# NAICS 488390: Other Support Activities for Water Transportation

Breadcrumb: [NAICS codes](https://bidrover.com/naics) › [488390 Other Support Activities for Water Transportation](https://bidrover.com/naics/488390)

This industry comprises establishments primarily engaged in providing services to water transportation (except port and harbor operations; marine cargo handling services; and navigational services to shipping).

- NAICS code: 488390
- Title: Other Support Activities for Water Transportation
- Sector: 48-49 Transportation and Warehousing
- Subsector: 488 Support Activities for Transportation
- Industry group: 4883 Support Activities for Water Transportation
- SBA size standard: $47 million average annual receipts
- Open bids on BidRover: 1
- Updated: Oct 23, 2026

## Open bids (1)

- [Annual Life Raft Inspection and Certification](https://bidrover.com/bids/annual-life-raft-inspection-and-certification--21549189-f7a9-4e4a-97b6-247c8547e679) — Transportation & logistics · United States · due 2026-10-30

## Frequently asked questions

### What is NAICS code 488390?

NAICS 488390 is "Other Support Activities for Water Transportation" in the 2022 North American Industry Classification System, in sector 48-49 (Transportation and Warehousing). This industry comprises establishments primarily engaged in providing services to water transportation (except port and harbor operations; marine cargo handling services; and navigational services to shipping).

### What is the SBA size standard for NAICS 488390?

A business is small under NAICS 488390 at or below $47 million average annual receipts, including affiliates (13 CFR 121.201). Confirm the standard named in each solicitation.

### How many government bids are open under NAICS 488390?

BidRover counts 1 open bid that cite NAICS 488390 as of Oct 23, 2026, refreshed every hour from official public sources. Many state and local notices do not list a NAICS code, so search by keyword too.

### How do I get alerts for NAICS 488390 bids?

Save an alert on this page. A free account gets new matching bids by weekly email; the Team plan ($19/mo) sends daily alerts with match scores, the buyer, source link and documents.

## Related NAICS codes

- [238320 Painting and Wall Covering Contractors](https://bidrover.com/naics/238320)
- [561720 Janitorial Services](https://bidrover.com/naics/561720)
- [488310 Port and Harbor Operations](https://bidrover.com/naics/488310)
- [237990 Other Heavy and Civil Engineering Construction](https://bidrover.com/naics/237990)
- [488320 Marine Cargo Handling](https://bidrover.com/naics/488320)
- [488330 Navigational Services to Shipping](https://bidrover.com/naics/488330)
- [336611 Ship Building and Repairing](https://bidrover.com/naics/336611)
- [483211 Inland Water Freight Transportation](https://bidrover.com/naics/483211)

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Code titles and definitions: U.S. Census Bureau, North American Industry Classification System (NAICS), 2022 (https://www.census.gov/naics/). Size standards: U.S. Small Business Administration, Small Business Size Standards, 13 CFR 121.201, eCFR text current as of 2026-10-21 (https://www.ecfr.gov/current/title-13/section-121.201).

BidRover lists bids from official public sources. It is not an issuing authority; confirm the NAICS code and size standard named in each solicitation.