US Public Companies
public-companies
Every SEC-registered operating company with a security listed on a US exchange, each with the vertical its SIC code gives.
Median score
53
across 1745 sites
Middle half
44–59
spread around the median
Full range
18–77
lowest to highest
Gated
700 of 1745
block AI crawlers outright
Middle of 14 cohorts. All cohorts 50 · best cohort 58.
Where this list came from
The source, and how we filtered it
| Source | SEC company tickers by exchange, with EDGAR submissions (SIC code, website) and, for the S&P 500 flag, the Wikipedia constituent list, US Securities and Exchange Commission (SEC), with Wikidata and Wikipedia (2026-10-11) |
|---|---|
| License | SEC filings and the SEC's published data files are a work of the United States federal government and carry no domestic copyright (17 U.S.C. § 105). Web addresses found nowhere on EDGAR come from Wikidata (CC0) or from our own crawl of the S&P 500 list, disclosed per row. Membership of the S&P 500 comes from Wikipedia's constituent list, CC BY-SA 4.0, the same license this cohort goes out under; “S&P 500” is a registered trademark of S&P Dow Jones Indices LLC, naming the constituents is descriptive use, and nothing here is endorsed by or affiliated with S&P. |
| How we filtered it | Every CIK the SEC lists with a security on Nasdaq, NYSE, CBOE or TXSE (OTC and unlisted entries are not listed securities and are left out), read against its EDGAR submissions record for the SIC code, the company's own website and its tickers. Excluded as not operating companies: SIC 6221 (commodity pools and trusts), 6726 (unit investment trusts and investment vehicles), 6189 (asset-backed issuers), 6770 (blank-check shells), registrants with no SIC code (ETFs and grantor trusts) and registrants whose name says fund or exchange-traded product. A company with several share classes is one row. The web address is EDGAR's own `website` where it has one; else the address found by crawling for the S&P 500 list; else Wikidata's official website (P856) for the entity whose SEC CIK property (P5531) matches; else the row stays with a note. Each row says which. The vertical of each row is its SIC code's, through one table with ticker overrides (ten7_air/census/build_public_companies.py). Companies that share a website are all kept and measured once. The roster is as of the build date, and rows are in CIK order because the SEC data carries no measure of size to rank by. See scripts/prepare_public_companies.py. |
| Instead of | The S&P 500 alone, which this replaces: a list of 500 chosen by a committee, where the SEC's is every listed company and the 500 stay identifiable inside it. |
| Built | 2026-10-11 |
The filtering is ours and is disclosed as ours. The source published a list; the decision about which rows of it belong in a cohort was a judgment call, and it is written down so somebody can disagree with it.
Distribution
Where the 1745 sites land
| Grade | Share of the cohort | Sites | Share |
|---|---|---|---|
| Adequate | 427 | 24.5% | |
| Not ready | 315 | 18.1% | |
| Weak | 996 | 57.1% | |
| Strong | 7 | 0.4% |
By dimension
What the cohort earns, dimension by dimension
The mean share of each dimension’s available points that this cohort earned. Low here means the whole sector is weak on it, not that one site dragged an average down. The per-site spread is in the dataset.
| Dimension | Mean share earned | Mean |
|---|---|---|
| #1 · Reach
These parameters determine the fundamental ease of access that AI has to your site information. |
72% | |
| #2 · Read
AI generally turns off JavaScript. Does your site information survive without it? |
45% | |
| #3 · Understand
Does a machine know who and what you are? |
29% | |
| #4 · Act
Sitemaps, redirects, 404s, licensing terms, and not wasting the crawl budget. |
63% |
How much of each site we read
The cap is 32 URLs and it is a ceiling, not a promise. A portal whose every link points at a different host yields one page; a university yields the full sample. The median here is 32, the range 1–32, published so that "we sampled 32 URLs per site" cannot become a claim the data does not support.
51 sites in this cohort served a certificate we could not verify. They were read anyway and scored normally, because reporting no response for a site every browser loads would describe our TLS stack rather than the site, and each one carries the finding in its row.
