SDI GROUP PLC

🌳Matureactive
06385396 · plc · incorporated 2007-09-28
Investment thesis
Looks cheap but ownership + security both unclear — probable value trap.
Why interesting: Headline metrics may be attractive.
Why risky: No PSC visibility combined with multiple live charges; transacting likely slow and expensive.
🔒Estimated value
Upgrade to see
Turnover
not disclosed
Net worth
book net assets
Opportunity
76/100
Strong
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What this business does
Primary activity: Activities of head offices
Sector: Professional, scientific & technical
Investor take
Pursue
Active trading company with a 77-year-old founder — textbook succession opportunity.

Opportunity 76/100 (strong), bankability 57/100. Strong seller-intent signal (63/100, director aged 77). Share purchase looks the cleaner deal structure. Biggest value-creation lever: Consolidate lender relationships. 3 distinct lenders creates friction — refinance into single-lender structure for cleaner diligence. Most likely exit: share sale to pe / searcher (65/100).

🏦

Refinance opportunity

8 live charges · 3 lenders · oldest 12.3y

35/100
too messy

Refinance path is blocked by complexity. Rethink structure or expect bespoke, expensive terms.

  • · Oldest live charge is 12.3 years old — likely at or near maturity.
  • · 3 lenders named — inter-creditor friction likely.
  • · Legal-friction score 30/100 — workable, but lender will want more DD.

Data confidence

Overall: low (53/100)

Sparse data coverage. Treat AI-generated outputs as preliminary. Manual diligence essential.

Company profile
address, 1 SIC codes, incorporation date
100
Financials
No iXBRL financials extracted
0
Lenders & charges
8 charges (8/8 with lender, 8/8 with type)
90
Directors & officers
22 officers (7 active, 22 linked, 15 with DOB)
84
Ownership & PSC
No PSCs filed (unusual — worth investigating)
35
Director network
24 connected companies via shared directors
90
Filing history
153 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
76/100Strong
PassWatchWorth a lookStrongExceptional 

Solid opportunity signal. Worth a dedicated memo and management meeting.

Business quality
60
Adequate — check latest filings for context.
Acquirability
85
Strong succession / seller-readiness signals.
Risk profile
74
Few red flags.
Signal strength
100
Good data coverage for analysis.

Recent activity

Last 30 days
0
filings
Last 90 days
1
filing
  • 1 mortgage
Last 180 days
1
filing
  • 1 mortgage
Counts from Companies House filing history.
Corporate timeline (69 events)Click to expand
  1. 2026-04-30
    📄
    mortgage-create-with-deed-with-charge-number-charge-creation-date
    mortgage · MR01
  2. 2026-04-29
    🔒
    Charge registered #8
    Lender: Hsbc UK Bank PLC
  3. 2025-12-01
    📄
    mortgage-create-with-deed-with-charge-number-charge-creation-date
    mortgage · MR01
  4. 2025-12-01
    📄
    mortgage-create-with-deed-with-charge-number-charge-creation-date
    mortgage · MR01
  5. 2025-11-27
    🔒
    Charge registered #7
    Lender: Hsbc UK Bank PLC
  6. 2025-11-27
    🔒
    Charge registered #6
    Lender: Hsbc UK Bank PLC
  7. 2025-10-02
    📄
    capital-allotment-shares
    capital · SH01
  8. 2025-09-29
    📄
    accounts-with-accounts-type-group
    accounts · AA
  9. 2025-09-29
    📄
    resolution
    resolution · RESOLUTIONS
  10. 2025-04-17
    📄
    change-person-director-company-with-change-date
    officers · CH01
  11. 2025-02-05
    📄
    change-person-director-company-with-change-date
    officers · CH01
  12. 2025-01-31
    📄
    mortgage-create-with-deed-with-charge-number-charge-creation-date
    mortgage · MR01
  13. 2025-01-20
    🔒
    Charge registered #5
    Lender: Hsbc UK Bank PLC
  14. 2024-10-11
    📄
    accounts-with-accounts-type-group
    accounts · AA
  15. 2024-10-04
    📄
    resolution
    resolution · RESOLUTIONS
  16. 2024-10-01
    📄
    capital-allotment-shares
    capital · SH01
  17. 2024-01-22
    📄
    termination-director-company-with-name-termination-date
    officers · TM01
  18. 2024-01-19
    CREEDON, Michael John resigned
    director
  19. 2023-11-10
    📄
    capital-allotment-shares
    capital · SH01
  20. 2023-10-18
    📄
    accounts-with-accounts-type-group
    accounts · AA
  21. 2023-10-03
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  22. 2023-09-29
    BROWN, Stephen Mark appointed
    director
  23. 2023-04-27
    📄
    capital-allotment-shares
    capital · SH01
  24. 2023-02-13
    📄
    capital-allotment-shares
    capital · SH01
  25. 2023-02-01
    EARLY, Louise Elizabeth appointed
    director
  26. 2023-02-01
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  27. 2023-01-11
    📄
    capital-allotment-shares
    capital · SH01
  28. 2022-12-23
    📄
    capital-allotment-shares
    capital · SH01
  29. 2022-11-22
    📄
    capital-allotment-shares
    capital · SH01
  30. 2022-09-21
    SHARMA, Amitabh appointed
    secretary
  31. 2022-09-21
    ABELL, Jonathan Paul resigned
    secretary
  32. 2022-09-21
    ABELL, Jonathan Paul resigned
    director
  33. 2022-08-08
    HOSTY, Andrew Joseph, Dr appointed
    director
  34. 2022-08-08
    SHARMA, Amitabh appointed
    director
  35. 2022-08-08
    NAPPER, Isabel resigned
    director
  36. 2021-11-01
    🔒
    Charge registered #4
    Lender: Hsbc UK Bank PLC
  37. 2019-11-29
    🔒
    Charge registered #3
    Lender: Hsbc UK Bank PLC
  38. 2018-07-27
    ABELL, Jonathan Paul appointed
    secretary
  39. 2018-07-27
    CREEDON, Michael John resigned
    secretary
  40. 2018-07-02
    ABELL, Jonathan Paul appointed
    director
  41. 2018-04-04
    🔓
    Charge satisfied #1
  42. 2018-04-03
    🔒
    Charge registered #2
    Lender: Hsbc Bank PLC
  43. 2017-09-27
    SIMON, Ann Juliet Bateman, Dr resigned
    director
  44. 2017-07-26
    TILSTON, David Frank appointed
    director
  45. 2017-04-30
    GIBBS, Jeremy Stephen resigned
    director
  46. 2017-02-21
    NAPPER, Isabel appointed
    director
  47. 2014-02-12
    🔒
    Charge registered #1
    Lender: National Westminster Bank PLC
  48. 2012-09-11
    TEE, Henry Leonard resigned
    director
  49. 2011-08-31
    ATKIN, Philip resigned
    director
  50. 2010-06-23
    CREEDON, Michael John appointed
    secretary
Showing most recent 50 of 69 events

