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Company No. 15436415 · Incorporated 23 Jan 2024

Mainprize Midco Limited

Registered name: MAINPRIZE MIDCO LIMITED

Part of Project Summer Topco Limited group

Mainprize Midco Limited made £0 revenue and £3.7m profit in the year to 31 Mar 2025.

Mainprize Midco Limited’s revenue was £0 in the year to 31 Mar 2025, with £3.7m profit and 0 employees. The company is classified under “other service activities” and is based in Scarborough.

Full P&L filedSection S · Other service activitiesSIC 96090Other service activities n.e.c.
Status
Active
Location
Scarborough, Yorkshire and The Humber
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.

Latest accounts · year to 31 Mar 2025

Key figures

Small teamYoung and profitable
Revenue
£0
Growth —
Profit
£3.7m
Growth —
Profit margin
—
 
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 to31 Mar 2025
DisclosureFull P&L
Profit & loss
Revenue (turnover)£0
Operating profit£0
Profit before tax£3.7m
Profit after tax£3.7m
Profit (best available)£3.7m
Employees (average)0
Ratios
Profit margin—
Balance sheet — indirect signals, not revenue
Net assets£1k
SourceFullAccounts · bulk data Oct 2025
Derived from the latest filing

How the business works

Profit margin
—
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
—
Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue
—
Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue
—
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 £1k
Cash at bank
—
Now —
Headcount
—
Now 0
Deferred income
—
Now —
Fixed assets
—
Now —
Corporate ownership

Group structure

Ownership chain

  1. Project Summer Topco Limitedultimate parent75–100%
  2. Project Summer Bidco Limited75–100%
  3. Mainprize Holdings Limited75–100%
  4. Mainprize Midco Limitedthis company

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

Subsidiaries (1)

Sister companies (4)

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

Same industry, similar size

Similar profitable businesses

Industry benchmarks →

Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 Mar 2025 (profit £3.7m), from the Companies House accounts bulk data published Oct 2025. 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.