Technology answer

WebAssembly

540

companies run it, <0.01% of 54,527,857 in the index. Landing 12 Sept 2026.

Hosts: 2,266 live hosts run it, of 191,809,695 hosts in the index, <0.01%. A host is a website, not a company. This is a web standard: it is present on the host and does not count towards a stack.

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Companies by month

No published series

540 companies is under the publication floor of 1,000, and the fixed panel anchored at 31 Dec 2020 carries 190 of them. A monthly line drawn off that many observations would be noise at the same weight as a line off millions, so this page states the count and its date and publishes no series.

First discovered 6 Oct 2023, last discovered 10 Sept 2026.

Both denominators, and a third

Shares of the same 540each row a different wholelanding 12 Sept 2026

Denominator

Companies

Share

companies in the index

54,527,857

<0.01%

companies running anything in Web Standards and Capabilities

51,014,812

<0.01%

companies running anything in Web application and scripting standards

49,182,258

<0.01%

Three wholes, three shares of one count: a share travels with its whole, never alone. Against the last of them, WebAssembly is rank 9 of 10 technologies in Web application and scripting standards.

Open as a segment

540 companies; add a country, a sector or a band on the segment page. Counting is free.

/companies/tech-webassembly

Open the segment

Catalogue record

As recorded in the cataloguetaxonomy release tax-2026.10last discovered 10 Sept 2026

A binary instruction format and web standard for running code at near‑native speed in browsers and elsewhere.

WebAssembly defines a portable, low-level binary format and runtime for executing code compiled from languages like C, C++, and Rust. It is standardized by the WebAssembly Community Group and used by browsers and other runtimes to run performant modules.

Kindstandard

VendorWebAssembly Community Group, webassembly.org

PathWeb Engineering > Web Standards and Capabilities > Web application and scripting standards

Slugwebassembly

Deploymentself-hosted

Pricingfree

Open sourceyes

First discovered2023-10-06

Last discovered2026-09-10

Taxonomy releasetax-2026.10

One click under this answer

Subcategory answerWeb application and scripting standardsCompanies running anything in Web application and scripting standards, 49,182,258 of 54,527,857 in the index, and the technologies ranked in it.Category answerWeb Standards and CapabilitiesThe category above this one, with its subcategories and the companies in each.CatalogueAll 8,177 technologiesRanked by the companies running them, with the publication gate named and the long tail drawn.