01 / NAICS Market Profile
NAICS 621999 All Other Miscellaneous Ambulatory Health Care Services Federal Contracts
North American Industry Classification System code 621999
Federal contract activity classified under All Other Miscellaneous Ambulatory Health Care Services across FY 2019–FY 2025. Net obligations include both new obligations and subsequent deobligations.
02 / Market Size
How large is the NAICS 621999 federal market?
03 / Spending Trend
NAICS 621999 contract spending by fiscal year
Annual obligations, activity, and participation across the same FY 2019–FY 2025 profile window.
Latest closed fiscal year$336.53M
FY 2025| Fiscal year | Obligations | Actions | Vendors | Customers | Change |
|---|---|---|---|---|---|
| FY 2019 | $262.78M | 1,360 | 267 | 37 | — |
| FY 2020 | $414.06M | 1,511 | 278 | 42 | +57.6% |
| FY 2021 | $436.69M | 1,630 | 251 | 42 | +5.5% |
| FY 2022 | $1.03B | 1,793 | 241 | 39 | +135.1% |
| FY 2023 | $702.61M | 1,545 | 269 | 46 | −31.6% |
| FY 2024 | $297.00M | 1,659 | 289 | 47 | −57.7% |
| FY 2025 | $336.53M | 1,539 | 278 | 42 | +13.3% |
04 / Top Federal Customers
Which federal agencies buy most in this industry?
Ranked by net obligations during FY 2019–FY 2025.
| Federal customer | Code | Obligations | Actions | Vendors | Market share |
|---|---|---|---|---|---|
| U.S. IMMIGRATION AND CUSTOMS ENFORCEMENT | 7012 | $732.91M | 107 | 12 | 21.1% |
| CENTERS FOR DISEASE CONTROL AND PREVENTION | 7523 | $539.57M | 77 | 8 | 15.5% |
| DEFENSE HEALTH AGENCY (DHA) | 97DH | $414.59M | 1,877 | 41 | 11.9% |
| OFFICE OF THE ASSISTANT SECRETARY FOR ADMINISTRATION (ASA) | 7570 | $317.31M | 188 | 15 | 9.1% |
| DEPT OF THE AIR FORCE | 5700 | $281.06M | 2,955 | 81 | 8.1% |
| DEPT OF THE ARMY | 2100 | $264.17M | 883 | 117 | 7.6% |
| INDIAN HEALTH SERVICE | 7527 | $245.34M | 892 | 97 | 7.1% |
| U.S. CUSTOMS AND BORDER PROTECTION | 7014 | $216.23M | 78 | 6 | 6.2% |
| HEALTH RESOURCES AND SERVICES ADMINISTRATION | 7526 | $78.90M | 172 | 14 | 2.3% |
| FEDERAL ACQUISITION SERVICE | 4732 | $71.52M | 74 | 2 | 2.1% |
05 / Contracting Offices
Which contracting offices buy in NAICS 621999?
Ranked by net obligations during FY 2019–FY 2025.
| Office | Code | Agency | Obligations | Actions | Vendors | Market share |
|---|---|---|---|---|---|---|
| DETENTION COMPLIANCE AND REMOVALS | 70CDCR | U.S. IMMIGRATION AND CUSTOMS ENFORCEMENT | $729.96M | 98 | 8 | 21.0% |
| CDC OFFICE OF ACQUISITION SERVICES | 75D301 | CENTERS FOR DISEASE CONTROL AND PREVENTION | $539.57M | 77 | 8 | 15.5% |
| PROGRAM SUPPORT CENTER ACQ MGMT SVC | 75P001 | OFFICE OF THE ASSISTANT SECRETARY FOR ADMINISTRATION (ASA) | $317.31M | 188 | 15 | 9.1% |
| DEFENSE HEALTH AGENCY | HT0014 | DEFENSE HEALTH AGENCY (DHA) | $163.68M | 577 | 27 | 4.7% |
| MISSION SUPPORT CONTRACTING DIVISION | 70B06C | U.S. CUSTOMS AND BORDER PROTECTION | $111.76M | 45 | 3 | 3.2% |
| BORDER ENFORCEMENT CONTRACTING DIVISION | 70B03C | U.S. CUSTOMS AND BORDER PROTECTION | $104.45M | 30 | 1 | 3.0% |
| W40M USA HCA | W81K04 | DEPT OF THE ARMY | $100.30M | 53 | 12 | 2.9% |
| DEFENSE HEALTH AGENCY | HT9406 | DEFENSE HEALTH AGENCY (DHA) | $83.41M | 479 | 21 | 2.4% |
| INDIAN HEALTH SERVICE | 75H713 | INDIAN HEALTH SERVICE | $78.49M | 106 | 5 | 2.3% |
| GSA FAS AAS REGION 7 | 47QFWA | FEDERAL ACQUISITION SERVICE | $71.52M | 74 | 2 | 2.1% |
06 / Top Vendors
Which contractors lead the NAICS 621999 market?
