> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/naics/621512/ # NAICS code 621512: Diagnostic Imaging Centers The companies classified under NAICS 621512, where they are based, how big they are and how the code maps to SIC. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** NAICS 621512 is the code for Diagnostic Imaging Centers, in sector 62: Health Care and Social Assistance. The companies counted under it are mostly very small: 66% have 50 or fewer employees, and 81% are headquartered in the United States. ## What is NAICS 621512? NAICS 621512 is the code for Diagnostic Imaging Centers. It belongs to sector 62: Health Care and Social Assistance. NAICS, the North American Industry Classification System, is the standard U.S. government agencies use to sort businesses by what they mainly do, and each digit narrows the category. Most of the companies counted also carry SIC 8071, Medical laboratory, in the older SIC system (90%). - 66% of the companies counted have 50 or fewer employees, and the middle one is in the 11 to 50 range. - The largest group is headquartered in the United States (81%). - Most were founded in the 2010s (38%), then the 2000s (28%). **Figure: How NAICS 621512 is built.** The code 621512 split into its parts: sector 62, then subsector, industry group, NAICS industry and U.S. industry. *The six digits of NAICS 621512. Each digit narrows the category.* ## Which companies are classified under NAICS 621512? The biggest by headcount range include Tower Health, Unipath Specialty Laboratory, Marshall Medical Center, Clearmedi Healthcare and Labo - Laboratório Oliveira. Names link to a company profile where we have one. | Company | Headquarters | Employees | | --- | --- | --- | | Tower Health | West Reading, PA | 10,001+ | | Unipath Specialty Laboratory | Ahmedabad, India | 1,001 to 5,000 | | Marshall Medical Center | Placerville, CA | 1,001 to 5,000 | | Clearmedi Healthcare | Gurgaon, India | 1,001 to 5,000 | | Labo - Laboratório Oliveira | Vitoria Da Conquista, Brazil | 201 to 500 | | Overjet | Boston, MA | 51 to 200 | | Sound Image | Escondido, CA | 51 to 200 | | Prime Diagnostic Imaging | Dallas, TX | 51 to 200 | | Noa Diagnostics | Sysosset, NY | 51 to 200 | | Clinica Lucilo Avila Jr | Recife, Brazil | 51 to 200 | | City X-Ray And Scan Clinic | New Delhi New Delhi, India | 51 to 200 | | Mobile Images | Chattanooga, TN | 51 to 200 | | Meridian Medical Services | Indianapolis, IN | 51 to 200 | | H&h X-Ray Services | West Monroe, LA | 51 to 200 | | Georgian Radiology Consultants | Barrie, Canada | 51 to 200 | | Ct Radiology Complex | Bayamon, United States | 51 to 200 | | Piur Imaging | Vienna, Austria | 11 to 50 | | Rayence | Closter, NJ | 11 to 50 | | Micro X-Ray | Santa Cruz, CA | 11 to 50 | | Mci Diagnostic Center | Richardson, TX | 11 to 50 | | Imperium | Beltsville, MD | 11 to 50 | | Reveal Diagnostics | San Francisco, CA | 11 to 50 | | Oasis Pregnancy Care Centers | Land O Lakes, FL | 11 to 50 | | Zoom Diagnostic Imaging | Enid, OK | 11 to 50 | | Fmi Medical Systems | Solon, OH | 11 to 50 | The table shows the 25 biggest by headcount range, with ties broken by audience size. The charts and percentages below cover every company counted for this page, not just these 25, and companies with fewer than 11 employees are not counted. Headquarters is the location on each company's public profile. ## Where are NAICS 621512 companies based? The largest groups are headquartered in the United States (81%), India (8%) and Brazil (6%). **Figure: Where companies in NAICS 621512 are based.** Bars for the share of counted companies in NAICS 621512 headquartered in each country: United States 81%, India 8%, Brazil 6%. *Share of counted companies in NAICS 621512 by headquarters country.* ## How big are the companies counted for NAICS 621512? 66% of them have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. **Figure: Size of companies in NAICS 621512.** Seven columns for the share of counted companies in NAICS 621512 in each employee range: 11 to 50 66%, 51 to 200 24%, 201 to 500 2%, 501 to 1,000 0%, 1,001 to 5,000 6%, 5,001 to 10,000 0%, 10,001+ 2%. *Share of counted companies in NAICS 621512 in each employee range.* ## How do NAICS 621512 companies describe themselves? A code is assigned by classification, and a company does not choose its own, so the label a company uses for itself can differ. The most common labels here are Hospitals and Health Care (48%), Medical Practices (14%) and Medical Equipment Manufacturing (6%). **Figure: How companies in NAICS 621512 describe themselves.