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.

Index 12.0 · scanned 2026-10-11 · up to 32 URLs per site · 5239 organizations · 1745 scanned (33.3% coverage) · 3029 with no published URL

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)
LicenseSEC 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 itEvery 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 ofThe 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.
Built2026-10-11

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

GradeShare of the cohort SitesShare
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.

DimensionMean 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 2 checks
TestWhat it asks FailingOf Points
EXT-17 Do you list your agents in your domain's DNS records?
100.0%
1625 0
EXT-7 If you run real question-and-answer pages, are they marked as such?
100.0%
43 0
Near-universal — 95% and above 11 checks · 2 of them worth 2 points or more
TestWhat it asks FailingOf Points
EXT-12 Do you tell search engines the moment a page changes?
99.9%
1745 0
EXT-16 Do you publish a card or a skills list for the agents you run?
99.8%
1745 0
EXT-11 Have you marked the part of a page that answers a spoken question?
99.7%
1745 0
PST-2 Have you posted a Content Signals statement about what AI may do with your content?
99.1%
1745 0
EXT-2 Do you list your APIs and agent tools where agents look for them?
98.8%
259 0
RED-10 Do you offer a plain-text (Markdown) copy of your pages?
98.5%
1272 2
EXT-14 Does your site offer its actions to AI browsers as tools?
98.4%
1603 0
RED-12 If a machine asks for Markdown, does your site give it?
97.9%
1745 2
EXT-18 Do you tell AI shoppers how they can pay?
96.8%
188 0
RED-5 Do your PDFs and images have their own rules for search and quoting?
96.1%
1147 1
EXT-15 Can an AI agent find out how to sign in to your site?
95.2%
21 0
Common — 90 to 95% 3 checks · 1 of them worth 2 points or more
TestWhat it asks FailingOf Points
UND-5 Does the author label in your page code point to that person?
94.3%
1238 1
UND-1 Does your site say clearly who you are?
91.5%
1745 2
EXT-1 Do you publish an llms.txt file for coding assistants?
90.0%
1745 0

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 101–200 of 5,239 · page 2 of 53

SiteScore GatedPages read Report
Crown Crafts Inc no website on recordCRWS · Broadwoven Fabric Mills, Cotton (SIC 2211); no web address found — No —
Cts Corp no website on recordCTS · Printed Circuit Boards (SIC 3672); no web address found — No —
Cummins Inc cummins.comCMI · Engines & Turbines (SIC 3510); S&P 500 · Industrials; web address found by crawling for the S&P 500 list, not carried by EDGAR 33 Gated 1
Curtiss Wright Corp curtisswright.comCW · Misc Industrial & Commercial Machinery & Equipment (SIC 3590); web address from Wikidata (P856), not EDGAR 61 No 32
DANA Inc dana.comDAN · Motor Vehicle Parts & Accessories (SIC 3714); web address from Wikidata (P856), not EDGAR 59 No 32
U.s. Gold Corp. no website on recordUSAU · Metal Mining (SIC 1000); no web address found — No —
Target Corp target.comTGT · Retail-Variety Stores (SIC 5331); S&P 500 · Consumer Staples; web address found by crawling for the S&P 500 list, not carried by EDGAR 46 Gated 32
Delta Air Lines, Inc. delta.comDAL · Air Transportation, Scheduled (SIC 4512); S&P 500 · Industrials; web address found by crawling for the S&P 500 list, not carried by EDGAR 35 Gated 1
