Top Interior heavy duty truck manufacturing contractors
In the 12 months ending Oct 5, 2026, the Department of the Interior obligated $18.8M in net prime contract dollars under NAICS 336120, up 640.8% from $2.5M in the preceding 12 months. 8 prime contractors received positive obligations, and 1 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.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top Interior contractors for NAICS 336120
Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.
| # | Contractor | Latest 12 mo | Prior 12 mo | Share | Rank change |
|---|---|---|---|---|---|
| 1 | Pierce Manufacturing Inc | $17.3M | $417K | 92.1% | ▲ 1 |
| 2 | Maryland Industrial Trucks, Incorporated | $663K | $1.6M | 3.5% | ▼ 1 |
| 3 | Central Truck Center Inc | $387K | $0 | 2.1% | New |
| 4 | Mack Defense LLC | $249K | $0 | 1.3% | New |
| 5 | Flatwater Fleet Inc | $92K | $0 | 0.5% | New |
| 6 | Texas Patriot International, LLC | $49K | $0 | 0.3% | New |
| 7 | SNF, Inc. | $27K | $16K | 0.1% | ▼ 1 |
| 8 | Aantilia LLC | $25K | $266K | 0.1% | ▼ 5 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Pierce Manufacturing Inc$417K → $17.3M (+$16.9M) · now #1
- Central Truck Center Inc$0 → $387K (+$387K) · now #3
- Mack Defense LLC$0 → $249K (+$249K) · now #4
Largest declines
- Maryland Industrial Trucks, Incorporated$1.6M → $663K (−$936K) · now #2
- Aantilia LLC$266K → $25K (−$241K) · now #8
- Vision Distributors LLC$155K → $0 (−$155K) · no latest-period obligations
New to this market
4 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Central Truck Center Inc | Apr 8, 2026 | $387K |
| Mack Defense LLC | Sep 21, 2026 | $249K |
| Flatwater Fleet Inc | Jul 2, 2026 | $92K |
| Texas Patriot International, LLC | Jul 7, 2026 | $49K |
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-agency | Latest 12 mo | Prior 12 mo | Change |
|---|---|---|---|
| Bureau of Land Management | $17.3M | $417K | Up $16.9M (4041.7%) |
| National Park Service | $1.1M | $2.0M | Down $887K (45.2%) |
| Bureau of Indian Affairs and Bureau of Indian Education | $249K | $0 | New |
| Bureau of Reclamation | $92K | $0 | New |
| U.S. Geological Survey | $49K | $155K | Down $106K (68.4%) |
| U.S. Fish and Wildlife Service | $27K | $0 | New |
Common questions
Who are the top Interior contractors for NAICS 336120?
In the latest 12 months, Pierce Manufacturing Inc ($17.3M), Maryland Industrial Trucks, Incorporated ($663K), Central Truck Center Inc ($387K) received the most Interior obligations for heavy duty truck manufacturing.
How concentrated is this market?
The eight largest primes held 100.0% of positive obligations, and Pierce Manufacturing Inc alone held 92.1%. 4 contractors won their first obligations in this market during the latest 12 months.
Related markets
NAICS 336120 across all agencies
DoD · NAICS 336120
$225.3MGSA · NAICS 336120
$168.6MFigures 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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