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SIC 8611 to NAICS Code Crosswalk

The legacy 1987 SIC code 8611 (Business Associations) maps transitively to modern U.S. Census 2022 NAICS code(s): 813910.

Concordance Concordance Mapping Asset

Source Code Source Industry Target Code Target Industry Relation Concordance Path
SIC 8611 Business Associations NAICS 813910 Business Associations 1:1 SIC1987:8611 → NAICS1997:81391 → 2002:813910 → 2007:813910 → 2012:813910 → 2017:813910 → 2022:813910

Why Concordances Don't Line Up 1:1

The Standard Industrial Classification (SIC) system was established in 1937 and last updated in 1987, organizing businesses by end products. The North American Industry Classification System (NAICS) replaced it in 1997, classifying establishments by production processes. Because of this structural shift, many-to-many relationships are common, requiring chained concordance steps to bridge the historical gap.

Reverse Crosswalk: Going the other way? See the mapping at NAICS 813910 to SIC.

Related Pages & Tools

Primary Ingestion Source

Data sourced from the U.S. Census Bureau Concordances (1997, 2002, 2007, 2012, 2017, and 2022 editions). Last verified on 2026-06-30.