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Bootstrap

Bootstrap in each crawled group, and in the wider sample. UI Framework.

GroupCrawledRunning BootstrapShare
Inc 5000 (2026) 4,886 587 12.0%
Y Combinator companies 5,386 201 3.7%
Fortune 500 472 72 15.3%
Unicorns 1,000 98 9.8%
SaaS companies 8,173 654 8.0%
Tranco top 10,000 1,572 120 7.6%
Wider sample 8,291 240 2.9%

Group rows come from rendered homepage crawls; the wider sample is a plain fetch, so it undercounts tools a tag manager injects after the page loads. <5 means fewer than 5 crawled domains in that group. Method · UI Framework across all groups · Bootstrap CSS or JS bundle, loaded from a CDN or a build with the name intact.

Detected by: script bootstrap.min.js script cdn.jsdelivr.net/npm/bootstrap@

Wider sample

Bootstrap was detected on 240 of 8,291 company websites drawn from Crunchbase company records, companies with 11 to 1,000 employees. The cuts below divide by each segment's own crawled base.

By industry

IndustryCrawledRunning BootstrapShare
Artificial Intelligence (AI) 1,631 33 2.0%
Financial Services 548 22 4.0%
Biotechnology 521 16 3.1%
Information Technology 503 13 2.6%
Health Care 420 15 3.6%
Apps 395 10 2.5%
Data and Analytics 373 7 1.9%
Commerce and Shopping 347 15 4.3%
Administrative Services 344 9 2.6%
Energy 294 6 2.0%

By employee size band

Size bandCrawledRunning BootstrapShare
11-50 6,249 171 2.7%
51-200 2,042 69 3.4%

By country

CountryCrawledRunning BootstrapShare
United States 5,475 151 2.8%
United Kingdom 803 21 2.6%
Canada 480 16 3.3%
Germany 430 15 3.5%
France 422 18 4.3%
Australia 212 8 3.8%
Netherlands 146 3 2.1%
Sweden 84 4 4.8%
Denmark 75 0 0.0%
Finland 68 3 4.4%

Cite this

Installmap, Bootstrap adoption, crawl of 2026-09-03, https://installmap.com/tools/bootstrap.

Canonical URL
https://installmap.com/tools/bootstrap
Denominator
240 of 8,291 crawled company websites in the wider sample, a share of 2.9%

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