NAICS Code 321991: Manufactured Home (Mobile Home) Manufacturing
National industry
SBA small business size standard: 1,250 employees
Definition
This U.S. industry comprises establishments primarily engaged in making manufactured homes (i.e., mobile homes) and nonresidential mobile buildings. Manufactured homes are designed to accept permanent water, sewer, and utility connections and although equipped with wheels, they are not intended for regular highway movement.
Government contracts for this product: PSC 5410 Prefabricated and Portable Buildings
Code facts
- Part of
-
-
31-33
-
321
-
3219
- 32199
-
3219
-
321
-
31-33
- Contract awards
- 16 In the last 12 months
- Contract obligations
- $27,084,621 In FY2025
NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.
Business activities under NAICS 321991
- Buildings, mobile, commercial use, manufacturing
- Houses, prefabricated mobile homes, manufacturing
- Manufactured (mobile) buildings for commercial use (e.g., banks, offices) manufacturing
- Manufactured (mobile) classrooms manufacturing
- Manufactured (mobile) homes manufacturing
- Mobile home manufacturing
Looking for another activity? Search the NAICS code lookup or browse business activities from A to Z.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $273,191 |
| FY2026 | $11,932,899 |
| FY2025 | $27,084,621 |
| FY2024 | $157,183,403 |
| FY2023 | $130,703,518 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Kastel Enterprises MK LLC | $16,933,569 | |
| 2 | PCI Support Services LLC | $1,044,803 | |
| 3 | Randy Ashton LLC | $656,900 | |
| 4 | Nadler Mobile, LLC | $257,025 | |
| 5 | Bentz Construction Group, LLC | $203,904 | |
| 6 | Dakota Cabins, LLC | $198,920 | |
| 7 | Lakeshield Corp | $183,530 | |
| 8 | Prather Construction Corp | $157,887 | |
| 9 | Palomar Modular Buildings LLC | $89,661 | |
| 10 | Duenas Trailers Rental Inc. | $89,280 |
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Homeland Security | $9,678,454 | |
| 2 | Department of Health and Human Services | $1,044,803 | |
| 3 | Air Force | $508,809 | |
| 4 | Department of the Interior | $468,322 | |
| 5 | Department of the Army | $367,726 | |
| 6 | Department of Agriculture | $141,373 | |
| 7 | Department of Justice | $89,661 | |
| 8 | Department of Transportation | $55,424 | |
| 9 | Department of the Navy | $44,831 | |
| 10 | National Aeronautics and Space Administration | $5,447 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 5410 Prefabricated and Portable Buildings | $18,413,334 | |
| 2 | 2330 Trailers | $519,886 | |
| 3 | Y1FA Construction of Family Housing Facilities | $198,920 | |
| 4 | W054 Lease or Rental of Equipment: Prefabricated Structures and Scaffolding | $88,679 | |
| 5 | 7240 Household and Commercial Utility Containers | $44,831 | |
| 6 |
X1AA Lease/ |
$38,365 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Alabama | $17,978,371 | |
| 2 | North Carolina | $656,900 | |
| 3 | Oklahoma | $257,025 | |
| 4 | Louisiana | $203,904 | |
| 5 | North Dakota | $198,920 | |
| 6 | Minnesota | $183,530 | |
| 7 | California | $162,862 | |
| 8 | West Virginia | $157,887 | |
| 9 | Texas | $89,661 | |
| 10 | Puerto Rico | $89,280 | |
| 11 | Virginia | $71,365 | |
| 12 | Oregon | $43,450 | |
| 13 | Maryland | $1,977 |
Show all 13
Contract opportunities
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Latest 50 of 385 listed here. See the rest on GovTribe.
Size standard history
Federal Register rules that named this code
From the NAICS codes each rule's amendments to 13 CFR 121.201 name. Rules that print their size standard tables as images aren't listed.
Quick answers
What is NAICS 321991?
NAICS 321991 is Manufactured Home (Mobile Home) Manufacturing, a national industry in NAICS 31-33, Manufacturing.
What is the NAICS code for mobile home manufacturing?
The NAICS code for mobile home manufacturing is 321991, Manufactured Home (Mobile Home) Manufacturing.
What is the NAICS code for manufactured (mobile) homes manufacturing?
The NAICS code for manufactured (mobile) homes manufacturing is 321991, Manufactured Home (Mobile Home) Manufacturing.
What is the NAICS code for buildings, mobile, commercial use, manufacturing?
The NAICS code for buildings, mobile, commercial use, manufacturing is 321991, Manufactured Home (Mobile Home) Manufacturing.
When did the size standard for NAICS 321991 last change?
The most recent Federal Register rule on record that names NAICS 321991 in the SBA's size standards is "Small Business Size Standards for Manufacturing" (81 FR 4469), published Jan 26, 2016 and effective Feb 26, 2016.
How much do federal agencies spend under NAICS 321991?
Federal contracts under NAICS 321991 obligated $27,084,621 in fiscal year 2025 and $327,177,632 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 321991?
The contractors with the most obligated under NAICS 321991 in fiscal years 2026 and 2027 are Kastel Enterprises MK LLC ($16,933,569), PCI Support Services LLC ($1,044,803) and Randy Ashton LLC ($656,900).
Which agencies buy the most under NAICS 321991?
The agencies that obligated the most under NAICS 321991 in fiscal years 2026 and 2027 are Department of Homeland Security ($9,678,454), Department of Health and Human Services ($1,044,803) and Air Force ($508,809).
Which PSC codes are used with NAICS 321991?
The PSC codes with the most obligated under NAICS 321991 in fiscal years 2026 and 2027 are 5410 Prefabricated and Portable Buildings, 2330 Trailers and Y1FA Construction of Family Housing Facilities.
Where is the work under NAICS 321991 performed?
By place of performance, the states with the most contract obligations under NAICS 321991 over the last 12 months are Alabama ($17,978,371), North Carolina ($656,900) and Oklahoma ($257,025).
What is the latest contract opportunity under NAICS 321991?
The latest contract opportunity under NAICS 321991 is Tiny Home, solicitation from MICC Fort Drum, posted October 29, 2026.
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