Active16646869Private limited companyLondon

CALLOSUM TECHNOLOGIES LTD

Significant control: Jascha Achterberg (25–50%), Danyal Akarca (25–50%)

Companies HouseCompanies House

From public filings as at 31 Aug 2026; may contain errors or be out of date.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

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What does Callosum Technologies Ltd sell?

Registered activity: Other research and experimental development on natural sciences and engineering (SIC 72190). We’re building product and service lists for UK companies. Get this one when it’s ready.

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01

Summary

Generated from filed data · no estimates

CALLOSUM TECHNOLOGIES LTD is an active private limited company (company number 16646869) incorporated on 13 August 2025, 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 May 2027.

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

Ownership and control

2 active
  • Dr Jascha Achterberg
    Individual · since 13 August 2025
    • owns 25–50% of shares
    • holds 25–50% of voting rights
  • Dr Danyal Akarca
    Individual · since 13 August 2025
    • owns 25–50% of shares
    • holds 25–50% of voting rights

Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents. Directors and secretaries: see the officers list at Companies House.

03

Key dates

Incorporated
13 August 20251 yr ago
First accounts due
13 May 2027in 202 days
Confirmation statement due
27 August 2027in 308 days

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

04

Activity

SIC 72190
Other research and experimental development on natural sciences and engineering
Accounts type
No Accounts Filed
05

Financials

No accounts on record

No accounts filed yet. The first accounts are due by 13 May 2027; this page updates when they are filed.

06

Timeline

Newest first
  1. Confirmation statement duein 308 days
  2. First accounts duein 202 days
  3. Incorporated
07

Similar companies in London

Same activity (other research and experimental development on natural sciences and engineering), closest in incorporation date
08

Reminders for CALLOSUM TECHNOLOGIES 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.