What is NAICS 335999?

NAICS 335999 is a 6-digit North American Industry Classification System code that federal contracting officers use to classify solicitations and confirm bidder eligibility. The Census Bureau maintains the NAICS taxonomy.

How do I bid on federal contracts as a small business in NAICS 335999?

Register your business in SAM.gov, get a UEI, and confirm your NAICS code matches the solicitation's primary NAICS. Then write a capability statement that maps your past performance to the work in the RFP. Themis automates the matching and gives you a free AI brief for every active opportunity.

Do I need a SAM.gov registration to bid?

Yes — every federal contract award above the micro-purchase threshold requires the vendor to have an active SAM.gov registration with a Unique Entity Identifier (UEI) and the relevant NAICS codes listed on the registration.

What set-asides apply to NAICS 335999?

Common federal set-asides — Small Business (SBA), 8(a), HUBZone, SDVOSB, WOSB, EDWOSB — apply per solicitation, not per NAICS code. Each opportunity declares its own set-aside; Themis displays the eligibility class on every card so you can filter to ones you qualify for.

Federal contracts · NAICS 335999

Federal contracts for NAICS 335999

Live federal + LA municipal opportunities under NAICS 335999, plus the contracting officers, top primes, and agencies that actually buy this work.

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7 active solicitations·4 federal agencies·Last refreshed Jul 6, 2026

Active opportunities in NAICS 335999

Refreshed continuously from SAM.gov and partner agencies. Showing the 5 most-urgent active solicitations.

Navsup Weapon Systems Support MechSupply

LENS, RED

View full solicitation at SAM.gov.

Est. value

Not posted

Closes

Jul 6, 2026

Top primes in NAICS 335999

Federal primes ranked by total obligated dollars under NAICS 335999 over the last 5 fiscal years. Source: USAspending.gov.

#1
LOCKHEED MARTIN CORPORATION6 contracts · Department of Defense
$581.5M
#2
SCIENCE APPLICATIONS INTERNATIONAL CORPORATION32 contracts · Department of Defense
$289.4M
#3
SAAB, INC.1 contract · Department of Defense
$276.9M
#4
RAYTHEON COMPANY3 contracts · Department of Defense
$217.5M

Agencies buying NAICS 335999

The top federal customers historically active in NAICS 335999by obligated dollars. Match your past performance to the agency that’s most likely to write your next contract.

#1
Department of Defense93 contracts
$2.1B
#2
Department of Transportation2 contracts
$20.2M
#3
Department of Justice2 contracts
$15.5M
#4
Department of Energy1 contract
$12.6M

Free capability statement builder for NAICS 335999 contractors

One-page PDF in proposal-grade prose. UEI, NAICS, certifications, past performance, and differentiators — the document contracting officers actually skim during sources-sought market research. No account required.

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Frequently asked questions

What is NAICS 335999?: NAICS 335999 is a 6-digit North American Industry Classification System code that federal contracting officers use to classify solicitations and confirm bidder eligibility. The Census Bureau maintains the NAICS taxonomy.
How do I bid on federal contracts as a small business in NAICS 335999?: Register your business in SAM.gov, get a UEI, and confirm your NAICS code matches the solicitation's primary NAICS. Then write a capability statement that maps your past performance to the work in the RFP. Themis automates the matching and gives you a free AI brief for every active opportunity.
Do I need a SAM.gov registration to bid?: Yes — every federal contract award above the micro-purchase threshold requires the vendor to have an active SAM.gov registration with a Unique Entity Identifier (UEI) and the relevant NAICS codes listed on the registration.
What set-asides apply to NAICS 335999?: Common federal set-asides — Small Business (SBA), 8(a), HUBZone, SDVOSB, WOSB, EDWOSB — apply per solicitation, not per NAICS code. Each opportunity declares its own set-aside; Themis displays the eligibility class on every card so you can filter to ones you qualify for.

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