We cracked Stuxnet. Now we help large enterprises to build resilient OT infrastructures.

We have been among the first to develop the field of OT security, way back in the Nineties. We have cracked the Stuxnet malware. We have helped asset owners in critical infrastructure and manufacturing to protect against nation-state level cyber attacks.

Our game-changing OTbase OT asset management software helps companies to build secure and reliable OT infrastructures in times of shrinking head counts.

Bootstrapped and growing fast

Consider Langner an international software startup with 30+ years of experience. We morphed from a leading OT security consultancy to a software vendor, based in the US and in Germany.

Langner is self funded and independent. We don’t depend on external capital and crazy growth expectations. We pick customers who share our vision:

OT security approaches which don’t include engineering are bound to fail.

If you share this vision, we’d like to hear from you!

Go to contact page >

Langner started out as a software company developing PC driver software to connect to industrial automation devices. In the Nineties, when networks became a thing and industrial control systems became networked at a large scale, we were among the first to point out the cyber security risk.

OT security consulting then became our main focus for over twenty years. Our analysis of the Stuxnet malware has triggered global changes in policy and defense. We were asked for advice by the White House, the Pentagon, the US Senate, and the United Nations.

In our consulting practice we noticed that every single client, no matter how big or small, no matter which industry, lacked an asset inventory which could act as the factual basis for a solid cyber risk assessment. Today, the OTbase OT Asset Management software is our sole focus.

Lead by a cyber security luminary

Ralph Langner

Ralph Langner founded the German branch of the Langner group in 1988, and the US-based Langner Inc. in 2017. Ralph accumulated 25 years of hands-on field experience in the cyber security issues of power plants, water treatment facilities, nuclear facilities, food and beverage plants, automotive factories, steel mills, and many more.

He received worldwide recognition for his swift and comprehensive analysis of the Stuxnet malware and is considered a leading global expert on cyber defense.

Commited to customer success

Langner is a customer-centric company. We work closely with our customers. Technical Account Managers help customers to achieve their integration goals, and product roadmap decisions are driven by customer needs and wants. In short, we make sure that our customers achieve success in their OT asset management journey.


“Ralph Langner is the global authority on cyber-physical attacks.”
Richard Danzig

Former Secretary of the US Navy, Member of the US Defense Policy Board

“The Langner Group has assembled the world’s top experts in cyber-physical security.”
Richard Clarke

Former Special Advisor to the US President on Cyber Security, former Chief Counter-Terrorism Adviser on the National Security Council

“Ralph Langner knows cyber-physical security and its policy implications like nobody else.”
Stewart Baker

Former General Counsel of the National Security Agency, Steptoe & Johnson

Enterprise-grade OT asset management software