Top Interior boat building contractors
In the 12 months ending Oct 5, 2026, the Department of the Interior obligated $6.8M in net prime contract dollars under NAICS 336612, down 2.4% from $7.0M in the preceding 12 months. 43 prime contractors received positive obligations, and 18 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 336612
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 | Metalcraft Marine US, Inc. | $1.9M | $0 | 27.5% | New |
| 2 | William E. Munson Company | $745K | $5.1M | 10.9% | ▼ 1 |
| 3 | Chaves Brothers Management, LLC | $329K | $0 | 4.8% | New |
| 4 | Hanko Boats, LLC | $298K | $135K | 4.4% | ▲ 4 |
| 5 | The Boat Yard, Inc. | $244K | $0 | 3.6% | New |
| 6 | Contender Boats, Inc. | $232K | $327K | 3.4% | ▼ 4 |
| 7 | Solas Group LLC | $198K | $0 | 2.9% | New |
| 8 | NW Bend Boats, LLC | $194K | $266K | 2.9% | ▼ 5 |
| 9 | Diamondback Manufacturing LLC | $183K | $0 | 2.7% | New |
| 10 | Uncle J Custom Boats LLP | $180K | $0 | 2.6% | New |
| 11 | Tideman Boats US LLC | $180K | $0 | 2.6% | New |
| 12 | Gulfshore Manufacturing Inc | $143K | $0 | 2.1% | New |
| 13 | Patriot Airboat Corporation | $132K | $0 | 1.9% | New |
| 14 | Technologisty LLC | $123K | $21K | 1.8% | ▲ 5 |
| 15 | Wooldridge Boats, Inc | $110K | $3K | 1.6% | ▲ 10 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Metalcraft Marine US, Inc.$0 → $1.9M (+$1.9M) · now #1
- Chaves Brothers Management, LLC$0 → $329K (+$329K) · now #3
- Seaark, LLC−$250K → $0 (+$250K) · no latest-period obligations
Largest declines
- William E. Munson Company$5.1M → $745K (−$4.4M) · now #2
- Brunswick Commercial & Government Products, Inc.$200K → $0 (−$200K) · no latest-period obligations
- Riddle Marine, LLC$182K → $0 (−$182K) · no latest-period obligations
New to this market
22 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Chaves Brothers Management, LLC | Aug 24, 2026 | $329K |
| The Boat Yard, Inc. | Aug 5, 2026 | $244K |
| Solas Group LLC | Sep 15, 2026 | $198K |
| Tideman Boats US LLC | Jul 21, 2026 | $180K |
| Gulfshore Manufacturing Inc | Sep 14, 2026 | $143K |
| RP Advanced Mobile Systems, LLC | Sep 10, 2026 | $105K |
| Jmsonline.net, LLC | May 6, 2026 | $103K |
| Signet Maritime Corporation | Apr 28, 2026 | $99K |
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 |
|---|---|---|---|
| National Park Service | $3.7M | $5.9M | Down $2.2M (37.5%) |
| U.S. Fish and Wildlife Service | $2.1M | $487K | Up $1.6M (322.2%) |
| U.S. Geological Survey | $853K | $342K | Up $511K (149.5%) |
| Bureau of Reclamation | $174K | $167K | Up $7K (4.4%) |
| Bureau of Land Management | $4K | $44K | Down $40K (91.0%) |
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 |
|---|---|---|---|
| 140P9725P0010 | William E. Munson Company 65' MULTI-PURPOSE VESSEL - GLBA | $3.6M | Dec 20, 2027 |
| 140P2126F0083 | Metalcraft Marine US, Inc. EO 14398 LEO MARINE VESSEL FOR USPP NYFO | $1.9M | Dec 31, 2027 |
Common questions
Who are the top Interior contractors for NAICS 336612?
In the latest 12 months, Metalcraft Marine US, Inc. ($1.9M), William E. Munson Company ($745K), Chaves Brothers Management, LLC ($329K) received the most Interior obligations for boat building.
How concentrated is this market?
The eight largest primes held 60.4% of positive obligations, and Metalcraft Marine US, Inc. alone held 27.5%. 22 contractors won their first obligations in this market during the latest 12 months.
Are any large Interior NAICS 336612 contracts ending soon?
2 of the largest awards in this market reach their current end date in the next 18 months. The first is 140P9725P0010 (William E. Munson Company, $3.6M obligated), ending Dec 20, 2027. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
Related markets
NAICS 336612 across all agencies
DoD · NAICS 336612
$189.3MDHS · NAICS 336612
$74.4MFigures 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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