How many companies use IIS vs Phusion Passenger?

4,296 companies use IIS and 280 companies use Phusion Passenger in our database. IIS is more widely adopted with 15.3x more companies than Phusion Passenger.

Can I get a list of companies using both IIS and Phusion Passenger?

Yes. AgentData tracks companies using both tools. Subscribe to access the full list with emails, tech stacks, and contacts via CSV or API.

IIS vs Phusion Passenger

IIS is used by 4,296companies — 15.3x more than Phusion Passenger (280).

4,296 use IIS280 use Phusion Passenger

Side-by-side comparison

	IIS	Phusion Passenger
Companies	4,296	280
Category	Web servers	Web servers

Company adoption

Top companies using IIS

UNESCO2030unesco2030.imageshop.no

Homehome.starkeypro.com

OMSoms.cjgmd.vn

Alpha Capitalims.alphacapitalnepal.com

PNYproconfig.pny.com

Top companies using Phusion Passenger

RubyConf Taiwan 20152015.rubyconf.tw

Librarylibrary.ualberta.ca

CNOSFcnosf.franceolympique.com

Recueil de signalementssignalements-opcomobilites.vispato.com

Kitten Rescuekittenrescue.networkforgood.com

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4,576 companies with emails, tech stacks, and contacts

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API access

GET /api/v1/tech?name=iis

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