531390 — Other Activities Related to Real Estate
Description
This industry comprises establishments primarily engaged in performing real estate related services (except lessors of real estate, offices of real estate agents and brokers, real estate property managers, and offices of real estate appraisers) (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Illustrative Examples
- Real estate escrow agencies
- Real estate listing services
- Real estate fiduciaries' offices
- Landman services
Overview Facts
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 6531 - Real Estate Agents and Managers (via SIC1987:6531→NAICS1997:53139→2002:531390→2007:531390→2012:531390→2017:531390→2022:531390)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC R402 — Real Estate Brokerage Services
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 531390 valid in 2022? ▾
Yes, 531390 is a valid 6-digit 2022 NAICS national industry code representing 'Other Activities Related to Real Estate' under Sector 53 in the official classification index.
What is the SBA size standard for NAICS code 531390? ▾
The Small Business Administration (SBA) has established a small business size standard of $19,500,000 for NAICS code 531390 (Other Activities Related to Real Estate), calculated based on receipts.
What is the legacy SIC equivalent for NAICS 531390? ▾
According to official Census Bureau concordance tables, NAICS code 531390 (Other Activities Related to Real Estate) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 6531 - Real Estate Agents and Managers.
Related Pages & Tools
Further regulatory reference links for NAICS code 531390:
- Sector 53 Directory Hub — List of related industries in the Real Estate and Rental and Leasing sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 531390 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Other Activities Related to Real Estate).
- IRS PBA Code for Real Estate — Principal Business Activity tax reporting details.
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.