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NAICS Code· 321991

NAICS 321991: Manufactured Home (Mobile Home) Manufacturing

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. Cross-References. Establishments primarily engaged in--Show more

NAICS 321991 – Manufactured Home (Mobile Home) Manufacturing covers the production of factory-built, transportable residential units designed for permanent or semi-permanent occupancy, typically installed on permanent foundations and connected to utilities. These homes are constructed in controlled environments to meet federal standards such as the HUD Code, ensuring structural integrity, fire safety, and energy efficiency.

19
Active Contracts
$14.8M
Total Obligations (12mo)
16
Awarded Contracts (12mo)
11
Contractors Awarded (12mo)
2
Median Bidders per Award
-32.3%
YoY Growth

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 321991.

AI Industry Description

NAICS 321991 – Manufactured Home (Mobile Home) Manufacturing covers the production of factory-built, transportable residential units designed for permanent or semi-permanent occupancy, typically installed on permanent foundations and connected to utilities. These homes are constructed in controlled ...

NAICS 321991 – Manufactured Home (Mobile Home) Manufacturing covers the production of factory-built, transportable residential units designed for permanent or semi-permanent occupancy, typically installed on permanent foundations and connected to utilities. These homes are constructed in controlled environments to meet federal standards such as the HUD Code, ensuring structural integrity, fire safety, and energy efficiency. In the government contracting landscape, this NAICS supports housing programs for federal employees, military personnel, veterans, and tribal communities, particularly in remote or underserved locations where traditional construction is cost-prohibitive or logistically challenging. Products in this category include single-wide and double-wide units, modular housing systems, and accessory dwelling units configured for federal use. No contractor data is available for this NAICS code, indicating limited visibility of prime contractors or subcontractors actively competing for federal awards in manufactured home manufacturing. The competitive landscape appears fragmented, with potential participation from small businesses, tribal enterprises, and specialized manufacturers focused on government-compliant housing solutions. No agency data is available, suggesting that procurement activity in this sector is either infrequent, highly localized, or bundled under broader housing or infrastructure contracts rather than being tracked as a distinct line item. Potential demand drivers may include the Department of Housing and Urban Development, Department of Defense family housing initiatives, and tribal housing programs under the Indian Housing Block Grant. The market context reflects low opportunity density for contractors due to the specialized nature of the product and limited direct federal procurement. Opportunities may exist through indirect channels such as construction management firms, housing authorities, or grant-funded programs that specify manufactured housing as a solution. Trends suggest growing interest in rapid deployment housing for disaster relief and workforce housing, though federal contracting remains sparse and often tied to broader community development initiatives.

Small Business Size Standard

The SBA threshold that decides who can bid NAICS 321991 work as a small business.

1,250 employees
Applies to the whole industry code

The SBA cap for this NAICS (13 CFR 121.201). A business at or under it can self-certify as small for work in this code, which is what makes it eligible for a small-business set-aside. The cap is set per NAICS, so the same company can be small in one code and not in another.

13 CFR 121.201, effective January 1, 2026. The SBA revises the table roughly once a year.

Top Contractors

Companies with the highest total award value under NAICS 321991, ranked by dollars won.

Top Agencies

Federal agencies directing the most contract spending toward NAICS 321991.

Competition

How many companies historically bid on federal awards in NAICS 321991, from bidder counts reported on USAspending.

Fewer Bidders

Median under 3 bidders per reported award. · 2,077 reported awards

Median Bidders

2

Per reported award, all-time

Single-Bid Awards

47%

Share of reported awards with one bidder

10+ Bidder Awards

7%

Share of reported awards with 10+ bidders

Reported Awards

2,077

93% of 2,243 total awards

Bidder Count Distribution by Fiscal Year

Share of reported awards in each bidder-count bracket per federal fiscal year.

How this code compares up the NAICS hierarchy. Parent cohorts pool every code under their prefix, so they are the steadier baseline when a 6-digit sample is thin.

Industry FamilyCompetitionMedian BiddersSingle-BidBidder MixReported Awards
321991This Code
Manufactured Home (Mobile Home) Manufacturing
Fewer Bidders247%
2,07793% of 2,243
32199NAICS Industry
Usually Single-Bid162%
23,71420% of 119,250
3219Industry Group
Other Wood Product Manufacturing
Usually Single-Bid154%
39,55729% of 138,555
321Subsector
Fewer Bidders243%
63,05238% of 164,818
32Sector
Manufacturing
Moderate Competition331%
3,145,73729% of 10,805,773

Bidder counts reported on past federal awards in this NAICS (USAspending). An open opportunity has no bidders yet, so this is the historical norm for similar work, not a fact about this solicitation. Not all awards report bidder counts, and fewer bidders often means incumbent-held work rather than an easier win. Federal reporting of bidder counts fell from ~96% of awards (FY2016) to ~30% (FY2018 onward); the chart shows shares of reported awards, and washed-out stretches mark years with fewer than 30 of them.

