Skip to content
CompanySight
Company No. 09046577 · Incorporated 19 May 2014

Nasmyth Technologies Limited

Registered name: NASMYTH TECHNOLOGIES LIMITED

Part of Sigma Advanced Systems Ltd group

Nasmyth Technologies Limited made £4.5m revenue and £475k profit in the year to 30 Apr 2025.

Nasmyth Technologies Limited’s revenue grew 38% to £4.5m in the year to 30 Apr 2025, with £475k profit and 40 employees. The company is classified under “manufacture of metal structures and parts of structures” and is based in Coventry; we hold 4 years of its filed accounts.

Full P&L filedSection C · ManufacturingSIC 25110Manufacture of metal structures and parts of structuresSIC 32990Other manufacturing n.e.c.SIC 33160Repair and maintenance of aircraft and spacecraft
Status
Active
Location
Coventry, West Midlands
Age
12 yrs · since 2014
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 30 Apr 2025

Key figures

Capital-lightOperating leverage
Revenue
£4.5m
Growth ▲38.1%
Profit
£475k
Growth ▲118.9%
Profit margin
10.5%
Gross 20.5%
Employees
40
Change ▲25%
Profit / employee
£11.9k
Revenue/employee £113k
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 to30 Apr 202229 Apr 202330 Apr 202430 Apr 2025
DisclosureFull P&LFull P&LFull P&LFull P&L
Profit & loss
Revenue (turnover)£6m£5.3m£3.3m£4.5m
Cost of sales£5.9m£4.3m£2.5m£3.6m
Gross profit£24k£1m£749k£928k
Operating profit£2m£273k£153k£428k
Profit before tax£1.8m£238k£158k£428k
Profit after tax£2.1m£500k£217k£475k
Profit (best available)£2.1m£500k£217k£475k
Employees (average)58483240
Ratios
Profit margin34.7%9.4%6.6%10.5%
Gross margin0.4%19.4%22.9%20.5%
Revenue per employee£103k£111k£102k£113k
Profit per employee£35.7k£10.4k£6.8k£11.9k
Growth (year on year)
Revenue growth——▼38.5%▲38.1%
Profit growth——▼56.6%▲118.9%
Headcount growth——▼33.3%▲25%
Balance sheet — indirect signals, not revenue
Cash at bank£288k£21k£0£16k
Net assets£317k£817k£1m£1.5m
Fixed assets£318k£196k£193k£236k
Current assets£2.6m£2.4m£3.2m£3.3m
Debtors£1.1m£994k£1.5m£1.4m
Deferred income£284k£14k£90k£16k
SourceAccounts · bulk data Jul 2024Accounts · bulk data Jul 2024FullAccounts · bulk data Apr 2025FullAccounts · bulk data Mar 2026
Derived from the latest filing

How the business works

Profit margin
10.5%
Profit ÷ revenue.
Gross margin
20.5%
Gross profit ÷ revenue. High for software and services.
Revenue per employee
£113k
Revenue ÷ average employees.
Profit per employee
£11.9k
Profit ÷ average employees.
Cash conversion
—
Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue
5.2%
Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue
0.4%
Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue
29.9%
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
▲46%
Now £1.5m
Cash at bank
—
Now £16k
Headcount
▲25%
Now 40
Deferred income
▼82%
Now £16k
Fixed assets
▲22%
Now £236k

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

  1. Sigma Advanced Systems Ltd (registered outside the UK register)ultimate parent75–100%
  2. Sigma Advanced Systems UK Ltd75–100%
  3. Nasmyth Group Limited75–100%
  4. Nasmyth Technologies Limitedthis company

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

Sister companies (7)

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

Same industry, similar size

Similar profitable businesses

Industry benchmarks →

Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 30 Apr 2025 (profit £475k), from the Companies House accounts bulk data published Mar 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.