What EMshield GmbH does

EMshield GmbH is a privately held German specialist in electromagnetic shielding and structural eavesdropping protection, headquartered in Grasbrunn near Munich. The company consults, plans, and implements shielded environments for clients with the highest security requirements, primarily government agencies, high-security corporate buyers, and critical infrastructure operators. Its technical core consists of two product lines: the ARCtec-flex architectural room shielding system, which uses a lightweight, breathable material to deliver up to 80 dB of attenuation across 30 MHz to 6.0 GHz while remaining visually indistinguishable from a conventional room; and ARCtec modular shielded cabins built from copper or steel sheet modules that achieve greater than 100 dB of attenuation for room-in-room deployments in government high-security zones. Both product lines are bundled with acoustic insulation and laser-microscope window films to protect spoken words.

The company's business model combines project-based professional services (vulnerability analysis, planning, consulting, training) with one-time hardware sales of shielding systems and third-party measurement equipment such as the ANDRE Deluxe near-field detector. Pricing is fully quote-based and not publicly disclosed; commercial engagement runs through direct enterprise field sales via phone and email, with no channel partners or broad digital marketing. The website supports German and English, but operations and stated geographic scope remain regional (Bavaria/DACH). With seven employees and production co-located at the Grasbrunn headquarters, EMshield functions as a boutique specialist rather than a scaled platform, monetizing deep domain expertise rather than volume.

Name

EMshield GmbH

Legal name

EMshield GmbH

Website

https://emshield.eu

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

1–10 employees

Short description

EMshield GmbH is a German specialist that designs and installs electromagnetic shielding systems, including its ARCtec-flex architectural and ARCtec modular cabin lines, to protect government, corporate, and critical-infrastructure clients from eavesdropping and TEMPEST attacks.

Ownership category

akta.pro rank

Product category

Electromagnetic Shielding & High-Security Solutions

NAICS

Security Systems Services (except Locksmiths) (561621)

SIC

Electrical Industrial Apparatus (3620), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

Military Power Supplies, RF/Microwave Components & Ruggedized Electronics (IMABAGAJ)

akta.pro secondary industry

EMI/Shielding, Grounding & Surge Protection for Cabling Systems (HDAFALAL)

Keywords

• Electromagnetic shielding systems
• Structural eavesdropping protection
• TEMPEST emission protection
• TSCM counter-surveillance services
• High-security shielded rooms

Headquarters

HQ city

Grasbrunn

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Marketing or Sales

Revenue model

1. Consulting, Planning & Project Engineering: Advisory services for electromagnetic shielding solutions, including analysis of potential vulnerabilities and implementation planning. Part of comprehensive security projects.
2. Product Sales & Implementation: Sale and installation of shielding systems including ARCtec-flex architectural solutions and modular shielded cabins. Includes acoustic insulation and specialized window films.
3. Measurement Equipment Sales: Sales of measurement devices for counter-surveillance and eavesdropping detection, including ANDRE Deluxe near-field detector receivers.
4. Training Services: Training programs and related services for electromagnetic shielding and counter-surveillance techniques.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

EMshield GmbH designs, sells, and installs electromagnetic shielding solutions for high-security environments, centered on two proprietary product lines — the ARCtec-flex architectural room shielding system and modular copper/steel shielded cabins — and complements them with TSCM counter-surveillance sweeps, TEMPEST emission protection, critical infrastructure shielding, laboratory shielding, and project planning/consulting services for government and high-security corporate clients.

Product overview

EMshield GmbH is a specialized provider of electromagnetic shielding solutions and corporate security services. The product portfolio centers on two main shielding product lines: the ARCtec®-flex architectural room shielding system (for up to 80 dB attenuation, integrated invisibly into building design) and ARCtec modular shielded cabins (for >100 dB attenuation, used in government high-security zones). The portfolio also includes the ANDRE Deluxe near-field detector receiver as a complementary TSCM measurement tool. Beyond products, EMshield offers integrated security services including structural eavesdropping protection, active counter-surveillance sweeps (TSCM), TEMPEST emission protection, high-security zone implementation, critical infrastructure protection, and laboratory shielding services.

Differentiator

Problem solved

Functional benefit

Brands

• ARCtec®-flex: Architectural room shielding system that adapts to all room forms without restricting building physics. Features breathable shielding material with low weight that eliminates need for support structures. Can be treated with conventional floor and wall coverings. Installation by specialists guarantees shielding attenuation of up to 80 dB in frequency range 30 MHz to 6.0 GHz.
• ARCtec

