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HARTREE PARTNERS ADVISORY SERVICES U.K. LIMITED

active Private Limited Company
🇬🇧 GB | Incorporated 2001-10-19 | Reg. 04308190 | Data as of 2026-06-01
74909 - Other professional, scientific and technical activities n.e.c.

HARTREE PARTNERS ADVISORY SERVICES U.K. LIMITED is a private limited company registered in the United Kingdom, under 04308190, incorporated on 19 October 2001. The company is currently active. Operates in the other professional, scientific and technical activities n.e.c. sector (SIC 74909). The company has been operating for 24 years. Registered office address: SW1W 9SH London, the United Kingdom. Formerly known as HETCO ADVISORY SERVICES U.K. LIMITED. Directors include MR JONATHAN HUGH O'NEILL, MR STEPHEN MICHAEL SEMLITZ, and MR HEIKO VOELKER. Associated with 20 related entities, including KWB POWER LIMITED, 07253937, and HARTREE SOLUTIONS LIMITED. No sanctions, PEP status, or adverse risk signals are currently on record. Data sourced from UK Companies House.

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Official Identifiers

REGISTRATION NUMBER 04308190

Name Registry

FORMER

HETCO ADVISORY SERVICES U.K. LIMITED

FORMER

HESS ENERGY COMPANY (UK) LIMITED

Registered Address

LEVEL 8
123 BUCKINGHAM PALACE ROAD
SW1W 9SH LONDON
the United Kingdom

Signal Intelligence

verified

No sanctions, PEP status, or adverse risk signals are currently on record for this entity.

Key Management & Controllers

DIRECTOR
DIRECTOR
DIRECTOR

Associated Entities

Companies sharing one or more directors or officers with this entity.

Change Log (3)

Date Change Details
2026-05-07 DIRECTOR ADDED Stephen Michael Semlitz (director)
2026-05-07 DIRECTOR ADDED Jonathan Hugh O'neill (director)
2026-05-07 DIRECTOR ADDED Heiko Voelker (director)

Source Records (1)

companieshouse 04308190 2026-06-01 open_in_new
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