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 1,201–1,300 of 5,239 · page 13 of 53
| Site | Score | Gated | Pages read | Report |
|---|---|---|---|---|
| Ciena Corp ciena.comblockedCIEN · Telephone & Telegraph Apparatus (SIC 3661); 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 | — | |
| Lockheed Martin Corp lockheedmartin.comLMT · Guided Missiles & Space Vehicles & Parts (SIC 3760); S&P 500 · Industrials; web address found by crawling for the S&P 500 list, not carried by EDGAR | 48 | No | 32 | |
| Wafd Inc wafdbank.comWAFD, WAFDP · National Commercial Banks (SIC 6021); web address from Wikidata (P856), not EDGAR | 52 | No | 32 | |
| Trinet Group, Inc. trinet.comTNET · Services-Business Services, NEC (SIC 7389); web address from Wikidata (P856), not EDGAR | 53 | No | 32 | |
| Asml Holding Nv asml.comASML · Special Industry Machinery, NEC (SIC 3559); web address from Wikidata (P856), not EDGAR | 62 | No | 32 | |
| Pearson Plc pearson.comPSO · Books: Publishing or Publishing & Printing (SIC 2731); web address from Wikidata (P856), not EDGAR | 40 | Gated | 32 | |
| Exelixis, Inc. exelixis.comEXEL · Biological Products, (No Diagnostic Substances) (SIC 2836); web address from Wikidata (P856), not EDGAR | 49 | Gated | 32 | |
| Hub Group, Inc. hubgroup.comHUBG · Arrangement of Transportation of Freight & Cargo (SIC 4731); web address from Wikidata (P856), not EDGAR | 62 | Gated | 32 | |
| Darden Restaurants Inc darden.comDRI · Retail-Eating Places (SIC 5812); S&P 500 · Consumer Discretionary; web address found by crawling for the S&P 500 list, not carried by EDGAR | 53 | No | 31 | |
| ICL Group Ltd. icl-group.comICL · Agricultural Chemicals (SIC 2870); web address from Wikidata (P856), not EDGAR | 51 | No | 32 | |
| Westinghouse Air Brake Technologies Corp wabteccorp.comWAB · Railroad Equipment (SIC 3743); S&P 500 · Industrials; web address found by crawling for the S&P 500 list, not carried by EDGAR | 60 | Gated | 32 | |
| Resmed Inc resmed.comblockedRMD · Surgical & Medical Instruments & Apparatus (SIC 3841); S&P 500 · Health Care; web address found by crawling for the S&P 500 list, not carried by EDGAR; not measured: HTTP 403 (Akamai) | — | No | — | |
| Socket Mobile, Inc. no website on recordSCKT · Electronic Computers (SIC 3571); no web address found | — | No | — | |
| CBIZ, Inc. no website on recordCBZ · Services-Business Services, NEC (SIC 7389); no web address found | — | No | — | |
| Hanover Insurance Group, Inc. hanover.comTHG · Fire, Marine & Casualty Insurance (SIC 6331); web address from Wikidata (P856), not EDGAR | 53 | No | 32 | |
| Civista Bancshares, Inc. no website on recordCIVB · State Commercial Banks (SIC 6022); no web address found | — | No | — | |
| Opko Health, Inc. opko.comOPK · Pharmaceutical Preparations (SIC 2834); web address from Wikidata (P856), not EDGAR | 56 | No | 32 | |
| GLOBAL INDUSTRIAL Co no website on recordGIC · Wholesale-Industrial Machinery & Equipment (SIC 5084); no web address found | — | No | — | |
| Service Properties Trust no website on recordSVC · Real Estate Investment Trusts (SIC 6798); no web address found | — | No | — | |
| Pool Corp no website on recordPOOL · Wholesale-Misc Durable Goods (SIC 5090); no web address found | — | No | — | |
| Climb Global Solutions, Inc. no website on recordCLMB · Wholesale-Computers & Peripheral Equipment & Software (SIC 5045); no web address found | — | No | — | |
| Ellomay Capital Ltd. ellomay.comELLO · Electric Services (SIC 4911); web address from Wikidata (P856), not EDGAR | 55 | Gated | 23 | |
| Retractable Technologies Inc no website on recordRVP · Surgical & Medical Instruments & Apparatus (SIC 3841); no web address found | — | No | — | |
| Take Two Interactive Software Inc take2games.comblockedTTWO · Services-Prepackaged Software (SIC 7372); S&P 500 · Communication Services; web address found by crawling for the S&P 500 list, not carried by EDGAR; not measured: HTTP 403 (CloudFront) | — | No | — | |
