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SIC vs NAICS Codes: What B2B Marketers Need to Know

Blogs
August 19, 2025 5 min read

Quick Answer

Learn how SIC and NAICS codes enhance B2B marketing accuracy in 2026. Discover how industry classification improves targeting, lead quality, data hygiene, ABM precision, and paid media efficiency—helping teams reach the right accounts and accelerate pipeline growth.

When it comes to the world of B2B marketing, accuracy is key. When it comes to account selection and the target marketing of accounts. It can really mean the difference between throwing money away on ill-placed ads and successfully converting expensive, high-value retarget accounts. That is why we want to highlight SIC vs NAICS codes. SIC (Standard Industrial Classification) codes and NAICS (North American Industry Classification System) codes. Though they are often looked at as simple government classification systems, these two codes can be powerful tools for B2B marketers to improve accuracy in targeting, create improved account growth, and improve pipeline velocity.

SIC codes, or standard industrial classification codes, were formed in the 1930s to classify businesses into industries using a four-digit standard. For decades, SIC codes were useful in tracking economic activity for businesses, analysts, and government organizations alike. However, they slowly fell out of use as new industries or updated existing industries with the development of technology and services.

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