Diploma

London, United Kingdom Founded: 1931 • Age: 95 yrs Listed
Value-add distributor of specialized products and services

About Diploma

Diploma is a company based in London (United Kingdom) founded in 1931. The company has 3,600 employees. Diploma has completed 16 acquisitions, including Cablecraft, DICSA and Edcoseal. Diploma offers products and services including Value-Add Distribution and Sustainability Solutions.

  • Headquarter London, United Kingdom
  • Employees 3,600
  • Stage Public
  • Email
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  • Phone
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  • Website diplomaplc.com
  • Social LinkedIn
  • Legal Name Diploma Plc
Key Metrics
  • Annual Revenue
    $2.04 B (USD)
    11.82
    as on Sep 30, 2025
  • Net Profit
    $248.56 M (USD)
    43
    as on Sep 30, 2025
  • EBITDA
    $541.61 M (USD)
    27.02
    as on Sep 30, 2025
  • Employee Count
    3,600
  • Investments & Acquisitions
    Cablecraft

    & 15 more

Products & Services of Diploma

Diploma offers a comprehensive portfolio of products and services, including Value-Add Distribution and Sustainability Solutions.

Value-Add Distribution
Distribution Services

Value-add distribution of products in seals and life sciences is provided to facilitate customer operations.

Sustainability Solutions
Environmental Services

Solutions for environmental responsibility and social impact are offered alongside core distribution activities.

People of Diploma

25 people are tracked at Diploma (17 in leadership, 8 in team); the tracked headcount is 3,600.

NameRoleGroup
Joanna Smith
Chief Financial Officer - ControlsLeadership
Sam Delestienne
Vice President Corporate DevelopmentLeadership
Johnny Thomson
Group Chief Executive OfficerLeadership
Klaus-Peter Peya
Sector CFO International SealsLeadership
Peter Soelberg
Chief Executive Officer - Life Sciences SectorLeadership
Fernando Araujo
Country Operations DirectorLeadership
Brian Collins
Chief Financial Officer - North America Seals AftermarketLeadership
Brett Valliant
VP Corporate Development, Global Life Science SectorLeadership
Paul Lincoln
Vice President, Head Of Corporate DevelopmentLeadership
David Goode
Chief Executive Officer, Controls SectorLeadership
Kapil Kedia
Vice President, Supply Chain & Operational ExcellenceLeadership
Steve Sargeant
Group Corporate Development DirectorLeadership
Alessandro Lala
Ceo, International SealsLeadership
Cindy Nijs
Managing Director Diploma Healthcare Group, Nordics (simonsen & Weel Group/kungshusen MedicinskaLeadership
Andrew Donald
Finance Director, Australia SealsLeadership
Phil Walker
Cfo, LifesciencesLeadership
Quresh Mukadam
Head Of Fp&aLeadership
Ali Juma
Senior Group Fp&a ExecutiveTeam
Jasmine Palmer
Corporate Development (m&a) ManagerTeam
Ieva Miliauskaite Acg
Legal Counsel & Assistant Company SecretaryTeam

5 more people are available in the full profile.

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IPO & Listings of Diploma

Diploma is a publicly listed company on the LSE with ticker symbol DPLM in UK, operating in the Distribution services sector. As a publicly traded entity, the company provides investors with opportunities to participate in its growth story through equity ownership. The listing enables access to capital markets, enhances corporate visibility, and provides liquidity for shareholders while maintaining transparency through regulatory compliance and regular financial disclosures.

  • IPO date12 Jun 1960
  • Listed onLSE: DPLM
  • Listed entityDiploma PLC
  • Exchange sectorDistribution services
  • ISINGB0001826634
  • Share price7,785.00 GBX (+0.45% on the day) · 2026-10-09
  • Market capitalisation10,439,283,761.00 GBX
  • Price to earnings55.3
  • EPS (diluted, trailing year)1.41 GBX
  • Dividend yield0.81%
  • Volume (last session)374,555

Financials of Diploma

Exchange-reported annual figures
YearRevenueNet incomeEBITDA
20251.52B GBP184.9M GBP402.9M GBP
20241.36B GBP129.3M GBP317.2M GBP
20231.20B GBP117.7M GBP264.8M GBP
20221.01B GBP94.7M GBP211.1M GBP
2021787.4M GBP69.8M GBP149.1M GBP
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Detailed financial statements for Diploma

Statement rows, ratios, five-year trends and downloadable financials of the group companies require an active premium plan.