| AIM ImmunoTech Inc. no website on recordAIM · Biological Products, (No Diagnostic Substances) (SIC 2836); no web address found | — | No | — | |
| Banner Corp no website on recordBANR · State Commercial Banks (SIC 6022); no web address found | — | No | — | |
| Deswell Industries Inc no website on recordDSWL · Plastics Products, NEC (SIC 3089); no web address found | — | No | — | |
| Toronto Dominion Bank td.comTD · Commercial Banks, NEC (SIC 6029); web address from Wikidata (P856), not EDGAR | 54 | No | 32 | |
| Arch Capital Group Ltd. archcapgroup.comACGL, ACGLN, ACGLO · Fire, Marine & Casualty Insurance (SIC 6331); S&P 500 · Financials; web address found by crawling for the S&P 500 list, not carried by EDGAR | 58 | Gated | 1 | |
| LifeMD, Inc. no website on recordLFMD, LFMDP · Services-Offices & Clinics of Doctors of Medicine (SIC 8011); no web address found | — | No | — | |
| Smith Micro Software, Inc. smithmicro.comSMSI · Services-Prepackaged Software (SIC 7372); web address from Wikidata (P856), not EDGAR | 69 | No | 32 | |
| Century Aluminum Co centuryaluminum.comCENX · Primary Production of Aluminum (SIC 3334); web address from Wikidata (P856), not EDGAR | 57 | No | 32 | |
| Achieve Life Sciences, Inc. no website on recordACHV · In Vitro & In Vivo Diagnostic Substances (SIC 2835); no web address found | — | No | — | |
| Boston Beer Co Inc bostonbeer.comSAM · Malt Beverages (SIC 2082); web address from Wikidata (P856), not EDGAR | 44 | Gated | 1 | |
| Income Opportunity Realty Investors Inc /TX/ no website on recordIOR · Real Estate Investment Trusts (SIC 6798); no web address found | — | No | — | |
| NORDIC AMERICAN TANKERS Ltd no website on recordNAT · Water Transportation (SIC 4400); no web address found | — | No | — | |
| Sap Se sap.comblockedSAP · Services-Prepackaged Software (SIC 7372); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 (Akamai) | — | No | — | |
| Medallion Financial Corp no website on recordMFIN, MBNKO · Finance Services (SIC 6199); no web address found | — | No | — | |
| Henry Schein Inc henryschein.comHSIC · Wholesale-Medical, Dental & Hospital Equipment & Supplies (SIC 5047); S&P 500 · Health Care; web address found by crawling for the S&P 500 list, not carried by EDGAR | 35 | Gated | 1 | |
| Optical Cable Corp occfiber.comOCC · Drawing & Insulating of Nonferrous Wire (SIC 3357); web address from Wikidata (P856), not EDGAR | 28 | Gated | 1 | |
| Royal Bank of Canada rbc.comRY · Commercial Banks, NEC (SIC 6029); web address from Wikidata (P856), not EDGAR | 56 | No | 31 | |
| Mativ Holdings, Inc. no website on recordMATV · Paper Mills (SIC 2621); no web address found | — | No | — | |
| Novavax Inc novavax.comNVAX · Biological Products, (No Diagnostic Substances) (SIC 2836); web address from Wikidata (P856), not EDGAR | 63 | No | 26 | |
| Waters Corp /DE/ waters.comWAT · Laboratory Analytical Instruments (SIC 3826); S&P 500 · Health Care; web address found by crawling for the S&P 500 list, not carried by EDGAR | 33 | Gated | 1 | |
| Insperity, Inc. insperity.comblockedNSP · Services-Help Supply Services (SIC 7363); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 (Cloudflare) | — | No | — | |
| BROOKFIELD Corp /ON/ brookfield.comBN, BNH, BNJ · Opeators of Nonresidential Buildings (SIC 6512); web address from Wikidata (P856), not EDGAR | 64 | No | 32 | |
| Geospace Technologies Corp geospace.comGEOS · Measuring & Controlling Devices, NEC (SIC 3829); web address from Wikidata (P856), not EDGAR | 49 | No | 32 | |
| Broadway Financial Corp \DE\ broadwayfederalbank.comBYFC · Savings Institution, Federally Chartered (SIC 6035); web address from Wikidata (P856), not EDGAR | 61 | No | 1 | |
| Estee Lauder Companies Inc elcompanies.comblockedEL · Perfumes, Cosmetics & Other Toilet Preparations (SIC 2844); S&P 500 · Consumer Staples; vertical set by hand: a consumer brand that sells direct online; its SIC code is the factory's; web address found by crawling for the S&P 500 list, not carried by EDGAR; not measured: HTTP 403 (Cloudflare) | — | No | — | |
