opendata.bot
Company number
15373743

MAILSHARK LTD

Active
✓ Active company on the official register. Next accounts due 30 September 2026.

Company details

West Midlands, England Contains OS data © Crown copyright and database right. Contains Royal Mail data © Royal Mail copyright and database right. Source: Office for National Statistics licensed under the Open Government Licence v.3.0.
Registered name
MAILSHARK LTD
Company number
15373743
Registered office
EARL STREET STUDIOS, EARL STREET, RUGBY, WARWICKSHIRE, CV21 3SS, ENGLAND · 38 other companies at this postcode
Company type
Private Limited Company
Incorporated on
28 December 2023
Status
Active
Age
2 years
Previous names
EARL STREET CAPITAL HOLDINGS LTD (to 07 Apr 2025)
Nature of business (SIC)
62090 — Other information technology service activities · 72190 — Other research and experimental development on natural sciences and engineering
Accounts — next due
30 Sept 2026
Accounts — last made up to
31 Dec 2024
Confirmation statement — next due
10 Jan 2027
Confirmation statement — last
27 Dec 2025

People with significant control

Beneficial owners holding over 25% of shares, voting rights or the right to appoint directors

Danny Leeson
owns 75–100% of shares · holds 75–100% of voting rights · can appoint and remove directors
Notified 28/12/2023

Corporate structure

Who controls this company, and who they control in turn

1 controller Drag to move · scroll to zoom · double-click to expand
Company Person Current control Ended

Connections

Danny Leeson
born 09/1994 · England owns 75–100% of shares · holds 75–100% of votes · can appoint and remove directors Control ended 31/12/2024

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
07/04/2025 Registered name changed EARL STREET CAPITAL HOLDINGS LTD MAILSHARK LTD
31/12/2024 Person with significant control ceased Danny Leeson
28/12/2023 Person with significant control added Danny Leeson

Financial highlights

Parsed from the filed statutory accounts (£ thousands, except employees)

Source: Companies House bulk data filed accounts (iXBRL)
Metric FY2024
Total assets less current liabilities 5
Net assets 5
Employees (avg) 0

Documents for MAILSHARK LTD

Need this one company on file? Buy the document on its own — no plan required.

Company extract£1.99

The full registration record as held today — name, number, status, registered office, company type, previous names, officers, PSC and SIC codes, timestamped for your file.

PDF Order
Financial statements£3.99

Every figure the company’s own accounts state, across each filed period, with year-on-year movement. Most UK companies file small or micro-entity accounts — a balance sheet and a headcount, no turnover or profit.

PDF + CSV Order
Ownership report£3.99

Who controls the company: persons with significant control, the nature of that control, the ownership graph and every other company those controllers hold.

PDF Order

Data protection register

No entry found on the ICO register of fee payers under this name.

Not every organisation has to register — some are exempt. An absent entry is a question to ask, not a finding.

Get this company via API

Every field on this page is available as structured JSON behind one endpoint and one API key.

GET /v1/company/gb/15373743
X-Api-Key: $OPENDATA_KEY
Read the API docs

Frequently asked questions

What is the company number of MAILSHARK LTD?
According to the official registry, the company number of MAILSHARK LTD is 15373743.
Where is MAILSHARK LTD registered?
The registered office is EARL STREET STUDIOS, EARL STREET, RUGBY, WARWICKSHIRE, CV21 3SS, ENGLAND.
What is the SIC code of MAILSHARK LTD?
The nature of business is recorded under SIC code 62090 — Other information technology service activities, 72190 — Other research and experimental development on natural sciences and engineering.
Who controls MAILSHARK LTD?
Danny Leeson is recorded as a person with significant control, and owns 75–100% of shares, holds 75–100% of voting rights, can appoint and remove directors.
When are the next accounts of MAILSHARK LTD due?
The next annual accounts are due by 30 September 2026, and the last accounts were made up to 31 December 2024.

About MAILSHARK LTD (15373743)

MAILSHARK LTD is a private limited company incorporated on 28 December 2023 and registered in the United Kingdom under company number 15373743. Its registered office is at EARL STREET STUDIOS, EARL STREET, RUGBY, WARWICKSHIRE, CV21 3SS, ENGLAND. The recorded nature of business is other information technology service activities (SIC 62090). The company is currently active , with statutory accounts last made up to 31 December 2024. , and the person with significant control is Danny Leeson. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 2 September 2026.

Companies at the same registered office

Other information technology service activities across UK registers

The same sector and the same company, seen through every register we hold

Explore by sector

Every UK company records what it does as a SIC code — browse the sectors around this one.