NAICS Code 621512: Diagnostic Imaging Centers
National industry
SBA small business size standard: $19 million in average annual receipts
Definition
This U.S. industry comprises establishments known as diagnostic imaging centers primarily engaged in producing images of the patient generally on referral from a health practitioner.
Government contracts for this service: PSC Q522 Radiology Services
Code facts
- Part of
-
-
62
-
621
-
6215
- 62151
-
6215
-
621
-
62
- Contract awards
- 183 In the last 12 months
- Contract obligations
- $79,001,853 In FY2025
NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.
Business activities under NAICS 621512
- CAT (computerized axial tomography) scanner centers
- Computer tomography (CT-SCAN) centers
- CT-SCAN (computer tomography) centers
- Dental X-ray laboratories
- Diagnostic imaging centers (medical)
- Laboratories, dental X-ray
- Laboratories, medical radiological or X-ray
- Laboratory testing services, medical radiological or X-ray
- Magnetic resonance imaging (MRI) centers
- Mammogram (i.e., breast imaging) centers
- Medical laboratories, radiological or X-ray
- Medical radiological laboratories
- Medical X-ray laboratories
- Mobile breast imaging centers
- Mobile X-ray facilities (medical)
- MRI (magnetic resonance imaging) centers
- Positron emission tomography (PET) scanner centers
- Radiological laboratories, medical
- Radiological laboratory services, medical
- Single photon emission computerized tomography (SPECT) centers
- Ultrasound imaging centers
- X-ray laboratories, medical or dental
Looking for another activity? Search the NAICS code lookup or browse business activities from A to Z.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $4,331,691 |
| FY2026 | $99,194,568 |
| FY2025 | $79,001,853 |
| FY2024 | $77,825,281 |
| FY2023 | $75,032,831 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Vetmed Group LLC | $38,633,314 | |
| 2 | Valor Network, Inc. | $17,168,613 | |
| 3 | Mystic Ventures Group LLC | $9,431,119 | |
| 4 | Government Imaging Services LLC | $6,772,247 | |
| 5 | Diagnostic Imaging Associates, Inc. | $4,454,126 | |
| 6 | Advanced Imaging Management, LLC | $3,023,220 | |
| 7 | Inner Vision Radiology LLC | $2,735,873 | |
| 8 | Redhawk Group International, LLC | $2,022,742 | |
| 9 | IS Healthcare LLC | $1,831,074 | |
| 10 | White Mountain Radiology, P.L.L.C. | $1,669,468 |
See the full FY2025 ranking of NAICS 621512 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Veterans Affairs | $71,061,114 | |
| 2 | Defense Health Agency | $15,543,060 | |
| 3 | Department of Health and Human Services | $14,953,279 | |
| 4 | Department of Justice | $1,806,409 | |
| 5 | Department of Homeland Security | $68,467 | |
| 6 | National Aeronautics and Space Administration | $58,387 | |
| 7 | Washington Headquarters Service | $34,380 | |
| 8 | Air Force | $1,162 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Q522 Radiology Services | $87,379,763 | |
| 2 | Q999 Other Medical Services | $4,232,589 | |
| 3 | Q403 Medical Evaluation and Screening Services | $3,038,489 | |
| 4 | Q301 Reference Laboratory Testing | $1,814,589 | |
| 5 | 6525 X-Ray Equipment and Supplies: Medical, Dental, Veterinary | $1,370,679 | |
| 6 | W065 Lease or Rental of Equipment: Medical, Dental, and Veterinary Equipment and Supplies | $1,356,330 | |
| 7 | Q509 Family & Internal Medicine Services | $740,800 | |
| 8 | Q527 Nuclear Medicine | $690,060 | |
| 9 | Q201 Medical – Managed Healthcare | $615,000 | |
| 10 | B537 Medical and Health Studies | $483,635 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Georgia | $12,667,070 | |
| 2 | Tennessee | $12,146,848 | |
| 3 | Florida | $12,071,099 | |
| 4 | Oklahoma | $8,929,536 | |
| 5 | California | $6,746,610 | |
| 6 | New York | $5,471,019 | |
| 7 | Texas | $4,868,887 | |
| 8 | Arizona | $3,804,322 | |
| 9 | New Jersey | $3,196,531 | |
| 10 | New Mexico | $2,498,361 | |
| 11 | Wisconsin | $2,353,560 | |
| 12 | Minnesota | $2,331,645 | |
| 13 | Arkansas | $1,658,717 | |
