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NAICS Code· 621511

Medical Laboratories

This U.S. industry comprises establishments known as medical laboratories primarily engaged in providing analytic or diagnostic services, including body fluid analysis, generally to the medical profession or to the patient on referral from a health practitioner. Illustrative Examples: Blood analysis laboratories Medical pathology laboratories Medical bacteriological laboratories Medical testing laboratories Medical forensic laboratories Cross-References.Show more

NAICS 621511 – Medical Laboratories encompasses the operation of facilities that perform clinical diagnostic testing on human specimens, including blood, tissue, and bodily fluids, to support medical diagnosis, treatment, and public health surveillance. Services under this code include molecular diagnostics, immunology assays, microbiological cultures, cytology, and toxicology screening, often delivered through automated analytical platforms and regulated under CLIA, CAP, and ISO standards.

103
Active Contracts
$474.7M
Total Obligations (12mo)
1.4K
Awarded Contracts (12mo)
323
Contractors Awarded (12mo)
-70.9%
YoY Growth

Industry Spending Overview

Federal obligations, top companies and agencies, and related industry codes for NAICS 621511.

AI Industry Description

NAICS 621511 – Medical Laboratories encompasses the operation of facilities that perform clinical diagnostic testing on human specimens, including blood, tissue, and bodily fluids, to support medical diagnosis, treatment, and public health surveillance. Services under this code include molecular dia...

NAICS 621511 – Medical Laboratories encompasses the operation of facilities that perform clinical diagnostic testing on human specimens, including blood, tissue, and bodily fluids, to support medical diagnosis, treatment, and public health surveillance. Services under this code include molecular diagnostics, immunology assays, microbiological cultures, cytology, and toxicology screening, often delivered through automated analytical platforms and regulated under CLIA, CAP, and ISO standards. In the federal contracting landscape, these laboratories support mission-critical health monitoring for diplomatic personnel, military deployments, global health initiatives, and emergency response operations, frequently through outsourced contracts with specialized service providers rather than in-house federal labs. The primary contractor in this sector is ALTITUDE TECHNOLOGIES INC., a mid-sized firm with expertise in deploying scalable, compliant laboratory solutions for federal clients. The competitive landscape is dominated by specialized service providers with strong regulatory compliance credentials, rather than large primes, reflecting the technical and accreditation-intensive nature of clinical lab services. Contracting typically requires CAP accreditation, CLIA certification, and experience in high-complexity testing environments. The Department of State is the leading federal agency awarding contracts under this NAICS code, primarily to support medical surveillance and diagnostic services for U.S. embassies, consulates, and overseas personnel. Demand is driven by global health security programs, employee wellness mandates, and biothreat detection protocols in high-risk regions, with contracts often structured as indefinite-delivery/indefinite-quantity (IDIQ) vehicles requiring rapid response capabilities. The market is characterized by high barriers to entry due to stringent regulatory requirements, but offers consistent opportunity density for accredited, agile providers with proven experience in international health logistics and federal compliance. Contractors with dual capabilities in both clinical diagnostics and expeditionary lab support are best positioned to compete for sustained, mission-critical awards.

Key Performance Metrics

Total Obligations

L12M
$0

Active Contracts

0

Awarded Contracts

L12M
0

Contractors Awarded

L12M
0

Year-over-Year Growth

-70.9%vs previous 12 months

Top Contractors & Agencies

Top Companies

1
QUEST DIAGNOSTICS INCORPORATED404 contracts
$147.8M
2
LABORATORY CORPORATION OF AMERICA267 contracts
$112.8M
3
FOUNDATION MEDICINE, INC.3 contracts
$21.9M
4
BAYLOR MIRACA GENETICS LABORATORIES LLC2 contracts
$11.6M
5
ARUP LABORATORIES INC13 contracts
$9.4M

Top Agencies

1
Department Of Veterans Affairs490 awards
$245.2M
2
Department Of Defense260 awards
$77.0M
3
247-NETWORK Contract Office 7 (36C247)1 award
$46.0M
4
Department Of Health And Human Services128 awards
$38.6M
5
260-NETWORK Contract Office 20 (36C260)6 awards
$17.1M

