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This section provides an overview for rf shielded rooms as well as their applications and principles. Also, please take a look at the list of 12 rf shielded room manufacturers and their company rankings. Here are the top-ranked rf shielded room companies as of March, 2025: 1.Isotech, Inc., 2.National Shielding, 3.ETS-Lindgren.
Table of Contents
An RF shielded room is a room designed to block the effects of external electromagnetic waves and magnetic fields that adversely affect electrical and electronic equipment, and to prevent the emission of electromagnetic waves and magnetic fields to the outside.
Electronic devices that use electricity generate electromagnetic waves, and thus electronic devices and equipment are constantly affected by various electric fields. It is also highly likely that they have an effect on their surroundings. A major role of RF shielded rooms is to eliminate the effects of these electromagnetic waves.
RF shielded rooms are covered with conductive materials such as metal or wire mesh. It may be constructed from new construction, or in the case of an existing building, assembled with panels that can be assembled inside. The purpose of use, the measurement details, and the location where you want to install it. The design is based on the environment and other factors.
RF shielded rooms are used to eliminate the adverse effects of electromagnetic waves. Specific applications are as follows:
It is used to provide an environment for product development and quality control of precision instruments and electronic devices. RF shielded rooms are also used to prevent electromagnetic noise (unwanted radio waves) generated by equipment and devices inside a facility from affecting equipment and devices outside the facility.
Electromagnetic shielding uses the property of conductive materials such as wire mesh and metal plates to reflect electromagnetic waves. RF shielded rooms are rooms covered with these conductive materials.
What is important in producing RF shielded rooms is not only to shield the electromagnetic waves generated in the space or influenced by the outside, but also to shield the electromagnetic noise leaking from both sides. In particular, shielding of openings (doors, windows, air conditioning openings, etc.) is a key point.
RF shielded rooms can be classified into the following three categories according to the purpose and frequency range to be handled.
Shielding in EMC countermeasures often refers to electromagnetic shielding. Electromagnetic shielding is often used for EMC and immunity measures for electronic equipment.
RF shielded rooms are characterized by shielding the entire room, down to the doors, air conditioning, and power supply, in order to shield electromagnetic waves. On the other hand, an anechoic chamber is further covered with a radio wave absorber to suppress the reflection of radio waves completely.
The absorber has a spongy, thorny shape and contains carbon powder and ferrite components. By covering the entire surface of the room with the absorber, the incident electromagnetic waves can be attenuated to about 1/100,000 of their original volume. Electromagnetic waves cannot exist in an anechoic chamber, which is sometimes called a radio wave anechoic chamber.
While the main purpose of RF shielded rooms is to evaluate the quality of the target signal itself by blocking out interference and noise, antenna emission tests are often conducted in an anechoic chamber, taking advantage of the non-reflective nature of electromagnetic waves.
Directionality testing of radio waves is essential for mobile communications, including millimeter wave, automotive radar, and sensing technology. An anechoic chamber is an indispensable environment for evaluating the shape of the radiated beam of an antenna and the electrical characteristics of the antenna itself.
Since an anechoic chamber is a very large device, it is costly, including maintenance. RF shielded rooms are less expensive than anechoic chambers because of the radio wave absorber, but still have a certain cost.
Similarly, an anechoic box type is also widely used for various evaluation purposes because of its convenient size.
*Including some distributors, etc.
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National Shielding, based in Dallas, Texas, is a designer and manufacturer of radio-frequency (RF) & magnetic shielding enclosures and MRI-shielded rooms. The company’s product portfolio includes Copper Soldered RF Shielding, Copper Modular RF Shield Faraday Cages, Steel Panel RF Shielding, RF Shield Enclosures, and Faraday Cages used in government & private corporations, communication & server rooms, radar repair facilities, and police evidence rooms. It also offers shield supplies such as LED lighting, fire sprinkler waveguides as well as custom-shielded enclosure filters for customer needs.
ETS-Lindgren is an American manufacturer of electromagnetic as well as acoustic energy components and systems established in 1993 as a subsidiary of ESCO Technologies Company. Based in Cedar Park,Texas, the company produces a wide range of acoustic energy components including various probes and monitors, absorbers, amplifiers, and filters. Its products are used in wireless communication devices, safety testing and shielding applications, and noise removal. ETS-Lindgren primarily serves clients in the defense, government, wireless technology, and information technology sectors.
National Shielding, Inc., established in 2006, is a designer and manufacturer of RF-shielded enclosures based in Grand Prairie, Texas. The company offers various shielded rooms including solid steel panels, RFI-shielded doors, RFI-shielded windows, EMI filters for electrical power, and waveguides for HVAC, fire sprinklers, data, and telecom. It offers industrial RF Shielding, used for shielding police evidence rooms, server rooms, radar repair facilities, labs, and secure government facilities, as well as MRI shielding for MRI scanners in hospitals and imaging centers and magnetic shielding.
