NAICS Classification API for Market Data

Classify company descriptions, supplier profiles, product listings, and market data into official NAICS industry codes with ranked results and alignment scores. Deterministic, auditable, and built for large-scale business data systems.

Industry Alignment: aligned with the official North American Industry Classification System (NAICS)

Scale: batch and streaming support for large company and supplier datasets

Determinism & auditability:reproducible outputs with structured industry taxonomy alignment

Taxer supports classification at multiple NAICS hierarchy levels, from 2-digit sector codes to detailed 6-digit industry codes.

Systems can also evaluate content across the full taxonomy depth simultaneously, allowing the engine to identify the industry level that best matches the document.

Get API Key

Code
5415	Computer Systems Design and Related Services	0.99
541511	Custom Computer Programming Services	0.88
541512	Computer Systems Design Services	0.84
518210	Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	0.67
5416	Management, Scientific, and Technical Consulting Service	0.63
513210	Software Publishers	0.57
519290	Web Search Portals and All Other Information Services	0.49
541618	Other Management Consulting Services	0.45
541519	Other Computer Related Services	0.40
541690	Other Scientific and Technical Consulting Services	0.38

NAICS Hierarchy Support

NAICS is a hierarchical taxonomy where industry categories become progressively more specific.

Taxer supports classification at every NAICS depth level. This enables several workflows:

Sector-level tagging: assign high-level industries for broad analytics.

Detailed industry tagging: map companies to precise 6-digit NAICS industries.

Full-depth evaluation: evaluate the document across all taxonomy levels simultaneously to identify the strongest industry match.

This is especially useful when working with company descriptions, supplier data, or incomplete business records.

Level	Example
2-digit	54 — Professional, Scientific, and Technical Services
3-digit	541 — Professional, Scientific, and Technical Services
4-digit	5415 — Computer Systems Design and Related Services
5-digit	54151 — Computer Systems Design and Related Services
6-digit	541511 — Custom Computer Programming Services

What Is NAICS?

NAICS is a standardized classification system for business establishments based on the type of economic activity they perform. Maintained by the U.S. Office of Management and Budget, NAICS provides a common framework for collecting, analyzing, and publishing industry statistics across North America.

Each NAICS code represents a specific industry and follows a hierarchical structure, allowing organizations to classify businesses at varying levels of detail—from broad sectors to highly specific industries.

Why NAICS Classification Matters

Industry Standardization: Align company data to a common industry framework used by governments and enterprises.
Market Segmentation: Improve targeting, benchmarking, and competitive analysis by industry.
Analytics & Reporting: Enable accurate economic analysis, market sizing, and industry-level insights.
Compliance & Data Exchange: Support regulatory reporting, data sharing, and cross-system compatibility.

How Our NAICS Tagging Service Works

Our service analyzes your company description, products, or activities to determine the most relevant NAICS classification. It returns the best-fit NAICS code, industry title, and confidence score—making it easy to automate industry tagging across large datasets.

Paste a company description or business activity.
Submit for analysis.
Receive the best-fit NAICS code.

Need to classify thousands of companies? We support bulk NAICS classification and offer a robust API for seamless integration

API example

Request (cURL)

curl -X 'POST' \
  'https://taxer.com/api/v1/classify' \
  -H 'accept: application/json' \
  -H 'X-API-KEY: YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{
  "title": "Senior Frontend Developer",
  "content": "Looking for a frontend developer with strong experience in React, TypeScript, and modern UI frameworks...",
  "taxonomies": {
    "naics2": {
      "limit": 2
    },    
    "naics6": {
      "limit": 4
    }
  }
}'

Response (example)

{
  "status": "success",
  "results": {
    "naics2": [
      {
        "tag": "Information",
        "code": "51",
        "score": 0.8000839108464731
      },
      {
        "tag": "Professional, Scientific, and Technical Services",
        "code": "54",
        "score": 0.7535561633436405
      }
    ],
    "naics6": [
      {
        "tag": "Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers",
        "code": "516210",
        "score": 0.9347890023051671
      },
      {
        "tag": "All Other Publishers",
        "code": "513199",
        "score": 0.8166190459421954
      },
      {
        "tag": "Computer Systems Design Services",
        "code": "541512",
        "score": 0.7138798344590901
      },
      {
        "tag": "All Other Amusement and Recreation Industries",
        "code": "713990",
        "score": 0.711440731097153
      }
    ]
  }
}

NAICS FAQ

What is NAICS?

NAICS (North American Industry Classification System) is the official industry classification system used by the United States, Canada, and Mexico for economic statistics and industry reporting.

It organizes companies into standardized industry categories based on their primary business activities.

How detailed are NAICS codes?

NAICS includes multiple levels of specificity:

2-digit: economic sector
3-digit: subsector
4-digit: industry group
5-digit: NAICS industry
6-digit: national industry detail

Taxer can classify documents at any of these levels depending on the workflow.

Can I classify companies at multiple levels?

Yes. Taxer can evaluate the document across all NAICS hierarchy levels simultaneously, allowing systems to retrieve the best industry match regardless of depth.

This is especially useful when:

company descriptions are incomplete
supplier records contain limited information
multiple industries may apply

Can I classify suppliers and vendors?

Yes. NAICS tagging is commonly used in:

supplier intelligence systems
procurement analytics
vendor classification pipelines
spend analysis platforms

Can I tag in bulk?

Yes. Upload files to classify large company or supplier datasets and retrieve enriched records with NAICS industry codes and ranked matches.

Is output deterministic?

Yes. Given the same input and NAICS taxonomy version, classification outputs remain reproducible.

This is important for analytics pipelines, reporting systems, and enterprise data governance workflows.

Next step: Try the demo with one of your company descriptions, supplier records, or market intelligence documents. See how the system ranks NAICS industry matches based on real business text.

Taxer Pricing

Usage-based pricing with a single credit model across UI, API, and batch processing

See full pricing

free

10,000 credits / month

$0 / monthly

Max file size: 10 MB

API & batch access

starter

100,000 credits / month

$75 / monthly

$0.75 CPM

Max file size: 100 MB

API & batch access

growth

Recommended

1,000,000 credits / month

$500 / monthly

$0.50 CPM

Max file size: 500 MB

API & batch access

Try
NAICS
Classification Now

Ready to classify companies using NAICS? Use the form below to test the API with a real example:

Classification Results

Code

NAICS Classification API for Market Data

NAICS Hierarchy Support

What Is NAICS?

Why NAICS Classification Matters

How Our NAICS Tagging Service Works

API example

NAICS FAQ

What is NAICS?

How detailed are NAICS codes?

Can I classify companies at multiple levels?

Can I classify suppliers and vendors?

Can I tag in bulk?

Is output deterministic?

Taxer Pricing

free

starter

growth

Try NAICS Classification Now

Classification Results

Try
NAICS
Classification Now