
EMshield GmbH specializes in consulting, planning, project management, and implementation of solutions in the field of electromagnetic shielding for special requirements. The range of services includes eavesdropping-proof and radiation-proof rooms, technical shielding, and security projects. Another focus is the sale of measuring devices for eavesdropping defense. In addition, the company offers training courses and related services.
The company is headquartered in Grasbrunn near Munich, where it has offices, training rooms, and storage and shipping infrastructure. Production takes place in the immediate vicinity of the company headquarters.
Since the 1990s, EMshield GmbH has consistently pursued the goal of providing products and solutions of the highest quality to meet the requirements of customers with the highest security standards.

Structural eavesdropping protection comprises measures and constructions designed to prevent unauthorized eavesdropping on information within a building.

Active eavesdropping protection refers to the systematic inspection of premises to identify and eliminate potential eavesdropping devices or security vulnerabilities.

A radiation-proof room is a specially designed area that is constructed and equipped in such a way as to effectively prevent unauthorized eavesdropping or spying on IT devices.

A high-security zone is a demarcated area that is protected by extensive security measures to prevent unauthorized access and ward off potential dangers.

The protection of critical infrastructure encompasses all measures aimed at ensuring the functionality and security of vital IT facilities and systems whose failure would have a significant impact on society.

Planning and services for eavesdropping protection include analyzing potential vulnerabilities and implementing measures to prevent unauthorized information leaks on premises.

Electromagnetic shielding in laboratories refers to the design and equipment of rooms to prevent the penetration or escape of electromagnetic fields, thereby enabling precise measurements and sensitive experiments.


Shielded cabins made of copper or steel sheet modules are used to meet the highest requirements for security and electromagnetic shielding attenuation. This guarantees shielding attenuation values of > 100 dB.
The architectural design options are significantly limited in this case. These cabins are implemented as room-in-room solutions, and window solutions are limited.
The selection of doors, wall coverings, and floor coverings is limited.
Such systems are used in particular in high-security zones in the public sector.
To protect spoken words, acoustic insulation and a special film are also installed on the windows to protect against laser microphones.


One of the main areas of application for the ARCtec®-flex architectural room shielding system is currently in eaves-proof areas.
When electromagnetic room shielding can be easily installed, adapts to all room shapes, and does not restrict building physics, it is referred to as architectural or integrated room shielding.
The main component of architectural room shielding is a special shielding material that, thanks to its low weight, eliminates the need for a complex support structure. It is breathable and can be finished with conventional floor and wall coverings.
Installation is similar to that of normal wallpaper. For user acceptance, it is extremely important that such a room does not differ from conventional rooms.
When installed by specialists, shielding attenuation of up to 80 dB (factor 10,000) is guaranteed in the frequency range from 30 MHz to 6.0 GHz.
To protect spoken words as well, acoustic insulation and a special film are installed on the windows to protect against laser microphones.