Firmoscan
Active16076949Private limited companyLondon

CALLOSUM LTD

Owned by Callosum Technologies Ltd (75–100%)

Companies HouseCompanies House

From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms

01

Summary

Generated from filed data · no estimates

CALLOSUM LTD is an active private limited company (company number 16076949) incorporated on 13 November 2024, registered in London. Its registered activity is other research and experimental development on natural sciences and engineering (SIC 72190). No accounts have been filed yet; the first accounts are due by 13 August 2026.

There are 654 companies in other research and experimental development on natural sciences and engineering in London with filed accounts; the median reports net assets of £101 and is 7 years old.

02

Key dates

Incorporated
13 November 20241 yr ago
First accounts due
13 August 202670 days overdue
Confirmation statement due
27 November 2026in 36 days

Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.

03

Activity

SIC 72190
Other research and experimental development on natural sciences and engineering
Accounts type
No Accounts Filed
04

Financials

No accounts on record

No accounts filed yet. The first accounts are due by 13 August 2026; this page updates when they are filed.

05

Ownership and control

1 active · 1 other
  • Callosum Technologies Ltd
    corporate entity, England · since 26 August 2025
    • owns 75–100% of shares
    • holds 75–100% of voting rights
    • can appoint or remove directors
  • persons with significant control statement · since 13 November 2024 · ceased 26 August 2025

Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents.

06

Timeline

Newest first
  1. Confirmation statement duein 36 days
  2. First accounts due70 days overdue
  3. Incorporated
07

Similar companies in London

Same activity (other research and experimental development on natural sciences and engineering), closest in incorporation date

All companies incorporated on 13 November 2024 · in Nov 2024.

08

Reminders for CALLOSUM LTD

Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.

Source: Companies House register, snapshot 2026-08-31. Open Government Licence v3.0. View on Companies House. Methodology · About · Markdown.

This information comes from public filings and our automated processing of them. It may contain errors, be incomplete or be out of date, and is not advice or a credit reference. Check the official record before relying on it. Terms · Privacy · Report an error (corrected within one working day).