Where this cohort fails
2 tests almost nobody in this cohort passes
Universal — nobody passes these
Near-universal — 95% and above
| Test | What it asks | Failing | Of | Points |
|---|---|---|---|---|
| EXT-12 | Do you tell search engines the moment a page changes? | 1745 | 0 | |
| EXT-16 | Do you publish a card or a skills list for the agents you run? | 1745 | 0 | |
| EXT-11 | Have you marked the part of a page that answers a spoken question? | 1745 | 0 | |
| PST-2 | Have you posted a Content Signals statement about what AI may do with your content? | 1745 | 0 | |
| EXT-2 | Do you list your APIs and agent tools where agents look for them? | 259 | 0 | |
| RED-10 | Do you offer a plain-text (Markdown) copy of your pages? | 1272 | 2 | |
| EXT-14 | Does your site offer its actions to AI browsers as tools? | 1603 | 0 | |
| RED-12 | If a machine asks for Markdown, does your site give it? | 1745 | 2 | |
| EXT-18 | Do you tell AI shoppers how they can pay? | 188 | 0 | |
| RED-5 | Do your PDFs and images have their own rules for search and quoting? | 1147 | 1 | |
| EXT-15 | Can an AI agent find out how to sign in to your site? | 21 | 0 |
Common — 90 to 95%
Coral bars mark tests worth 2 points or more, the failures that actually move a score.
Every site
Every 5,239, named, with a report for each
Whether or not it has been scanned. Rows with no website on record, sites that were unreachable and sites that turned us away stay in the table with the reason on them, and none of them enters an average: dropping them would shrink the population to the part that was easy to measure. A few points between two neighbors is noise. The box filters every row in the cohort, not only the page you are on; click a header to sort the rows on this page by name or by score.
Showing 601–700 of 5,239 · page 7 of 53
| Site | Score | Gated | Pages read | Report |
|---|---|---|---|---|
| Seacoast Banking Corp of Florida no website on recordSBCF · State Commercial Banks (SIC 6022); no web address found | — | No | — | |
| Healthcare Services Group Inc no website on recordHCSG · Services-Nursing & Personal Care Facilities (SIC 8050); no web address found | — | No | — | |
| United Bancorp Inc /Oh/ no website on recordUBCP · State Commercial Banks (SIC 6022); no web address found | — | No | — | |
| Unitedhealth Group Inc unitedhealthgroup.comUNH · Hospital & Medical Service Plans (SIC 6324); S&P 500 · Health Care; web address found by crawling for the S&P 500 list, not carried by EDGAR | 62 | No | 32 | |
| Atmos Energy Corp atmosenergy.comATO · Natural Gas Distribution (SIC 4924); S&P 500 · Utilities; web address found by crawling for the S&P 500 list, not carried by EDGAR | 58 | No | 1 | |
| Trio-Tech International no website on recordTRT · Special Industry Machinery, NEC (SIC 3559); no web address found | — | No | — | |
| Verizon Communications Inc verizon.comVZ · Telephone Communications (No Radiotelephone) (SIC 4813); S&P 500 · Communication Services; web address found by crawling for the S&P 500 list, not carried by EDGAR | 47 | No | 32 | |
| At&t Inc. att.comblockedT, TBB, T-PA · Telephone Communications (No Radiotelephone) (SIC 4813); S&P 500 · Communication Services; web address found by crawling for the S&P 500 list, not carried by EDGAR; not measured: HTTP 403 (Akamai) | — | No | — | |
| Rogers Communications Inc rogers.comRCI · Cable & Other Pay Television Services (SIC 4841); web address from Wikidata (P856), not EDGAR | 70 | No | 32 | |
