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Company

AIR Diffusion Limited

AIR Diffusion Limited is an active UK company (number 01137995), incorporated 1973, with 3 current directors including Andreas Orje Wellstam and Christian Olin. Source: Companies House, updated 4th October 2026.

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Official record Companies House · updated 4th October 2026 · Sources

Network

The large node is AIR Diffusion Limited. Red nodes are organisations, white nodes are people. Sign in free to explore further.

Who leads it

Previous officers 36

  1. Hannu Saastamoinen 2016-2020 Director View profile
  2. Andreas ÖRje Wellstam 2016-2018 Director View profile
  3. Roubi, Patrick François, Director 2016-2016 Director View profile
  4. DE Waele, Jean-Philippe, Director 2016-2016 Director View profile
  5. Brian John Stief 2014-2016 Director View profile
  6. Frank Voltolina 2014-2016 Director View profile
  7. Brian Cadwallader 2014-2016 Director View profile
  8. Robert Bruce Mcdonald 2014-2014 Director View profile
  9. Thomas C. Reeve 2011-2012 Director View profile
  10. Nicolas Paul Wilkinson 2011-2012 Director View profile
  11. Michael John Hopster 2011-2011 Director View profile
  12. Paul Edward Flanagan 2007-2011 Director View profile
  13. Norman Charles Porter 2002-2007 Director View profile
  14. Richard Norman Marchant 2000-2002 Director View profile
  15. Thomas Robert Edwards 2000-2016 Director View profile
  16. Manoj Kumar Shah 2000-2014 Director View profile
  17. William Edward Kiekel 2000-2000 Director View profile
  18. John Keith Acornley 1998-2000 Director View profile
  19. Christopher John Droogan 1998-2000 Director View profile
  20. William Jack Clark 1995-2000 Director View profile
  21. Michael Routledge 1995-1995 Director View profile
  22. Alan Martin Oliver 1995-1996 Director View profile
  23. Neil George Luke 1994-1995 Director View profile
  24. Bryan Mark Gray 1994-2000 Director View profile
  25. Johnathon Margill 1994 Director View profile
  26. James William Chambers 1994 Director View profile
  27. Terence Stanley Bullock 1994 Director View profile
  28. Robert John Magill 1994 Director View profile
  29. Shaun Magill 1994 Director View profile
  30. Elizabeth Honor Lewzey 2011-2012 Secretary View profile
  31. Denise Patricia Burton 2000-2011 Secretary View profile
  32. Peter Jeffrey Rothwell 1997-2000 Secretary View profile
  33. Alan Philip Hardman 1997-1997 Secretary View profile
  34. Terence David Foreman 1995-1996 Secretary View profile
  35. Laurence King 1994-1997 Secretary View profile
  36. Huw Daniel Reynolds 1995 Secretary View profile

Directors and secretaries as filed at Companies House.

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About

Incorporated
04/10/1973

Ownership

Owned by (1) iOwned byIndividuals and companies registered as having significant control over this company, from the Companies House PSC (persons with significant control) register. People whose ownership could not be confirmed to one individual are not listed as confirmed owners.

Group

  1. AIR Diffusion Limited is controlled by Swegon AIR Management Limited
    Evidence
    active 75-100% shares · notified 2016-10-01 · source: Companies House PSC register
  2. Swegon AIR Management Limited is controlled by Swegon Limited
    Evidence
    active 75-100% shares · notified 2016-09-30 · source: Companies House PSC register

Ultimately controlled by Swegon Limited.

5 other companies in this group

Ownership paths are calculated from Companies House persons-with-significant-control filings. Each step shows the filed nature of control and dates; a step marked "ceased" is historical, not current.

Board analysis

Board DNA

How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.

3 directors on the board

8.5y median 7.6y
average tenure
11.9y
longest tenure

Directors past 6 years

First-time vs portfolio directors

First-time (1)

Portfolio (2)

0
also govern a charity
0
left in the last 12 months

Where else this board sits iWhere else this board sitsThe charitable fields these directors govern in elsewhere, by Charity Commission classification. Excludes this company and any charity it is the legal face of.

Manufacturing 4Professional services 3Construction 1Retail and trade 1

The sectors these directors govern in elsewhere. This company, and any charity it is the legal face of, are excluded - counting them would just tell you what you are already looking at.

Gaps to watch

  • Several long-serving directors could step down together

Where to look Suggested search: succession planning for long-tenured seats.

Sources

Official record from Companies House. Governance Register calculates the connections.

Record details
Company number
01137995
Status
Active
Type
Private Limited Company
Edition
Register edition compiled 4th October 2026
Labels
Official record from Companies House · Calculated derived by Governance Register.

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