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Gathering insights about Cyllene…

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Cyllene Tech Stack

Cyllene uses 8 technology products and services including Power BI, Azure Active Directory, React, and more. Explore Cyllene's tech stack below.

Power BI
Business Intelligence
Azure Active Directory
Identity And Access Management
React
Javascript Frameworks
HAProxy
Load Balancers
Windows 7
Operating Systems
Bootstrap
UI Frameworks
Apache HTTP Server
Web Servers
Conditional Fields for Contact Form 7
Widgets

Media & News

Cyllene Group attended event Energaïa trade show on Dec 1st '25.
In response to rising cyber risks, Cyllene unveiled its latest device at the Energaïa trade show in December 2025: the Cyllene Box, also known as the RC-DC4/5G.
Jan 20, 2026 | www.pv-magazine.com

Cyllene's Email Address Formats

Cyllene uses at least 1 format(s):

Cyllene Email Formats	Example	Percentage
First.Last@groupe-cyllene.com	John.Doe@groupe-cyllene.com	99%
First.Middle@groupe-cyllene.com	John.Michael@groupe-cyllene.com	1%

Frequently Asked Questions

Where is Cyllene's headquarters located?

Cyllene's main headquarters is located at 4 Avenue Marceau Paris, Île-de-france 75008 France. The company has employees across 2 continents, including EuropeNorth America.

What is Cyllene's official website and social media links?

Cyllene's official website is groupe-cyllene.com and has social profiles on LinkedIn.

What is Cyllene's NAICS code?

Cyllene's NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does Cyllene have currently?

As of June 2026, Cyllene has approximately 295 employees across 2 continents, including EuropeNorth America. Key team members include Head Of Strategic Alliances And Partnership: O. M.Key Account Manager: A. L. F.Cloud Team Leader: D. V.. Explore Cyllene's employee directory with LeadIQ.

What industry does Cyllene belong to?

Cyllene operates in the IT Services and IT Consulting industry.

What technology does Cyllene use?

Cyllene's tech stack includes Power BIAzure Active DirectoryReactHAProxyWindows 7BootstrapApache HTTP ServerConditional Fields for Contact Form 7.

What is Cyllene's email format?

Cyllene's email format typically follows the pattern of First.Last@groupe-cyllene.com. Find more Cyllene email formats with LeadIQ.

When was Cyllene founded?

Cyllene was founded in 1986.

Cyllene

Q: What is Cyllene's official website and social media links?

Cyllene's official website is groupe-cyllene.com. Cyllene has social profiles on LinkedIn.

Q: How many employees does Cyllene have currently?

Cyllene has approximately 295 employees.

Q: What technology does Cyllene use?

Cyllene's tech stack includes Puppet, DoubleClick Floodlight, Elasticsearch, LinkedIn, Google Cloud Platform.

Q: What is Cyllene's NAICS code?

Cyllene's NAICS code is 5415 (Computer Systems Design and Related Services).

IT Services and IT ConsultingÎle-de-france, France201-500 Employees

Cyllene is a mid-sized IT services and consulting firm based in Paris, Île-de-France, employing hundreds of professionals. It provides a full spectrum of capabilities, including advisory services, architecture definitions, hosting and managed services, cybersecurity and training, deployment of applicative and web technologies, and data intelligence and analytics.

The company serves organizations pursuing digital transformation by delivering integrated IT support across strategy, architecture, operations and analytics. In December 2025, Cyllene unveiled the Cyllene Box RC-DC4/5G at the Energaïa trade show in response to rising cyber risks. The firm also participated in Energaïa at that time, reflecting ongoing engagement with industry events.