API Technologies


API Technologies is a dominant technology provider of RF/microwave, microelectronics, and security technologies for critical and high-reliability applications. Markets span defense, aerospace, medical/industrial, and communications/consumer.


RF & Microwave Products

A leader in high-performance RF/microwave solutions, the company designs, develops and manufactures one of the world’s largest selections of RF, microwave and millimeter wave components and systems for use in defense, commercial, and aerospace applications. The company offers both US and Europe-based design and manufacturing options. Selected product brands include: Spectrum Microwave™, RF2M-UK, and CMT Filters™.



Custom designed and off-the-shelf components from API support mission critical applications, able to endure harsh conditions and extreme temperatures. Our products are used in applications, including communications equipment, aircraft systems, computer peripherals, process control equipment , and industrial products (including downhole). We also offer a broad range of space grade microelectronics. Selected product brands include: Spectrum Microwave™, and RF2M-UK.


Electromagnetic Integrated Solutions (EIS)

Probably best known for our Spectrum Control™ line of coaxial Electromagnetic Interference (EMI) components, the company also offers a wide range of ceramics, film capacitors, connectors, and magnetics for use in a variety of defense, aerospace, industrial, energy, commercial, and consumer applications. The company also offers comprehensive EMI testing services. Other featured product brands include: Filtran™, Keytronics™ and RTI Electronics™.


Power & Systems Solutions

Whether used in data centers or the world’s harshest environments, API Technologies’ power products offer commercial and defense customers superior power, reliability, and energy efficiency. The company is a leading manufacturer of AC and DC power distribution products, as well as circuit protection systems, rectifiers, and award-winning Explosive Ordnance Disposal (EOD) products. Additionally, the company offers a broad range of systems solutions services. Selected product brands include: Spectrum Power™, API Electronics™, TM Systems™, Hawki™, and CobraSight™.


Secure Systems & Information Assurance

The company is a leading provider of secure systems used by global governments, defense agencies, and enterprise customers worldwide. Products span encryption, secure networking, and EMCON®/SST™ TEMPEST and Emanation Security products. Other featured product brands include ION Networks®, Cryptek™, and Netgard™.


Electronics Manufacturing Services (EMS)

With a specialty in New Product Introductions (NPI), the company delivers award-winning domestic and international contract manufacturing services for commercial and industrial companies and major defense prime contractors.


Since 1969, major producers of communications equipment, peripherals, instrumentation, and process control equipment have trusted Filtran® brand electronic components for use in a wide variety of commercial and military products. 

First launched in 1971, the Keytronics® brand of products spans custom magnetic devices, transformers and custom electronic equipment designed and manufactured in accordance with the requirements of MIL-T-27.

A leading name in specialised system critical electronics requiring precision and high reliability in harsh environments, the product line includes both proprietary and custom-designed electronics for a broad range of applications.

First launched in 1972, RTI Electronics brand products include passive electronic components including film capacitors, magnetic transformers and inductors, and audio power conditioning units.

Founded in 1968, the Spectrum Control brand is best known for its leading line of Electromagnetic Interference (EMI) filters.

Explore Spectrum Microwave, one of the world's leading brands of RF, microwave and millimeter wave products, including filters, frequency sources, components, and IMAs.

The most trusted name in power management and custom power solutions for commercial and defense applications. 

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