Owner dependency

65/100
High — earn-out structure required

Material founder dependency. Consider a 2-3 year earn-out and build in a handover plan before completion.

FACTORS
  • -6 active directors: Broader management team in place — suggests transferable governance.
  • +Long-tenure founder: Senior director has been in place 16 years — deep operational knowledge concentrated in one person.
  • +Founder age: Director aged approximately 77 — succession pressure is live.

Succession & seller-readiness

73/100
Strong succession signal

Multiple signals suggest succession is on the horizon. Candidate for proactive outreach.

SIGNALS
  • primaryFounder aged 70+: Senior director is approximately 77 years old. Natural succession window is now.
  • secondary12+ year tenure: Director in role 16 years.
  • supportingClean filings + long tenure: Disciplined long-tenure operator — classic lifestyle-business pattern that often sells quietly.

Red flags

1 med · 1 low
3 new charges in last 12 months
medium

Heavy recent charge activity can indicate refinancing pressure, aggressive leverage, or multiple lender rotation.

Evidence: 2026-04-29: A registered charge; 2025-11-27: A registered charge; 2025-11-27: A registered charge

7 live charges
low

Heavily leveraged with multiple live security positions — understand the capital structure before proceeding.

🔒Co-director network graph

Radial SVG graph showing every company connected via shared directors, colour-coded by status.

Available from the Pro tier upwards.

See pricing →

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Peers ranked by estimated value, then turnover, then opportunity score.See all →
🔒Tailored diligence questions

9 specific questions generated from this company's actual signals — liquidity, leverage, director age, charge count, red flags, age-of-company.

Available from the Pro tier upwards.

See pricing →
🔒Advanced scoring suite

Exit-route ranking, improvement thesis, quiet-distress detector, covenant-pressure proxy, extraction monitor, approaching triggers, ownership drift, local cluster, value trap, debt capacity, archetype classification — 48+ scoring modules.

Available from the Pro tier upwards.

