DIPLOMA HOLDINGS PLC

UK registered

Companies House number 00256111·9 UK shareholdings·5 ownership layers

DIPLOMA HOLDINGS PLC is a UK-registered corporate shareholder (Companies House number 00256111) and holds shares in 9 active UK companies, recorded across 12 share-class positions on their Companies House confirmation statements (CS01). Beneath those direct holdings OpenRegistry resolves a further 30 companies spanning 5 ownership layers, of which 6 direct holdings are themselves holding companies; the persons-with-significant-control register independently agrees on 9 of these holdings. It ranks #1,870 of 54,210 corporate shareholders by number of active UK holdings. Programmatic access via MCP at https://openregistry.sophymarine.com/mcp.

Companies held
9

Share-class positions
12

Identity
UK company 00256111

Jurisdiction
UNITED KINGDOM

Ownership layers below
5

Holdings that are holding companies
6

PSC register agrees on
9 holdings

Company profile

Companies House profile of DIPLOMA HOLDINGS PLC

Shareholders

Shares held by DIPLOMA HOLDINGS PLC in 9 UK companies

Ownership chain

30 companies across 5 layers beneath DIPLOMA HOLDINGS PLC

Official record

Companies House record 00256111

Shareholdings

Every company DIPLOMA HOLDINGS PLC appears on as a member, as filed. 9 of 9 are linked to their Companies House profile.

Company held	Status	Accounts	Share class	Shares	% of class	% of capital	Total % of capital	As of
TECHSIL GROUP HOLDINGS LIMITED ▼13498476	Active	AUDIT EXEMPTION SUBSIDIARY	A ORDINARY	17,100,000	100.00%	95.00%	95.00%	2022-07-06
DIPLOMA EUROPE HOLDINGS LIMITED01170317	Active	FULL	ORDINARY	300				2025-11-30
FS CABLES LIMITED01389463	Active	DORMANT	ORDINARY	0				2021-06-08
M SEALS UK (TECHNICAL DISTRIBUTION) LIMITED01470514	Active	AUDIT EXEMPTION SUBSIDIARY	ORDINARY B	0				2023-01-11
M SEALS UK (TECHNICAL DISTRIBUTION) LIMITED01470514	Active	AUDIT EXEMPTION SUBSIDIARY	ORDINARY	0				2023-01-11
FPE SEALS LIMITED03725829	Active	AUDIT EXEMPTION SUBSIDIARY	ORDINARY	0				2023-03-03
FSC GLOBAL LIMITED04326243	Active	DORMANT	ORDINARY	0				2021-11-21
SHOAL GROUP LIMITED ▼12772850	Active	AUDIT EXEMPTION SUBSIDIARY	ORDINARY	2,901				2021-07-27
R&G FLUID POWER HOLDINGS LIMITED ▼13952403	Active	AUDIT EXEMPTION SUBSIDIARY	A ORDINARY	98				2025-03-02
R&G FLUID POWER HOLDINGS LIMITED ▼13952403	Active	AUDIT EXEMPTION SUBSIDIARY	B ORDINARY	2				2025-03-02
M SEALS UK LIMITED ▼14314695	Active	AUDIT EXEMPTION SUBSIDIARY	B ORDINARY	1				2024-08-23
M SEALS UK LIMITED ▼14314695	Active	AUDIT EXEMPTION SUBSIDIARY	ORDINARY	2,335,289				2024-08-23

Ownership structure below these holdings

30 further companies sit beneath this entity’s direct holdings, across 5 layers. Each is linked to its Companies House profile.