** Bars for the share of counted companies in NAICS 621512 that give each industry on their public profile: Hospitals and Health Care 48%, Medical Practices 14%, Medical Equipment Manufacturing 6%, Health; Wellness and Fitness 4%, IT Services and IT Consulting 4%, Oil and Gas 4%. *Share of counted companies in NAICS 621512 by the industry they list on their public profile.* ## NAICS 621512 and the SIC system NAICS replaced SIC in 1997, but the two do not line up one to one: companies filed under one NAICS code can carry several SIC codes. These are the ones seen most. | Code | Title | Share of counted | | --- | --- | --- | | [SIC 8071](https://enrich.chat/naics/621511/) | Medical laboratory | 90% | | [SIC 8099](https://enrich.chat/naics/621999/) | Health and allied services | 4% | | SIC 3861 | Manufacturing photographic equipment and supplies | 2% | | [SIC 8062](https://enrich.chat/naics/622110/) | General hospital | 2% | | SIC 8621 | Professional organization | 2% | ## Where NAICS codes come from NAICS is maintained by the U.S. Census Bureau with Canada and Mexico and revised every five years; the current edition is NAICS 2022. To check exactly what a code includes, search the [official NAICS index](https://www.census.gov/naics/) or read the Census Bureau's [guide to understanding NAICS](https://www.census.gov/programs-surveys/economic-census/year/2022/guidance/understanding-naics.html). Pick a code by what a company mostly does, not by who it sells to. ## How do you reach the people at NAICS 621512 companies? The people to talk to are usually operations, IT and finance leaders. You can build the list from this code in three prompts to your AI agent. ### 1. Count them (free) Counting who matches never uses credits. ```text Use www.enrich.chat to count the companies with NAICS code 621512 (Diagnostic Imaging Centers) ``` ### 2. Find the people (5 credits per person) Name the roles you sell to. Each person returned is 5 credits, and name, title and company are included. ```text Use www.enrich.chat to find the operations, IT and finance leaders at companies with NAICS code 621512, with their titles ``` ### 3. Get their work emails (10 credits each) An email is 10 credits only when one is found. Every email comes with a status: verified, catch-all or unknown. ```text Use www.enrich.chat to find the work emails for these people and tell me which ones are verified ``` ## More to explore Codes next to it: [NAICS 621511: Medical Laboratories](https://enrich.chat/naics/621511/) Others in sector 62: [NAICS 621111: Offices of Physicians](https://enrich.chat/naics/621111/)[NAICS 621999: All Other Miscellaneous Ambulatory Health](https://enrich.chat/naics/621999/)[NAICS 621210: Offices of Dentists](https://enrich.chat/naics/621210/)[NAICS 621610: Home Health Care Services](https://enrich.chat/naics/621610/)[NAICS 621498: All Other Outpatient Care Centers](https://enrich.chat/naics/621498/)[NAICS 622110: General Medical and Surgical Hospitals](https://enrich.chat/naics/622110/)[NAICS 621340: Offices of Physical, Occupational and Speech](https://enrich.chat/naics/621340/)[NAICS 623990: Other Residential Care Facilities](https://enrich.chat/naics/623990/) ## Frequently asked questions ### What is NAICS code 621512? NAICS 621512 is the code for Diagnostic Imaging Centers, in sector 62: Health Care and Social Assistance. ### What is the SIC code for NAICS 621512 (Diagnostic Imaging Centers)? 90% of the companies counted carry SIC 8071 (Medical laboratory), but the two systems do not map one to one. ### Which companies are classified under NAICS 621512? The biggest by headcount range include Tower Health, Unipath Specialty Laboratory, Marshall Medical Center, Clearmedi Healthcare and Labo - Laboratório Oliveira. The page lists 25 with links to their profiles where we have them. ### Where are NAICS 621512 companies based? The largest groups are headquartered in the United States (81%), India (8%) and Brazil (6%). ### How big are the companies in NAICS 621512? 66% have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. ### Is NAICS 621512 the same as a SIC code? No. NAICS replaced SIC as the U.S. federal standard in 1997, and the two do not map one to one. The SIC code seen most among these companies is 8071. ## Try this prompt Find the people at NAICS 621512 companies ```text Use www.enrich.chat to find the operations, IT and finance leaders at companies with NAICS code 621512, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [NAICS 621511](https://enrich.chat/naics/621511/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)