Isotech was founded in 182 and is headquartered in Hatfield, Pennsylvania. Isotech is a manufacturer’s representative and distributor of proprietary mechanical and electromechanical products to the industrial, medical, and military OEM and in-plant markets. Some of Isotech’s products include linear slide assemblies & rail sets, shock/vibration mounts & pads, linear bushings & shafting, telescoping lifting columns, positioning stages, air bearings, gas springs/air cylinders, motorized positioning tables, laser marking cutting systems, foamed aluminum/metal/composites, stamped metal, noise control products, and belt driven actuators.
Microwave Vision Group (MVG), established in 1986, is a manufacturer with its corporate headquarters located in Paris, France, specializing in technologies that enable the visualization of electromagnetic waves. The company’s offerings include antennas and antenna measurement systems. It also provides anechoic chambers, modular shielding, as well as precision cut and coated absorbers under the SmartShield brand, tailored for antenna measurement, as well as radio frequency (RF) and electromagnetic pulse (EMP) testing. Additionally, the company offers hyperloss absorbers through its subsidiary, Advanced ElectroMagnetics, Inc. (AEMI). The company serves various industries including aerospace, automotive, consumer electronics, and telecommunications, along with academic and research institutions.
Soliani Emc s.r.l., established in 1980 is a manufacturer of shielding products for electromagnetic interference headquartered in Como, Italy. Its product portfolio comprises conductive adhesives, shielded rooms, doors & windows, fingers strips, conductive & shock-absorbing gaskets, and radar absorment materials used for protection from electromagnetic interference, preventing the reflection of signals and other types of shielding in aerospace, medical, robots & automatic systems, and naval industries. The company has achieved EN 9100 Quality Management System Certification and tests its products for electromagnetic compatibility.
E&C Engineering K.K., established in 1991 and based in Yokohama, Japan, is a manufacturer and supplier of radio wave absorbers. The company's product range includes flexible and thin broadband-type radio absorbers, high-loss silicon rubber sheet, resonance and thin sheet-type radio absorbers, resonance and thin sheet-type radio absorbers, and 60.0GHz sheet radio wave absorbers. These products are used in applications such as 5G, Automotive, Aerospace and Defense, and EMC/EMI. These services include testing facility provision, technical skill support, radio wave test facility design, and manufacturing collaboration through mergers.
Diamond Microwave Chambers Ltd is a manufacturer and supplier of anechoic chambers, RF absorbers, antenna measurement systems, and RF microwave and millimeter-wave absorbers established in 2001 and headquartered in Ottawa, Canada. The company has additional branches in the USA, Poland, Italy, Australia, and India and its production process involves CAD design, structural engineering support, designing, and RF Antenna & EMC testing to allow products to be used in defense, space & satellite, semiconductor, and aerospace applications.
Microwave Factory Co., Ltd. established on February 25, 2003, and based in Japan, is a manufacturer and supplier of Shielded Rooms and Boxes. The company's product range includes the ESD Visualizer, Anechoic Chamber, Radiowave Absorbers, an Antenna Measurement System, and an OTA Measurement System. These products are designed for tasks such as electromagnetic wave measurement, 5G communications testing, microwave assessments, and antenna measurements. Key industries benefiting from these products are Automotive, Aerospace and Defense, Electronics, and Telecommunications. Its services include automatic measurement software solutions, production of positioners like turntables, and supply of accessories for electromagnetic wave testing.
Frankonia specialzes in equipment used to test for radio wave emissions for antennas, the automotive industry and the military. Frankonia makes equipment used to create a chamber for the tests to be carried out such as wall panals and chambers. They also provide the equipment required for the testing. Founded in 1987 Frankonia is the industry leader in electromagnetic compatibility solutions. Based in Bavaria, Germany Frankonia offer a wide range of services from consulting, construction and manufacturing. Frankonia have a worldwide customer base with their unique products. They tailor to the individual needs to each of their customers.
Motabaqah Trading Company (MTC), a subsidiary of Motabaqah Holding Group established in 2016 is a distributor of GCC’s test and measurement equipment headquartered in Riyadh, Saudi Arabia. The company has additional operating offices in UAE, Qatar, Kuwait, Bahrain, and Oman and offers various products including RF scanners, RF-shielded enclosures, oscillators, anechoic chambers, and 5G network tools used in aerospace & defense, telecommunications, service providers, & semiconductors industries. It also serves as an authorized technical representative and service partner offering calibration & repair, ICT & emerging technology, and industrial instrumentation services.
