Guillemot Investments LLP

ActiveSO306084 Limited liability partnership

Incorporated: 18 May 2017 (9 years)
Industry: None Supplied (None Supplied)
Accounts type: Full
Region: Scotland
Address: 1 George Street
Edinburgh
EH2 2LL

Filing status

Accounts due: 30 September 2027
Last accounts: 31 December 2025
Conf. stmt due: 31 May 2027
Last conf. stmt: 17 May 2026

Officers 1 active

Officer details are public data from the Companies House register.

Samson Railco Limited

Corporate LLP Designated Member · Appointed 19 June 2026

Officer history (6 former)

1 July 2026

Resigned Slci Rail Co-Invest Lp as Corporate LLP Designated Member

1 July 2026

Appointed Samson Railco Limited as Corporate LLP Designated Member

1 July 2026

Resigned Samson Railco Limited as Corporate LLP Designated Member

1 July 2026

Resigned Sl Capital Infrastructure I Lp as Corporate LLP Designated Member

1 July 2026

Resigned Samson Midco Limited as Corporate LLP Designated Member

30 June 2026

Resigned Glil Infrastructure LLP as Corporate LLP Designated Member

30 June 2026

Appointed Samson Midco Limited as Corporate LLP Designated Member

19 June 2026

Appointed Samson Railco Limited as Corporate LLP Designated Member

13 June 2017

Appointed Slci Rail Co-Invest Lp as Corporate LLP Designated Member

13 June 2017

Appointed Glil Infrastructure LLP as Corporate LLP Designated Member

13 June 2017

Resigned Slcp (General Partner Infrastructure I) Limited as Corporate LLP Designated Member

18 May 2017

Appointed Slcp (General Partner Infrastructure I) Limited as Corporate LLP Designated Member

18 May 2017

Appointed Sl Capital Infrastructure I Lp as Corporate LLP Designated Member

Ownership 0 active

People and entities with significant control, from the Companies House PSC register

The company has declared that it has no person with significant control.

Former controllers (4)

1 July 2026

Ceased SL Capital Infrastructure I LP — Holds 25–50% of voting rights

30 June 2026

Ceased Glil Infrastructure LLP — Holds 25–50% of voting rights

31 December 2023

Ceased SL Capital Partners LLP — Has significant influence or control

13 June 2017

Ceased SLCP (General Partner Infrastructure I) Limited — Holds 75–100% of voting rights

Group structure 4 companies

Ownership group derived from the Companies House PSC register

Guillemot Investments LLP This company

Rock Rail South Western (Holdings) 1 Limited Owns 75–100% of shares

Rock Rail South Western (Holdings) 2 Limited Owns 75–100% of shares

Rock Rail South Western PLC Owns 75–100% of shares

Filings 41

Date	Description	Made Up To	Pages	PDF
21 July 2026	Termination of appointment of a member
21 July 2026	Appointment of a member
20 July 2026	Termination of appointment of a member
15 July 2026	Appointment of a member
15 July 2026	Termination of appointment of a member