| LiveRamp Holdings, Inc. liveramp.comRAMP · Services-Computer Processing & Data Preparation (SIC 7374); web address from Wikidata (P856), not EDGAR | 70 | No | 32 | |
| Transcontinental Realty Investors Inc no website on recordTCI · Real Estate Investment Trusts (SIC 6798); no web address found | — | No | — | |
| Intrusion Inc no website on recordINTZ · Computer Communications Equipment (SIC 3576); no web address found | — | No | — | |
| Cnb Financial Corp/PA no website on recordCCNE, CCNEP · State Commercial Banks (SIC 6022); no web address found | — | No | — | |
| Washington Trust Bancorp Inc no website on recordWASH · State Commercial Banks (SIC 6022); no web address found | — | No | — | |
| Toro Co toro.frTTC · Lawn & Garden Tractors & Home Lawn & Gardens Equip (SIC 3524); web address from Wikidata (P856), not EDGAR | 47 | No | 1 | |
| Aemetis, Inc no website on recordAMTX · Industrial Organic Chemicals (SIC 2860); no web address found | — | No | — | |
| Citizens Financial Services Inc no website on recordCZFS · State Commercial Banks (SIC 6022); no web address found | — | No | — | |
| Ventas, Inc. ventas.comVTR · Real Estate Investment Trusts (SIC 6798); S&P 500 · Real Estate; web address found by crawling for the S&P 500 list, not carried by EDGAR | 41 | Gated | 1 | |
| R F Industries Ltd no website on recordRFIL · Electronic Connectors (SIC 3678); no web address found | — | No | — | |
| Rpc Inc no website on recordRES · Oil & Gas Field Services, NEC (SIC 1389); no web address found | — | No | — | |
| Bar Harbor Bankshares no website on recordBHB · State Commercial Banks (SIC 6022); no web address found | — | No | — | |
| REX AMERICAN RESOURCES Corp no website on recordREX · Industrial Organic Chemicals (SIC 2860); no web address found | — | No | — | |
| Celldex Therapeutics, Inc. celldex.comCLDX · In Vitro & In Vivo Diagnostic Substances (SIC 2835); web address from Wikidata (P856), not EDGAR | 68 | No | 32 | |
| American Shared Hospital Services no website on recordAMS · Services-Medical Laboratories (SIC 8071); no web address found | — | No | — | |
| ST JOE Co no website on recordJOE · Land Subdividers & Developers (No Cemeteries) (SIC 6552); no web address found | — | No | — | |
| Ross Stores, Inc. rossstores.comROST · Retail-Family Clothing Stores (SIC 5651); S&P 500 · Consumer Discretionary; web address found by crawling for the S&P 500 list, not carried by EDGAR | 59 | Gated | 21 | |
| TaoWeave, Inc. no website on recordTWAV · Services-Computer Programming, Data Processing, Etc. (SIC 7370); no web address found | — | No | — | |
| New England Realty Associates Limited Partnership no website on recordNEN · Operators of Apartment Buildings (SIC 6513); no web address found | — | No | — | |
| Expeditors International of Washington Inc expeditors.comEXPD · Arrangement of Transportation of Freight & Cargo (SIC 4731); S&P 500 · Industrials; web address found by crawling for the S&P 500 list, not carried by EDGAR | 49 | No | 32 | |
| Brady Corp bradycorp.comBRC · Miscellaneous Manufacturing Industries (SIC 3990); web address from Wikidata (P856), not EDGAR | 33 | Gated | 1 | |
| Unisys Corp unisys.comblockedUIS · Services-Computer Integrated Systems Design (SIC 7373); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 (Cloudflare) | — | No | — | |
| Red Cat Holdings, Inc. no website on recordRCAT · Services-Prepackaged Software (SIC 7372); no web address found | — | No | — | |
| Ernexa Therapeutics Inc. no website on recordERNA, ERNAW · Pharmaceutical Preparations (SIC 2834); no web address found | — | No | — | |
