What is an enterprise in NAICS?
In Census Bureau business statistics, an enterprise, or company, consists of one or more domestic establishments under common ownership or control.
What Is an Enterprise in NAICS?
In Census Bureau business statistics, an enterprise, also called a company, is a business organization consisting of one or more domestic establishments under common ownership or control. A single-establishment business can be both the enterprise and the establishment, while a multi-establishment enterprise can operate many locations and activities.
Official U.S. NAICS statistical classification is establishment-oriented. This means the establishments within a multiunit enterprise can be classified in different NAICS industries when their primary activities differ.
An enterprise can still be associated with one or more NAICS codes in government, contracting, financial, or commercial databases. That does not change the establishment-based design of NAICS statistics. The meaning of a company-level NAICS field depends on the system maintaining it.
Updated: September 2026 · Reviewed by the SICCODE.com Industry Classification Review Team
How the Census Bureau defines an enterprise
The Census Bureau describes an enterprise, or company, as a business organization consisting of one or more domestic establishments under common ownership or control. For a single-establishment firm, the enterprise and establishment are the same. A multi-establishment company forms one enterprise made up of its associated establishments.
The enterprise describes the ownership and organizational relationship among business units. NAICS industry classification, by contrast, is designed around the economic activity of establishments.
- Single-establishment enterprise
- One enterprise with one establishment. The company and establishment describe the same operating unit for Census business-statistics purposes.
- Multi-establishment enterprise
- One enterprise with two or more establishments under common ownership or control. The establishments can operate in the same industry or in different NAICS industries.
Enterprise and establishment are different classification concepts
The distinction matters because ownership and economic activity answer different questions. An enterprise identifies which establishments belong to the same company or organization. An establishment identifies an economic unit whose activity can be classified within NAICS.
| Characteristic | Enterprise | Establishment |
|---|---|---|
| What it describes | Ownership or control of one or more establishments. | An economic unit where business activity is carried out. |
| Number within a company | One enterprise for the company in the Census enterprise concept. | One or many establishments. |
| NAICS statistical classification | Not the primary statistical unit used to assign industry classifications across a multiunit company. | The primary unit for official NAICS industry classification. |
| Industry diversity | Can contain establishments operating in several industries. | Classified according to the establishment's primary activity. |
| Single-location business | Can be identical to the establishment. | Can be identical to the enterprise. |
Why NAICS classification is establishment-oriented
The NAICS manual states that an establishment is generally a single physical location where business is conducted or where services or industrial operations are performed. The establishment is the statistical unit used to connect economic activity with an industry classification.
The single-location concept has exceptions for physically dispersed activities such as construction, transportation, and telecommunications. In those cases, relatively permanent offices, terminals, stations, or other operating bases can represent the establishment rather than each project, route, field, network, or temporary work site.
Because a multiunit enterprise can have establishments performing different activities, those establishments can receive different NAICS classifications in official statistical use.
See What Is an Establishment in NAICS? for a detailed treatment of the establishment concept.
A multi-establishment enterprise can span several NAICS industries
A company does not become a single industry merely because its establishments share common ownership. A multiunit enterprise can contain establishments in one industry, several related industries, or substantially different industries.
For example, a diversified enterprise could own manufacturing plants, retail locations, and a separate corporate headquarters. In establishment-based statistics, the manufacturing establishments would be classified according to their manufacturing activities, the retail establishments according to their retail activities, and a qualifying headquarters establishment according to its management activity.
The enterprise provides the organizational relationship. The establishment provides the unit used to classify economic activity in official NAICS statistics.
Can an enterprise have a single NAICS code?
A single-establishment enterprise can have one establishment classification because the enterprise and establishment are the same operating unit in that case.
For a multi-establishment enterprise, official NAICS statistical classification does not require all establishments to be collapsed into one industry code. Each establishment is classified according to its own primary activity.
Outside the statistical framework, government agencies, contracting systems, financial databases, and commercial data providers may associate one or more NAICS codes with a company or enterprise for their own purposes. A company-level code can represent a primary line of business, a reporting convention, a solicitation-specific classification, or a database methodology.
When a company-level NAICS code is being used, the relevant question is what the receiving system intends that code to represent.
How headquarters and management establishments fit into Sector 55
A separate establishment that primarily administers, oversees, and manages other establishments of the same company or enterprise can be classified in Sector 55, Management of Companies and Enterprises.
Sector 55 includes establishments that hold controlling interests in companies or enterprises and establishments that undertake strategic or organizational planning and decision-making for other establishments of the company or enterprise.