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Investments & Acquisitions by Diploma

Diploma has strategically engaged in corporate development activities, having acquired 16 companies. Notable acquisitions include Cablecraft, DICSA and Edcoseal.

Acquisitions
Company NameDescriptionDomainLocationFoundedAcquiredAmount
Rubber, plastic, and insulation products are manufactured and supplied.
par-group.co.ukPreston, United Kingdom1980May 2024$47.47M
Aerospace engineering and inventory management services are provided.
pafcorp.comFarmingdale, United States1952Mar 2024β€’β€’β€’β€’
Stainless steel fittings are manufactured for industrial applications.
dicsaes.comZaragoza, Spain1983Jul 2023$220.4M
Electronic repair services are provided for industrial equipment.
tieindustrial.comLa Vergne, United States1992Mar 2023$91.96M
Industrial hoses, couplings, hydraulic components, and seals are manufactured.
rgfluidpower.comPreston, United Kingdom2016Apr 2022$130.25M
Industrial adhesives, sealants, tapes, and dispensing equipment are distributed.
techsil.co.uk–1989Nov 2021β€’β€’β€’β€’
Bi-clamp knives, choledochoscopes, and lifting fluids are manufactured by Kungshusen.
kungshusen.seMariefred, Sweden1977Sep 2021β€’β€’β€’β€’
Provider of medical and hospital equipment solutions
sw.dkVallensbaek, Denmark1817Jan 2021β€’β€’β€’β€’
Cables and field system solutions are supplied for industrial applications.
smartwire.comBolingbrook, United States1994Sep 2020$459.24M
Sealing solutions are supplied to industrial sectors by DMR Seals.
dmrseals.co.ukSheffield, United Kingdom2013Sep 2019$8.6M
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Acquired stakes, deal sources and the complete acquisition history require an active premium plan.

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Timeline of Diploma

12 dated milestones of Diploma across 93 years, from founding to its latest funding, stage changes and deals.

  1. Founded Diploma is founded.
  2. IPO Lists on the stock exchange (IPO).
  3. Acquisition Acquires M Seals.
  4. Acquisition Acquires Windy City Wire.
  5. Acquisition Acquires Simonsen & Weel.
  6. Acquisition Acquires Kungshusen.
  7. Acquisition Acquires Techsil.
  8. Acquisition Acquires R&G Fluid Power Group.
  9. Acquisition Acquires TIE Industrial.
  10. Acquisition Acquires DICSA.
  11. Acquisition Acquires Peerless Aerospace Fastener.
  12. Acquisition Acquires PAR Group.

Web traffic of Diploma

The website of Diploma (diplomaplc.com) receives about 15K visits a month.

  • Monthly visits
    15K

    ▲ 25.8% vs previous month

Latest news on Diploma

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Frequently Asked Questions about Diploma

Diploma was founded in 1931.

Diploma is headquartered in London, United Kingdom. It is registered at London, England, United Kingdom.

Diploma has 3,600 employees.

Annual revenue of Diploma is $2.04B as on Sep 30, 2025.

Diploma was founded in 1931 and is based in London, United Kingdom. Operations are conducted as a value-add distributor in multiple sectors, where specialized products and services are supplied. A decentralized model is used to enable quick adaptations to market needs and sustain close client connections. Organic growth is supported by scalable, quality-focused businesses. Value-added solutions are delivered through the network to increase operational efficiency for customers.

Diploma offers Value-Add Distribution and Sustainability Solutions.

Yes, Diploma is publicly traded on LSE under the ticker symbol DPLM.

Diploma has made 16 acquisitions, including Cablecraft, DICSA, and Edcoseal.

Diploma operates through Diploma Plc.

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