See pricing →

Company details

Statusactive
Typeplc
Incorporated2007-09-28
Jurisdictionengland-wales
Primary SIC70100 — Activities of head offices

Registered office

Beacon House
Nuffield Road
Cambridge
Cambs
CB4 1TF

Filing status

Accounts
Next due: 2026-10-31
Last made up to: 2025-04-30
Confirmation statement
Next due: 2026-11-24
Last: 2025-11-10

Officers (7 active · 15 resigned)

SHARMA, Amitabh
secretary · appointed 2022-09-21
View their other companies + combined net worth →
Active
BROWN, Stephen Mark
director · ~53y · appointed 2023-09-29
View their other companies + combined net worth →
Active
EARLY, Louise Elizabeth
director · ~51y · appointed 2023-02-01
View their other companies + combined net worth →
Active
FORD, Eric Kenelm
director · ~77y · appointed 2010-03-16
View their other companies + combined net worth →
Active
HOSTY, Andrew Joseph, Dr
director · ~61y · appointed 2022-08-08
View their other companies + combined net worth →
Active
SHARMA, Amitabh
director · ~59y · appointed 2022-08-08
View their other companies + combined net worth →
Active
TILSTON, David Frank
director · ~69y · appointed 2017-07-26
View their other companies + combined net worth →
Active
ABELL, Jonathan Paul
secretary · appointed 2018-07-27 · resigned 2022-09-21
Resigned
CREEDON, Michael John
secretary · appointed 2010-06-23 · resigned 2018-07-27
Resigned
HOUGH, Clare
secretary · appointed 2007-11-09 · resigned 2010-06-22
Resigned
LUDGATE SECRETARIAL SERVICES LTD
corporate-secretary · appointed 2007-09-28 · resigned 2008-01-14
Resigned
ABELL, Jonathan Paul
director · ~65y · appointed 2018-07-02 · resigned 2022-09-21
Resigned
ATKIN, Philip
director · ~67y · appointed 2007-11-09 · resigned 2011-08-31
Resigned
CREEDON, Michael John
director · ~66y · appointed 2010-05-24 · resigned 2024-01-19
Resigned
GIBBS, Jeremy Stephen
director · ~69y · appointed 2007-11-09 · resigned 2017-04-30
Resigned
HOWARD, Ronald John Frederick
director · ~105y · appointed 2007-11-09 · resigned 2008-11-28
Resigned
NAPPER, Isabel
director · ~68y · appointed 2017-02-21 · resigned 2022-08-08
Resigned
SIMON, Ann Juliet Bateman, Dr
director · ~73y · appointed 2010-03-16 · resigned 2017-09-27
Resigned
TEE, Henry Leonard
director · ~81y · appointed 2008-06-27 · resigned 2012-09-11
Resigned
VAISEY, Alfred John
director · ~73y · appointed 2008-08-22 · resigned 2010-03-25
Resigned

Click a director name to see their full track record across all companies.

Mortgages & charges

8
Total charges
7
Outstanding
1
Active lenders
Status:Lender:8 of 8 shown
TypeProperties
outstanding
HSBC
Hsbc UK Bank PLC
A registered charge29/04/2026
outstanding
HSBC
Hsbc UK Bank PLC
A registered charge27/11/2025
outstanding
HSBC
Hsbc UK Bank PLC
A registered charge27/11/2025
outstanding
HSBC
Hsbc UK Bank PLC
A registered charge1 property20/01/2025
outstanding
HSBC
Hsbc UK Bank PLC
A registered charge01/11/2021
outstanding
HSBC
Hsbc UK Bank PLC
A registered charge1 property29/11/2019
outstanding
HSBC
Hsbc Bank PLC
A registered charge03/04/2018
satisfied
National Westminster Bank
National Westminster Bank PLC
A registered charge1 property12/02/201404/04/2018
Click column headers to sort. Use filters above to narrow by status and lender.

Recent filings (153 total)

mortgage-create-with-deed-with-charge-number-charge-creation-date
mortgage · MR01
2026-04-30
mortgage-create-with-deed-with-charge-number-charge-creation-date
mortgage · MR01
2025-12-01
mortgage-create-with-deed-with-charge-number-charge-creation-date
mortgage · MR01
2025-12-01
confirmation-statement-with-updates
confirmation-statement · CS01
2025-11-18
capital-allotment-shares
capital · SH01
2025-10-02
accounts-with-accounts-type-group
accounts · AA
2025-09-29
resolution
resolution · RESOLUTIONS
2025-09-29
change-person-director-company-with-change-date
officers · CH01
2025-04-17
change-person-director-company-with-change-date
officers · CH01
2025-02-05
mortgage-create-with-deed-with-charge-number-charge-creation-date
mortgage · MR01
2025-01-31
confirmation-statement-with-no-updates
confirmation-statement · CS01
2024-11-20
accounts-with-accounts-type-group
accounts · AA
2024-10-11
resolution
resolution · RESOLUTIONS
2024-10-04
capital-allotment-shares
capital · SH01
2024-10-01
termination-director-company-with-name-termination-date
officers · TM01
2024-01-22