| Vendor | Obligations | Actions | Customers | Market share | Latest activity |
|---|---|---|---|---|---|
| STG INTERNATIONAL, INC. | $731.11M | 114 | 3 | 21.0% | Jun 18, 2025 |
| WALGREEN CO. | $306.33M | 17 | 3 | 8.8% | May 8, 2025 |
| CVS PHARMACY, INC. | $185.31M | 15 | 1 | 5.3% | May 1, 2025 |
| SERVEFED INC. | $121.96M | 106 | 3 | 3.5% | Sep 24, 2025 |
| COMPREHENSIVE HEALTH SERVICES, LLC | $109.86M | 38 | 1 | 3.2% | Sep 27, 2025 |
| AMI EXPEDITIONARY HEALTHCARE (USA) LLC | $104.45M | 30 | 1 | 3.0% | May 5, 2025 |
| NATIONAL MARROW DONOR PROGRAM | $78.70M | 52 | 3 | 2.3% | Sep 16, 2025 |
| COGNITO SYSTEMS, LLC | $68.12M | 19 | 1 | 2.0% | Sep 18, 2025 |
| DESTINY MANAGEMENT SERVICES LLC | $67.85M | 388 | 3 | 2.0% | Sep 30, 2025 |
| HEALTH PARTNERS MGMT GROUP | $65.84M | 657 | 3 | 1.9% | Sep 29, 2025 |
07 / Product and Service Mix
What products and services are purchased under NAICS 621999?
| PSC | Description | Obligations | Actions | Vendors | Share |
|---|---|---|---|---|---|
| Q201 | MEDICAL- GENERAL HEALTH CARE | $1.01B | 1,435 | 119 | 29.0% |
| Q999 | MEDICAL- OTHER | $940.96M | 2,820 | 273 | 27.1% |
| Q701 | SPECIALIZED MEDICAL SUPPORT | $575.54M | 643 | 42 | 16.6% |
| Q802 | CLERICAL MEDICAL SUPPORT | $230.96M | 1,715 | 31 | 6.6% |
| Q601 | MEDICAL CODING AND AUDITING | $136.36M | 674 | 21 | 3.9% |
| Q403 | MEDICAL- EVALUATION/SCREENING | $112.29M | 408 | 61 | 3.2% |
| Q508 | MEDICAL- HEMATOLOGY | $71.11M | 23 | 1 | 2.0% |
| Q602 | MEDICAL RECORDS | $62.37M | 253 | 18 | 1.8% |
| Q801 | MEDICAL APPOINTING SERVICES | $58.88M | 458 | 17 | 1.7% |
| U099 | EDUCATION/TRAINING- OTHER | $52.08M | 29 | 3 | 1.5% |
08 / Buying Pattern
How does the government buy in NAICS 621999?
| Common action type | Obligations | Actions |
|---|---|---|
| DELIVERY ORDER | $1.29B | 6,184 |
| PURCHASE ORDER | $185.99M | 2,384 |
| DEFINITIVE CONTRACT | $1.98B | 1,994 |
| BPA CALL | $22.77M | 475 |
09 / Recent Contract Awards
What was awarded most recently in NAICS 621999?
10 / Market Interpretation
How should contractors evaluate this market?
Start with the spending direction
Compare annual obligations with actions and vendor participation. Growth driven by only a few large actions represents a different opportunity from broad, recurring demand.
Follow the actual buyers
Move from federal customers to contracting offices. Offices reveal where acquisition responsibility and recurring purchasing activity are concentrated.
Measure accessible demand
Use competition, small-business participation, incumbent vendors, and PSC mix before treating the full $3.48B market as addressable.