Deluxe Corp deluxe.comDLX · Blankbooks, Looseleaf Binders & Bookbindg & Relatd Work (SIC 2780); web address from Wikidata (P856), not EDGAR 33 Gated 1
DIEBOLD NIXDORF, Inc dieboldnixdorf.comDBD · Calculating & Accounting Machines (No Electronic Computers) (SIC 3578); web address from Wikidata (P856), not EDGAR 39 Gated 32
Dillard's, Inc. dillards.comDDS, DDT · Retail-Department Stores (SIC 5311); web address from Wikidata (P856), not EDGAR 45 Gated 32
Diodes Inc /Del/ diodes.comblockedDIOD · Semiconductors & Related Devices (SIC 3674); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 (Cloudflare) — No —
Dollar General Corp dollargeneral.comDG · Retail-Variety Stores (SIC 5331); S&P 500 · Consumer Staples; web address found by crawling for the S&P 500 list, not carried by EDGAR 61 No 32
DONALDSON Co INC donaldson.comDCI · Industrial & Commercial Fans & Blowers & Air Purifing Equip (SIC 3564); web address from Wikidata (P856), not EDGAR 48 No 1
DOVER Corp dovercorporation.comblockedDOV · Construction, Mining & Materials Handling Machinery & Equip (SIC 3530); S&P 500 · Industrials; web address found by crawling for the S&P 500 list, not carried by EDGAR; not measured: HTTP 403 (Akamai) — No —
Omnicom Group Inc. omnicomgroup.comOMC · Services-Advertising Agencies (SIC 7311); S&P 500 · Communication Services; web address found by crawling for the S&P 500 list, not carried by EDGAR 74 No 1
Ducommun Inc /DE/ ducommun.comDCO · Aircraft Parts & Auxiliary Equipment, NEC (SIC 3728); web address from Wikidata (P856), not EDGAR 40 Gated 32
EIDP, Inc. no website on recordCTA-PB, CTA-PA · Plastic Material, Synth Resin/Rubber, Cellulos (No Glass) (SIC 2820); no web address found — No —
Flowserve Corp flowserve.comFLS · Pumps & Pumping Equipment (SIC 3561); web address from Wikidata (P856), not EDGAR 51 No 32
Wendy's Co wendys.comWEN · Retail-Eating & Drinking Places (SIC 5810); web address from Wikidata (P856), not EDGAR 61 No 32
Eastern Co no website on recordEML · Cutlery, Handtools & General Hardware (SIC 3420); no web address found — No —
Eastman Kodak Co kodak.comKODK · Photographic Equipment & Supplies (SIC 3861); web address from Wikidata (P856), not EDGAR 51 Gated 32
Ecolab Inc. ecolab.comECL · Soap, Detergents, Cleang Preparations, Perfumes, Cosmetics (SIC 2840); S&P 500 · Materials; web address found by crawling for the S&P 500 list, not carried by EDGAR 53 No 32
Educational Development Corp no website on recordEDUC · Wholesale-Miscellaneous Nondurable Goods (SIC 5190); no web address found — No —
Revvity, Inc. revvity.comblockedRVTY · 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; not measured: HTTP 403 — No —
Emerson Electric Co emerson.comblockedEMR · Electronic & Other Electrical Equipment (No Computer Equip) (SIC 3600); S&P 500 · Industrials; web address found by crawling for the S&P 500 list, not carried by EDGAR; not measured: HTTP 403 (Cloudflare) — No —
Emerson Radio Corp no website on recordMSN · Household Audio & Video Equipment (SIC 3651); no web address found — No —
Ennis, Inc. no website on recordEBF · Manifold Business Forms (SIC 2761); no web address found — No —
Equifax Inc equifax.comEFX · Services-Consumer Credit Reporting, Collection Agencies (SIC 7320); S&P 500 · Industrials; web address found by crawling for the S&P 500 list, not carried by EDGAR 57 Gated 32
EQT Corp eqt.comEQT · Crude Petroleum & Natural Gas (SIC 1311); S&P 500 · Energy; web address found by crawling for the S&P 500 list, not carried by EDGAR 47 No 32
