We are Cesanta Software Ltd,
a company headquartered in Dublin,
Republic of Ireland

Dublin city header

Our story roots back to 2004, when Mongoose Web Server Library development started. As Mongoose Web Server grew in popularity and matured over the following years, in 2013 Cesanta was established to continue its development and provide support to our valued customers.

We are proud to have among our customers many Fortune 500 companies as well as medium and small size businesses. Security and quality of our solutions is a paramount for us and the fact that Mongoose Web Server is used by NASA aboard the International Space Station is the best confirmation to it.

Our solutions are:

Integrated into thousands of commercial products

integrated commercial products

Deployed to hundreds of millions devices in production environment

integrated commercial products

Our range of products

Since 2013, Cesanta has expanded its product portfolio. We develop and distribute embedded software and hardware with focus on connected products and the Internet of Things

Mongoose Networking Library

embedded networking core

Mongoose OS

a framework for IoT firmware development


a platform for remote device firmware updates


a device management IoT Cloud

Our customers

We have sold to hundreds of companies, ranging from small enterprises to Fortune 500 giants:

Bosch logo
Dell logo
Epson logo
Faro logo
Google logo
HP logo
Humax logo
Idex logo
Intel logo
Ingenico logo
Kapsch logo
Lennox logo
Microscan logo
Nintendo logo
NovAtel logo
Pilz logo
Progress Rail logo
Qualcomm logo
Redflex logo
Samsung logo
SKY logo
Swarco logo
Thyssenkrupp logo
Ubisoft logo


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Can An Embedded Web Server Solve For The IoT?

ESP8266 Firmware from scratch with native SDK

Captive DNS Server Example with Mongoose

RESTful Client Example with Mongoose

8 Factors For Choosing an IoT Web Server