SIC Code 8733 — Noncommercial Research Organizations

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

Code	8733
Title	Noncommercial Research Organizations
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The SIC was last revised in 1987 and officially superseded by NAICS in 1997, but it never fully disappeared: the SEC still tags EDGAR filings with SIC codes, and many banks, insurers and legacy databases keep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 8733

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
541710	Research and Development in the Physical, Engineering, and Life Sciences	superseded — closest: 54171 Research and Development in the Physical, Engineering, and Life Sciences
541720	Research and Development in the Social Sciences and Humanities	541720 (same code)

Other SIC codes in 87xx

• 8711 — Engineering Services
• 8712 — Architectural Services
• 8713 — Surveying Services
• 8721 — Accounting, Auditing, and Bookkeeping Services
• 8731 — Commercial Physical and Biological Research
• 8732 — Commercial Economic, Sociological, and Educational Research
• 8734 — Testing Laboratories
• 8741 — Management Services
• 8742 — Management Consulting Services
• 8743 — Public Relations Services
• 8744 — Facilities Support Management Services
• 8748 — Business Consulting Services, 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.