Wisconsin Diagnostic Laboratories

What Wisconsin Diagnostic Laboratories does

Wisconsin Diagnostic Laboratories (WDL) is a privately held, full-service independent clinical diagnostic reference laboratory headquartered in Milwaukee, Wisconsin, operating 24/7 and performing more than 6 million tests annually. The company is affiliated with the Medical College of Wisconsin (MCW) and the Froedtert & MCW health network, serving hospitals, physician practices, long-term care facilities, employers, and individual patients across Southeast Wisconsin with a comprehensive menu spanning Anatomic Pathology (with sub-specialty sign-out in dermatopathology and renal pathology), Chemistry, Cytogenetics, Cytology, Hematology, Microbiology, and Drug & Alcohol workplace testing. The laboratory employs Fluorescence Flow Cytometry, automated liquid-based ThinPrep cytology with Hologic Imager Duo computer-assisted screening, and immunohistochemistry/molecular capabilities, and is one of only 30 laboratories nationally and internationally approved by the Children's Oncology Group for pediatric leukemia cytogenetics.

Underlying the service offering is a sales-led, enterprise go-to-market in which WDL leverages direct relationships with healthcare providers, supported by a 24/7 Client Services team, medical directors per specialty (drawn from MCW faculty), MedSpeed courier logistics, and patient service centers distributed across the region. The company's revenue model is fee-for-service clinical laboratory testing billed primarily through insurance (with patient responsibility for co-pays and deductibles); pricing is not publicly disclosed. Accreditation by CAP, AABB, CLIA, FDA, and TJC underpins both regulatory standing and institutional contracting, while sub-specialty expertise and the MCW/Froedtert affiliation function as the primary competitive differentiators against larger commercial reference laboratories.

Strategic posture emphasizes depth over breadth: WDL positions itself as the only Wisconsin laboratory providing complete sub-specialty surgical pathology sign-out, runs dedicated Long Term Care and workplace Drug & Alcohol testing lines as differentiated service lanes, and supports its clinical output with online test directory, ordering, and results platforms. Revenue and headcount figures are not publicly disclosed, the entity is privately held with no disclosed parent or funding rounds, and operational growth signals are largely internal (volume scaling and product-line additions) rather than acquisitive or geographic.

Name

Wisconsin Diagnostic Laboratories

Legal name

Wisconsin Diagnostic Laboratories

Website

https://wisconsindiagnostic.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Wisconsin Diagnostic Laboratories is a full-service independent clinical diagnostic reference laboratory in Milwaukee, Wisconsin, performing over 6 million tests annually for hospitals, physician practices, long-term care facilities, employers, and patients across Southeast Wisconsin, affiliated with the Medical College of Wisconsin and Froedtert health network.

Ownership category

akta.pro rank

Product category

Clinical Laboratory Services

NAICS

Medical Laboratories (621511)

SIC

Services-Medical Laboratories (8071)

akta.pro primary industry

Reference & Esoteric Testing Laboratories (HLAFAMAJ)

akta.pro secondary industries

Occupational Health & Employer Testing Laboratories (HLAFAMAK), Toxicology & Therapeutic Drug Monitoring Laboratories (HLAFAMAF)

Keywords

• Clinical laboratory services
• Anatomic pathology
• Diagnostic testing
• Hematology testing
• Cytogenetics testing

Headquarters

HQ city

Milwaukee

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Supply Chain, Marketing or Sales

Revenue model

1. Clinical Laboratory Testing Services: WDL generates revenue through providing a comprehensive range of clinical diagnostic laboratory testing services to healthcare providers, hospitals, long-term care facilities, and physician practices. Services include anatomic pathology, chemistry, cytogenetics, cytology, hematology, microbiology, and drug/alcohol workplace testing.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

Wisconsin Diagnostic Laboratories (WDL) operates as a 24-hour, full-service independent clinical diagnostic reference laboratory performing over 6 million tests annually. The laboratory provides comprehensive clinical diagnostic testing across anatomic pathology, chemistry, cytogenetics, cytology, hematology, microbiology, drug and alcohol workplace testing, and long-term care services to physicians, hospitals, nursing facilities, and healthcare organizations in Southeast Wisconsin.

Product overview

Wisconsin Diagnostic Laboratories (WDL) operates as a 24-hour full-service independent clinical diagnostic reference laboratory performing over 6 million tests annually. The company offers a unified laboratory services portfolio organized into two primary divisions: Anatomic Pathology (including dermatopathology and renal pathology subspecialties) and Clinical Pathology (encompassing Chemistry, Hematology, Microbiology, Cytogenetics, and Cytology). Supporting the core diagnostic services, WDL provides additional modules including Drug and Alcohol Testing, Long Term Care Laboratory Services, Courier Services, an online Test Directory platform, and Online Bill Pay. Additional specialized offerings include Antibiograms for antimicrobial guidance and comprehensive Specimen Collection Instructions. The laboratory is affiliated with the Froedtert & Medical College of Wisconsin health network, providing academic-level care in community settings.

