How much does FLR Spectron Limited make?

FLR Spectron Limited reported revenue of £18m and £1.1m profit in the year to 31 May 2025, according to its accounts filed at Companies House.

How many employees does FLR Spectron Limited have?

FLR Spectron Limited reported an average of 64 employees in the year to 31 May 2025.

Is FLR Spectron Limited profitable?

Yes — FLR Spectron Limited reported a profit of £1.1m in the year to 31 May 2025.

Company No. 04085164 · Incorporated 6 Oct 2000

FLR Spectron Limited

Registered name: FLR SPECTRON LIMITED

FLR Spectron Limited made £18m revenue and £1.1m profit in the year to 31 May 2025.

FLR Spectron Limited’s revenue grew 25% to £18m in the year to 31 May 2025, with £1.1m profit and 64 employees. The company is classified under “wireless telecommunications activities” and is based in London; we hold 4 years of its filed accounts.

Full P&L filedSection J · Information and communicationSIC 61200Wireless telecommunications activities

Status: Active
Location: London, London
Age: 26 yrs · since 2000
Type: Private Limited Company

Latest accounts · year to 31 May 2025

Key figures

IndependentOperating leverageDoing more with lessCash flow filed

Revenue

£18m

Growth ▲24.8%

Profit

£1.1m

Growth ▲340.4%

Profit margin

6.3%

Gross 46.7%

Employees

Change ▼5.9%

Profit / employee

£17.7k

Revenue/employee £281k

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 to	31 May 2022	31 May 2023	31 May 2024	31 May 2025
Disclosure	Full P&L	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£11m	£13.5m	£14.4m	£18m
Cost of sales	£6.7m	£7.6m	£8.4m	£9.6m
Gross profit	£4.3m	£5.8m	£6m	£8.4m
Operating profit	£267k	£220k	£382k	£1.5m
Profit before tax	£241k	£195k	£355k	£1.5m
Profit after tax	£188k	£126k	£257k	£1.1m
Profit (best available)	£188k	£126k	£257k	£1.1m
Staff costs	£2.7m	£3.9m	£4.1m	£4.7m
Employees (average)	65	72	68	64
Ratios
Profit margin	1.7%	0.9%	1.8%	6.3%
Gross margin	39.2%	43.3%	41.6%	46.7%
Revenue per employee	£169k	£187k	£212k	£281k
Profit per employee	£2.9k	£1.8k	£3.8k	£17.7k
Cash conversion	−73.5%	341.3%	267.6%	179.6%
Growth (year on year)
Revenue growth	—	▲22.4%	▲7.2%	▲24.8%
Profit growth	—	▼32.6%	▲103.4%	▲340.4%
Headcount growth	—	▲10.8%	▼5.6%	▼5.9%
Balance sheet — indirect signals, not revenue
Cash at bank	—	−£161k	£31.6k	£1.9m
Net assets	£542k	£368k	£743k	£1.4m
Fixed assets	£1.1m	£1.3m	£1.8m	£1.8m
Current assets	—	£1.7m	£1.9m	£4.1m
Debtors	£1.5m	£1.3m	£1.6m	£1.5m
Deferred income	£379k	£229k	£393k	£1.2m
Cash from operations	−£197k	£752k	£1m	£2.8m
Source	FullAccounts · bulk data Feb 2024	FullAccounts · bulk data Feb 2024	FullAccounts · bulk data Dec 2024	FullAccounts · bulk data Feb 2026

Derived from the latest filing

How the business works

Profit margin: 6.3%; Profit ÷ revenue.
Gross margin: 46.7%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £281k; Revenue ÷ average employees.
Profit per employee: £17.7k; Profit ÷ average employees.
Cash conversion: 179.6%; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 10.3%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 6.6%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 8.6%; 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: ▲92%; Now £1.4m
Cash at bank: ▲5874%; Now £1.9m
Headcount: ▼6%; Now 64
Deferred income: ▲200%; Now £1.2m
Fixed assets: ▲1%; Now £1.8m

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

Subsidiaries (3)

FLR Monitoring LimitedFigures not disclosed
FLR Projects LtdFigures not disclosed
Spectron Communications LimitedFigures not disclosed

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 May 2025 (profit £1.1m), from the Companies House accounts bulk data published Feb 2026. 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.