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.
MEDAIRE INC
INFLIGHT MEDICAL CONTROL AND LOGISTIC SUPPORT
VETERAN CLINICAL SOLUTIONS, LLC
MEDICAL EXAM ADMINISTRATIVE SERVICES
JOHNSON ASSOCIATES SYSTEMS, INC
PROSTHETIC FITTER SVCS HUNTINGTON WV VAMC
FONEMED LLC
NURSE TRIAGE TELEPHONE SERVICE AT WHITERIVER INDIAN HOSPITAL, ARIZONA
BUSY BODDY LLC
OPTICS CONSULTING
QUEST DIAGNOSTICS CLINICAL LABORATORIES, INC.
DRUG TESTING SERVICES
OZARK MEDICAL INC
IONM SERVICES POP: 10/1/23 TO 9/30/24
HIGH ANGLE RAPID EXTRICATION MODULE SUPPORT TEAM LLC
O252, LABOR MOUNTAIN, WAOWF000795, MESU, MEDICAL SUPPORT UNIT;
SERVICE EXTERNE DE PREVENTION ET DE PROTECTION SECUREX-EXTERNE DIENST VOOR PREVENTIE EN BESCHERMING SECUREX
JAS/HR - PREVENTION SERVICES AND EAP 2026
QUEST DIAGNOSTICS CLINICAL LABORATORIES, INC.
FY25 REQUIREMENTS - QUEST DIAGNOSTICS DFW
PEMBROOKE OCCUPATIONAL HEALTH, INC.
MISSION CRITICAL - EXECUTING COURT ORDERS AND ARREST WARRANTS FY26 HRD DRUG AND ALCOHOL LAB COLLECTION (DOI TO)
BACKCOUNTRY RESPONSE, LLC
O681, LOWER SUGARLOAF, WAOWF000797, MESU, MEDICAL SUPPORT UNIT;
OZARK MEDICAL INC
IONM SERVICES BASE IDC AWARD
SPECIALTYCARE IOM SERVICES, LLC
NEUROMONITORING SERVICES OY2
CHENEGA RELIABLE SERVICES LLC
DRUG AND ALCOHOL COLLECTION AND TESTING SERVICES (DACTS) FOR THE NNSA PRODUCTION OFFICE IN AMARILLO, TX AND THE Y-12 NATIONAL SECURITY COMPLEX IN OAKRIDGE, TN.
QUEST DIAGNOSTICS CLINICAL LABORATORIES, INC.
QUEST DFW OY2 FY26,10/1 - 2/28 FUNDING
PRECISION MONITORING LLC
VISN 12 CARDIAC MONITORING SERVICES
HEALTHNET AEROMEDICAL SERVICES, INC.
INMATE THOMAS, LIONEL # 34042-032 FLIGHT FROM SJMH TO RUBY MEMORIAL HOSPITAL
HEALTHNET AEROMEDICAL SERVICES, INC.
INMATE NELSON, JUSTIN #57148-177 11-02-2025 FLIGHT FROM SJMH TO MON HEALTH GENERAL HOSPITAL
EMPLOYERS CHOICE ONLINE INC.
FOREST-WIDE HEARING CONSERVATION/TESTING FOR THE WHITE MOUNTAIN NATIONAL FOREST.
PRECISION MONITORING LLC
VISN 12 CARDIAC MONITORING SERVICES
HOPE CAPITAL LLC
EO14042 DOT PHYSICALS AND TESTING PROGRAM MANAGEMENT
FORENSIC DRUG & ALCOHOL TESTING LLC
PASV - FORENSIC DRUG & ALCOHOL TESTING BLIND QUALITY CONTROL
AMERICAN INDIAN ASSOCIATION OF TUCSON, INC
STEVENS BILL FUNDING
PICC US VASCULAR ACCESS SPECIALISTS LLC
ON-CALL PICC LINE INSERTION - ORDERING PERIOD 2.