| 14 | West Virginia | $1,305,743 | |
| 15 | South Dakota | $1,283,755 | |
| 16 | North Carolina | $1,282,431 | |
| 17 | Maryland | $960,664 | |
| 18 | Virginia | $918,289 | |
| 19 | Missouri | $901,083 | |
| 20 | North Dakota | $757,525 | |
| 21 | Nevada | $718,950 | |
| 22 | Iowa | $620,882 | |
| 23 | Kentucky | $607,237 | |
| 24 | Nebraska | $583,773 | |
| 25 | Michigan | $541,278 | |
| 26 | South Carolina | $522,532 | |
| 27 | District of Columbia | $499,050 | |
| 28 | Ohio | $439,648 | |
| 29 | Guam | $353,935 | |
| 30 | Kansas | $302,910 | |
| 31 | Hawaii | $268,312 | |
| 32 | Washington | $251,516 | |
| 33 | Alabama | $189,000 | |
| 34 | Mississippi | $157,157 | |
| 35 | Oregon | $80,000 | |
| 36 | Louisiana | $71,438 | |
| 37 | Indiana | $62,738 | |
| 38 | Connecticut | $57,781 | |
| 39 | Utah | $55,650 | |
| 40 | Alaska | $44,956 | |
| 41 | Massachusetts | $3,250 |
Show all 41
Shares are of everything obligated under NAICS 621512 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 36 more
Latest 46 of 2,312 listed here. See the rest on GovTribe.
Size standard history
Federal Register rules that named this code
Proposed size standard changes
| Proposed rule | Published | Comments |
|---|---|---|
| Small Business Size Standards: Monetary-Based Industry Size Standards | Closed Oct 21, 2025No final rule found |
From the NAICS codes each rule's amendments to 13 CFR 121.201 name. Rules that print their size standard tables as images aren't listed.
Quick answers
What is NAICS 621512?
NAICS 621512 is Diagnostic Imaging Centers, a national industry in NAICS 62, Health Care and Social Assistance.
What is the NAICS code for dental X-ray laboratories?
The NAICS code for dental X-ray laboratories is 621512, Diagnostic Imaging Centers.
What is the NAICS code for medical X-ray laboratories?
The NAICS code for medical X-ray laboratories is 621512, Diagnostic Imaging Centers.
What is the NAICS code for ultrasound imaging centers?
The NAICS code for ultrasound imaging centers is 621512, Diagnostic Imaging Centers.
When did the size standard for NAICS 621512 last change?
The most recent Federal Register rule on record that names NAICS 621512 in the SBA's size standards is "Small Business Size Standards: Adjustment of Monetary-Based Size Standards, Disadvantage Thresholds, and 8(a) Eligibility Thresholds for Inflation" (87 FR 69118), published Nov 17, 2022 and effective Dec 19, 2022.
How much do federal agencies spend under NAICS 621512?
Federal contracts under NAICS 621512 obligated $79,001,853 in fiscal year 2025 and $335,386,224 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 621512?
The contractors with the most obligated under NAICS 621512 in fiscal years 2026 and 2027 are Vetmed Group LLC ($38,633,314); Valor Network, Inc. ($17,168,613); and Mystic Ventures Group LLC ($9,431,119).
Which agencies buy the most under NAICS 621512?
The agencies that obligated the most under NAICS 621512 in fiscal years 2026 and 2027 are Department of Veterans Affairs ($71,061,114), Defense Health Agency ($15,543,060) and Department of Health and Human Services ($14,953,279).
Which PSC codes are used with NAICS 621512?
The PSC codes with the most obligated under NAICS 621512 in fiscal years 2026 and 2027 are Q522 Radiology Services, Q999 Other Medical Services and Q403 Medical Evaluation and Screening Services.
Where is the work under NAICS 621512 performed?
By place of performance, the states with the most contract obligations under NAICS 621512 over the last 12 months are Georgia ($12,667,070), Tennessee ($12,146,848) and Florida ($12,071,099).
What is the latest contract opportunity under NAICS 621512?
The latest contract opportunity under NAICS 621512 is Q522--3T Mobile MRI Trailer and Technologist Services, solicitation from Veterans Integrated Service Network 8 (VHA), posted November 6, 2026.
On GovTribe
See everything under NAICS 621512
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
- Contacts who buy under this code
- Ask GovTribe AI about this code