Istructe Ltd
Registered name: ISTRUCTE LTD
Part of Institution of Structural Engineers groupIstructe Ltd made £1.2m revenue and £346k profit in the year to 31 Dec 2025.
Istructe Ltd’s revenue grew 1% to £1.2m in the year to 31 Dec 2025, with £347k profit. The company is classified under “other business support service activities” and is based in London; we hold 3 years of its filed accounts.
- Status
- Active
- Location
- London, London
- Age
- 36 yrs · since 1989
- 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.
Key figures
Badges are automated estimates derived from the filed figures — not statements of fact about the company.
Financial history
| Year to | 31 Dec 2023 | 31 Dec 2024 | 31 Dec 2025 |
|---|---|---|---|
| Disclosure | Full P&L | Full P&L | Full P&L |
| Profit & loss | |||
| Revenue (turnover) | £1.2m | £1.2m | £1.2m |
| Cost of sales | −£422k | −£395k | −£291k |
| Gross profit | £810k | £770k | £890k |
| Operating profit | £368k | £296k | £347k |
| Profit before tax | £368k | £296k | £347k |
| Profit after tax | £368k | £296k | £347k |
| Profit (best available) | £368k | £296k | £347k |
| Employees (average) | — | — | — |
| Ratios | |||
| Profit margin | 29.9% | 25.4% | 29.3% |
| Gross margin | 65.7% | 66.1% | 75.4% |
| Growth (year on year) | |||
| Revenue growth | — | ▼5.4% | ▲1.3% |
| Profit growth | — | ▼19.5% | ▲16.9% |
| Balance sheet — indirect signals, not revenue | |||
| Net assets | — | — | — |
| Source | Accounts · bulk data Apr 2025 | Accounts · bulk data Apr 2025 | Accounts · bulk data May 2026 |
How the business works
- Profit margin
- 29.3%
- Profit ÷ revenue.
- Gross margin
- 75.4%
- 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
- Institution of Structural Engineersultimate parent75–100%
- Istructe Ltdthis company
Bands show the share of ownership each company holds in the one below it.
Sister companies (3)
- Structural Engineers Registration LimitedRev. £1.7m · Profit £653k
- Association of Construction EngineersFigures not disclosed
- Institution of Construction EngineersFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Sources
Latest figures from accounts for the year to 31 Dec 2025 (profit £347k), from the Companies House accounts bulk data published May 2026. Spotted an error? Request a correction.
Updated from Companies House on 12 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.