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Companies that use Fathom

259 companies use Fathom, as of October 2026.

Fathom: Privacy-friendly analytics. We've found 259 companies using Fathom, most often in Software (12%) and IT Services (12%), typically with 1–10 employees and 37% based in United States.

Customers259companies use it
Most popular withBiotechnology8.0× more likely than average
Typical customer1–10employees · mostly United States
  1. Atradiusatradius.beInsurance · Belgium
    1,001–5,000 employeesSeen Oct 2026
  2. G2V Optics Inc.g2voptics.comElectrical/electronic Manufacturing · Canada
    11–50 employeesSeen Oct 2026
  3. Isolvedisolvedhcm.comSoftware · United States
    1,001–5,000 employeesSeen Oct 2026
  4. Schnellecke Logistics USAisolvedhire.comLogistics and Supply Chain · United States
    1,001–5,000 employeesSeen Oct 2026
  5. Seen Oct 2026
  6. AUSTRIACARDaustriacard.atIT Services · Austria
    1,001–5,000 employeesSeen Oct 2026
  7. Leblancconn-selmer.comMusical Instrument Making · United States
    Seen Oct 2026
  8. Conn-Selmerconnselmer.comMusical Instrument Manufacturing Company · United States
    Seen Oct 2026
  9. CUJO AIcujo.comTechnology · United States
    201–1,000 employeesSeen Oct 2026
  10. Intellia Therapeuticsintelliatx.comBiotechnology · United States
    201–1,000 employeesSeen Oct 2026
  11. Istaristarsoft.comSoftware · United States
    1–10 employeesSeen Oct 2026
  12. ITWitw.comIndustrial Manufacturing · United States
    10,000+ employeesSeen Oct 2026
  13. 5,001–10,000 employeesSeen Oct 2026
  14. 201–1,000 employeesSeen Oct 2026
  15. 1,001–5,000 employeesSeen Oct 2026
  16. Seen Oct 2026
  17. Librettolibretto.shInternet · United States
    1–10 employeesSeen Oct 2026
  18. Mossletmosslet.comSoftware · United States
    1–10 employeesSeen Oct 2026
  19. Seen Oct 2026

Showing 40 of 278

Fathom customers also use

How much more likely Fathom customers are to use each tool than the average company.

What kind of companies use Fathom

Segments where Fathom customers are more common than among all the companies we track.

  • Biotechnology3% of customers8.0×more likely
  • 10,000+ employees9% of customers4.5×more likely
  • 1–10 employees24% of customers4.4×more likely
  • 5,001–10,000 employees5% of customers3.5×more likely
  • 1,001–5,000 employees16% of customers2.5×more likely

Industry

  1. Software12%
  2. IT Services12%
  3. Healthcare9%
  4. Internet7%
  5. Biotechnology5%
  6. Electronics4%
  7. Insurance4%
  8. Automotive3%

Company size

  1. 1–10 employees24%
  2. 11–50 employees22%
  3. 51–200 employees19%
  4. 201–1,000 employees5%
  5. 1,001–5,000 employees16%
  6. 5,001–10,000 employees5%
  7. 10,000+ employees9%

Country

  1. United States37%
  2. United Kingdom15%
  3. Norway10%
  4. Germany8%
  5. Canada3%
  6. France3%
  7. Austria2%
  8. Netherlands2%

Breakdowns cover the 258 customers with company details so far.

Alternatives to Fathom

Other tools in the same category, by how many companies use them.

Fathom FAQ

How many companies use Fathom?

We've found 259 companies using Fathom among the 187,881 we've scanned so far. We only count a company when a direct public record backs it up.

What kind of companies use Fathom?

Fathom customers are most often in Software (12%), IT Services (12%) and Healthcare (9%). The most common company size is 1–10 employees (24% of customers with a known size).

Which countries use Fathom the most?

Most Fathom customers we've found are in United States (37%), United Kingdom (15%) and Norway (10%).

What are the alternatives to Fathom?

The most used alternatives in the same category are Google Analytics (84,973 companies), Google Tag Manager (51,325 companies), Microsoft Clarity (14,584 companies) and Hotjar (7,668 companies).

How does runsonwhat know a company uses Fathom?

We read public traces only. For Fathom that means code loaded on the company's website, including tag managers and the company's published subprocessor list. Every match keeps the record it came from.