The detailed 2022 NAICS structure includes U.S. Industry 551114, Corporate, Subsidiary, and Regional Managing Offices, for qualifying management establishments.
A headquarters address is not automatically classified in Sector 55. The establishment's primary activity must fit the Sector 55 definition. Government management establishments are classified in Sector 92, and establishments providing day-to-day office administrative services to other organizations on a contract or fee basis are classified separately under Industry 56111.
Examples of enterprise and establishment relationships
| Business structure | Enterprise relationship | NAICS implication |
|---|---|---|
| Independent bakery operating one location | One enterprise and one establishment. | The establishment's bakery activity supplies the detailed NAICS classification. |
| Restaurant company operating several similar restaurants | One enterprise with multiple establishments. | Several establishments can share the same NAICS industry when their primary activities are the same. |
| Diversified company with manufacturing and retail locations | One enterprise with establishments in different activities. | Manufacturing and retail establishments can be classified in different NAICS industries. |
| Multiunit company with a separate corporate managing office | The headquarters is one establishment within the broader enterprise. | If its primary activity is administering and managing other establishments of the company, the office can be classified in Sector 55. |
Why company-level NAICS codes still appear in business data
Establishment-oriented statistical classification does not prevent other systems from maintaining company-level industry fields. Business databases, financial systems, procurement platforms, insurers, and internal company records often need a classification at the company or account level.
Those systems may select a primary company industry, retain several activity codes, roll up establishment classifications, or apply their own methodology. As a result, a company-level NAICS value should not automatically be interpreted as the official statistical classification of every establishment in the enterprise.
This also explains why the same enterprise can appear with different NAICS codes in different sources without every difference being an error. The sources may be classifying different units or using the code for different purposes.
How to use enterprise information when evaluating a NAICS code
Before interpreting a NAICS code associated with a company, identify the unit and purpose of the classification.
- Determine whether the code represents the enterprise, a specific establishment, a headquarters, or another business unit.
- Identify whether the source is a statistical program, government application, contracting system, financial database, or commercial business database.
- For establishment classification, compare the establishment's primary activity with the applicable NAICS definitions and cross-references.
- For company-level data, review the methodology used to select or aggregate the company's industry code.
- Do not assume that one company-level NAICS code describes every location operated by a multi-establishment enterprise.
Primary sources
The enterprise definition, establishment distinction, multiunit-company treatment, and Sector 55 guidance on this page are based on U.S. Census Bureau NAICS and business-statistics references.
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U.S. Census Bureau, Statistics of U.S. Businesses Glossary
Defines an enterprise, or company, as one or more domestic establishments under common ownership or control and explains the relationship between single-establishment and multi-establishment enterprises. -
U.S. Census Bureau, 2022 NAICS Manual
Explains the establishment concept, physically dispersed operations, the distinction between establishment and enterprise, and how establishments in multiunit enterprises can fall in different industries. -
U.S. Census Bureau, 2022 NAICS Sector 55
Defines Management of Companies and Enterprises and explains the treatment of holding companies and establishments that administer, oversee, and manage other establishments of the enterprise. -
U.S. Census Bureau, NAICS 5511 Management of Companies and Enterprises
Provides the current industry definition and U.S. detail for corporate, subsidiary, and regional managing offices.
Questions about enterprises and NAICS
Is an enterprise the same as an establishment?
They can be the same for a single-establishment business. A multi-establishment enterprise contains two or more establishments and should not be confused with any one of those operating units.
Does every enterprise have one NAICS code?
Not as a universal NAICS rule. Official statistical classification is establishment-oriented, so a multi-establishment enterprise can contain establishments with different NAICS codes. Other systems may still maintain one or more company-level NAICS fields for their own purposes.
Can establishments in the same enterprise have different NAICS codes?
Yes. A multiunit enterprise can contain establishments in more than one NAICS industry when their primary activities differ.
Is a headquarters always classified in NAICS Sector 55?
No. A separate establishment primarily engaged in administering, overseeing, and managing other establishments of the company can be classified in Sector 55. The actual activity and applicable cross-references still control the classification.
Why can a company show different NAICS codes in different databases?
The databases may be classifying different establishments, assigning a company-level primary industry, using different source information, or applying different classification methodologies.
What should be classified when a specific business location is being analyzed?
For establishment-level NAICS analysis, classify the establishment according to its primary economic activity using the applicable NAICS definitions and guidance.