Differentiator

Problem solved

Functional benefit

Products and services

• Anatomic Pathology Diagnostic pathology services focused on tissue and tumor analysis, featuring sub-specialty sign-out system with dedicated specialists in dermatopathology and renal pathology, supported by immunohistochemistry and molecular lab capabilities.
• Chemistry Clinical chemistry and toxicology testing services providing comprehensive test menu from routine to highly complex testing, with consultation by board-certified clinical scientists from Medical College of Wisconsin.
• Cytogenetics Cytogenetic and fluorescent in situ hybridization (FISH) diagnostic testing services including congenital disorders, leukemia, lymphoma, and prenatal screening, with Children's Oncology Group (COG) approval for pediatric leukemia testing.
• Cytology Gynecological (PAP smears) and non-gynecological specimen diagnostics using automated liquid-based ThinPrep technology and computer-assisted Hologic Imager Duo system for cervical cancer screening.
• Hematology Testing on blood, urine, bone marrow, and sterile body fluids for diagnosing and monitoring anemia, leukemia, lymphoma, and other hematological disorders, utilizing Fluorescence Flow Cytometry technology.
• Microbiology Clinical microbiology subspecialties including aerobic and anaerobic bacteriology, molecular diagnostics, mycobacteriology, mycology, and parasitology testing.
• Long Term Care Laboratory Services Comprehensive clinical laboratory services delivered to skilled nursing facilities and community-based group homes, including phlebotomy, STAT services, and internet-based ordering and results access.
• Drug and Alcohol Testing Workplace drug and alcohol testing solutions including 5-panel and 11-panel rapid tests, DOT testing, oral fluid tests, breath alcohol testing, and Leadership Substance Abuse Awareness Training.
• Courier Services Specimen transportation services provided in partnership with MedSpeed, enabling efficient pickup and delivery of laboratory specimens.

Quantifiable outcome

• Performs over 6 million tests annually
• +3 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Medical College of WisconsincoreStrategic or Co-development PartnerWDL partners with the Medical College of Wisconsin Department of Pathology, leveraging academic faculty expertise for sub-specialty pathology services. The Medical College provides medical directors for various laboratory specialties including Clinical Microbiology, Molecular Diagnostics, Hematology, and Cytogenetics. This partnership enables WDL to provide academic-level diagnostic care in community settings.
• Froedtert HospitalcoreStrategic or Co-development PartnerWDL provides pathology and laboratory services to Froedtert Hospital, the primary teaching hospital of the Medical College of Wisconsin. The partnership enables sub-specialty surgical pathology sign-out at Froedtert Hospital, with dedicated specialists providing the highest level of support for clinical and surgical teams.
• MedSpeedcoreTechnology or IntegrationMedSpeed provides courier services for WDL, enabling specimen transport from healthcare provider client locations to WDL laboratories. This partnership supports WDL's ability to serve clients throughout the Southeast Wisconsin region with reliable, efficient specimen pickup and delivery.
• Children's Oncology Group (COG)minorStrategic or Co-development PartnerWDL's Cytogenetics Laboratory is one of only 30 national and international laboratories approved by COG to determine the cytogenetic status of pediatric leukemic patients. This approval recognizes the laboratory's high-quality diagnostic capabilities in pediatric oncology cytogenetics.
• Healthcare Organizations (Southeast Wisconsin)coreChannel Partner/ Reseller/ DistributorWDL partners with healthcare organizations throughout the Southeast Wisconsin region, providing comprehensive laboratory services. These partnerships include hospitals, physician practices, and various healthcare facilities that utilize WDL's testing services and consultation capabilities.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• ARUP Laboratories: Academic medical center-affiliated reference laboratory offering esoteric testing and sub-specialty pathology with a non-profit, university-based model analogous to WDL's MCW affiliation. Operates a similar full-service menu across chemistry, hematology, microbiology, cytogenetics, and anatomic pathology.
• Mayo Clinic Laboratories: Reference laboratory of Mayo Clinic offering esoteric testing and sub-specialty diagnostics on a national/international scale. Directly comparable academic-anchored model with broad test menu, sub-specialty sign-out, and outreach to hospitals and physician practices.
• BioReference Laboratories (an OPKO Health company): Full-service clinical reference laboratory with strength in specialty/esoteric testing, oncology, and women's health. Comparable test menu and sub-specialty structure to WDL's anatomic and clinical pathology offerings.
• ACL Laboratories: Regional reference laboratory serving Wisconsin and Illinois with hospital and physician outreach. Comparable scale, scope, and Midwest geography, making it WDL's most direct in-region competitor for routine testing volumes.

Broad incumbents

• Quest Diagnostics: Largest U.S. clinical reference laboratory offering full routine and esoteric testing services to hospitals, physicians, and employers. Competes directly with WDL on routine testing in Southeast Wisconsin and represents the dominant national-scale competitor.
• Sonic Healthcare USA: Multi-region reference laboratory platform operating across multiple U.S. geographies with routine and esoteric testing services. Comparable comprehensive menu and enterprise client model to WDL.
• Laboratory Corporation of America (Labcorp): Second-largest U.S. clinical reference laboratory with comparable routine and esoteric testing capabilities plus integrated diagnostics. Sets the national pricing and service benchmarks that regional labs like WDL must compete against.

Emerging players

• Eurofins Viracor: Specialty reference laboratory with strength in immunology, infectious disease, and transplant diagnostics. Comparable in operating as a specialty/ esoteric reference lab rather than a high-volume commodity provider, mirroring WDL's higher-complexity positioning.
• Dianon Pathology / Labcorp Specialty: Specialty anatomic pathology laboratory now part of Labcorp's specialty testing division, with comparable sub-specialty pathology services including dermatopathology and hematopathology. Represents a direct specialty-level competitor to WDL's anatomic pathology franchise.

Regional players

• Versiti Diagnostic Laboratories: Regional diagnostic laboratory based in the Midwest with academic-affiliated expertise in hematology, coagulation, and transfusion medicine. Notably, one WDL medical director also serves as a Versiti clinical consultant, indicating direct overlap in personnel and capability.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/wisconsin-diagnostic-laboratories

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Wisconsin Diagnostic Laboratories