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Company · London

Aquamain Holdings Limited

Activities of other holding companies n.e.c.

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Official record Companies House · updated 27th September 2026 · Sources

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

Who leads it

Previous officers 1

  1. Daniel Stephen O'Neill 2018-2022 Director View profile

Directors and secretaries as filed at Companies House.

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About

What it does
Activities of other holding companies n.e.c.
Incorporated
22/01/2018
Registered office
London
Previous names
Stone Midco Limited (until 21/05/2024)

Ownership

Owned by (2) 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.

  • Stone Topco Limited ceased 2024-06-22
    75-100% shares, 75-100% voting, appoints directors · notified 2018-01-22
  • Grovepoint Limited ceased 2024-11-29
    25-50% shares, 25-50% voting, appoints directors · notified 2024-06-07

Group

  1. Aquamain Holdings Limited is controlled by Stone Topco Limited
    Evidence
    ceased 75-100% shares, 75-100% voting, appoints directors · notified 2018-01-22, ceased 2024-06-22 · source: Companies House PSC register
  2. Stone Topco Limited is controlled by OC420749
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2018-01-22 · source: Companies House PSC register
  3. OC420749 is controlled by Rubicon Partners 2 LLP
    Evidence
    active 25-50% voting (LLP), 25-50% surplus assets (LLP) · notified 2018-01-22 · source: Companies House PSC register

Ultimately controlled by Rubicon Partners 2 LLP.

22 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

7y median 8.5y
average tenure
8.5y
longest tenure

Directors past 6 years

First-time vs portfolio directors

Portfolio (3)

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.

Finance 16Professional services 16Manufacturing 7Business services 1Construction 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
11163899
Status
Active
Type
Private Limited Company
Accounts next due
30/09/2027
Edition
Register edition compiled 27th September 2026
Labels
Official record from Companies House · Calculated derived by Governance Register.

Contains public sector information licensed under the Open Government Licence v3.0. Report an issue · How we handle data