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NAICS 621511 FAQ

Frequently Asked Questions

NAICS code 621511 covers Medical Laboratories. This U.S. industry comprises establishments known as medical laboratories primarily engaged in providing analytic or diagnostic services, including body fluid analysis, generally to the medical profession or to the patient on referral from a health practitioner. Illustrative Examples: Blood analysis laboratories Medical pathology laboratories Medical bacteriological laboratories Medical testing laboratories Medical forensic laboratories Cross-References.

Recently Posted in Medical Laboratories

NAICS: 621511
New
Federal
Medical Technologist (ASCP/AMT Certified) StaffingThe contract requires the provision of a Medical Technologist certified by either ASCP or AMT to support clinical laboratory operations at a Veterans Affairs facility in Memphis, Tennessee, with a ZIP code of 38104. The technologist will be responsible for performing complex clinical tests, analyzing laboratory results, and maintaining strict quality control standards to ensure accurate and reliable diagnostic outcomes. This engagement is structured as a subcontract under NAICS code 621511, which categorizes it within medical and diagnostic laboratories. The opportunity was posted on July 11, 2026, with a response deadline of July 17, 2026, at 3:00 PM, and is managed by the 249-NETWORK Contract Office 9 under the Department of Veterans Affairs. There is no set-aside designation specified, and the place of performance is solely identified as Memphis, with no additional details provided for the office address or point of contact.
249-NETWORK Contract Office 9 (36C249)

POSTED

3 days ago

DEADLINE

in 3 days
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NAICS: 621511
New
Federal
Q301-- Lab Staffing Contract Path & LabThe Department of Veterans Affairs through the 249-NETWORK Contract Office 9 is seeking information from qualified vendors for laboratory staffing services at the Memphis Veterans Affairs Medical Center. This sources sought notice, identified by solicitation number 36C24926Q0309 and NAICS code 621511, aims to gather market insights to shape a future contract for comprehensive lab support services. The effort is focused on securing skilled personnel to ensure the delivery of high-quality diagnostic and testing services within the Memphis facility, with the place of performance clearly designated as Memphis, Tennessee, 38104. Responses are due by July 17, 2026, at 3:00 p.m. ET, with the notice originally posted on July 11, 2026. Primary contact for inquiries is Christina Curley, Contract Specialist, reachable via christina.curley@va.gov, and the solicitation is managed from the agency’s office in Murfreesboro, Tennessee, 37129. Although no specific set-aside classification is indicated, interested parties are encouraged to assess their capabilities against the anticipated staffing requirements for clinical laboratory operations. The purpose of this notice is not to solicit formal bids but to evaluate industry capacity, experience, and pricing, ensuring the eventual contract will meet the VA’s standards for efficiency, compliance, and patient care. Further details and submission guidelines can be accessed via the provided SAM.gov link.
249-NETWORK Contract Office 9 (36C249)

POSTED

3 days ago

DEADLINE

in 3 days
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NAICS: 621511
New
Federal
Pathologists Assistant StaffingThe contract seeks a certified Pathologists Assistant to support anatomical pathology services at the Department of Veterans Affairs facility in Memphis, Tennessee, with a zip code of 38104. The role involves performing gross examination, dissection, and specimen preparation under the direct supervision of a licensed pathologist, ensuring accurate and timely processing of pathological specimens for diagnostic purposes. The position is structured as a subcontract under NAICS code 621511 and is managed by the 249-NETWORK Contract Office 9 (36C249). The opportunity was posted on July 11, 2026, with a firm response deadline of July 17, 2026, at 3:00 PM. No set-aside designation is specified, and the place of performance is exclusively at the specified Memphis location.
249-NETWORK Contract Office 9 (36C249)

