SIC Code 6733 — Trusts, Except Educational, Religious, and Charitable

4-digit industry in the 1987 Standard Industrial Classification — still requested by banks, insurers, SEC filings and legacy systems.

Code	6733
Title	Trusts, Except Educational, Religious, and Charitable
System	SIC 1987 (final edition — replaced by NAICS in 1997)

The SIC was last revised in 1987 and officially superseded by NAICS in 1997, but it never fully disappeared: the SEC still tags EDGAR filings with SIC codes, and many banks, insurers and legacy databases keep requesting it. That is why converting between the two systems is still routine work.

NAICS equivalents of SIC 6733

From the official U.S. Census concordance (1987 SIC → 2002 NAICS). Where the 2002 code no longer exists in NAICS 2022, the closest current code is shown.

NAICS 2002	Title (2002)	Current 2022 code
523920	Portfolio Management	superseded — closest: 5239 Other Financial Investment Activities
523991	Trust, Fiduciary, and Custody Activities	523991 (same code)
525190	Other Insurance Funds	525190 (same code)
525920	Trusts, Estates, and Agency Accounts	525920 (same code)

Other SIC codes in 67xx

• 6712 — Offices of Bank Holding Companies
• 6719 — Offices of Holding Companies, Not Elsewhere Classified
• 6722 — Management Investment Offices, Open-End
• 6726 — Unit Investment Trusts, Face-Amount Certificate Offices, and Closed-End Management Investment Offices
• 6732 — Educational, Religious, and Charitable Trusts
• 6792 — Oil Royalty Traders
• 6794 — Patent Owners and Lessors
• 6798 — Real Estate Investment Trusts
• 6799 — Investors, Not Elsewhere Classified

Data: 1987 SIC titles (OSHA/Census) and official Census concordance — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.