Source-first classification search

Find the right
industry code.

Describe what the business actually does. We rank official classification headings, show close alternatives and keep the source and edition visible.

No account. No uploads. Search runs in your browser.

Edition guides: U.S. NAICS 2022 source and scope · SCIAN México 2023 source and scope

Start with the activity

What does the business actually do?

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Enter an activity or code, or choose a market or system to browse the reviewed references.

Official headingsSource and edition always visible
Plain-language guidanceContext for close alternatives
Global referencesNational and international systems
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Start with a real classification question

For a U.S. form, compare custom software work with a published software product before selecting a NAICS 2022 candidate. For a Mexican form, check the receiving authority and SCIAN México 2023 edition. These worked examples have different jurisdictions; they are not a crosswalk or an official assignment.

Search the reviewed examples: NAICS 2022 custom programming (541511), NAICS 2022 software publishing (513210), or SCIAN México 2023 software services (541510).

Browse the reference layer

Classification systems

NAICS 2022 has a complete U.S. structure of codes and titles. The other four systems retain their clearly labeled partial reference sets until their structures and publication rights are separately reviewed.

Coverage register

Markets, without the guesswork

Active means the system has searchable records here. Registry means the market is tracked for future source review, not yet published as searchable code pages.

Method

Built for decisions,
not keyword stuffing.

Every result separates the official heading from our editorial explanation. Close alternatives stay visible so uncertainty can be inspected instead of hidden behind a single score.

01

Start with the activity

Describe the product or service creating most value—not the storefront, payment method or social platform.

02

Narrow the context

Choose the country and make the manufacturing-versus-retail or product-versus-service distinction.

03

Inspect alternatives

Read inclusions, exclusions and neighboring headings before using a result in a form or policy.

04

Confirm with the recipient

A tax agency, insurer, bank or statistical office can apply its own assignment rules. This tool is guidance, not an official assignment.

Good classification starts with good context

Describe the work.
See the trade-offs.

Find a code