TECHSIL GROUP HOLDINGS LIMITED13498476
- TECHSIL HOLDINGS LIMITED06132081 A ORDINARY / B ORDINARY · 100.00%
  - TECHSIL LIMITED02447014 A ORDINARY / B ORDINARY · 100.00%
    - VIKING INDUSTRIAL PRODUCTS LIMITED02385727 ORDINARY · 50.00%
    - VIKING CONVERSIONS LIMITED03829706 ORDINARY / ORDINARY B / ORDINARY C / ORDINARY D / ORDINARY E
SHOAL GROUP LIMITED12772850
- SPECIALISED WIRING ACCESSORIES LIMITED02395173 ORDINARY
R&G FLUID POWER HOLDINGS LIMITED13952403
- R&G FLUID POWER GROUP LIMITED10404128 A ORDINARY / B ORDINARY / C ORDINARY / ORDINARY D / ORDINARY E / ORDINARY F / ORDINARY G / ORDINARY H / PREFERENCE / REDEEMABLE PREFERENCE · 100.00%
  - HYDRAULIC & OFFSHORE SUPPLIES LIMITED03016257 ORDINARY · 100.00%
  - FLUID POWER SERVICES LIMITED02553333 A ORDINARY / ORDINARY
  - MERSEYFLEX LIMITED02675108 ORDINARY
  - HYDRAPRODUCTS LIMITED04578558 ORDINARY
  - LANCASHIRE HOSE AND FITTINGS LIMITED04603917 ORDINARY / ORDINARY A
  - LANTECH SOLUTIONS LIMITED04861663 ORDINARY
  - CENTURY HOSE & COUPLINGS LTD05871755 ORDINARY
  - HEDLEY DMB LIMITED07127593 ORDINARY
  - PTFEFLEX LTD08426241 ORDINARY
  - AMG (BRIGHOUSE) LIMITED08670642 ORDINARY A / ORDINARY B SHARES
  - PNEUMATIC SERVICES LIMITED11629646 A ORDINARY / B ORDINARY / C ORDINARY / D ORDINARY
  - MILLENNIUM COUPLING COMPANY LTD04029109 ORDINARY A / ORDINARY B
    - MILLENNIUM ENGINEERING (2012) LTD.08044950 ORDINARY
  - PLASTIC AND RUBBER GROUP HOLDINGS LIMITED09148488 A ORDINARY SHARES / B ORDINARY SHARES / C ORDINARY SHARES / E ORDINARY / F ORDINARY / G ORDINARY SHARES / ORDINARY
    - PLASTIC AND RUBBER GROUP LIMITED07173176 ORDINARY · 100.00%
      - MOUNTFORD RUBBER & PLASTICS LIMITED01982093 ORDINARY
    - FAST GASKETS AND PARTS LIMITED03927192 ORDINARY A 10P SHARES / ORDINARY B 10P SHARES
  - VALVES ONLINE LIMITED04994458 ORDINARY / ORDINARY A
  - RUBBERLAST GROUP LTD00399306 ORDINARY
  - R&G FLUID POWER GROUP (HYDRAULICS DIVISION) LIMITED00809034 A ORDINARY
  - HENRY GALLACHER LIMITED00857484 ORDINARY
  - ABBEY HOSE COMPANY LIMITED01712589 ORDINARY A / ORDINARY B / ORDINARY C / ORDINARY D / ORDINARY E
  - GLOBAL HYDRAULIC SERVICES LIMITED02400813 A ORDINARY / B ORDINARY / C ORDINARY / D ORDINARY / ORDINARY
M SEALS UK LIMITED14314695
- M SEALS UK (ENGINEERED SEALS DIVISION) LIMITED04851586 ORDINARY

Related company owners

Corporate shareholders that hold shares in the same UK companies as DIPLOMA HOLDINGS PLC:

M SEALS UK LIMITED14314695 4 shared holdings
R&G FLUID POWER GROUP LIMITED10404128 1 shared holding

Other corporate shareholders of comparable size registered in UNITED KINGDOM:

TARMAC CEMENT LIMITED00066558 9 UK holdings
REXAM LIMITED00191285 9 UK holdings
BRIXTON LIMITED00202342 9 UK holdings
THOMAS ARMSTRONG (HOLDINGS) LIMITED00244751 9 UK holdings
BASSETT TRUST LIMITED00257435 9 UK holdings
HANSON QUARRY PRODUCTS EUROPE LIMITED00300002 9 UK holdings
SIR RICHARD SUTTON LIMITED00346359 9 UK holdings
ARRIVA LIMITED00347103 9 UK holdings

Every company on this page is identified by its original Companies House registration number, shown beside its name and repeated in the data-company-number attribute of the same element. A shareholder that does not resolve to a registered company carries no number.

▼ marks a holding that itself holds shares in further companies, so ownership continues below it.

“% of capital” is the entity’s share of issued capital by nominal value, the correct basis when a company has multiple share classes.

Figures are as filed on each company’s most recent confirmation statement; the “As of” column gives that statement date. Source: Companies House Free Company Data and CS01 confirmation statements. Official record: find-and-update.company-information.service.gov.uk.