About Us

BSC is a world-leader in the design and manufacture of Microwave filters and filter based active Subsystems and Modules. With over 30 years of experience in supplying the Defence, Commercial and Professional markets, its technical & manufacturing expertise and delivery performance has placed BSC on the preferred supplier list of many worldwide OEM customers.

BSC Filters

Based in York, UK, BSC offers its full range of non-ITAR products to the global marketplace, whether for small quick turn development runs or high volumes associated with series production of phased array RADAR and EW systems and commercial market place needs.

A small selection of the active microwave assemblies and modules offered include front end preselectors, Switched Filters for Antenna front ends, IF assemblies, DRFM front ends, adaptive filtering including switched multiplexers, switched filter banks and Software Defined Radio filter assemblies.

BSC’s innovative approach to design and modelling offers a low risk high quality approach to solve your technical requirements.

Whilst developing the active solutions portfolio, BSC remains dedicated to excellence in all aspects of filters and multiplexer technology, specializing in the design and manufacture of custom Waveguide, Interdigital, Combline, Cavity, Lumped Element, Thin Film and Microstrip devices.

A Dover Company

Dover is a diversified global manufacturer and solutions provider with annual revenue of approximately $8 billion. We deliver innovative equipment and components, consumable supplies, aftermarket parts, software and digital solutions, and support services through five operating segments: Engineered Products, Clean Energy & Fueling, Imaging & Identification, Pumps & Process Solutions and Climate & Sustainability Technologies. Dover combines global scale with operational agility to lead the markets we serve. Recognized for our entrepreneurial approach for over 65 years, our team of over 25,000 employees takes an ownership mindset, collaborating with customers to redefine what’s possible. Headquartered in Downers Grove, Illinois, Dover trades on the New York Stock Exchange under “DOV.”

Additional information is available at dovercorporation.com.   


Innovation in Design

The quest for ever higher levels of performance and cost competitiveness drives BSC filters design and development initiatives. BSC filters is a pioneer in the use of “Exact Filter” and our patented “Elliptic” technology. We are constantly expanding our suite of propreitary software to push forward to use of “right first time” prototyping.

BSC’s custom design expertize and production facilities are used to produce devices ideally suited to the particular needs of any application.


Connecting and Protecting People,  BSC Filters, a Microwave Products Group (MPG) brand is a leading global provider of mission-critical engineered electronic components and subsystems comprised of four business units in five manufacturing locations. Our brand names are recognized globally including: BSC Filters, York, UK; Dow-Key Microwave, Ventura, CA; K&L Microwave, Salisbury, MD and Dominican Republic and Pole/Zero, West Chester, OH.

Our expertise is the design and manufacture of communications-based specialty products – engineered components and subsystems – for demanding military, space, commercial aerospace/industrial, and telecom infrastructure applications where function and reliability are crucial.

Our current career openings are posted below.  Please visit the associated links listed for specific details and how to apply!


BSC welcomes Emyr Rees, European Sales Manager

BSC welcomes Emyr Rees, European Sales Manager

BSC are very pleased to welcome a new addition to the sales team, based in York!Emyr Rees has joined as our new European Sales Manager and will help to drive BSC forward as we look to expand the range of Products and Solutions offered by BSC to the Defence and...

European Microwave Exhibition

European Microwave Exhibition

BSC Filters together with the Dover Microwave Products Group (www.dovermpg.com) will be exhibiting at the European Microwave Exhibition from 12th to 14th January 2021 in Utrecht, The Netherlands, please drop by and say hello, alternatively please...

Exact JobBOSS Case study

Exact JobBOSS Case study

JOBBOSS HELPS BSC FILTERS INCORPORATE LEAN MANUFACTURING As a designer and manufacturer of crucial components for communications networks, BSC Filters has an unrivalled reputation for flexibility, quality and reliability. Many major projects for aerospace,...

2022 Tradeshows & Exhibitions

Satellite 2022

Satellite 2022

Microwave Products Group Booth #636

Washington, D.C. | March 22nd – 24th, 2022
Walter E. Washington Convention Center

Visit Satellite 2022 Show Website

European Microwave Week

Microwave Products Group Booth #177

London, U.K. |April 4th – 6th, 2022
ExCel London Exhibition & Conference Centre

Visit EuMw Show Website

Satellite 2022

37th Space Symposium

Microwave Products Group Booth #610 

Colorado Springs, CO | April 4th – 7th, 2022
The Broadmoor, Colorado Springs

Visit the 37th Space Symposium Website

European Microwave Week

Microwave Products Group Booth #B8

Montpellier, France | May 10th – 12th, 2022
Gaylord National Convention Center

Visit AOC’s Europe Show Website

Satellite 2022

International Microwave Symposium

Microwave Products Group Booth #6029 

Denver, CO | June 21st – 23rd, 2022
Colorado Convention Center

Visit the International Microwave Symposium Website

AOC International Symposium & Convention

Microwave Products Group Booth #253

Washington, D.C. | October 25th – 27th, 2022
Walter E. Washington Convention Center

Visit AOC’s International Show Website