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Company No. NI685615 · Incorporated 8 Feb 2022

Lagan Specialist Infrastructure Group Limited

Registered name: LAGAN SPECIALIST INFRASTRUCTURE GROUP LIMITED

Lagan Specialist Infrastructure Group Limited made £169m revenue and £7.9m profit in the year to 31 Mar 2025. read from filing text

Lagan Specialist Infrastructure Group Limited’s revenue grew 22% to £169m in the year to 31 Mar 2025, with £7.9m profit and 226 employees. The company is classified under “activities of construction holding companies” and is based in Belfast; we hold 4 years of its filed accounts.

Full P&L filedSection K · Financial and insurance activitiesSIC 64203Activities of construction holding companies
Status
Active
Location
Belfast, Northern Ireland
Age
4 yrs · since 2022
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.

Latest accounts · year to 31 Mar 2025

Key figures

IndependentCapital-lightYoung and profitableOperating leverageDoing more with less
Revenue
£169m
Growth ▲21.9%
Profit
£7.9m
Growth ▲44.6%
Profit margin
4.7%
Gross 11%
Employees
226
Change ▼4.2%
Profit / employee
£35.1k
Revenue/employee £747k
Profitable streak
4yrs
Consecutive profitable years in our data

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

4 filed years

Financial history

Multi-year financials, oldest to newest
Year to31 Mar 202231 Mar 202331 Mar 202431 Mar 2025
DisclosureFull P&Lread from filing textFull P&Lread from filing textFull P&Lread from filing textFull P&Lread from filing text
Profit & loss
Revenue (turnover)£81.4m£137m£139m£169m
Cost of sales£72.2m£123m£123m£150m
Gross profit£9.2m£13.9m£15.9m£18.6m
Operating profit£2.6m£5.5m£7.8m£9.7m
Profit before tax£2.6m£5.9m£7.8m£9.7m
Profit after tax£2.6m£5m£5.5m£7.9m
Profit (best available)£2.6m£5m£5.5m£7.9m
Employees (average)136185236226
Ratios
Profit margin3.2%3.6%4%4.7%
Gross margin11.3%10.2%11.5%11%
Revenue per employee£598k£741k£587k£747k
Profit per employee£18.9k£26.8k£23.3k£35.1k
Growth (year on year)
Revenue growth—▲68.4%▲1.1%▲21.9%
Profit growth—▲92.7%▲10.7%▲44.6%
Headcount growth—▲36%▲27.6%▼4.2%
Balance sheet — indirect signals, not revenue
Cash at bank—£0£1.3k£1.2k
Net assets£0£81£1.5k£1.4k
Fixed assets£0£81£188£188
SourceFullAccounts · bulk data Dec 2023FullAccounts · bulk data Dec 2023FullAccounts · bulk data Dec 2024FullAccounts · bulk data Dec 2025
Derived from the latest filing

How the business works

Profit margin
4.7%
Profit ÷ revenue.
Gross margin
11%
Gross profit ÷ revenue. High for software and services.
Revenue per employee
£747k
Revenue ÷ average employees.
Profit per employee
£35.1k
Profit ÷ average employees.
Cash conversion
—
Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue
0%
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
▼6%
Now £1.4k
Cash at bank
▼6%
Now £1.2k
Headcount
▼4%
Now 226
Deferred income
—
Now —
Fixed assets
0%
Now £188
Corporate ownership

Group structure

Subsidiaries (1)

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

Sources

Latest figures from FullAccounts for the year to 31 Mar 2025 (profit £7.9m), from the Companies House accounts bulk data published Dec 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.