How much does Platinum Southwark Limited make?

Platinum Southwark Limited reported revenue of £12.4m and £4.7m profit in the year to 31 Mar 2026, according to its accounts filed at Companies House.

Is Platinum Southwark Limited profitable?

Yes — Platinum Southwark Limited reported a profit of £4.7m in the year to 31 Mar 2026.

Company No. 14859544 · Incorporated 10 May 2023

Platinum Southwark Limited

Registered name: PLATINUM SOUTHWARK LIMITED

Part of Helical PLC group

Platinum Southwark Limited made £12.4m revenue and £4.7m profit in the year to 31 Mar 2026.

Platinum Southwark Limited’s revenue was £12.4m in the year to 31 Mar 2026, with £4.7m profit. The company is classified under “development of building projects” and is based in London; we hold 2 years of its filed accounts.

Full P&L filedSection F · ConstructionSIC 41100Development of building projects

Status: Active
Location: London, London
Age: 3 yrs · since 2023
Type: Private Limited Company

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 2026

Key figures

Young and profitable

Revenue

£12.4m

Growth —

Profit

£4.7m

Growth —

Profit margin

37.9%

Gross 46.9%

Employees

—

Change —

Profit / employee

—

Profitable streak

1yr

Consecutive profitable years in our data

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

2 filed years

Financial history

Multi-year financials, oldest to newest
Year to	31 Mar 2025	31 Mar 2026
Disclosure	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£0	£12.4m
Cost of sales	£0	−£6.6m
Gross profit	£0	£5.8m
Operating profit	−£10.5k	£5.8m
Profit before tax	−£10.5k	£5.8m
Profit after tax	−£10.5k	£4.7m
Profit (best available)	−£10.5k	£4.7m
Employees (average)	—	—
Ratios
Profit margin	—	37.9%
Gross margin	—	46.9%
Balance sheet — indirect signals, not revenue
Net assets	—	—
Source	Accounts · bulk data Aug 2026	Accounts · bulk data Aug 2026

Derived from the latest filing

How the business works

Profit margin: 37.9%; Profit ÷ revenue.
Gross margin: 46.9%; 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 —
Cash at bank: —; Now —
Headcount: —; Now —
Deferred income: —; Now —
Fixed assets: —; Now —

Corporate ownership

Group structure

Ownership chain

Helical PLCultimate parent75–100%
Helical Platinum Limited50–75%
Platinum Holdco Limited75–100%
Platinum Southwark Limitedthis company

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

Sister companies (3)

Platinum Charterhouse LimitedFigures not disclosed
Platinum KWS LimitedFigures not disclosed
Platinum Paddington LimitedFigures not disclosed

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

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Sources

Companies House profile Filing history & original accounts

Latest figures from accounts for the year to 31 Mar 2026 (profit £4.7m), from the Companies House accounts bulk data published Aug 2026. Spotted an error? Request a correction.

Updated from Companies House on 14 Oct 2026

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