| Magna International Inc magna.comMGA · Motor Vehicle Parts & Accessories (SIC 3714); web address from Wikidata (P856), not EDGAR | 60 | No | 32 | |
| Gartner Inc gartner.comblockedIT · Services-Management Services (SIC 8741); S&P 500 · Information Technology; web address found by crawling for the S&P 500 list, not carried by EDGAR; not measured: HTTP 403 (Cloudflare) | — | No | — | |
| Imunon, Inc. no website on recordIMNN · Pharmaceutical Preparations (SIC 2834); no web address found | — | No | — | |
| Qnb Corp. no website on recordQNBC · State Commercial Banks (SIC 6022); no web address found | — | No | — | |
| Auburn National Bancorporation, Inc auburnbank.comAUBN · State Commercial Banks (SIC 6022); web address from Wikidata (P856), not EDGAR | 33 | Gated | 1 | |
| Hancock Whitney Corp hancockwhitney.comHWC, HWCPZ · State Commercial Banks (SIC 6022); web address from Wikidata (P856), not EDGAR | 58 | No | 32 | |
| Camden National Corp camdennationalcorporation.comblockedCAC · National Commercial Banks (SIC 6021); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 (Cloudflare) | — | No | — | |
| Nnn Reit, Inc. nnnreit.comNNN · Real Estate Investment Trusts (SIC 6798); web address from Wikidata (P856), not EDGAR | 44 | Gated | 32 | |
| Virco Mfg Corporation no website on recordVIRC · Public Bldg & Related Furniture (SIC 2531); no web address found | — | No | — | |
| Vicor Corp vicorpower.comVICR · Electronic Components, NEC (SIC 3679); web address from Wikidata (P856), not EDGAR | 48 | No | 1 | |
| Umh Properties, Inc. umh.comUMH, UMH-PD · Real Estate Investment Trusts (SIC 6798); web address from Wikidata (P856), not EDGAR | 28 | Gated | 1 | |
| McGrath Rentcorp no website on recordMGRC · Services-Equipment Rental & Leasing, NEC (SIC 7359); no web address found | — | No | — | |
| Nextera Energy Inc nexteraenergy.comNEE, NEE-PN, NEE-PS · Electric Services (SIC 4911); S&P 500 · Utilities; web address found by crawling for the S&P 500 list, not carried by EDGAR | 60 | No | 32 | |
| U S Global Investors Inc no website on recordGROW · Investment Advice (SIC 6282); no web address found | — | No | — | |
| Unitil Corp unitil.comUTL · Electric & Other Services Combined (SIC 4931); web address from Wikidata (P856), not EDGAR | 67 | No | 32 | |
| Barrick Mining Corp no website on recordB · Gold and Silver Ores (SIC 1040); no web address found | — | No | — | |
| Citizens Financial Group Inc/Ri citizensbank.comblockedCFG, CFG-PE, CFG-PH · State Commercial Banks (SIC 6022); S&P 500 · Financials; web address found by crawling for the S&P 500 list, not carried by EDGAR; not measured: HTTP 403 (Akamai) | — | No | — | |
| Bancfirst Corp /Ok/ bancfirst.bankBANF, BANFP · National Commercial Banks (SIC 6021); web address from Wikidata (P856), not EDGAR | 59 | No | 32 | |
| Cedar Realty Trust, Inc. cedarrealtytrust.comCDR-PB, CDR-PC · Real Estate Investment Trusts (SIC 6798); web address from Wikidata (P856), not EDGAR | 33 | Gated | 1 | |
| Lsi Industries Inc no website on recordLYTS · Electric Lighting & Wiring Equipment (SIC 3640); no web address found | — | No | — | |
| Chemung Financial Corp no website on recordCHMG · State Commercial Banks (SIC 6022); no web address found | — | No | — | |
| Lci Industries no website on recordLCII · Motor Vehicle Parts & Accessories (SIC 3714); no web address found | — | No | — | |
| Popular, Inc. popular.viBPOP, BPOPM · State Commercial Banks (SIC 6022); web address from Wikidata (P856), not EDGAR | 40 | Gated | 21 | |