| Credicorp Ltd no website on recordBAP · Commercial Banks, NEC (SIC 6029); no web address found | — | No | — | |
| Tg Therapeutics, Inc. tgtherapeutics.comTGTX · Pharmaceutical Preparations (SIC 2834); web address from Wikidata (P856), not EDGAR | 71 | No | 32 | |
| NWPX Infrastructure, Inc. no website on recordNWPX · Steel Pipe & Tubes (SIC 3317); no web address found | — | No | — | |
| Riley Exploration Permian, Inc. no website on recordREPX · Crude Petroleum & Natural Gas (SIC 1311); no web address found | — | No | — | |
| Perusahaan Perseroan Persero Pt Telekomunikasi Indonesia Tbk telkom.co.idTLK · Telephone Communications (No Radiotelephone) (SIC 4813); web address from Wikidata (P856), not EDGAR | 49 | No | 32 | |
| Southern Copper Corp/ southerncoppercorp.comblockedSCCO · Metal Mining (SIC 1000); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 | — | No | — | |
| ASTROTECH Corp astrotechcorp.comASTC · Laboratory Analytical Instruments (SIC 3826); web address from Wikidata (P856), not EDGAR | 43 | Gated | 23 | |
| NetApp, Inc. netapp.comblockedNTAP · Computer Storage Devices (SIC 3572); S&P 500 · Information Technology; web address found by crawling for the S&P 500 list, not carried by EDGAR; not measured: HTTP 403 | — | No | — | |
| Eni Spa eni.comE · Crude Petroleum & Natural Gas (SIC 1311); web address from Wikidata (P856), not EDGAR | 64 | No | 32 | |
| Star Group, L.p. no website on recordSGU · Retail-Retail Stores, NEC (SIC 5990); no web address found | — | No | — | |
| Open Text Corp opentext.comOTEX · Services-Computer Integrated Systems Design (SIC 7373); web address from Wikidata (P856), not EDGAR | 48 | No | 1 | |
| Ameren Corp ameren.comblockedAEE · 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; not measured: challenge page (Imperva) | — | No | — | |
| Msc Industrial Direct Co Inc mscdirect.comblockedMSM · Wholesale-Industrial Machinery & Equipment (SIC 5084); web address from Wikidata (P856), not EDGAR; not measured: challenge page (Imperva) | — | No | — | |
| NICE Ltd. nice.comNICE · Services-Prepackaged Software (SIC 7372); web address from Wikidata (P856), not EDGAR | 64 | No | 32 | |
| National Grid Plc nationalgrid.comblockedNGG · Natural Gas Transmission (SIC 4922); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 (Cloudflare) | — | No | — | |
| Affiliated Managers Group, Inc. amg.comAMG, MGR, MGRB · Investment Advice (SIC 6282); web address from Wikidata (P856), not EDGAR | 53 | No | 32 | |
| Oceanfirst Financial Corp oceanfirst.comOCFC · National Commercial Banks (SIC 6021); web address from Wikidata (P856), not EDGAR | 65 | No | 32 | |
| PG&E Corp pge.comPCG, PCG-PE, PCG-PD · 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 | 61 | No | 32 | |
| Marygold Companies, Inc. no website on recordMGLD · Finance Services (SIC 6199); no web address found | — | No | — | |
| Suburban Propane Partners LP no website on recordSPH · Retail-Miscellaneous Retail (SIC 5900); no web address found | — | No | — | |
| Columbus McKinnon Corp no website on recordCMCO · Construction Machinery & Equip (SIC 3531); no web address found | — | No | — | |
| Universal Display Corp \PA\ udcoled.comOLED · Electronic Components & Accessories (SIC 3670); web address from Wikidata (P856), not EDGAR | 31 | Gated | 1 | |
| Lifecore Biomedical, Inc. \DE\ no website on recordLFCR · Pharmaceutical Preparations (SIC 2834); no web address found | — | No | — | |
| Bos Better Online Solutions Ltd no website on recordBOSC · Computer Communications Equipment (SIC 3576); no web address found | — | No | — | |
| Idt Corp idtenergy.comIDT · Telephone Communications (No Radiotelephone) (SIC 4813); web address from Wikidata (P856), not EDGAR | 54 | No | 32 | |
| Tompkins Financial Corp no website on recordTMP · State Commercial Banks (SIC 6022); no web address found | — | No | — | |