POSTED

3 days ago

DEADLINE

in 3 days
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NAICS: 621511
New
Federal
Phlebotomist / Medical Technician Staffing (11 Positions)The contract seeks to staff up to eleven Phlebotomists or Medical Technicians to support specimen collection, labeling, and transportation services across the Memphis Veterans Affairs Medical Center and its associated satellite clinics. These personnel will be responsible for ensuring accurate and timely handling of biological samples throughout the facility’s network, maintaining strict compliance with medical and safety protocols. The work is focused exclusively within the Memphis area, with the primary place of performance located at 38104, and all services must be delivered in alignment with VA standards and procedures. This is a subcontract opportunity posted on July 11, 2026, with responses due by July 17, 2026, and falls under NAICS code 621511 for medical laboratories. The contracting office is the 249-NETWORK Contract Office 9 (36C249) under the Department of Veterans Affairs, with no specific set-aside designation indicated. Contractors must be prepared to meet staffing requirements for eleven positions and deliver fully qualified, certified professionals capable of operating in a high-volume healthcare environment while ensuring patient safety and regulatory compliance. All work will be performed on-site at the Memphis VA and its satellite locations.
249-NETWORK Contract Office 9 (36C249)

POSTED

3 days ago

DEADLINE

in 3 days
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NAICS: 621511
New
Federal
Cytopreparation Technician StaffingThe contract calls for the provision of a qualified Cytopreparation Technician to support diagnostic operations within a pathology setting, specifically at the Department of Veterans Affairs facility in Memphis, Tennessee, with a ZIP code of 38104. The technician will be responsible for preparing cytology specimens, performing staining procedures, and ensuring the quality and consistency of staining results through rigorous quality control measures, all under the direct supervision of licensed pathology personnel. The role requires technical expertise in cytology preparation and adherence to standardized protocols to maintain the accuracy and reliability of diagnostic samples. This subcontract was posted on July 11, 2026, with a response deadline of July 17, 2026, at 3:00 PM Eastern Time, and falls under the NAICS code 621511, which classifies the activity as outpatient care centers focused on medical laboratories. The contracting office is the 249-NETWORK Contract Office 9 (36C249), and while no specific set-aside provisions or organization type are indicated, the position is essential to sustaining efficient and accurate diagnostic workflows in a clinical environment serving veterans. All work must be performed at the designated location in Memphis, and the contractor must ensure personnel are qualified, trained, and capable of operating within the stringent regulatory and operational standards of a federal healthcare facility.
249-NETWORK Contract Office 9 (36C249)

POSTED

3 days ago

DEADLINE

in 3 days
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NAICS: 621511
New
Federal
Clinical Laboratory Testing – T-SPOT.TB Assay PerformanceThe contract requires the performance of T-SPOT.TB interferon-gamma release assays for tuberculosis screening of Veterans Affairs employees and patients, to be conducted in a laboratory that is CLIA-certified and CAP-accredited with in-house validated protocols. All testing must adhere to strict quality standards to ensure accurate and reliable results for clinical decision-making. The work is under a subcontract arrangement and falls under NAICS code 621511, indicating it pertains to medical and diagnostic laboratories. The solicitation was posted on July 10, 2026, with a response deadline of July 27, 2026, and is managed by the Department of Veterans Affairs through the 256-NETWORK Contract Office 16. The place of performance and specific address details are not specified, but the laboratory must be capable of handling the volume and sensitivity requirements associated with VA patient and staff screening programs. The contract emphasizes compliance with regulatory certifications and internal validation procedures to maintain the integrity of test outcomes.
256-NETWORK Contract Office 16 (36C256)

POSTED

4 days ago

DEADLINE

in 13 days
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NAICS: 621511
New
Federal
Laboratory Quality Assurance and Surveillance ComplianceThe contract requires the implementation and maintenance of a comprehensive Quality Assurance and Quality Control plan that strictly aligns with the Quality Assurance Surveillance Plan, ensuring daily inspections are conducted to monitor performance and outcomes. Technical quality and timeliness must meet a minimum standard of 95 percent Acceptable Quality Level, demanding rigorous adherence to established protocols and consistent documentation of results. The work is focused on laboratory operations and compliance under the NAICS code 621511, indicating specialized clinical and diagnostic laboratory services. Performance is expected to take place in a location with zip code 95655, and the contract is structured as a subcontract under the Department of Veterans Affairs through the 261-NETWORK Contract Office 21. Interested parties must submit proposals by the deadline of July 31, 2026, with the opportunity posted on July 10, 2026, through the SAM.gov platform.
261-NETWORK Contract Office 21 (36C261)