Ranking as of March 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Isotech, Inc. |
21.7%
|
| 2 | National Shielding |
14.6%
|
| 3 | ETS-Lindgren |
11.9%
|
| 4 | R. A. Mayes Company, Inc. |
11.1%
|
| 5 | National Shielding, Inc. |
9.3%
|
| 6 | Motabaqah Trading Company |
6.6%
|
| 7 | Diamond Microwave Chambers Ltd |
6.2%
|
| 8 | E&C Engineering K.K. |
5.3%
|
| 9 | MGV |
4.0%
|
| 10 | Soliani Emc s.r.l. |
3.5%
|
Derivation Method
The ranking is calculated based on the click share within the rf shielded room page as of March 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
5 | 45.5% |
|
United Kingdom
|
1 | 9.1% |
|
Italy
|
1 | 9.1% |
|
Japan
|
1 | 9.1% |
|
Canada
|
1 | 9.1% |
|
Germany
|
1 | 9.1% |
| Saudi Arabia | 1 | 9.1% |
103 products found - Page 2
103 products - Page 2
TS S Japan Co., Ltd.
40+ people viewing
This is an electromagnetic shield room equipped with a stirrer that scatters radio waves. It is possible to test the DUT in a state similar to the ...
TS S Japan Co., Ltd.
20+ people viewing
■Strong point ・Compact chamber solution for automotive component testing ・Fully compliant with EMI/EMS ・Upgradable for E-Drive (road machine, EM...
TS S Japan Co., Ltd.
50+ people viewing
Last viewed: 1 day ago
This is an electromagnetic shield room equipped with a stirrer that scatters radio waves. It is possible to test the DUT in a state similar to the ...
TS S Japan Co., Ltd.
30+ people viewing
Last viewed: 1 hour ago
■Strong point ・Testing of components and systems ・Recommended solution for testing electric motors only ・Connection to motor adapter and measure...
TS S Japan Co., Ltd.
40+ people viewing
Last viewed: 1 day ago
This is an electromagnetic shield room equipped with a stirrer that scatters radio waves. It is possible to test the DUT in a state similar to the ...
TS S Japan Co., Ltd.
30+ people viewing
■Strong point ・Fully compliant with CISPR25 ・Testing systems containing motors, components or batteries -Movable, flexible and adjustable to all ...
TS S Japan Co., Ltd.
30+ people viewing
This is an electromagnetic shield room equipped with a stirrer that scatters radio waves. It is possible to test the DUT in a state similar to the ...
TS S Japan Co., Ltd.
20+ people viewing
■Strong point ・Cost-effective, high-performance solution with 3.0m measuring distance and QZ up to 3.0m ・Fully compliant with EMI/EMS ・Tradition...
TS S Japan Co., Ltd.
30+ people viewing
Last viewed: 1 day ago
■TSSJ original ST series This is an electromagnetic shielding tent that supports 1MHz to 6GHz. This is a very durable radio wave shielding tent tha...
TS S Japan Co., Ltd.
30+ people viewing
■Strong point ・Cost-effective, high-performance solution with 3.0m measuring distance and QZ from ø1.2m up to 2.0m ・Fully compliant with EMI/EMS ...
TS S Japan Co., Ltd.
20+ people viewing
Last viewed: 1 day ago
■TSSJ original ST series This is an electromagnetic shielding tent that supports 1MHz to 6GHz. This is a very durable radio wave shielding tent tha...
TS S Japan Co., Ltd.
30+ people viewing
Last viewed: 11 hours ago
■Strong point ・Efficient high-performance solution for measuring distances of 3.0m and 5.0m and QZ up to Φ3.0m ・Fully compliant with EMI/EMS - Li...
TS S Japan Co., Ltd.
40+ people viewing
Last viewed: 1 day ago
■Strong point ・Reduction of reflection inside electromagnetic wave shield tent ・Wide range of radio wave absorbers (pyramid type, flat plate type...
TS S Japan Co., Ltd.
40+ people viewing
Last viewed: 3 hours ago
■Strong point ・Compact chamber design for military applications ・Fully compliant with EMI/EMS ・Excellent performance with Frankonia's original F...
TS S Japan Co., Ltd.
30+ people viewing
Last viewed: 1 day ago
■Strong point ・High-performance solution that supports measurement distances of 3.0m and 5.0m and QZ up to Φ4.0m ・Large turntable or mobile dynam...
TS S Japan Co., Ltd.
30+ people viewing
■Strong point ・Achieves high shielding performance compatible with wideband (20 MHz to 40 GHz) - Adopts a magnetic type door that is easy to open ...
