Polyfill is a service which accepts a request for a set of browser features and returns only the polyfills that are needed by the requesting browser.
Get all 2,164 companies using Polyfill
CSV with domain, country, industry, employees, funding, socials. Delivered by email.
Companies
2,164
Top Country
US
Top Industry
Consulting
Adoption Insights
Polyfill is used by 2,164 companies in our database, representing approximately 0.07% of all tracked websites. The most common industry using Polyfill is Consulting, and adoption is strongest in US.
Top Countries Using Polyfill
Top Industries Using Polyfill
Companies Using Polyfill
| Company | Domain | Country | Industry | Employees |
|---|---|---|---|---|
 Medable | medable.com | US | Clinical Trials | 501-1000 |
 International Battery Metals | ibatterymetals.com | CA | Battery | 11-50 |
 EdgeQ | edgeq.io | US | AI Infrastructure | 101-250 |
 Knack | joinknack.com | US | Consumer | 11-50 |
 Landit | landit.com | US | Career Planning | 1-10 |
 Deepnote | deepnote.com | US | Analytics | 11-50 |
 Campsider | campsider.com | FR | E-Commerce | 11-50 |
 Spiff | spiff.com | US | Financial Services | 101-250 |
 8base | 8base.com | US | Developer Tools | 11-50 |
 Accelmed | accelmed.com | US | Biotechnology | 11-50 |
Top Alternatives to Polyfill
Other JavaScript libraries technologies sorted by adoption
How We Detect Polyfill
The Web Radar detects Polyfill by analyzing HTTP headers, JavaScript variables, HTML source code, cookies, and DNS records across 3M+ websites. Our detection engine uses over 10,000+ pattern rules to ensure accurate identification. Browse all technologies →
Frequently Asked Questions
What is Polyfill?+
Polyfill is a service which accepts a request for a set of browser features and returns only the polyfills that are needed by the requesting browser.
How many companies use Polyfill?+
2,164 companies in our database use Polyfill, representing approximately 0.07% of all tracked websites.
What industries use Polyfill the most?+
The top industries using Polyfill are Consulting, Advertising, Health Care.
What countries use Polyfill the most?+
The top countries using Polyfill are US, GB, JP.
Is Polyfill popular?+
Polyfill is used by 2,164 companies, making it one of the most widely adopted JavaScript libraries technology based on adoption across our tracked websites.
Need this data at scale?
Get ready-to-use datasets: companies, technologies, and tech adoption signals across 3M+ websites.
Browse DatasetsData last updated: June 2026