The Accounts UK companies data PSC snapshot 2026-06-10
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UK-visible control · private-equity firm

3i Group

UK companies whose ownership chain resolves to 3i Group, via 9 matched control vehicles. Two views: every company where the firm is a significant-control PSC, and the narrower set it majority-controls.

3i Group is a London-based investment company focused on private equity and infrastructure. It was founded in 1945 and invests in mid-market companies in Europe and North America, with a focus on sectors such as consumer, healthcare, industrial technology, services and software. As of 31 March 2024, it reported total assets under management of £34.7bn.

External profile · [1] [2] [3] [4]

Majority control

≥50% shares/votes or board control

£154m

turnover · full accounts of controlled companies

Companies
80
Employees
0
PBT
£6m

All disclosed control

incl. minority (≥25%) PSC stakes

£871m

turnover · 212 companies

Employees
1,933
With accounts
32 (15%)

Control structure

Majority control · top platforms by turnover · 80 companies controlled in total

Platforms are the firm's accounts-filing holdings; figures are their (consolidated) turnover. Subsidiaries beneath them are already inside that total — shown for structure, not added again.

Largest UK holdings (2026)

Majority control · by turnover · 16 have filed accounts

Company PSC control Turnover PBT Emp.
3I PLC controlled directly · every link ≥75% 75–100% £146m £6m —
3I GP 2016 LIMITED controlled directly · every link ≥75% 75–100% £8m £417,152 —
3I INTERNATIONAL SERVICES PLC controlled directly · every link ≥75% 75–100% £19,790 £4,757 —
3I GP 2010 LIMITED controlled directly · every link ≥75% 75–100% £17,247 £3,123 —
IIF SLP GP LIMITED controlled directly · every link ≥75% 75–100% £13,771 £1,122 0
GP 2013 LTD controlled directly · every link ≥75% 75–100% £4,312 £303 —
GP 2016 LIMITED controlled directly · every link ≥75% 75–100% £3,449 £208 0
3I GP 2013 LTD controlled directly · every link ≥75% 75–100% £389 £1,331 0

How this is built — and its limits

  • Control, not ownership. PSC filings disclose significant control (≥25% shares/votes, board rights, significant influence) — not economic ownership. We never assert a cap table.
  • "PSC control" is a band, not an exact stake. Companies House discloses control only in ranges (25–50%, 50–75%, 75–100%), and we show the stronger of the share or voting band on the holding's nearest disclosed edge — the firm's own stake for directly-held companies, the immediate intermediate's for those held through a chain. A band below 50% (or a blank —) here means control rests on board-appointment rights or significant influence rather than a majority shareholding — common in PE structures.
  • Every holding is chain-verified. The line under each company ("controlled via N hops · every link ≥X%") is the shortest PSC control chain we found from 3i Group's vehicles down to it — each hop a real public ownership disclosure. Where a company is also controlled by another tracked firm, that's flagged inline.
  • Full accounts, not apportioned. A controlled company's figures are counted in full, not scaled by stake. A jointly-controlled asset counts fully under each controller.
  • No double-counting. Where a consolidated parent and its subsidiaries both file, only the topmost is counted.
  • Coverage is a floor. Only 16 of 80 majority-controlled companies file detailed accounts in our enriched set, so totals understate the true portfolio.
  • UK-visible only. Chains that exit to Jersey, Guernsey or other registries terminate there — we can't follow beyond the UK.