Other Business Service Centers

NAICS code 561439 covers Other Business Service Centers, which includes establishments primarily engaged in providing a range of office support services (except copy shops, private mail services, and telephone call centers). This category includes mail room services, reproduction and printing, secretarial services, and general office support.

Government agencies require extensive mail room and office support services to handle correspondence, packages, and internal mail distribution. Federal buildings process millions of pieces of mail annually, requiring professional mail handling, sorting, distribution, and security screening services.

The General Services Administration, Department of Defense, and large headquarters buildings of cabinet agencies are major buyers of mail room services. Security screening requirements have made government mail handling increasingly specialized since 2001.

Contractors under NAICS 561439 provide mail room management, mail sorting and distribution, package handling, document reproduction, office machine operation, and related administrative support. Security training and clearances are typically required for mail handling positions.

The size standard of $14.5 million makes this accessible for specialized office support companies. Small businesses can enter through smaller agency contracts or subcontracting with larger facility management firms.