SIC code
Definition
Standard Industrial Classification code — a 4-digit industry classifier the federal government has used since 1937. NAICS codes officially replaced SIC in 1997, but SIC is what's still on most ERISA Form 5500 filings.
For brokers
Velora indexes brokers' books and prospect lists by SIC code so renewal-month cadences can be filtered to industry-relevant content (e.g. construction-specific safety messaging in plan-comparison emails).