Escalade Inc no website on recordESCA · Sporting & Athletic Goods, NEC (SIC 3949); no web address found — No —
Espey Mfg & Electronics Corp no website on recordESP · Electronic Components, NEC (SIC 3679); no web address found — No —
Kingstone Companies, Inc. kingstonecompanies.comblockedKINS · Fire, Marine & Casualty Insurance (SIC 6331); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 — No —
DMC Global Inc. dmcglobal.comBOOM · Miscellaneous Primary Metal Products (SIC 3390); web address from Wikidata (P856), not EDGAR 50 No 16
1St Source Corp no website on recordSRCE · State Commercial Banks (SIC 6022); no web address found — No —
Federal Realty Investment Trust federalrealty.comFRT, FRT-PC · 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 48 Gated 31
Tenax Therapeutics, Inc. no website on recordTENX · Pharmaceutical Preparations (SIC 2834); no web address found — No —
Fifth Third Bancorp 53.comFITB, FITB-PA, FITB-PI · State Commercial Banks (SIC 6022); S&P 500 · Financials; web address found by crawling for the S&P 500 list, not carried by EDGAR 67 No 3
First Financial Bankshares Inc ffin.comblockedFFIN · State Commercial Banks (SIC 6022); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 (Cloudflare) — No —
US Bancorp \DE\ usbank.comUSB, USB-PA, USB-PH · National Commercial Banks (SIC 6021); S&P 500 · Financials; web address found by crawling for the S&P 500 list, not carried by EDGAR 68 No 32
Trustmark Corp no website on recordTRMK · National Commercial Banks (SIC 6021); no web address found — No —
M&t Bank Corp mtb.comMTB, MTB-PH, MTB-PJ · State Commercial Banks (SIC 6022); S&P 500 · Financials; web address found by crawling for the S&P 500 list, not carried by EDGAR 54 Gated 32
First Hawaiian, Inc. fhb.comFHB · State Commercial Banks (SIC 6022); web address from Wikidata (P856), not EDGAR 64 No 32
First Horizon Corp fhnc.comFHN, FHN-PE, FHN-PF · National Commercial Banks (SIC 6021); web address from Wikidata (P856), not EDGAR 33 Gated 1
Flexsteel Industries Inc no website on recordFLXS · Household Furniture (SIC 2510); no web address found — No —
Fmc Corp fmc.comFMC · Chemicals & Allied Products (SIC 2800); web address from Wikidata (P856), not EDGAR 41 Gated 32
Fnb Corp/PA/ no website on recordFNB · National Commercial Banks (SIC 6021); no web address found — No —
Ford Motor Co ford.comF, F-PB, F-PC · Motor Vehicles & Passenger Car Bodies (SIC 3711); S&P 500 · Consumer Discretionary; web address found by crawling for the S&P 500 list, not carried by EDGAR 49 Gated 32
Forward Industries, Inc. no website on recordFWDI · Finance Services (SIC 6199); no web address found — No —
Franklin Electric Co Inc no website on recordFELE · Motors & Generators (SIC 3621); no web address found — No —
Franklin Templeton Inc franklintempleton.comBEN · Investment Advice (SIC 6282); S&P 500 · Financials; web address found by crawling for the S&P 500 list, not carried by EDGAR 36 No 32
Frequency Electronics Inc no website on recordFEIM · Instruments For Meas & Testing of Electricity & Elec Signals (SIC 3825); no web address found — No —
Friedman Industries Inc no website on recordFRD · Steel Works, Blast Furnaces & Rolling & Finishing Mills (SIC 3310); no web address found — No —
Cullen/Frost Bankers, Inc. frostbank.comCFR, CFR-PB · National Commercial Banks (SIC 6021); web address from Wikidata (P856), not EDGAR 57 No 32
Independent Bank Corp /Mi/ independentbank.comIBCP · State Commercial Banks (SIC 6022); web address from Wikidata (P856), not EDGAR 51 No 32
