How much does Constructive Biology Limited make?

Constructive Biology Limited reported revenue of £10.8m and a loss of £525k in the year to 31 Dec 2025, according to its accounts filed at Companies House.

How many employees does Constructive Biology Limited have?

Constructive Biology Limited reported an average of 46 employees in the year to 31 Dec 2025.

Is Constructive Biology Limited profitable?

No — Constructive Biology Limited reported a loss of £525k in the year to 31 Dec 2025.

Company No. 13758641 · Incorporated 22 Nov 2021

Constructive Biology Limited

Registered name: CONSTRUCTIVE BIOLOGY LIMITED

Constructive Biology Limited made £10.8m revenue and a £525k loss in the year to 31 Dec 2025.

Constructive Biology Limited’s revenue was £10.8m in the year to 31 Dec 2025, with a loss of £525k and 46 employees. The company is classified under “research and experimental development on biotechnology” and is based in London; we hold 4 years of its filed accounts.

Full P&L filedSection M · Professional, scientific and technical activitiesSIC 72110Research and experimental development on biotechnology

Status: Active
Location: London, London
Age: 4 yrs · since 2021
Type: Private Limited Company

Latest accounts · year to 31 Dec 2025

Key figures

Independent

Revenue

£10.8m

Growth —

Profit

−£525k

Growth —

Profit margin

−4.9%

Gross 91.5%

Employees

Change ▲64.3%

Profit / employee

−£11.4k

Revenue/employee £234k

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.

4 filed years

Financial history

Multi-year financials, oldest to newest
Year to	30 Nov 2022	30 Nov 2023	31 Dec 2024	31 Dec 2025
Disclosure	No P&L	No P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	—	—	£0	£10.8m
Cost of sales	—	—	£0	£914k
Gross profit	—	—	£0	£9.9m
Operating profit	—	—	−£6.5m	−£2.9m
Profit before tax	—	—	−£6m	−£1.6m
Profit after tax	—	—	−£5.6m	−£525k
Profit (best available)	—	—	−£5.6m	−£525k
Employees (average)	3	15	28	46
Ratios
Profit margin	—	—	—	−4.9%
Gross margin	—	—	—	91.5%
Revenue per employee	—	—	£0	£234k
Profit per employee	—	—	−£201k	−£11.4k
Growth (year on year)
Headcount growth	—	▲400%	▲86.7%	▲64.3%
Balance sheet — indirect signals, not revenue
Cash at bank	£2.2m	£8.1m	£31.4m	£45.2m
Net assets	£3.1m	£9m	£33.1m	£48m
Fixed assets	£574k	£616k	£1.5m	£1.7m
Current assets	£2.7m	£8.8m	£32.6m	—
Debtors	£0	£2.4k	£80.1k	£0
Source	FullAccounts · bulk data Apr 2024	FullAccounts · bulk data Apr 2024	FullAccounts · bulk data Apr 2025	FullAccounts · bulk data Apr 2026

Derived from the latest filing

How the business works

Profit margin: −4.9%; Profit ÷ revenue.
Gross margin: 91.5%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £234k; Revenue ÷ average employees.
Profit per employee: −£11.4k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 16.2%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: —; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 0%; 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: ▲45%; Now £48m
Cash at bank: ▲44%; Now £45.2m
Headcount: ▲64%; Now 46
Deferred income: —; Now —
Fixed assets: ▲19%; Now £1.7m

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Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 Dec 2025 (profit −£525k), from the Companies House accounts bulk data published Apr 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.