Era4 Limited

Active16536112 Private limited company

Incorporated: 23 June 2025 (1 year)
Previously known as: Carbon3ai Limited (until 4 March 2026)
Neoghost Limited (until 1 July 2025)
This list may be incomplete. See all names on Companies House
Industry: Data processing, hosting and related activities (63110)
Directors: Mark Adam Dawber

list may be incomplete
Owned by: Era4 Holdings PLC
Region: Greater London
Address: The Black And White Building
74 Rivington Street
London
EC2A 3AY

Website & contact details

Website: era4.com

Filing status

Accounts due: 31 December 2026
Conf. stmt due: 6 July 2027
Last conf. stmt: 22 June 2026

Officers

This list may be incomplete. See all officers on Companies House

Officer details are public data from the Companies House register.

Dawber, Mark Adam

Director · Appointed 24 September 2025

Also at E4DCS Limited, E4 Data Centre Services Limited, J&M Data Centre Services Limited · more companies

British

Born March 1988 (38)

Officer history (1 former)

7 September 2026

Resigned Hughes, Patrick Joseph as Director

24 September 2025

Appointed Dawber, Mark Adam as Director

23 June 2025

Appointed Hughes, Patrick Joseph as Director

Ownership 1 active

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

Era4 Holdings PLC

Corporate entity · Notified 14 September 2026

Owns 75–100% of shares

Holds 75–100% of voting rights

Right to appoint and remove directors

Public Limited Company

Reg. no. 17449756

Former controllers (2)

25 September 2026

Ceased Patrick Joseph Hughes — Owns 25–50% of shares

25 September 2026

Ceased Patrick Joseph Hughes — Owns 25–50% of shares

Group structure 6 companies

Ownership group derived from the Companies House PSC register

Era5 Limited

Era4 Holdings PLC Owns 75–100% of shares

Era4 Keystone Limited Owns 75–100% of shares

Era4 Limited This company Owns 75–100% of shares

Era4 (Erin) Limited Owns 75–100% of shares

Valencia Energy Limited Owns 75–100% of shares

What Era4 say about themselves

“Era4 is regenerating the future, bringing together land, energy and compute into a single, controlled system needed to support the next generation of AI.”

— from era4.com