How much does Nsi Water and Wastewater Solutions Ltd make?

Nsi Water and Wastewater Solutions Ltd reported revenue of £45.7m and a loss of £2.8m in the year to 31 Dec 2024, according to its accounts filed at Companies House.

How many employees does Nsi Water and Wastewater Solutions Ltd have?

Nsi Water and Wastewater Solutions Ltd reported an average of 75 employees in the year to 31 Dec 2024.

Is Nsi Water and Wastewater Solutions Ltd profitable?

No — Nsi Water and Wastewater Solutions Ltd reported a loss of £2.8m in the year to 31 Dec 2024.

Company No. 04785670 · Incorporated 3 Jun 2003

Nsi Water and Wastewater Solutions Ltd

Registered name: NSI WATER AND WASTEWATER SOLUTIONS LTD

Part of Nijhuis Saur Industries UK & Ireland Limited group

Nsi Water and Wastewater Solutions Ltd made £45.7m revenue and a £2.8m loss in the year to 31 Dec 2024.

Nsi Water and Wastewater Solutions Ltd’s revenue fell 11% to £45.7m in the year to 31 Dec 2024, with a loss of £2.8m and 75 employees. The company is classified under “water collection, treatment and supply” and is based in Truro; we hold 3 years of its filed accounts.

Full P&L filedSection E · Water supply, sewerage and waste managementSIC 36000Water collection, treatment and supply SIC 37000Sewerage SIC 42910Construction of water projects SIC 74901Environmental consulting activities

Status: Active
Location: Truro, South West
Age: 23 yrs · since 2003
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. From the filing: “Nijhuis Saur Industries UK & Ireland Limited”

Latest accounts · year to 31 Dec 2024

Key figures

Capital-light

Revenue

£45.7m

Growth ▼10.7%

Profit

−£2.8m

Growth ▼209.8%

Profit margin

−6.1%

Gross 0.9%

Employees

Change ▲2.7%

Profit / employee

−£37.3k

Revenue/employee £610k

Profitable streak

0yrs

Consecutive profitable years in our data

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

3 filed years

Financial history

Multi-year financials, oldest to newest
Year to	31 Dec 2022	31 Dec 2023	31 Dec 2024
Disclosure	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£24.5m	£51.2m	£45.7m
Cost of sales	£21.8m	£45.7m	£45.3m
Gross profit	£2.7m	£5.6m	£414k
Operating profit	£910k	£3.4m	−£2.6m
Profit before tax	£905k	£3.4m	−£2.6m
Profit after tax	£785k	£2.5m	−£2.8m
Profit (best available)	£785k	£2.5m	−£2.8m
Staff costs	£3.3m	£4.4m	£4.9m
Employees (average)	61	73	75
Ratios
Profit margin	3.2%	5%	−6.1%
Gross margin	10.9%	10.8%	0.9%
Revenue per employee	£402k	£702k	£610k
Profit per employee	£12.9k	£34.9k	−£37.3k
Growth (year on year)
Revenue growth	—	▲109%	▼10.7%
Profit growth	—	▲224.1%	▼209.8%
Headcount growth	—	▲19.7%	▲2.7%
Balance sheet — indirect signals, not revenue
Cash at bank	£2m	£8.8m	£3.7m
Net assets	£2.5m	£5.1m	£2.3m
Fixed assets	£1.2m	£1.4m	£3.6m
Current assets	£15.6m	£31.3m	£29m
Debtors	£4.6m	£1.4m	£4.3m
Deferred income	£7.3m	£5.8m	£3.8m
Source	FullAccounts · bulk data Feb 2025	FullAccounts · bulk data Feb 2025	FullAccounts · bulk data Sep 2026

Derived from the latest filing

How the business works

Profit margin: −6.1%; Profit ÷ revenue.
Gross margin: 0.9%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £610k; Revenue ÷ average employees.
Profit per employee: −£37.3k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 7.9%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 8.2%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 9.4%; 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: ▼55%; Now £2.3m
Cash at bank: ▼58%; Now £3.7m
Headcount: ▲3%; Now 75
Deferred income: ▼35%; Now £3.8m
Fixed assets: ▲166%; Now £3.6m

Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal only.

Corporate ownership

Group structure

Ownership chain

Nijhuis Saur Industries UK & Ireland Limitedultimate parent75–100%
Nsi Water and Wastewater Solutions Ltdthis company

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

Sister companies (4)

Nsi Industrial O&m Solutions LtdRev. £17.9m · Profit £1.2m
Nsi Commercial Buildings Solutions LtdFigures not disclosed
Nsi Engineering Solutions LtdFigures not disclosed
Nsi Manufacturing UK LimitedRev. — · Profit −£656k

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 FullAccounts for the year to 31 Dec 2024 (profit −£2.8m), from the Companies House accounts bulk data published Sep 2026. Spotted an error? Request a correction.

Updated from Companies House on 13 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.