Internet Information Services (IIS) is an extensible web server software created by Microsoft for use with the Windows NT family.
Get all 52,007 companies using IIS
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Companies
52,007
Top Country
US
Top Industry
Consulting
Adoption Insights
IIS is used by 52,007 companies in our database, representing approximately 1.76% of all tracked websites. The most common industry using IIS is Consulting, and adoption is strongest in US.
Top Countries Using IIS
Top Industries Using IIS
Companies Using IIS
| Company | Domain | Country | Industry | Employees |
|---|---|---|---|---|
 Advent International | adventinternational.com | US | Finance | 501-1000 |
 Acronis | acronis.com | CH | Artificial Intelligence (AI) | 1001-5000 |
 Meditech | meditech.com | US | Health Care | 1001-5000 |
 Dayforce | dayforce.com | CA | Enterprise Software | 5001-10000 |
 Permira | permira.com | GB | Business Development | 501-1000 |
 Novo Nordisk | novonordisk.com | DE | Biotechnology | 10001+ |
 Paycor | paycor.com | US | Bookkeeping and Payroll | 1001-5000 |
 Klöckner Pentaplast | kpfilms.com | GB | Manufacturing | 5001-10000 |
 Amplitech Group | amplitechgroup.com | US | Manufacturing | 11-50 |
 XPRIZE | xprize.org | US | Education | 51-100 |
Top Alternatives to IIS
Other Web servers technologies sorted by adoption
How We Detect IIS
The Web Radar detects IIS 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 IIS?+
Internet Information Services (IIS) is an extensible web server software created by Microsoft for use with the Windows NT family.
How many companies use IIS?+
52,007 companies in our database use IIS, representing approximately 1.76% of all tracked websites.
What industries use IIS the most?+
The top industries using IIS are Consulting, Health Care, Industrial.
What countries use IIS the most?+
The top countries using IIS are US, GB, TR.
Is IIS popular?+
IIS is used by 52,007 companies, making it one of the most widely adopted Web servers technology based on adoption across our tracked websites.
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Browse DatasetsData last updated: July 2026