Largest building operators companies
Every US-listed building operators company we cover — 7 of them — ranked by market capitalisation, with revenue and earnings taken from their SEC filings.
Combined market cap
$195.519 B
0.2% of all US-listed value
Companies
7
Ranked #71 of 152 industries
Average
$27.931 B
Mean market cap per company
| # | Name | Market cap | Close | Session | Country |
|---|---|---|---|---|---|
| 1 | BrookfieldBN | $108.0B | $44.08 | +0.23% | Canada |
| 2 | Brookfield Asset ManagementBAM | $86.0B | $52.49 | -1.28% | Unknown |
| 3 | Piedmont Realty TrustPDM | $1.19B | $9.48 | +0.53% | United States |
| 4 | New England Realty Associates Limited PartnershipNEN | $157.0M | $56.30 | +0.00% | United States |
| 5 | Mays J WMAYS | $78.2M | $38.79 | +0.00% | United States |
| 6 | IntergroupINTG | $67.4M | $31.36 | +3.35% | United States |
| 7 | GyrodyneGYRO | $11.9M | $5.40 | +0.00% | United States |
All 7 companies. One row per company — secondary share classes are folded into their primary listing. Updated 9 Aug 2026.
Sectors building operators companies sit in
Other industries
Semiconductors 100Computer Software: Programming Data Processing 77Computer Software: Prepackaged Software 232Computer Manufacturing 10Biotechnology: Pharmaceutical Preparations 501Major Banks 245Industrial Machinery/Components 209Catalog/Specialty Distribution 30Business Services 93Commercial Banks 35Auto Manufacturing 29Integrated oil Companies 18Investment Bankers/Brokers/Service 68Real Estate Investment Trusts 179Department/Specialty Retail Stores 14Oil & Gas Production 116Telecommunications Equipment 82Beverages (Production/Distribution) 35Electronic Components 21Finance: Consumer Services 163Electric Utilities: Central 59Consumer Electronics/Appliances 23Natural Gas Distribution 29Medical Specialities 44All industries →
Figures come from SEC filings and daily market prices. Companies listed only outside the US are not covered — see methodology.