Related NAICS Codes

Industries similar to Manufactured Home (Mobile Home) Manufacturing, by shared sector, subsector, and industry group.

Explore contracts across multiple NAICS codes Browse all NAICS Codes

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NAICS 321991 FAQ

Frequently Asked Questions

NAICS code 321991 covers Manufactured Home (Mobile Home) Manufacturing. 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. Cross-References. Establishments primarily engaged in--

Recently Posted in Manufactured Home (Mobile Home) Manufacturing

NAICS: 321991
New
SLED
Purchase, Delivery, and Set up of a Modular Home
Solicitation # 2139746
The Herkimer County Land Bank Corporation is soliciting proposals for a complete turnkey solution for the purchase, delivery, and installation of a new modular home located at 386 West Main Street, Little Falls, New York. The project requires a high-quality, energy-efficient 3-bedroom, 2-bathroom residence, approximately 1,500 to 2,000 square feet, in either a Ranch or Cape style. The scope of work encompasses factory construction, transportation, crane setting, utility connections for electrical, plumbing, and HVAC, and all necessary interior and exterior finishing to provide a move-in-ready home on a permanent foundation. All work must comply with the New York State Uniform Fire Prevention and Building Code and current NY State Energy Code, with a final completion deadline and issuance of the Certificate of Occupancy by July 31, 2027. Proposals are due by 4:00 PM EDT on November 2, 2026, and must be submitted as PDF files or as two hard copies to the land bank office in Herkimer. Submissions must include detailed company information, a project approach, floor plans, a project schedule, and warranty details. Bidders are required to provide an itemized cost proposal covering the home, delivery, site work, utility connections, and permits, with optional pricing for foundations and upgrades such as garages or solar panels. Evaluation of proposals will be weighted based on cost (40%), quality (25%), experience (20%), completeness (10%), and schedule/warranty (5%). Minority and Women-Owned Business Enterprises and Veteran Business Enterprises are encouraged to apply.
Herkimer County Land Bank Corporation

POSTED

5 days ago

DEADLINE

in 21 days
View Details
NAICS: 321991
New
SLED
Modular Offices/Trailers for Police Range
Solicitation # 2026-IFB-LM-0466
The City of Pasadena, California, is soliciting proposals for the purchase, delivery, and installation of three modular office units to provide additional workspace for the Pasadena Police Department. The requirement includes two units measuring at least 36 feet wide by 64 feet long with open workspaces, and one unit measuring at least 44 feet wide by 40 feet long. The selected vendor must handle the design, engineering, manufacturing, and installation of these units at a designated site in Pasadena, ensuring full compliance with the California Building Standards Code (Title 24), local fire codes, and ADA accessibility requirements. The contract will be awarded to the lowest responsive and responsible bidder. Performance must begin within 15 calendar days of the Notice to Proceed, with all work completed within 30 working days. Bidders must submit their proposals electronically via the City's eProcurement Portal by October 21, 2026, at 4:00 pm. Key compliance requirements include maintaining current representations and certifications in SAM.gov, providing a Unique Entity ID (UEI), and adhering to the Davis-Bacon Act, Buy America requirements, and FEMA telecommunications prohibitions. The contractor is responsible for all risk of loss until written acceptance is granted by the City following a final inspection. Invoicing is managed through the City's Vendor Invoice Portal, with payments processed on Tuesdays and Thursdays.
Police Department

POSTED

6 days ago

DEADLINE

in 9 days
View Details
NAICS: 321991
Closed
Federal
54--IA-NEAL SMITH NWR-TEMP MODULAR OFFICE
Solicitation # 140F0S26Q0051
Solicitation 140F0S26Q0051 is a firm fixed price commercial services contract set aside for small businesses to provide a temporary modular office building at the Neal Smith National Wildlife Refuge in Iowa. The project involves the delivery, installation, modification, maintenance, and eventual removal of an approximately 36 by 56 foot modular office trailer to maintain administrative capacity during renovations of the existing headquarters and visitor center. The contractor is responsible for all utility integration, including the construction of potable water and sanitary sewer laterals and the installation of electrical service from the existing main distribution panel. Key technical requirements include ADA and ABA compliant accessible ramps with slip-resistant landings and low voltage wiring for phone and data services, though office furniture is not required. The total period of performance runs from November 30, 2026, to November 29, 2029, consisting of a base year and two option years. The facility must be fully set up with utilities and turned over for government occupancy by November 30, 2026, which also serves as the first day of billing. Award will be based on the lowest evaluated price from a responsible offeror who meets the minimum technical acceptability standards. Proposals must include a non-price section with floor plans, drawings, a written description, and an installation plan, as well as a completed price schedule. Invoicing is to be processed electronically through the Invoice Processing Platform.
Fws Contracting Activity

POSTED

7 days ago

CLOSED

about 10 hours ago
View Details

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