Majority control
≥50% shares/votes or board control
£4.2bn
turnover · full accounts of controlled companies
- Companies
- 484
- Employees
- 11,903
- PBT
- £375m
UK-visible control · private-equity firm
KKR
UK companies whose Companies House control chain resolves to KKR, via 29 matched control vehicles. Two views: every company where the firm is a significant-control PSC, and the narrower set it majority-controls.
KKR is a US-headquartered global alternative investment firm, founded in 1976 and based in New York. It invests across private equity, private credit, infrastructure, real estate and capital markets, and also has an insurance business through Global Atlantic. Public sources say it had about US$758 billion of assets under management as of March 2026.
All disclosed control
incl. minority (≥25%) PSC stakes
£6.0bn
turnover · 763 companies
- Employees
- 15,244
- With accounts
- 130 (17%)
Control structure
Majority control · top platforms by turnover · 484 companies controlled in total
- KKR
- 75–100% TRAVELOPIA GROUP HOLDINGS LIMITED £810m · 3,150 staff
- 75–100% TIM MIDCO LIMITED
- 75–100% TRAVELOPIA ADVENTURE LIMITED
- 75–100% VIRIDOR ENERGY (INVESTMENTS ONE) LIMITED £575m · 631 staff
- 75–100% MARELLI AUTOMOTIVE SYSTEMS UK LIMITED £529m · 1,257 staff
- 75–100% MARELLI AUTOMOTIVE SYSTEMS EUROPE PLC £529m · 1,257 staff
- 75–100% NEWDAY CARDS LTD £402m · 852 staff
- 75–100% NEWDAY LTD
- +4 more controlled
- 75–100% JEMELLA LIMITED £226m · 358 staff
- 75–100% SMART METERING SYSTEMS LIMITED £199m · 1,114 staff
- 75–100% SMS METER ASSETS LIMITED
- 75–100% CH4 GAS UTILITY AND MAINTENANCE SERVICES LIMITED
- 75–100% SMS ENERGY SERVICES LIMITED
- 75–100% SMS CORPORATE SERVICES LIMITED
- +27 more controlled
- 75–100% WELLA UK LTD £160m · 325 staff
- 75–100% OODLE FINANCIAL SERVICES LIMITED £110m · 399 staff
- +4 more controlled
- 75–100% BMC SOFTWARE LIMITED £92m · 330 staff
- +2 more controlled
- 50–75% CATALYST HEALTHCARE (ROMFORD) HOLDINGS LIMITED £89m
- 75–100% SMA TOPCO LIMITED £78m · 10 staff
- +1 more controlled
- 75–100% NEWDAY TECHNOLOGY LTD £77m · 380 staff
- 75–100% THE STEPSTONE GROUP UK LTD £75m · 404 staff
- +1 more controlled
- 75–100% TRAVELOPIA GROUP HOLDINGS LIMITED £810m · 3,150 staff
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 · 92 have filed accounts
| Company | PSC control | Turnover | PBT | Emp. |
|---|---|---|---|---|
| TRAVELOPIA GROUP HOLDINGS LIMITED controlled directly · every link ≥75% | 75–100% | £810m | £-55m | 3,150 |
| VIRIDOR ENERGY (INVESTMENTS ONE) LIMITED controlled via 6 hops · every link ≥50% | 75–100% | £575m | £200m | 631 |
| MARELLI AUTOMOTIVE SYSTEMS UK LIMITED controlled directly · every link ≥75% | 75–100% | £529m | £-8m | 1,257 |
| MARELLI AUTOMOTIVE SYSTEMS EUROPE PLC controlled directly · every link ≥75% | 75–100% | £529m | £-11m | 1,257 |
| NEWDAY CARDS LTD controlled via 5 hops · every link ≥50% | 75–100% | £402m | £136m | 852 |
| JEMELLA LIMITED controlled via 7 hops · every link ≥75% | 75–100% | £226m | £61m | 358 |
| SMART METERING SYSTEMS LIMITED controlled via 4 hops · every link ≥75% | 75–100% | £199m | £-7m | 1,114 |
| WELLA UK LTD controlled via 6 hops · every link ≥75% | 75–100% | £160m | £2m | 325 |
| OODLE FINANCIAL SERVICES LIMITED controlled directly · every link ≥75% | 75–100% | £110m | £-38m | 399 |
| BMC SOFTWARE LIMITED controlled directly · every link ≥75% | 75–100% | £92m | £7m | 330 |
| CATALYST HEALTHCARE (ROMFORD) HOLDINGS LIMITED controlled via 6 hops · every link ≥50% | 50–75% | £89m | £9m | — |
| SMA TOPCO LIMITED controlled via 3 hops · every link ≥75% | 75–100% | £78m | £-73m | 10 |
| NEWDAY TECHNOLOGY LTD controlled via 5 hops · every link ≥50% | 75–100% | £77m | £-36m | 380 |
| THE STEPSTONE GROUP UK LTD controlled via 2 hops · every link ≥50% | 75–100% | £75m | £-2m | 404 |
| SALISBURY TOPCO LIMITED controlled via 3 hops · every link ≥75% | 75–100% | £60m | £3m | 35 |
| LOGISTEED UK LIMITED controlled directly · every link ≥75% | 75–100% | £57m | £2m | 1,093 |
| THE HOSPITAL COMPANY (OXFORD JOHN RADCLIFFE) HOLDINGS LIMITED controlled via 6 hops · every link ≥75% | 75–100% | £46m | £4m | 0 |
| NESS GLOBAL SERVICES LIMITED controlled directly · every link ≥75% | — | £40m | £-2m | 13 |
| KOHLBERG KRAVIS ROBERTS & CO. LTD controlled directly · every link ≥75% | 75–100% | £28m | £27m | 0 |
| NIMBUS UK BIDCO LIMITED controlled directly · every link ≥75% | 75–100% | £19m | £19m | 0 |
| EDUCATION 4 AYRSHIRE (HOLDINGS) LIMITED controlled via 6 hops · every link ≥75% | 75–100% | £10m | £1m | — |
| KOKI GROUP UK LIMITED controlled directly · every link ≥75% | 75–100% | £10m | £-850,775 | 20 |
| INDUSTRIAL PHYSICS PRODUCT INTEGRITY LIMITED controlled directly · every link ≥75% | 75–100% | £9m | £-2m | 54 |
| HIKOKI POWER TOOLS (U.K.) LIMITED controlled directly · every link ≥75% | 75–100% | £8m | £205,328 | 12 |
| ERM CERTIFICATION AND VERIFICATION SERVICES LIMITED controlled via 8 hops · every link ≥50% | 75–100% | £6m | £760,377 | 38 |
| AUTOMOTIVE LIGHTING UK LIMITED controlled directly · every link ≥75% | 75–100% | £831,000 | £-1m | 4 |
| WEBMD UK LIMITED controlled directly · every link ≥50% | 50–75% | £62,550 | £3m | 157 |
| FLORA FOOD HOLDING UK LIMITED controlled directly · every link ≥75% | 75–100% | £29,000 | £131m | 0 |
| GREENVOLT ENERGIAS RENOVAVEIS HOLDCO LIMITED controlled directly · every link ≥75% | 75–100% | — | £10m | 5 |
| Q-PARK UK LIMITED controlled directly · every link ≥75% | — | — | — | 2 |
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 KKR's vehicles down to it — each hop a real Companies House 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 92 of 484 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.