NAICS Code 621511 Description

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.

More Details

NAICS Code 621511 - Medical Laboratories is a final level code of the “Health Care and Social Assistance” Sector. There are 11,423 companies verified as active in this industry in the USA with an estimated employment of 191,404 people.

Industry Sector

Health Care and Social Assistance

Total Companies


Verified Companies


Est. Employment


Annual Payroll


Total Revenue


SBA Size Standard

Annual Revenue Limit of $35,000,000

Use Data For:

  • Direct Mailing
  • Emailing
  • Calling
  • Research

Includes Free Sample & Industry Report

100% Phone-Verified, NCOA Processed, Accurate Data

Hierarchy Navigation for NAICS Code 621511

Parent Category (less specific)

Industry Examples of NAICS 621511

Common types of examples within NAICS Code 621511 - Medical Laboratories are:

  • Bacteriological laboratories, diagnostic
  • Bacteriological laboratories, medical
  • Biological laboratories, diagnostic
  • Blood analysis laboratories
  • Cytology health laboratories
  • DNA testing laboratories
  • Forensic laboratories, medical
  • Genetic testing laboratories
  • Laboratories, medical (except radiological, X-ray)
  • Laboratory testing services, medical (except radiological, X-ray)
  • Medical laboratories (except radiological, X-ray)
  • Medical laboratory (except radiological, X-ray)
  • Medical pathology laboratories
  • Mycology health laboratories
  • Parasitology health laboratories
  • Pathological analysis laboratories
  • Pathology laboratories, medical
  • Testing laboratories, medical
  • Toxicology health laboratories
  • Urinalysis laboratories

Industry Image

Example photo for industry NAICS 621511 - Medical Laboratories . This image represents an activity or product found in this industry.


For some business types, there may be a similar industry to NAICS Code 621511 - Medical Laboratories that is a better classification match. Establishments primarily engaged in:

Companies compiles comprehensive business data and executive contact leads for businesses within NAICS Code 621511 - Medical Laboratories . Some of the leading and most notable companies are listed below. To order a list of companies within NAICS Code 621511 - Medical Laboratories for marketing (postal mailing, telemarketing, emailing) or analytics-use, click on the link below to “Buy Business List”. Our data analysts are standing by to assist in your list setup and target marketing.

Industry Executives

Would you like to email executives in NAICS Code 621511 - Medical Laboratories ? Below are some of the common job titles available to be targeted.

  • Business Development
  • Chairman
  • C-Level
  • Director
  • Engineering
  • Executive Director
  • Facilities
  • Finance
  • Human Resource
  • IT
  • Manager
  • Marketing
  • Manufacturing
  • Operations
  • Owner
  • Partner
  • President
  • Principal
  • Purchasing
  • Sales
  • Vice President

For specific job title targeting, please provide details in the business list request form.

Executive Email List

Questions & Answers

  • What is the NAICS Code for Med Labs?

    Medical Laboratories are classified under NAICS Code 621511 - Medical Laboratories. This industry also includes blood analysis labs, biological labs, dna testing labs, genetic testing labs, parasitology labs and toxicology health labs.

  • What is the SBA NAICS 621511 revenue limit?

    Businesses with an annual revenue under $35,000,000 are considered small businesses by SBA.

  • How many active businesses operate in NAICS Code 621511?

    There are 11,423 verified business locations operating primarily in this industry.

  • What was the total revenue for NAICS Code 621511?

    In 2017 the total revenue for Medical Laboratories was $36,443,596,000

  • What was the annual payroll for NAICS Code 621511?

    In 2017 the annual payroll for Medical Laboratories was $11,800,729,000

  • How many people work in NAICS Code 621511?

    The number of reported paid employees is 191,404.