BT Iot Networks Limited
Registered name: BT IOT NETWORKS LIMITED
Part of BT Group PLC groupBT Iot Networks Limited made £3.1m revenue and £3.5m profit in the year to 31 Mar 2025.
BT Iot Networks Limited’s revenue grew 21% to £3.1m in the year to 31 Mar 2025, with £3.5m profit. The company is classified under “other information technology service activities” and is based in London; we hold 3 years of its filed accounts.
- Status
- Active
- Location
- London
- Age
- 37 yrs · since 1988
- Type
- Private Limited Company
Key figures
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.
Financial history
| Year to | 31 Mar 2023 | 31 Mar 2024 | 31 Mar 2025 |
|---|---|---|---|
| Disclosure | Full P&L | Full P&L | Full P&L |
| Profit & loss | |||
| Revenue (turnover) | £2.3m | £2.6m | £3.1m |
| Cost of sales | −£1m | −£1.4m | −£1.3m |
| Operating profit | £1.3m | £1.2m | £1.8m |
| Profit before tax | £1.9m | £2.7m | £3.4m |
| Profit after tax | £1m | £2.8m | £3.5m |
| Profit (best available) | £1m | £2.8m | £3.5m |
| Employees (average) | — | — | — |
| Ratios | |||
| Profit margin | 45.6% | 107.2% | 110.9% |
| Growth (year on year) | |||
| Revenue growth | — | ▲13.5% | ▲20.5% |
| Profit growth | — | ▲166.3% | ▲24.8% |
| Balance sheet — indirect signals, not revenue | |||
| Net assets | — | — | — |
| Source | Accounts · bulk data Dec 2024 | Accounts · bulk data Dec 2024 | Accounts · bulk data Sep 2025 |
How the business works
- Profit margin
- 110.9%
- 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.
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 —
Group structure
Ownership chain
- BT Group PLCultimate parent75–100%
- BT Group Investments Limited75–100%
- British Telecommunications Limited75–100%
- BT Iot Networks Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Sister companies (28)
- Plusnet PLCRev. £337m · Profit £67.3m
- BT Solutions LimitedRev. £21.9m · Profit −£921k
- Holland House (Northern) LimitedRev. £200k · Profit £187k
- Autumnwindow LimitedFigures not disclosed
- Autumnwindow NO.2 LimitedFigures not disclosed
- Autumnwindow NO.3 LimitedFigures not disclosed
- Bpslp LimitedFigures not disclosed
- Bruning LimitedFigures not disclosed
- BT (RRS LP) LimitedFigures not disclosed
- BT Corporate LimitedFigures not disclosed
- BT Corporate Trustee LimitedFigures not disclosed
- BT European Investments LimitedFigures not disclosed
- BT Finance PLCFigures not disclosed
- BT Holdings LimitedFigures not disclosed
- BT Ninety-Seven LimitedFigures not disclosed
- BT Nominees LimitedFigures not disclosed
- BT Property Holdings (Aberdeen) LimitedFigures not disclosed
- BT Property LimitedFigures not disclosed
- BT Quartz Euston LimitedFigures not disclosed
- BT Ranger UK LimitedFigures not disclosed
- BT Sle Euro LimitedFigures not disclosed
- BT Sle Usd LimitedFigures not disclosed
- Ee Group Investments LimitedFigures not disclosed
- Newgate Street Secretaries LimitedFigures not disclosed
- Openreach LimitedFigures not disclosed
- Radianz LimitedFigures not disclosed
- Southgate Developments LimitedFigures not disclosed
- TNT Sports Broadcasting LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Sources
Latest figures from accounts for the year to 31 Mar 2025 (profit £3.5m), from the Companies House accounts bulk data published Sep 2025. Spotted an error? Request a correction.
Updated from Companies House on 22 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.