POSTED

4 days ago

DEADLINE

in 18 days
View Details
NAICS: 621511
New
Federal
Sample Slide Submission and Quality ValidationThe contract titled Sample Slide Submission and Quality Validation requires the contractor to prepare and submit representative H&E-stained tissue slides from their laboratory for quality assessment by the Department of Veterans Affairs. These slides must meet specific technical and diagnostic standards to ensure consistency and reliability in histopathological evaluation, serving as a benchmark for quality control within VA facilities. The submission process is part of a broader effort to validate laboratory practices and maintain uniformity in pathological reporting across the VA healthcare system. The contract is classified as a subcontract under NAICS code 621511, indicating it pertains to medical and diagnostic laboratories. It was posted on July 10, 2026, with a response deadline of July 31, 2026, at 7:00 PM. Performance is expected to occur at a location with a zip code of 95655, though no specific city or state is provided. The contracting office is the 261-NETWORK Contract Office 21 under the Department of Veterans Affairs, operating under a general solicitation without a specific set-aside designation for small businesses or other categories. All submissions must align with VA expectations for sample handling, staining quality, and documentation, with no explicit point of contact listed for inquiries.
261-NETWORK Contract Office 21 (36C261)

POSTED

4 days ago

DEADLINE

in 18 days
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NAICS: 621511
Awarded
Federal
Q301--Genetic Testing Services for P&LMS, LR, ARThe contract, identified by solicitation number 36C25626Q0837, is for genetic testing services under the Department of Veterans Affairs, specifically to support the Central Arkansas Veterans Healthcare System. The scope includes the performance of three proprietary genetic tests—Renasight, Prospera, and Signatera—at a contractor-operated CLIA-certified and CAP-accredited laboratory, with no on-site testing required at VA facilities. The contractor is responsible for supplying all specimen collection kits, prepaid shipping labels, and courier coordination for daily pickups, while ensuring specimens are properly preserved and shipped to maintain integrity. Test results must be delivered securely via HIPAA- and VA-compliant methods within five business days of receipt, with a maximum specimen rejection rate of 2% and mandatory notification of any compromised samples within one business day. All data handling, reporting, and laboratory operations must adhere to CLIA, CAP, HIPAA, and VA Handbook 6500 and 1106.1 standards, with full compliance verified through ongoing quality assurance surveillance. The contract is structured as a five-year firm-fixed-price agreement with a one-year base period beginning July 1, 2026, and four one-year option periods extending through June 30, 2031, with an option to extend services under FAR 52.217-8 and 52.217-9. Award will be made using the Lowest Price Technically Acceptable methodology, where technical acceptability—defined by the contractor’s ability to perform all three required tests from an accredited lab, meet turnaround timelines, and supply all necessary materials—is assessed first; only technically acceptable offers proceed to price evaluation, with the lowest price securing award. Past performance, veterans involvement, and technical capability are key evaluation factors, with subcontracting to SDVOSB or VOSB entities encouraged but not weighted numerically. Attachments include a past performance questionnaire, contractor certification, insurance compliance documentation, and a Quality Assurance Surveillance Plan. The contract mandates strict compliance with security prohibitions on covered telecommunications equipment, federal tax regulations, and anti-trafficking requirements, with deviations applied to several clauses including SAM registration, taxes, and whistleblower protections. All deliverables are government property, and subcontractor engagement requires prior Contracting Officer approval, with all subcontractors bound to the same restrictions on data use and disclosure. The contracting officer, D. Rene’ Impey, serves as the primary point of contact, with electronic invo
256-NETWORK Contract Office 16 (36C256)

