How much does Saybolt United Kingdom Limited make?

Saybolt United Kingdom Limited reported revenue of £1.7m and a loss of £428k in the year to 31 Dec 2025, according to its accounts filed at Companies House.

How many employees does Saybolt United Kingdom Limited have?

Saybolt United Kingdom Limited reported an average of 19 employees in the year to 31 Dec 2025.

Is Saybolt United Kingdom Limited profitable?

No — Saybolt United Kingdom Limited reported a loss of £428k in the year to 31 Dec 2025.

Company No. 00896844 · Incorporated 27 Jan 1967

Saybolt United Kingdom Limited

Registered name: SAYBOLT UNITED KINGDOM LIMITED

Part of Core Laboratories (U.K.) Limited group

Saybolt United Kingdom Limited made £1.7m revenue and a £428k loss in the year to 31 Dec 2025. read from filing text

Saybolt United Kingdom Limited’s revenue fell 23% to £1.7m in the year to 31 Dec 2025, with a loss of £428k and 19 employees. The company is classified under “other research and experimental development on natural sciences and engineering” and is based in London; we hold 4 years of its filed accounts.

Full P&L filedSection M · Professional, scientific and technical activitiesSIC 72190Other research and experimental development on natural sciences and engineering

Status: Active
Location: London, London
Age: 59 yrs · since 1967
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: “The immediate parent undertaking is Core Laboratories (U.K.) Limited. The registered address of Core Laboratories (U.K.) Limited is 13th Floor, One Angel Court, London, United Kngdom, EC3R 7HJ.”

Latest accounts · year to 31 Dec 2025

Key figures

Capital-light

Revenue

£1.7m

Growth ▼23.4%

Profit

−£428k

Growth ▼285.7%

Profit margin

−25.3%

Gross 7.7%

Employees

Change ▼5%

Profit / employee

−£22.5k

Revenue/employee £89k

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	31 Dec 2022	31 Dec 2023	31 Dec 2024	31 Dec 2025
Disclosure	Full P&Lread from filing text	Full P&Lread from filing text	Full P&Lread from filing text	Full P&Lread from filing text
Profit & loss
Revenue (turnover)	£2.1m	£2.4m	£2.2m	£1.7m
Cost of sales	£1.5m	£1.5m	£1.5m	£1.6m
Gross profit	£649k	£831k	£679k	£130k
Operating profit	£152k	£293k	£136k	−£350k
Profit before tax	£322k	£290k	£226k	−£420k
Profit after tax	£292k	£306k	£231k	−£428k
Profit (best available)	£292k	£306k	£231k	−£428k
Staff costs	£731k	£779k	£806k	£830k
Employees (average)	19	19	20	19
Ratios
Profit margin	13.9%	13%	10.4%	−25.3%
Gross margin	30.8%	35.1%	30.8%	7.7%
Revenue per employee	£111k	£124k	£110k	£89k
Profit per employee	£15.4k	£16.1k	£11.5k	−£22.5k
Growth (year on year)
Revenue growth	—	▲12.3%	▼6.6%	▼23.4%
Profit growth	—	▲4.9%	▼24.8%	▼285.7%
Headcount growth	—	0%	▲5.3%	▼5%
Balance sheet — indirect signals, not revenue
Cash at bank	£17.8k	£20k	£17.4k	£25.3k
Net assets	£1.3m	£1.7m	£1.9m	£1.5m
Fixed assets	£245k	£159k	£119k	£141k
Current assets	£1.6m	£2m	£2.3m	£1.8m
Debtors	£354k	£399k	£414k	£214k
Source	FullAccounts · bulk data Sep 2024	FullAccounts · bulk data Sep 2024	FullAccounts · bulk data Sep 2025	FullAccounts · bulk data Sep 2026

Derived from the latest filing

How the business works

Profit margin: −25.3%; Profit ÷ revenue.
Gross margin: 7.7%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £89k; Revenue ÷ average employees.
Profit per employee: −£22.5k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 8.3%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: —; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 12.7%; 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: ▼23%; Now £1.5m
Cash at bank: ▲46%; Now £25.3k
Headcount: ▼5%; Now 19
Deferred income: —; Now —
Fixed assets: ▲18%; Now £141k

Corporate ownership

Group structure

Ownership chain

Core Laboratories (U.K.) Limitedultimate parent75–100%
Saybolt United Kingdom Limitedthis company

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

Sister companies (4)

Owen Oil Tools (U.K.) LimitedRev. £10.2m · Profit −£1.2m
Core Laboratories Interests One LimitedRev. — · Profit −£229k
Coreton LimitedFigures not disclosed
Labton 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 Dec 2025 (profit −£428k), from the Companies House accounts bulk data published Sep 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.