Fuller H B Co hbfuller.comFUL · Adhesives & Sealants (SIC 2891); web address from Wikidata (P856), not EDGAR 53 Gated 30
Gap Inc gapinc.comGAP · Retail-Family Clothing Stores (SIC 5651); web address from Wikidata (P856), not EDGAR 62 No 32
Gatx Corp gatx.comGATX · Transportation Services (SIC 4700); web address from Wikidata (P856), not EDGAR 51 No 32
General Dynamics Corp gd.comblockedGD · Ship & Boat Building & Repairing (SIC 3730); S&P 500 · Industrials; web address found by crawling for the S&P 500 list, not carried by EDGAR; not measured: HTTP 403 — No —
General Electric Co geaerospace.comGE · Electronic & Other Electrical Equipment (No Computer Equip) (SIC 3600); S&P 500 · Industrials; web address found by crawling for the S&P 500 list, not carried by EDGAR 60 No 32
GEE Group Inc. no website on recordJOB · Services-Employment Agencies (SIC 7361); no web address found — No —
General Mills Inc generalmills.comGIS · Grain Mill Products (SIC 2040); S&P 500 · Consumer Staples; web address found by crawling for the S&P 500 list, not carried by EDGAR 50 No 30
Ally Financial Inc. ally.comALLY · State Commercial Banks (SIC 6022); web address from Wikidata (P856), not EDGAR 33 Gated 1
Genuine Parts Co genpt.comGPC · Wholesale-Motor Vehicle Supplies & New Parts (SIC 5013); S&P 500 · Consumer Discretionary; web address found by crawling for the S&P 500 list, not carried by EDGAR 35 Gated 1
Georgia Power Co no website on recordGPJA · Electric Services (SIC 4911); no web address found — No —
Magnera Corp glatfelter.comMAGN · Paper Mills (SIC 2621); web address from Wikidata (P856), not EDGAR 50 Gated 1
Goodyear Tire & Rubber Co /Oh/ goodyear.comGT · Tires & Inner Tubes (SIC 3011); web address from Wikidata (P856), not EDGAR 53 No 32
Gorman Rupp Co gormanrupp.comGRC · Pumps & Pumping Equipment (SIC 3561); web address from Wikidata (P856), not EDGAR 59 Gated 32
Graco Inc graco.comGGG · Pumps & Pumping Equipment (SIC 3561); web address from Wikidata (P856), not EDGAR 57 No 32
Gray Media, Inc gray.tvGTN, GTN-A · Television Broadcasting Stations (SIC 4833); web address from Wikidata (P856), not EDGAR 45 Gated 1
Greif, Inc greif.comGEF, GEF-B · Metal Shipping Barrels, Drums, Kegs & Pails (SIC 3412); web address from Wikidata (P856), not EDGAR 52 Gated 32
Halliburton Co halliburton.comHAL · Oil & Gas Field Services, NEC (SIC 1389); S&P 500 · Energy; web address found by crawling for the S&P 500 list, not carried by EDGAR 68 No 32
Harte Hanks Inc hartehanks.comHHS · Services-Direct Mail Advertising Services (SIC 7331); web address from Wikidata (P856), not EDGAR 63 No 32
Hasbro, Inc. shop.hasbro.comHAS · Games, Toys & Children's Vehicles (No Dolls & Bicycles) (SIC 3944); S&P 500 · Consumer Discretionary; 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 62 No 1
Allient Inc no website on recordALNT · Instruments For Meas & Testing of Electricity & Elec Signals (SIC 3825); no web address found — No —
Bank of Hawaii Corp boh.comBOH, BOH-PA, BOH-PB · State Commercial Banks (SIC 6022); web address from Wikidata (P856), not EDGAR 57 Gated 32
Hawkins Inc no website on recordHWKN · Wholesale-Chemicals & Allied Products (SIC 5160); no web address found — No —
Heico Corp heico.comHEI, HEI-A · Aircraft Engines & Engine Parts (SIC 3724); web address from Wikidata (P856), not EDGAR 29 Gated 32
Helmerich & Payne, Inc. hpinc.comHP · Drilling Oil & Gas Wells (SIC 1381); web address from Wikidata (P856), not EDGAR 56 No 32
