Filing status
- Accounts due
- 16 September 2027
- Conf. stmt due
- 29 December 2026
Mainframe I GP LLP
- Incorporated
- 16 December 2025 (10 months)
- Previously known as
- Alphagraph I GP LLP (until 3 September 2026)This list may be incomplete. See all names on Companies House
- Industry
- None Supplied (None Supplied)
- Owned by
- Region
- Greater London
- Address
- C/o Notion Capital Managers LLP91 Wimpole StreetLondonW1G 0EF
Officers
This list may be incomplete. See all officers on Companies House
Officer details are public data from the Companies House register.
Alphagraph Services Ltd
Corporate LLP Designated Member · Appointed 16 December 2025
Corporate LLP Designated Member · Appointed 16 December 2025
Also at Mainframe I CP LLP
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Corporate entity · Notified 16 December 2025
Holds 75–100% of voting rights
Right to 75–100% of surplus assets
Right to appoint and remove members
Private Limited Company
Reg. no. 16906761
Group structure 3 companies
Ownership group derived from the Companies House PSC register
Alphagraph Services Ltd Owns 75–100% of shares
Mainframe I GP LLP This company Holds 75–100% of voting rights
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 3 September 2026 | Change of name notice | — | ||
| 3 September 2026 | Certificate of change of name |
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