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Company No. 15316483 · Incorporated 29 Nov 2023

Tresmares Capital UK Limited

Registered name: TRESMARES CAPITAL UK LIMITED

Part of Banco Santander, S.a. group

Tresmares Capital UK Limited made £5.1m revenue and £617k profit in the year to 31 Dec 2025.

Tresmares Capital UK Limited’s revenue grew 263% to £5.1m in the year to 31 Dec 2025, with £617k profit and 12 employees. The company is classified under “financial intermediation not elsewhere classified” and is based in London; we hold 2 years of its filed accounts.

Status
Active
Location
London
Age
2 yrs · since 2023
Type
Private Limited Company
Latest accounts · year to 31 Dec 2025

Key figures

Revenue
£5.1m
Growth ▲263%
Profit
£617k
Growth ▲331.6%
Profit margin
12.1%
 
Employees
12
Change ▲9.1%
Profit / employee
£51.4k
Revenue/employee £425k
Profitable streak
2yrs
Consecutive profitable years in our data
2 filed years

Financial history

Multi-year financials, oldest to newest
Year to31 Dec 202431 Dec 2025
DisclosureFull P&LFull P&L
Profit & loss
Revenue (turnover)£1.4m£5.1m
Cost of sales£1.2m—
Operating profit£206k£848k
Profit before tax£206k£854k
Profit after tax£143k£617k
Profit (best available)£143k£617k
Employees (average)1112
Ratios
Profit margin10.2%12.1%
Revenue per employee£128k£425k
Profit per employee£13k£51.4k
Growth (year on year)
Revenue growth—▲263%
Profit growth—▲331.6%
Headcount growth—▲9.1%
Balance sheet — indirect signals, not revenue
Net assets——
SourceAccounts · bulk data Aug 2025Accounts · bulk data Oct 2026
Derived from the latest filing

How the business works

Profit margin
12.1%
Profit ÷ revenue.
Gross margin
—
Gross profit ÷ revenue. High for software and services.
Revenue per employee
£425k
Revenue ÷ average employees.
Profit per employee
£51.4k
Profit ÷ average employees.
Cash conversion
—
Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue
—
Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue
—
Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue
—
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
—
Now —
Cash at bank
—
Now —
Headcount
▲9%
Now 12
Deferred income
—
Now —
Fixed assets
—
Now —
Corporate ownership

Group structure

Ownership chain

  1. Banco Santander, S.a.ultimate parent75–100%
  2. Tresmares Capital UK Limitedthis company

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

Sister companies (9)

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

Sources

Latest figures from accounts for the year to 31 Dec 2025 (profit £617k), from the Companies House accounts bulk data published Oct 2026. Spotted an error? Request a correction.

Updated from Companies House on 17 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.