NAICS Code
All Other Support Activities for Transportation
Official 2022 NAICS classification for All Other Support Activities for Transportation.
SBA Small-Business Cap
$25 million in average annual receipts
If your company is at or below this cap, you qualify as a small business under NAICS 488999 and can pursue set-aside contracts.
Classification guidance
Use this code when the contract work aligns with all other support activities for transportation.
Are you a small business under NAICS 488999?
SBA cap for this code: $25 million in average annual receipts.
Enter your average annual revenue (in millions) above to see if you qualify.
You qualify under NAICS 488999 — here’s the path to your first contract
- 1
Register on SAM.gov
Get your UEI and complete entity registration so you’re eligible to receive federal contracts.
Read the SAM.gov registration guide → - 2
Pursue set-aside certifications
Apply for 8(a), HUBZone, WOSB, or SDVOSB certifications you may qualify for — these unlock preferential set-aside contracts.
Compare small-business certifications → - 3
Find and bid on opportunities
Search SAM.gov for solicitations under NAICS 488999, and consider an end-to-end partner like SLED.AI to handle opportunity matching, proposal writing, and submission.
Talk to SLED.AI →
Related NAICS codes in 49 - Transportation and Warehousing
For an authoritative check before submitting a bid, verify against the current SBA Table of Size Standards.