Products and services

• ARCtec-flex Architectural Room Shielding System Architectural room shielding system that integrates seamlessly into building design. Uses a lightweight, breathable shielding material that requires no support structure and can be finished with conventional floor and wall coverings. Guarantees shielding attenuation of up to 80 dB (factor 10,000) in the 30 MHz to 6.0 GHz frequency range. Includes acoustic insulation and special window film for laser microphone protection. Designed for secure rooms, conference facilities, and communication areas in government and high-security corporate environments.
• ARCtec Modular Shielded Cabin (Copper/Steel) Room-in-room shielded cabin constructed from copper or steel sheet modules, achieving guaranteed shielding attenuation values exceeding 100 dB. Realized as a room-in-room solution for the highest security requirements, including government high-security zones. Includes acoustic insulation and laser microphone protection film for windows. Architectural customization is limited relative to ARCtec-flex, but attenuation performance is higher.
• ANDRE Deluxe Near-field Detector Receiver Near-field detector receiver hardware used for technical surveillance countermeasure (TSCM) sweeps to identify and locate potential listening devices or electronic surveillance threats. Sold to clients performing active eavesdropping detection in sensitive premises.
• Structural Eavesdropping Protection (Baulicher Abhörschutz) Service encompassing measures and constructions designed to prevent unauthorized interception of information within buildings. Includes architectural and integrated room shielding solutions (ARCtec-flex), acoustic insulation, and laser microphone countermeasures for the protection of spoken words in sensitive rooms and conference facilities.
• Active Eavesdropping Protection / TSCM (Aktiver Abhörschutz) Systematic investigation of client premises to identify and eliminate potential listening devices or security vulnerabilities, including technical surveillance countermeasures (TSCM) sweeps. Combined with the sale of measurement equipment such as the ANDRE Deluxe near-field detector receiver.
• TEMPEST Emission Protection (Abstrahlschutz / TEMPEST) Design and construction of specially designed areas using structural and technical measures to prevent unauthorized interception or espionage of IT equipment through compromising electromagnetic emissions. Targeted at high-security environments handling sensitive or classified information.
• High-Security Zone Construction (Hochsicherheitszonen) Design and implementation of delimited high-security zones protected by comprehensive security measures to prevent unauthorized access and mitigate potential threats, including electromagnetic shielding integration in government and corporate high-security environments.
• Critical Infrastructure Protection (Schutz kritischer Infrastrukturen) Implementation of shielding and security measures to ensure the functionality and security of vital IT facilities and systems whose failure would have significant societal impact, including protection of critical IT infrastructure, data centers, and operational technology.
• Laboratory & Test Shielding (Labor und Test) Design and outfitting of laboratory environments with electromagnetic shielding to prevent penetration or escape of electromagnetic fields, enabling precise measurements and sensitive experiments. Targeted at scientific, testing, and research facilities.
• Planning & Consulting Services (Planung und Dienstleistungen) Advisory services covering vulnerability analysis, planning, project engineering, and implementation oversight for electromagnetic shielding and eavesdropping-protection projects, from initial risk assessment through delivered, measured secure rooms.

Quantifiable outcome

• ARCtec-flex achieves up to 80 dB shielding attenuation (factor 10,000) in frequency range 30 MHz to 6.0 GHz
• +1 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators1 record

Recent moves4 records

Expansion highlights3 records

Direct peers

• Schirmungswerkstatt: German specialist for EMC/EMI shielding solutions, including shielded rooms and architectural shielding installations. Closely comparable to EMshield in geography, niche specialization, and high-security customer base in the DACH region.
• Siepel: European manufacturer of EMI/RFI shielding materials, gaskets, and shielded enclosures serving defense, aerospace, and secure-room applications. Directly comparable to EMshield in product category, customer profile, and architectural-shielding focus.
• Frankonia EMC Test Systems: German provider of EMC test chambers, shielded rooms, and anechoic chambers for laboratories and high-security applications. Comparable to EMshield in delivering high-attenuation shielded environments, though with a stronger tilt toward test and measurement clients.
• ETS-Lindgren: A leading global manufacturer of electromagnetic shielded rooms, anechoic chambers, and EMC test environments. Directly comparable to EMshield because both deliver architectural and modular RF/EMI shielding solutions for highest-security and measurement-grade applications.
• Holland Shielding Systems: Dutch specialist in EMI/RFI shielding products and custom shielded enclosures. Comparable to EMshield as a smaller, specialist competitor focused on architectural and modular electromagnetic shielding for government, defense, and corporate security clients.

Broad incumbents

• Thales Group: Global defense and security prime with TEMPEST-certified products, secure communications, and government-grade information security solutions. Competes with EMshield at the program-prime level for secure-room and emission-protection contracts.
• Secunet: German cybersecurity and high-security IT incumbent serving government and critical-infrastructure clients. Comparable in customer base and government-security focus, with overlapping but more digitally oriented secure-room and information-protection capabilities.
• L3Harris Technologies: Large U.S. defense prime offering TEMPEST products, secure communications, and electromagnetic-spectrum solutions. Adjacent incumbent competing for the same government eavesdropping- and emission-protection budgets EMshield serves.
• Rohde & Schwarz: Global German test-and-measurement and defense-electronics incumbent with EMC test systems, shielded chambers, and secure communications offerings. Overlaps with EMshield's electromagnetic shielding and TEMPEST-adjacent capabilities as part of a much broader portfolio.

Emerging players

• Research Electronics International (REI): U.S.-based specialist in TSCM (Technical Surveillance Counter-Measures) equipment, including near-field detectors and counter-surveillance tools. Directly comparable to EMshield's ANDRE Deluxe counter-surveillance equipment line and active eavesdropping protection services.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/emshield-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about EMshield GmbH