

    Analyses including column chromatography, gas chromatography, HPLC, UV spectrophotometry, fluorimetry and standard wet chemical methodologies.

  • Allergen testing

    Test data to verify allergen preventive controls are in place in a facility.

  • Nutritional label testing

    Nutrient analyses to meet Nutrient Facts labeling requirements, support labeling claims, or investigate nutrient content.

  • Bacterial and fungal identification

    Identification of fungal and bacterial organisms isolated from food products, consumer products and process environments, including strain differentiation through whole genome sequencing and other genomic-based methods.

  • Toxin testing

    Testing and handling of many toxins.

  • Special projects

    Challenge studies, shelf life studies, process validations, and method and matrix validations.

  • Training and education

    An extensive library of courses, including custom courses, to enhance quality and safety programs.

  • Microbiological and product safety advisory services

    On-site support, expert witness services, individualized product safety plans and procedures, and regulatory support.

  • Environmental monitoring services

    Programs tailored to a facility and manufacturing processes to verify FDA- and USDA-mandated pathogen preventive controls and GMPs.

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