NAICS Code 561431 — Private Mail Centers
National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is one of 2 national industries under 56143 (Business Service Centers).
| Code | 561431 |
|---|---|
| Title | Private Mail Centers |
| Level | National Industry (6-digit) |
| Edition | NAICS 2022 edition |
| SBA size standard | $19 million in average annual receipts |
Official definition (2022 NAICS)
This U.S. industry comprises (1) establishments primarily engaged in providing mailbox rental and other postal and mailing (except direct mail advertising) services or (2) establishments engaged in providing these mailing services along with one or more other office support services, such as facsimile services, word processing services, on-site PC rental services, and office product sales.
Is a business under 561431 "small"?
Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 561431 qualifies as a small business if it does not exceed $19 million in average annual receipts. Small-business status determines eligibility for federal set-aside contracts, SAM.gov certifications and SBA loan programs — receipts are averaged over the latest 5 fiscal years.
Where 561431 sits in the hierarchy
| Level | Code | Title |
|---|---|---|
| Sector | 56 | Administrative and Support and Waste Management and Remediation Services |
| Subsector | 561 | Administrative and Support Services |
| Industry Group | 5614 | Business Support Services |
| NAICS Industry | 56143 | Business Service Centers |
| National Industry | 561431 | Private Mail Centers |
Related SIC codes
Via the official U.S. Census concordance (1987 SIC ↔ NAICS), shown only where the industry definition is unchanged in NAICS 2022.
| SIC code | Title |
|---|---|
7389 | Business Services, Not Elsewhere Classified |
Related National Industry codes
561439— Other Business Service Centers (including Copy Shops)
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Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.