| Iridex Corp no website on recordIRIX · Electromedical & Electrotherapeutic Apparatus (SIC 3845); no web address found | — | No | — | |
| Protalix BioTherapeutics, Inc. no website on recordPLX · Biological Products, (No Diagnostic Substances) (SIC 2836); no web address found | — | No | — | |
| Evolution Petroleum Corp no website on recordEPM · Crude Petroleum & Natural Gas (SIC 1311); no web address found | — | No | — | |
| INNOVATE Corp. primustel.comblockedVATE · Fabricated Structural Metal Products (SIC 3440); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 | — | No | — | |
| Coffee Holding Co Inc no website on recordJVA · Miscellaneous Food Preparations & Kindred Products (SIC 2090); no web address found | — | No | — | |
| Kvh Industries Inc \DE\ no website on recordKVHI · Communications Services, NEC (SIC 4899); no web address found | — | No | — | |
| Cameco Corp cameco.comCCJ · Miscellaneous Metal Ores (SIC 1090); web address from Wikidata (P856), not EDGAR | 60 | No | 31 | |
| Capstone Energy Plus, Inc. no website on recordCEPL · Engines & Turbines (SIC 3510); no web address found | — | No | — | |
| Jakks Pacific Inc jakks.comblockedJAKK · Games, Toys & Children's Vehicles (No Dolls & Bicycles) (SIC 3944); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 (Cloudflare) | — | No | — | |
| Air Industries Group no website on recordAIRI · Aircraft Parts & Auxiliary Equipment, NEC (SIC 3728); no web address found | — | No | — | |
| Siga Technologies Inc no website on recordSIGA · Pharmaceutical Preparations (SIC 2834); no web address found | — | No | — | |
| Provident Financial Holdings Inc no website on recordPROV · Savings Institution, Federally Chartered (SIC 6035); no web address found | — | No | — | |
| Rush Enterprises Inc \TX\ rushenterprises.comRUSHA, RUSHB · Retail-Auto Dealers & Gasoline Stations (SIC 5500); web address from Wikidata (P856), not EDGAR | 50 | No | 19 | |
| Buenaventura Mining Co Inc buenaventura.comBVN · Metal Mining (SIC 1000); web address from Wikidata (P856), not EDGAR | 64 | No | 32 | |
| Factset Research Systems Inc factset.comFDS · Services-Computer Programming, Data Processing, Etc. (SIC 7370); S&P 500 · Financials; web address found by crawling for the S&P 500 list, not carried by EDGAR | 51 | No | 32 | |
| Norwood Financial Corp no website on recordNWFL · State Commercial Banks (SIC 6022); no web address found | — | No | — | |
| BJs RESTAURANTS INC bjsrestaurants.comBJRI · Retail-Eating Places (SIC 5812); web address from Wikidata (P856), not EDGAR | 63 | No | 1 | |
| PRECISION DRILLING Corp precisiondrilling.comPDS · Drilling Oil & Gas Wells (SIC 1381); web address from Wikidata (P856), not EDGAR | 49 | Gated | 32 | |
| Pegasystems Inc pega.comblockedPEGA · Services-Computer Processing & Data Preparation (SIC 7374); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 | — | No | — | |
| Nrg Energy, Inc. nrg.comblockedNRG · Electric Services (SIC 4911); S&P 500 · Utilities; web address found by crawling for the S&P 500 list, not carried by EDGAR; not measured: challenge page (Imperva) | — | No | — | |
| TTEC Holdings, Inc. ttec.comblockedTTEC · Services-Help Supply Services (SIC 7363); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 (Cloudflare) | — | No | — | |
| Strategic Education, Inc. no website on recordSTRA · Services-Educational Services (SIC 8200); no web address found | — | No | — | |
| Verisign Inc/Ca verisign.comVRSN · Services-Computer Programming Services (SIC 7371); S&P 500 · Information Technology; web address found by crawling for the S&P 500 list, not carried by EDGAR | 53 | No | 32 | |
| Option Care Health, Inc. no website on recordOPCH · Services-Home Health Care Services (SIC 8082); no web address found | — | No | — | |
| Ainos, Inc. no website on recordAIMD, AIMDW · Computer Peripheral Equipment, NEC (SIC 3577); no web address found | — | 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