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Filtronic PLC
Filtronic is a radio frequency expert working with clients to solve their complex RF, microwave and mmWave problems. The company’s own description of itself, taken from its website.
Active 32 years old · 1,286th oldest of 4,506 · incorporated in the 1990s
Registered office
1 ROSALIND FRANKLIN WAY, NETPARK, SEDGEFIELD, COUNTY DURHAM, TS21 3FR
Online
Website filtronic.com
News and announcements on their own site
Social accounts X, LinkedIn, YouTube
Found by searching for the company name and kept only where the domain matches it. Social accounts are listed only where the company links to them from its own site. Nothing here is supplied by the company to us.
Group structure
It is the immediate parent of one entity:
- FILTRONIC BROADBAND LIMITED
Ownership as recorded by GLEIF, the body that issues Legal Entity Identifiers. Unlike a shared registered office, these relationships are filed and validated, so they are evidence of a real corporate link.
Filing history
This company has 699 documents on its Companies House record. The most recent accounts were filed on 28/10/2025. Its last confirmation statement or annual return was filed on 08/01/2026.
The most recent filings
This is the list of documents filed, not their contents. A line saying accounts were filed records that they were filed and when; it says nothing about turnover, profit or assets, which are inside the documents themselves and are not published here. Read the filings on the Companies House record.
Who runs it
The register lists 6 current officers and 41 who have resigned.
Who controls it
The register shows no current person or entity with significant control for this company.
Charges
A charge is security a company gives a lender over its assets. This company has 13 registered charges, of which 1 are not yet recorded as satisfied.
Santander UK PLC Outstanding, created 18/10/2024
Barclays Bank PLC Fully satisfied, created 17/12/2015
Fanus Group International, Inc. Fully satisfied, created 14/10/2015
Faunus Group International, Inc. Fully satisfied, created 14/10/2015
Hsbc Bank PLC Fully satisfied, created 17/02/2015
Barclays Bank PLC Fully satisfied, created 27/09/2007
Barclays Bank PLC as Agent and Trustee for Itself and Each of the Senior Beneficiaries(The Security Trustee) Fully satisfied, created 17/02/2004
Barclays Bank PLC Fully satisfied, created 02/03/2001
Showing the 8 most recent. The full list is on the Companies House record.
Officers, controllers and charges are as recorded on the Companies House register on 13/10/2026, and the register changes daily. Appearing here is not an allegation about anyone. Read the current record on the Companies House record.
What it does
- 26309 - Manufacture of communication equipment other than telegraph, and telephone apparatus and equipment
- 61200 - Wireless telecommunications activities
This page is compiled from the public register. Companies House does not verify the information filed with it, so treat everything here as what the company reported rather than as established fact. For filings, officers and charges, see the official Companies House record.
Registered office
No other PLC on the register gives this postcode.
On the register
- 1,286th oldest of 4,506 PLCs
- One of the 1990s cohort
- Not in liquidation or facing strike off
There are 4,506 PLCs in Britain, under a tenth of one per cent of the register. The whole count.