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SDI GROUP PLC

Public Limited Company Active

in

Registration No.
06385396
Incorporation Date
2007-09-28
Company Type
Public Limited Company
Address
Cambridge, United Kingdom
Website
www.sdigroup.com/
Source: Companies House

SDI GROUP PLC is a Public Limited Company registered in United Kingdom under 06385396, and its current status with Companies House is active. The company was incorporated on 28 September 2007 and lists its registered address as Cambridge, United Kingdom. No shareholders are recorded for SDI GROUP PLC; ownership in this jurisdiction is normally filed as the Confirmation Statement (CS01) under the Companies Act 2006, but no such filing is on record here. No beneficial owner (UBO) data is recorded for SDI GROUP PLC; access to beneficial-ownership data in this jurisdiction is governed by its own register rules. This profile is sourced directly from Companies House and was last updated on 22 September 2026.

Data Provenance
This record is sourced directly from official government registries, including Companies House.

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Officers

5

Directors and officers of SDI GROUP PLC

Two of the 5 officer records shown for SDI GROUP PLC are current appointments, filed with Companies House. Stephen Brown (appointed 2023-09-29) and Mark Fryer (appointed 2026-07-16) both serve as Director. The remaining 3 records shown (Philip Atkin, Isabel Napper and 1 other) are former appointments that have since been resigned. The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.

Data availability

The register reports 15 officers in total, including past appointments, though only the 5 most relevant records are shown here.

SB
Stephen Brown ACTIVE

Appointed
2023-09-29
Residence
🇬🇧 United Kingdom
Occupation
Director

MF
Mark Fryer ACTIVE

Appointed
2026-07-16
Residence
🇬🇧 United Kingdom
Occupation
Director

PA
Philip Atkin RESIGNED

Appointed
2007-11-09
Resigned
2011-08-31
Residence
🇬🇧 United Kingdom
Occupation
Director

IN
Isabel Napper RESIGNED

Appointed
2017-02-21
Resigned
2022-08-08
Residence
🇬🇧 United Kingdom
Occupation
Director

JA
Jonathan Abell RESIGNED

Appointed
2018-07-02
Resigned
2022-09-21
Residence
🇬🇧 United Kingdom
Occupation
Director

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Group Structure

Group structure of SDI GROUP PLC

SDI GROUP PLC has no recorded parent company — it sits at the top of its own group structure, with 24 subsidiaries recorded beneath it across 2 jurisdictions. Each of these downward relationships is derived rather than filed: resolved by matching entities across the registry network, not stated directly in a single document.

  • MPB INDUSTRIES LIMITED (United Kingdom)
  • SAFELAB SYSTEMS LIMITED (United Kingdom)
  • SYNOPTICS LIMITED (United Kingdom)
  • FRASER ANTI-STATIC TECHNIQUES LIMITED (United Kingdom)
  • FISTREEM INTERNATIONAL LIMITED (United Kingdom)
  • THERMAL EXCHANGE LIMITED (United Kingdom)
  • COLLINS WALKER LIMITED (United Kingdom)
  • APPLIED THERMAL CONTROL LIMITED (United Kingdom)
  • LABHUB LIMITED (United Kingdom)
  • CHELL INSTRUMENTS LIMITED (United Kingdom)

Data availability

Those 24 subsidiaries span United Kingdom, Portugal jurisdictions, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. Four of the 24 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.

Ultimate HQ
SDI GROUP PLC
United Kingdom
MPB INDUSTRIES LIMITED
United KingdomGB 04966728

SAFELAB SYSTEMS LIMITED
United KingdomGB 05336826

SYNOPTICS LIMITED+ subsidiaries
United KingdomGB 01874861

FRASER ANTI-STATIC TECHNIQUES LIMITED+ subsidiaries
United KingdomGB 02642741

FISTREEM INTERNATIONAL LIMITED
United KingdomGB 05136733

THERMAL EXCHANGE LIMITED
United KingdomGB 02619819

COLLINS WALKER LIMITED
United KingdomGB 01087370

APPLIED THERMAL CONTROL LIMITED
United KingdomGB 03079409

+16 more entities

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Frequently Asked Questions

Who is SDI GROUP PLC's UBO (Ultimate Beneficial Owner)?

No Ultimate Beneficial Owner (UBO) data is recorded for SDI GROUP PLC; access to beneficial-ownership data in this jurisdiction is governed by its own register rules.

What is SDI GROUP PLC's company registration number?

SDI GROUP PLC's registration number is 06385396, filed with Companies House in United Kingdom. Its current status on the register is active.

Is SDI GROUP PLC still an active company?

SDI GROUP PLC's status on Companies House is listed as active.

When was SDI GROUP PLC incorporated?

SDI GROUP PLC was incorporated on 28 September 2007, according to Companies House.

What is SDI GROUP PLC's registered address?

The registered address on file for SDI GROUP PLC is Cambridge, United Kingdom.

What legal structure is SDI GROUP PLC registered as?

SDI GROUP PLC is registered as a Public Limited Company in United Kingdom.

Who are the officers/directors of SDI GROUP PLC?

Two of the 5 officer records shown for SDI GROUP PLC are current appointments, filed with Companies House. Stephen Brown (appointed 2023-09-29) and Mark Fryer (appointed 2026-07-16) both serve as Director. The remaining 3 records shown (Philip Atkin, Isabel Napper and 1 other) are former appointments that have since been resigned.

Does SDI GROUP PLC have a parent company or subsidiaries?

SDI GROUP PLC has no recorded parent company — it sits at the top of its own group structure, with 24 subsidiaries recorded beneath it across 2 jurisdictions. Those 24 subsidiaries span United Kingdom, Portugal jurisdictions, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. Four of the 24 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.

Can Zavia monitor changes to SDI GROUP PLC's ownership over time?

This profile reflects a point-in-time snapshot from Companies House. Zavia's monitoring API can track changes to SDI GROUP PLC's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.

Can I access SDI GROUP PLC's data through an API?

Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including United Kingdom, so records like SDI GROUP PLC's registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.

Where does this company information come from, and how current is it?

This record is sourced directly from Companies House and was last synced on 22 September 2026.

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