POSTED

4 days ago

DEADLINE

N/A
View Details
NAICS: 621511
New
Federal
Radiologic Technologist ServicesThe contract award is for radiologic technologist services to perform diagnostic imaging procedures including X-ray and mammography, with a strong emphasis on maintaining strict radiation safety protocols and ensuring the proper function and maintenance of imaging equipment. Services are required at a designated location in Polacca, Arizona, 86042, under a subcontract structure governed by the Buy Indian Set-Aside program, which prioritizes contracting opportunities for Native American-owned businesses within the Department of Health and Human Services, specifically the Phoenix Area Indian Health Service. The North American Industry Classification System code 621511 confirms the scope is limited to medical and diagnostic imaging services, and the solicitation was posted on July 10, 2026, with responses due by July 30, 2026. All work must comply with federal standards for healthcare delivery and radiation safety, and performance is targeted to support the healthcare needs of the Native American communities served by the Indian Health Service.
Phoenix Area Indian Health Svc

POSTED

4 days ago

DEADLINE

in 17 days
View Details
NAICS: 621511
New
Federal
Q301--T-SPOT.TB Assay TestingThe Department of Veterans Affairs, Network Contracting Office 16, intends to award a sole source, firm-fixed price purchase order to Quest Diagnostics for T SPOT.TB testing services, with the possibility of two optional extension years. The contract requires the performance of the T SPOT.TB assay, daily specimen pickup, secure transport, and full compliance with CLIA, CAP, and VA reporting standards. Quest Diagnostics is identified as the only responsible source capable of meeting all technical, regulatory, logistical, and stability requirements necessary to ensure timely and reliable testing without compromising VA screening operations. This decision is based on the unique combination of accreditation, validated assay performance, strict specimen stability windows, and daily courier logistics that no other provider can currently fulfill without introducing unacceptable risk. This notice serves as a formal announcement of intent to proceed without competition under FAR 6.302-1, but it invites interested parties to submit clear and convincing evidence demonstrating their ability to meet all requirements by July 26, 2026, at 7:00 a.m. CST. Responses must be submitted via email in Microsoft Word or PDF format to Contract Specialist William Shaver and must include documented proof of in-house assay capability, current CLIA and CAP accreditation, daily courier services, adherence to specimen stability timelines, and full compliance with VA reporting protocols. The Government will not acknowledge receipt or provide feedback on submissions, will not compensate for information provided, and retains full discretion to proceed with the sole source award regardless of any responses received. No telephone inquiries will be accepted, and this notice does not create any obligation on the part of the Government to award a contract.
256-NETWORK Contract Office 16 (36C256)

POSTED

4 days ago

DEADLINE

in 13 days
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NAICS: 621511
Closed
Federal
Clinical Laboratory Diagnostic Testing Services – Renasight Kidney Gene TestThe contract facilitates the provision of proprietary genetic testing services through the Renasight Kidney Gene test to support the diagnosis of kidney disease among Veterans. This subcontract encompasses the full lifecycle of specimen handling, including collection, processing, genetic analysis, and the secure generation and delivery of clinical reports to authorized providers. The services are designed to enable accurate, personalized diagnostic insights for kidney-related conditions, leveraging advanced genomic technology specifically validated for this clinical application. All operations must comply with stringent data security and privacy standards to protect Veteran health information. The contract is issued under the 246-NETWORK Contracting Office 6 within the Department of Veterans Affairs and is classified under NAICS code 621511 for clinical laboratory services. It is solicited as a subcontract with a narrow response window closing on July 13, 2026, indicating an urgent need to establish or expand capacity in genomic diagnostics within the VA healthcare system. Performance is not limited to a specific geographic location, allowing the contractor to operate wherever logistical and regulatory requirements are met. There is no set-aside classification, meaning all eligible entities may compete, and the focus is on delivering reliable, timely, and clinically actionable genetic test results to improve Veteran outcomes.
246-NETWORK Contracting Office 6 (36C246)

POSTED

4 days ago

CLOSED

about 14 hours ago
View Details

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