51921 - Libraries and Archives

In today’s information-driven world, access to knowledge is essential. NAICS code 51921, titled Libraries and Archives, plays a vital role in organizing and providing this access. Whether you're a researcher, student, or government contractor, understanding this NAICS code will help you identify businesses and opportunities within the Information Sector that focus on managing valuable informational resources.

What is NAICS Code 51921?

NAICS code 51921 covers establishments primarily engaged in operating libraries and archives. These organizations provide access to collections such as:

• Books
• Periodicals
• Manuscripts
• Other informational resources

These services support the general public, educational institutions, and specialized research communities, making this sector a cornerstone of knowledge dissemination and preservation.

Sector Overview: Information

NAICS 51921 falls under the broader Information Sector (NAICS 51), which encompasses industries focused on collecting, storing, and distributing information. Libraries and archives are critical within this sector because they:

• Facilitate public access to curated collections
• Support academic research through university libraries
• Preserve historical records in archives

Typical Business Types and Activities

Businesses and institutions classified under NAICS 51921 include:

• Public Libraries: Municipal or community-based libraries open to the general public.
• University Libraries: Academic libraries serving students, faculty, and researchers.
• Historical Archives: Organizations maintaining collections of historical documents and records.

These establishments manage lending services, digital cataloging, educational programs, and archival preservation.

Small Business Size Standards for NAICS 51921

The U.S. Small Business Administration (SBA) sets size standards to determine small business eligibility for federal contracting. For NAICS code 51921:

NAICS Code	Industry Title	Size Standard (Employees)
51921	Libraries and Archives	500 employees

Businesses with 500 or fewer employees are typically considered small under this code for government contracting purposes.

Summary Table: NAICS Code 51921 - Libraries and Archives

Attribute	Description
NAICS Code	51921
Title	Libraries and Archives
Sector	Information (NAICS 51)
Description	Establishments operating libraries and archives providing access to informational resources.
Typical Businesses	Public libraries, University libraries, Historical archives
Size Standard	500 employees

FAQ about NAICS 51921 - Libraries and Archives

What types of services do businesses under NAICS 51921 provide?

They offer access to collections including books, periodicals, manuscripts, digital archives, and support research, education, and public information needs.

Are digital libraries included under this NAICS code?

Yes, establishments managing digital collections and archives typically fall under NAICS 51921 if their primary function is library or archival services.

Can a small business qualify for federal contracts under NAICS 51921?

Yes, firms with 500 or fewer employees meet SBA’s small business size standard for this NAICS code, which can provide eligibility for certain government contracts.

How does this NAICS code differ from general publishing industries?

NAICS 51921 focuses on the operation and management of libraries and archives, whereas publishing involves content creation, printing, and distribution, which are classified under different NAICS codes.

Which institutions commonly use this NAICS code?

Public libraries, university libraries, historical societies, and organizations preserving governmental or cultural records use NAICS 51921.

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Understanding NAICS 51921 - Libraries and Archives ensures better targeting of information sector opportunities and funding related to knowledge management. Whether you're entering government contracting or expanding your business portfolio, this classification unlocks doors in the vital area of library and archival services.