UK companies whose Companies House control chain resolves to Hg,
via 24 matched control vehicles. Two views: every company
where the firm is a significant-control PSC, and the narrower set it
majority-controls.
Hg is a London-based private equity firm founded in 2000, originating from Mercury Asset Management. It focuses on software and services businesses in Europe and North America, with a strategy centred on buyouts and long-term operational support; it reports around $110 billion in assets under management.
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 · 5 have filed accounts
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 Hg'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 5 of
105 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.