All Interior markets
NAICS 621498 · All Other Outpatient Care Centers

Top Interior all other outpatient care centers contractors

In the 12 months ending Oct 5, 2026, the Department of the Interior obligated $5.4M in net prime contract dollars under NAICS 621498, down 41.9% from $9.3M in the preceding 12 months. 4 prime contractors received positive obligations, and 2 of them accounted for 80% of that spend.

Prime contracts funded by the Department of the Interior. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.

Net obligations, latest 12 months
$5.4M
down 41.9% vs. $9.3M
Prime contractors
4
With positive obligations
Top 8 primes’ share
100.0%
Of positive obligations
Awards with activity
16
16 in the prior 12 months

Obligations by fiscal year

Net prime contract obligations by federal fiscal year (October to September).

FY2022
$4.9M
FY2023
$4.6M
FY2024
$2.6M
FY2025
$9.3M
FY2026
$5.4M

Top Interior contractors for NAICS 621498

Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.

Top contractors, Interior NAICS 621498
#ContractorLatest 12 moPrior 12 moShareRank change
1QTC Medical Services Inc$3.5M$4.7M65.6%—
2STG International, Inc.$985K$1.3M18.3%▲ 1
3EL RIO Santa Cruz Neighborhood Health Center Inc.$608K$011.3%New
4Acuity-CHS, LLC$260K$2.3M4.8%▼ 2

What changed in the last 12 months

Contractors with the largest change in reported obligations versus the preceding 12 months.

Largest gains

  • EL RIO Santa Cruz Neighborhood Health Center Inc.
    $0 → $608K (+$608K) · now #3

Largest declines

  • Acuity-CHS, LLC
    $2.3M → $260K (−$2.1M) · now #4
  • QTC Medical Services Inc
    $4.7M → $3.5M (−$1.2M) · now #1
  • North Country Healthcare, Inc.
    $972K → $0 (−$972K) · no latest-period obligations

New to this market

1 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:

New contractors
ContractorFirst obligationLatest 12 mo
EL RIO Santa Cruz Neighborhood Health Center Inc.Jun 29, 2026$608K

Where the money comes from

Funding sub-agencies within the Department of the Interior, latest 12 months. The funding organization can differ from the office that runs the requirement.

Funding sub-agencies
Funding sub-agencyLatest 12 moPrior 12 moChange
Departmental Offices$2.8M$4.7MDown $1.9M (40.6%)
National Park Service$2.6M$2.7MDown $119K (4.3%)

Potential recompetes

Large awards in this market whose current period of performance ends in the next 18 months. Treat these as research leads: options, extensions, and follow-on vehicles often change the timing.

Awards ending in the next 18 months
AwardIncumbentObligatedCurrent end
140P1422C0010
STG International, Inc.
THE WORK WILL CONSIST OF TOTAL OPERATION OF ONE YEAR-ROUND AND TWO SEASONAL GOVERNMENT-OWNED MEDICAL CLINICS TO PROVIDE ONGOING PRIMARY, URGENT, AND COMMUNITY HEALTH CARE TO PARK…
$4.8MDec 31, 2026
140P1521C0009
EL RIO Santa Cruz Neighborhood Health Center Inc.
GRCA CLINIC OPERATIONS FY21
$4.5MDec 31, 2026
140D0426F1053
QTC Medical Services Inc
MEDICAL QUALIFICATION DETERMINATION SERVICES
$2.5MAug 11, 2027

Common questions

Who are the top Interior contractors for NAICS 621498?

In the latest 12 months, QTC Medical Services Inc ($3.5M), STG International, Inc. ($985K), EL RIO Santa Cruz Neighborhood Health Center Inc. ($608K) received the most Interior obligations for all other outpatient care centers.

How concentrated is this market?

The eight largest primes held 100.0% of positive obligations, and QTC Medical Services Inc alone held 65.6%. 1 contractors won their first obligations in this market during the latest 12 months.

Are any large Interior NAICS 621498 contracts ending soon?

3 of the largest awards in this market reach their current end date in the next 18 months. The first is 140P1422C0010 (STG International, Inc., $4.8M obligated), ending Dec 31, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.

Related markets

Figures are net obligations on prime contracts (award types A–D) from USAspending.gov, grouped by funding agency and the NAICS code on each award. Net obligations include deobligations and corrections, so they can differ from positive-obligation totals. See methodology.

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