Callosum
ActiveRegistered as Callosum Technologies Ltd
Data to 4 Nov 2026, 02:59
- Company number
- 16646869
- Sector
- Not in a live sector
- SIC group
- Deep tech and hardware
- Region
- London (London)
- Incorporated
- 13 Aug 2025
- SIC code
- 72190
- Trading name
- Callosum
- Website
- callosum.com Legal name and address on the site, checked 19 Oct 2026
Callosum has 2 priced rounds on record from share allotment filings at Companies House. The latest was allotted on 4 Sep 2026, raised £17.8m, and was filed on 11 Sep 2026. Data to 4 Nov 2026.
2
Priced rounds
Allotted Jun 2026 to Sep 2026
£75.0m
Cash raised in those rounds
Sum of sterling cash raised in each round, as filed
4 Sep 2026
Latest round allotted
Filed 11 Sep 2026
Jump to
Funding rounds
Priced equity rounds read from share allotment filings at Companies House, newest first.
| Allotted | First filed | Cash raised | Filing |
|---|---|---|---|
| 4 Sep 2026Latest | 11 Sep 2026 | £17.8m | Open filing |
| 24 Jun 2026to 8 Jul 2026 | 10 Aug 2026 | £57.2m | Open filing |
Companies with significant control
Companies with significant control over Callosum, from the register of people with significant control. A company can have control without holding shares. Individuals are not shown on public pages.
No corporate holder of 25% or more is registered.
From the PSC register.
Filings
The latest 6 capital filings other than share allotments (SH01), which are listed under Funding rounds. 6 share filings (SH01) have been read for this company.
| Date | Filing | Document |
|---|---|---|
| 31 Oct 2026 | Resolution | Open at Companies House |
| 17 Aug 2026 | Resolution | Open at Companies House |
| 17 Aug 2026 | Memorandum and articles (MA) | Open at Companies House |
| 13 Jan 2026 | Resolution | Open at Companies House |
| 8 Sep 2025 | Resolution | Open at Companies House |
| 8 Sep 2025 | Memorandum and articles (MA) | Open at Companies House |
Documents open at Companies House. Bradshaw does not store or re-host them.
About this page
This page shows public register data for Callosum. Figures come from filings at Companies House; Bradshaw links to each filing and does not host copies. To correct or object to data about you, use the data request form.
Last updated 4 Nov 2026