Skip to content
CompanySight
Company No. 15726438 · Incorporated 17 May 2024

Rock Bidco Limited

Registered name: ROCK BIDCO LIMITED

Part of Sony Group Corporation group

Rock Bidco Limited made £26.8m revenue and £44.6m profit in the year to 30 Jun 2025. read from filing text

Rock Bidco Limited’s revenue was £26.8m in the year to 30 Jun 2025, with £44.6m profit and 0 employees. The company is classified under “activities of other holding companies” and is based in London.

Full P&L filedSection K · Financial and insurance activitiesSIC 64209Activities of other holding companies n.e.c.
Status
Active
Location
London, London
Age
2 yrs · since 2024
Type
Private Limited Company

Pass-through vehicle. This looks like a holding, staffing or umbrella company. Its revenue and profit may largely pass through to or from other entities, so the figures may not reflect a standalone operating business. It is excluded from our opportunity lists.

Part of a group. The filing indicates this company sits within a group structure, so its results may depend on intra-group trading and it may be hard to replicate independently. From the filing: “The company's immediate parent company is SMG-One LLC, a company incorporated in the United States of America. The ultimate parent undertaking and controlling party is Sony Group Corporation, which is”

Latest accounts · year to 30 Jun 2025

Key figures

Small teamYoung and profitable
Revenue
£26.8m
Growth —
Profit
£44.6m
Growth —
Profit margin
166.7%
 
Employees
0
Change —
Profit / employee
—
 
Profitable streak
1yr
Consecutive profitable years in our data

Unusual figures. Profit is higher than revenue in this filing. That usually means investment income, dividends from subsidiaries or one-off gains — or a mis-tagged figure. Check the original filing before drawing conclusions.

Badges are automated estimates derived from the filed figures — not statements of fact about the company.

1 filed year

Financial history

Multi-year financials, oldest to newest
Year to30 Jun 2025
DisclosureFull P&Lread from filing text
Profit & loss
Revenue (turnover)£26.8m
Operating profit£15.7m
Profit before tax£48.8m
Profit after tax£44.6m
Profit (best available)£44.6m
Employees (average)0
Ratios
Profit margin166.7%
Balance sheet — indirect signals, not revenue
Net assets£1.1bn
Fixed assets£1.1bn
Debtors£7.9m
Deferred income£387k
SourceFullAccounts · bulk data Jul 2026
Derived from the latest filing

How the business works

Profit margin
166.7%
Profit ÷ revenue.
Gross margin
—
Gross profit ÷ revenue. High for software and services.
Revenue per employee
—
Revenue ÷ average employees.
Profit per employee
—
Profit ÷ average employees.
Cash conversion
—
Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue
3964%
Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue
1.5%
Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue
29.3%
Money owed by customers. Low = customers pay quickly.
Indirect — not revenue

Balance-sheet signals

Year-on-year changes in filed balance-sheet items. They can hint at momentum (or investment) but are not revenue or profit and must not be read as such.

Net assets
—
Now £1.1bn
Cash at bank
—
Now —
Headcount
—
Now 0
Deferred income
—
Now £387k
Fixed assets
—
Now £1.1bn

Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal only.

Corporate ownership

Group structure

Ownership chain

  1. Sony Group Corporation (registered outside the UK register)ultimate parent50–75%
  2. Rock Bidco Limitedthis company

Bands show the share of ownership each company holds in the one below it.

Subsidiaries (7)

From the Persons with Significant Control register (corporate controllers only).

Sources

Latest figures from FullAccounts for the year to 30 Jun 2025 (profit £44.6m), from the Companies House accounts bulk data published Jul 2026. Spotted an error? Request a correction.

Contains public sector information from Companies House licensed under the Open Government Licence v3.0. Data from Companies House, © Crown copyright. View the licence.