About us
Engineers who think like attackers.
Clevsi was founded with a simple idea: software should be high quality, built with cutting edge technologies and strong against cyber attacks.
The world is moving fast toward security. Clevsi wants to be a leader in that transformation.
Our vision
“We combine offensive security expertise with solid software engineering. The experience we gain breaking systems flows directly into the systems we build — and vice versa.”
What we stand for
Integrity
We handle your systems and data with discretion and strict confidentiality.
Craft
We care about details, from a kernel config to a button animation.
Clarity
Plain language, honest estimates and reports that people can act on.
Curiosity
We keep learning, researching and pushing our tools forward.
Based in Tuscany, working everywhere
Our headquarters are in Chiusi, in the province of Siena. We work with clients across Italy and beyond, on site or remotely.
Clevsi S.r.l.via Mameli, 94
53043 Chiusi (SI), Italia
Partners
In good company.
We work side by side with companies that share our standards for quality.
Have a project in mind?
Whether it's a security assessment, a custom OS or a brand new app, let's talk about it.
Get in touchUnder attack right now?
Contact us immediately: the first hours of an incident are the most important ones.