| First United Corp/MD/ no website on recordFUNC · National Commercial Banks (SIC 6021); no web address found | — | No | — | |
| SouthState Bank Corp southstatebank.comblockedSSB · State Commercial Banks (SIC 6022); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 (Cloudflare) | — | No | — | |
| Cleveland-Cliffs Inc. clevelandcliffs.comCLF · Metal Mining (SIC 1000); web address from Wikidata (P856), not EDGAR | 64 | No | 32 | |
| Altria Group, Inc. altria.comMO · Cigarettes (SIC 2111); S&P 500 · Consumer Staples; web address found by crawling for the S&P 500 list, not carried by EDGAR | 33 | Gated | 1 | |
| Insteel Industries Inc no website on recordIIIN · Steel Works, Blast Furnaces & Rolling & Finishing Mills (SIC 3310); no web address found | — | No | — | |
| Best Buy Co Inc bestbuy.comBBY · Retail-Radio, Tv & Consumer Electronics Stores (SIC 5731); S&P 500 · Consumer Discretionary; web address found by crawling for the S&P 500 list, not carried by EDGAR | 48 | Gated | 12 | |
| Pinnacle West Capital Corp pinnaclewest.comPNW · Electric Services (SIC 4911); S&P 500 · Utilities; web address found by crawling for the S&P 500 list, not carried by EDGAR | 35 | Gated | 1 | |
| First Bancorp, Inc /ME/ no website on recordFNLC · National Commercial Banks (SIC 6021); no web address found | — | No | — | |
| Healthpeak Properties, Inc. hcpi.comDOC · Real Estate Investment Trusts (SIC 6798); S&P 500 · Real Estate; web address found by crawling for the S&P 500 list, not carried by EDGAR | 33 | Gated | 1 | |
| Caledonia Mining Corp Plc no website on recordCMCL · Gold and Silver Ores (SIC 1040); no web address found | — | No | — | |
| Alaska Air Group, Inc. investor.alaskaair.comALK · Air Transportation, Scheduled (SIC 4512); web address from Wikidata (P856), not EDGAR | 73 | No | 1 | |
| Welltower Inc. welltower.comWELL · Real Estate Investment Trusts (SIC 6798); S&P 500 · Real Estate; web address found by crawling for the S&P 500 list, not carried by EDGAR | 49 | Gated | 32 | |
| Cvd Equipment Corp no website on recordCVV · Special Industry Machinery, NEC (SIC 3559); no web address found | — | No | — | |
| H2O America sjwgroup.comblockedHTO · Water Supply (SIC 4941); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 | — | No | — | |
| Sb Financial Group, Inc. no website on recordSBFG · State Commercial Banks (SIC 6022); no web address found | — | No | — | |
| TrueBlue, Inc. trueblue.comTBI · Services-Help Supply Services (SIC 7363); web address from Wikidata (P856), not EDGAR | 63 | No | 32 | |
| Aegon Ltd. aegon.comAEG, AEFC · Life Insurance (SIC 6311); web address from Wikidata (P856), not EDGAR | 50 | No | 1 | |
| Autodesk, Inc. autodesk.comblockedADSK · Services-Prepackaged Software (SIC 7372); S&P 500 · Information Technology; web address found by crawling for the S&P 500 list, not carried by EDGAR; not measured: HTTP 403 (Akamai) | — | No | — | |
| MIDDLEBY Corp middleby.comMIDD · Refrigeration & Service Industry Machinery (SIC 3580); web address from Wikidata (P856), not EDGAR | 54 | No | 32 | |
| Kopin Corp kopin.comKOPN · Semiconductors & Related Devices (SIC 3674); web address from Wikidata (P856), not EDGAR | 57 | Gated | 32 | |
| Abm Industries Inc /DE/ abm.comABM · Services-To Dwellings & Other Buildings (SIC 7340); web address from Wikidata (P856), not EDGAR | 67 | No | 32 | |
| Champions Oncology, Inc. championsoncology.comCSBR · Biological Products, (No Diagnostic Substances) (SIC 2836); web address from Wikidata (P856), not EDGAR | 59 | No | 32 | |
