NAICS 621999 — ALL OTHER MISCELLANEOUS AMBULATORY HEALTH CARE SERVICES
Federal contract awards classified under NAICS code 621999 (ALL OTHER MISCELLANEOUS AMBULATORY HEALTH CARE SERVICES) cover 228 unique federal contracts (255 total action records) from USASpending.gov. The top contractors, awarding agencies, and geographic concentration below are aggregated from the highest-value awards in this market — the right view for sizing competition and identifying incumbents.
Top Contractors in NAICS 621999
Largest recipients of federal contract dollars in this NAICS code (ranked by total obligated value). These are the incumbent competitors to know if you sell into this market.
| Contractor | Awards | Total Obligated |
|---|---|---|
| STG INTERNATIONAL, INC. | 2 | $659.9M |
| SERVEFED INC. | 4 | $87.3M |
| THE ARORA GROUP, INC. | 1 | $54.3M |
| CG SERVICES LLC | 1 | $43.9M |
| QTC MEDICAL SERVICES INC | 1 | $43.0M |
| INGENESIS INC | 1 | $37.6M |
| KADIAK LLC | 1 | $28.3M |
| LONGVIEW INTERNATIONAL TECHNOLOGY SOLUTIONS, INC. | 1 | $27.4M |
| CHENEGA HEALTHCARE SERVICES LLC | 1 | $19.9M |
| DESTINY MANAGEMENT SERVICES, LLC | 6 | $19.0M |
Top Awarding Agencies
Federal agencies that obligate the most spending in NAICS 621999. Click any agency to see its full contract portfolio, top contractors, and sub-agencies.
| Agency | Awards | Total Obligated |
|---|---|---|
| Department of Homeland Security | 16 | $792.5M |
| Department of Health and Human Services | 37 | $236.7M |
| Department of Defense | 55 | $88.8M |
| General Services Administration | 1 | $43.9M |
| Department of Veterans Affairs | 59 | $39.6M |
| Department of Energy | 6 | $22.3M |
| Department of Transportation | 3 | $13.6M |
| National Aeronautics and Space Administration | 3 | $13.1M |
| Department of Justice | 23 | $5.2M |
| Department of the Interior | 7 | $1.8M |
Geographic Concentration
States where NAICS 621999 contract work is performed, ranked by total obligated value. Useful for sizing the local market and identifying state-level competitors.
| State | Awards | Total Obligated |
|---|---|---|
| VA | 22 | $715.4M |
| MD | 9 | $159.6M |
| TX | 14 | $59.6M |
| LA | 2 | $54.3M |
| PA | 6 | $45.3M |
| FL | 9 | $33.2M |
| CO | 10 | $30.5M |
| GA | 2 | $29.0M |
| NM | 5 | $22.2M |
| DC | 11 | $16.4M |
Most Recent Awards
DT-TRAK CONSULTING, INC.
PURCHASE ORDER FOR LABORATORY TECHNOLOGIST SERVICES
DT-TRAK CONSULTING, INC.
PURCHASE ORDER FOR LABORATORY TECHNOLOGIST SERVICES
QTC MEDICAL SERVICES INC
TAS::75 4552 001::TAS PRIVATE PROVIDER NETWORK OF MEDICAL SERVICES
HEALTHTRONICS STONE SOLUTIONS, LLC
EXTRACORPOREAL SHOCKWAVE LITHOTRIPSY (ESWL) TREATMENT LEASE SERVICE
PEMBROOKE OCCUPATIONAL HEALTH, INC.
MISSION CRITICAL - EXECUTING COURT ORDERS AND ARREST WARRANTS FY26 HRD DRUG AND ALCOHOL LAB COLLECTION (DOI TO)
All Unique Contracts in NAICS 621999
Showing 228 unique contracts (one entry per PIID, deduped from modifications) sorted by total dollars obligated.
LINE SCIENCE LLC
TVHS PICC LINE NURSES FP IDIQ EXERCISING ORDERING PERIOD
DT-TRAK CONSULTING, INC.
PURCHASE ORDER FOR LABORATORY TECHNOLOGIST SERVICES
OZARK MEDICAL INC
IONM HOUSTON
SHADOWBOX CONSULTING ASSOCIATES LLC
MEDICAL APPOINTMENT CLERKS ( 3 FTE)
TRANSPLANT COORDINATORS OF AMERICA INC
ORGAN MONITORING LISTING
MINDLEAF TECHNOLOGIES INC.
PEBLO ASSISTANT SERVICES
DILLIGAS CORP
1 FULL TIME EQUIVALENT MEDICAL OFFICE CLERK
DAWSON CMS, LLC
THESE SERVICES ARE REQUIRED TO PROVIDE A WIDE RANGE OF BEHAVIORAL HEALTH, MEDICAL, AND DENTAL NON-CLINICAL CASE MANAGEMENT AND ADMINISTRATION SERVICES, INCLUDING WITH BEHAVIORAL HEALTH, MEDICAL OR DENTAL NEEDS REQUIRING FOLLOW UP APPOINTMENTS.
DILLIGAS CORP
MEDICAL OFFICE CLERK
HEALTHTRONICS STONE SOLUTIONS, LLC
EXTRACORPOREAL SHOCKWAVE LITHOTRIPSY (ESWL) TREATMENT LEASE SERVICE
SERVEFED INC.
LANGLEY RESEARCH CENTER (LARC) OCCUPATIONAL HEALTH SUPPORT SERVICES III
NING SOLUTIONS, INC.
DOI WELLNESS CENTER NURSING SUPPORT
QUEST DIAGNOSTICS CLINICAL LABORATORIES, INC.
HRD-26-061 QUEST 4/1/26-3/31/27
HEALTHTRONICS STONE SOLUTIONS, LLC
MOBILE LITHOTRIPSY SERVICES
ANTHONY & ASSOCIATES, INC.
PAIN MANAGEMENT POSITIONS.
QUEST DIAGNOSTICS CLINICAL LABORATORIES, INC.
THE PURPOSE OF THIS DELIVER/TASK ORDER IS TO ESTABLISH A LAB ORDER FOR LABORATORY ANALYSIS SERVICES AT FIXED UNIT PRICES UNDER THE DOI LAB IDIQ.
SPECIALTYCARE CARDIOVASCULAR RESOURCES, LLC
BLOOD SERVICES
PEMBROOKE OCCUPATIONAL HEALTH, INC.
DRUG TESTING SERVICES
NAPHCARE INC
FY26 B2 NAPHCARE OUTSIDE MEDICAL SVCS DEC 25
NATUS MEDICAL INCORPORATED
NATUS EEG/SLEEP CLINIC MAINTENANCE SERVICE (BASE + 4)
AVMEDICAL LLC
MOBILE CARDIAC OUTPATIENT TELEMETRY SERVICES
QUEST DIAGNOSTICS CLINICAL LABORATORIES, INC.
DRUG TESTING SERVICES
AIR EMS INC
MISSION CRITICAL IN SUPPORT OF LAW ENFORCEMENT ACTIVITIES IN-FLIGHT PARAMEDICS FOR JUSTICE PRISONER AND ALIEN TRANSPORTATION SYSTEM (JPATS) IN OKLAHOMA CITY
FORENSIC DRUG & ALCOHOL TESTING LLC
PROCURE FORENSIC DRUG AND ALCOHOL TESTING SERVICES.
PRECISION MONITORING LLC
VISN 12 CARDIAC MONITORING SERVICES