Top DoD power boiler and heat exchanger manufacturing contractors
In the 12 months ending Oct 5, 2026, the Department of Defense obligated $2.2B in net prime contract dollars under NAICS 332410, up 0.3% from $2.2B in the preceding 12 months. 84 prime contractors received positive obligations, and 1 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Defense. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
DoD publishes contract data to USAspending with a 90-day delay, so the most recent months understate DoD activity.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DoD contractors for NAICS 332410
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 | Bechtel Plant Machinery, Inc. | $2.2B | $2.1B | 98.7% | — |
| 2 | Huntington Ingalls Inc | $7.5M | $9.8M | 0.3% | — |
| 3 | Aqua-Chem, Inc. | $7.0M | $2.8M | 0.3% | ▲ 2 |
| 4 | Jgils, LLC | $1.6M | $3.5M | 0.1% | — |
| 5 | ECI Defense Group, Inc. | $1.2M | $8.0M | 0.1% | ▼ 2 |
| 6 | H C Merchandisers, Inc. | $1.0M | $0 | 0.1% | New |
| 7 | S I T Corporation | $950K | $168K | 0.0% | ▲ 35 |
| 8 | Argo Turboserve Corporation | $838K | $604K | 0.0% | ▲ 6 |
| 9 | Kampi Components Co Inc | $791K | $432K | 0.0% | ▲ 11 |
| 10 | Phoenix Trading Inc. | $723K | $199K | 0.0% | ▲ 26 |
| 11 | Pioneer Industries, LLC | $704K | $402K | 0.0% | ▲ 10 |
| 12 | PAR Defense Industries, LLC | $643K | $378K | 0.0% | ▲ 11 |
| 13 | Sogen Company, Inc. | $542K | $49K | 0.0% | ▲ 62 |
| 14 | Terry Service, Inc | $503K | $1.2M | 0.0% | ▼ 6 |
| 15 | Separator Spares & Equipment LLC | $441K | $349K | 0.0% | ▲ 9 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Bechtel Plant Machinery, Inc.$2.1B → $2.2B (+$24.1M) · now #1
- Aqua-Chem, Inc.$2.8M → $7.0M (+$4.2M) · now #3
- H C Merchandisers, Inc.$0 → $1.0M (+$1.0M) · now #6
Largest declines
- ECI Defense Group, Inc.$8.0M → $1.2M (−$6.8M) · now #5
- Tranter Inc$2.7M → $0 (−$2.7M) · no latest-period obligations
- Huntington Ingalls Inc$9.8M → $7.5M (−$2.3M) · now #2
New to this market
18 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Veterans Aerospace LLC | May 21, 2026 | $130K |
| Percipient Manufacturing, LLC | Jan 12, 2026 | $118K |
| Cornet Technology, Inc. | Mar 12, 2026 | $73K |
| Norcatec LLC | Feb 6, 2026 | $61K |
| Govparts LLC | Feb 25, 2026 | $33K |
| Z and K Services Inc. | Jan 28, 2026 | $29K |
| Advance Safety Equipment Co. | Jun 29, 2026 | $29K |
| Southern Refrigeration Corporation | Mar 4, 2026 | $28K |
Where the money comes from
Funding sub-agencies within the Department of Defense, 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 |
|---|---|---|---|
| Department of the Navy | $2.2B | $2.2B | Up $15.6M (0.7%) |
| Defense Logistics Agency | $14.2M | $21.5M | Down $7.3M (34.0%) |
| Department of the Army | $914K | $2.1M | Down $1.2M (56.4%) |
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.
| Award | Incumbent | Obligated | Current end |
|---|---|---|---|
| N0002422C2105 | Huntington Ingalls Inc NAVAL REACTORS | $40.8M | Dec 7, 2026 |
| N0010426CBA08 | Aqua-Chem, Inc. CONDENSER,STM AUX | $4.3M | Feb 28, 2028 |
Common questions
Who are the top DoD contractors for NAICS 332410?
In the latest 12 months, Bechtel Plant Machinery, Inc. ($2.2B), Huntington Ingalls Inc ($7.5M), Aqua-Chem, Inc. ($7.0M) received the most DoD obligations for power boiler and heat exchanger manufacturing.
How concentrated is this market?
The eight largest primes held 99.6% of positive obligations, and Bechtel Plant Machinery, Inc. alone held 98.7%. 18 contractors won their first obligations in this market during the latest 12 months.
Are any large DoD NAICS 332410 contracts ending soon?
2 of the largest awards in this market reach their current end date in the next 18 months. The first is N0002422C2105 (Huntington Ingalls Inc, $40.8M obligated), ending Dec 7, 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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