| Pan American Silver Corp no website on recordPAAS · Gold and Silver Ores (SIC 1040); no web address found | — | No | — | |
| Dss, Inc. no website on recordDSS · Paperboard Containers & Boxes (SIC 2650); no web address found | — | No | — | |
| Cirrus Logic, Inc. cirrus.comCRUS · Semiconductors & Related Devices (SIC 3674); web address from Wikidata (P856), not EDGAR | 47 | No | 31 | |
| Honeywell International Inc honeywell.comHON · Aircraft Engines & Engine Parts (SIC 3724); S&P 500 · Industrials; web address found by crawling for the S&P 500 list, not carried by EDGAR | 49 | Gated | 32 | |
| Oshkosh Corp oshkoshcorp.comOSK · Motor Vehicles & Passenger Car Bodies (SIC 3711); web address from Wikidata (P856), not EDGAR | 48 | No | 32 | |
| HBT Financial, Inc. no website on recordHBT · State Commercial Banks (SIC 6022); no web address found | — | No | — | |
| White Mountains Insurance Group Ltd whitemountains.comWTM · Fire, Marine & Casualty Insurance (SIC 6331); web address from Wikidata (P856), not EDGAR | 57 | No | 32 | |
| Independent Bank Corp no website on recordINDB · State Commercial Banks (SIC 6022); no web address found | — | No | — | |
| Alto Ingredients, Inc. altoscomputing.comALTO · Industrial Organic Chemicals (SIC 2860); web address from Wikidata (P856), not EDGAR | 46 | No | 1 | |
| Jack Henry & Associates Inc jackhenry.comJKHY · Services-Computer Integrated Systems Design (SIC 7373); S&P 500 · Financials; web address found by crawling for the S&P 500 list, not carried by EDGAR | 69 | No | 32 | |
| Ark Restaurants Corp no website on recordARKR · Retail-Eating Places (SIC 5812); no web address found | — | No | — | |
| Itron, Inc. itron.comITRI · Instruments For Meas & Testing of Electricity & Elec Signals (SIC 3825); web address from Wikidata (P856), not EDGAR | 66 | No | 32 | |
| Vista Gold Corp no website on recordVGZ · Gold and Silver Ores (SIC 1040); no web address found | — | No | — | |
| Wec Energy Group, Inc. wecenergygroup.comWEC · Electric & Other Services Combined (SIC 4931); S&P 500 · Utilities; web address found by crawling for the S&P 500 list, not carried by EDGAR | 55 | No | 7 | |
| Daily Journal Corp dailyjournal.comDJCO · Newspapers: Publishing or Publishing & Printing (SIC 2711); web address from Wikidata (P856), not EDGAR | 38 | Gated | 31 | |
| Artivion, Inc. cryolife.comAORT · Surgical & Medical Instruments & Apparatus (SIC 3841); web address from Wikidata (P856), not EDGAR | 33 | Gated | 1 | |
| Portland General Electric Co /Or/ portlandgeneral.comPOR · Electric Services (SIC 4911); web address from Wikidata (P856), not EDGAR | 63 | No | 32 | |
| Encompass Health Corp encompasshealth.comEHC · Services-Hospitals (SIC 8060); web address from Wikidata (P856), not EDGAR | 59 | No | 32 | |
| DLH Holdings Corp. no website on recordDLHC · Services-Help Supply Services (SIC 7363); no web address found | — | No | — | |
| Plexus Corp plexus.comPLXS · Printed Circuit Boards (SIC 3672); web address from Wikidata (P856), not EDGAR | 48 | No | 1 | |
| J&j Snack Foods Corp jjsnack.comJJSF · Cookies & Crackers (SIC 2052); web address from Wikidata (P856), not EDGAR | 32 | Gated | 32 | |
| Natural Alternatives International Inc nai-online.comblockedNAII · Medicinal Chemicals & Botanical Products (SIC 2833); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 (Cloudflare) | — | No | — |
Scores are for the population, not for ranking two named sites against each other. A few points between neighbors is noise. See what these numbers can and cannot support. Data: sites.csv · checks.csv · summary.json