Hershey Co thehersheycompany.comHSY · Sugar & Confectionery Products (SIC 2060); S&P 500 · Consumer Staples; web address found by crawling for the S&P 500 list, not carried by EDGAR 54 Gated 32
Hp Inc hp.comHPQ · Computer & office Equipment (SIC 3570); S&P 500 · Information Technology; web address found by crawling for the S&P 500 list, not carried by EDGAR 49 Gated 32
Hni Corp hnicorp.comHNI · Office Furniture (No Wood) (SIC 2522); web address from Wikidata (P856), not EDGAR 49 No 1
Hormel Foods Corp /DE/ hormel.comHRL · Meat Packing Plants (SIC 2011); S&P 500 · Consumer Staples; web address found by crawling for the S&P 500 list, not carried by EDGAR 46 Gated 32
Hubbell Inc hubbell.comblockedHUBB · Electronic Components & Accessories (SIC 3670); S&P 500 · Industrials; web address found by crawling for the S&P 500 list, not carried by EDGAR; not measured: HTTP 403 (CloudFront) — No —
Humana Inc humana.comHUM · 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 33 Gated 1
Huntington Bancshares Inc /MD/ huntington.comblockedHBAN, HBANL, HBANM · National Commercial Banks (SIC 6021); 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 —
Eastgroup Properties Inc no website on recordEGP · Real Estate Investment Trusts (SIC 6798); no web address found — No —
Dine Brands Global, Inc. dinebrands.comblockedDIN · Retail-Eating Places (SIC 5812); web address from Wikidata (P856), not EDGAR; not measured: HTTP 403 (Cloudflare) — No —
Illinois Tool Works Inc itw.comITW · General Industrial Machinery & Equipment (SIC 3560); S&P 500 · Industrials; web address found by crawling for the S&P 500 list, not carried by EDGAR 56 No 32
Imperial Oil Ltd no website on recordIMO · Petroleum Refining (SIC 2911); no web address found — No —
ReposiTrak, Inc. no website on recordTRAK · Services-Computer Processing & Data Preparation (SIC 7374); no web address found — No —
Ingles Markets Inc ingles-markets.comIMKTA · Retail-Grocery Stores (SIC 5411); web address from Wikidata (P856), not EDGAR 56 No 32
Griffon Corp griffon.comGFF · Metal Doors, Sash, Frames, Moldings & Trim (SIC 3442); web address from Wikidata (P856), not EDGAR 53 No 32
Intel Corp intel.comINTC · Semiconductors & Related Devices (SIC 3674); S&P 500 · Information Technology; web address found by crawling for the S&P 500 list, not carried by EDGAR 50 Gated 32
International Business Machines Corp ibm.comIBM · Computer & office Equipment (SIC 3570); S&P 500 · Information Technology; web address found by crawling for the S&P 500 list, not carried by EDGAR 49 Gated 1
International Flavors & Fragrances Inc iff.comblockedIFF · Industrial Organic Chemicals (SIC 2860); S&P 500 · Materials; web address found by crawling for the S&P 500 list, not carried by EDGAR; not measured: HTTP 403 (Cloudflare) — No —
International Paper Co /New/ internationalpaper.comIP · Paper Mills (SIC 2621); S&P 500 · Materials; web address found by crawling for the S&P 500 list, not carried by EDGAR 70 No 32
Rayonier Inc rayonier.comRYN · Real Estate Investment Trusts (SIC 6798); web address from Wikidata (P856), not EDGAR 41 No 11
Jacobs Solutions Inc. jacobs.comJ · Heavy Construction Other Than Bldg Const - Contractors (SIC 1600); S&P 500 · Industrials; web address found by crawling for the S&P 500 list, not carried by EDGAR 56 Gated 32
Mays J W Inc no website on recordMAYS · Opeators of Nonresidential Buildings (SIC 6512); 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