Houlder Limited

Other engineering activities · London

ActiveUnited KingdomIncorporated 2002Private Limited Company

Documents & history

Available account evidence and business events. This is not a complete filing history or document library.

Accounts to 2025-12-31

IXBRL · 220 source facts · 32 selected values

Validation findings

XBRL valid

Reporting period: 2025-01-01 to 2025-12-31
Extraction status: complete
Numeric facts: 156
Documents processed: 1
XBRL standards validation: valid
Filing-profile validation: invalid
Parser: arelle 2.44.4
Taxonomy: FRS-102-2025-01-01.xsd
Currency: GBP
Source identifier: Prod223_4308_04400298_20251231
Source archive: Accounts_Bulk_Data-2026-09-16.zip

Extraction findings: filing rules invalid. These describe source processing, not an audit opinion on the company.

Accounts to 2024-12-31

IXBRL · 230 source facts · 32 selected values

Validation findings

XBRL valid

Reporting period: 2024-01-01 to 2024-12-31
Extraction status: complete
Numeric facts: 167
Documents processed: 1
XBRL standards validation: valid
Filing-profile validation: invalid
Parser: arelle 2.44.4
Taxonomy: FRS-102-2023-01-01.xsd
Currency: GBP
Source identifier: Prod224_2509_04400298_20241231
Source archive: Accounts_Monthly_Data-September2025.zip

Extraction findings: filing rules invalid. These describe source processing, not an audit opinion on the company.

Accounts to 2023-12-31

IXBRL · 261 source facts · 34 selected values

Not assessed

legacy record

Reporting period: 2023-01-01 to 2023-12-31
Extraction status: Legacy / not assessed
Numeric facts: 183
Documents processed: Not recorded
XBRL standards validation: Not assessed
Filing-profile validation: Not assessed
Parser: Legacy parser
Taxonomy: FRS-102-2023-01-01.xsd
Currency: GBP
Source identifier: Prod224_2476_04400298_20231231
Source archive: Accounts_Monthly_Data-September2024.zip

Accounts to 2022-12-31

IXBRL · 257 source facts · 34 selected values

Not assessed

legacy record

Reporting period: 2022-01-01 to 2022-12-31
Extraction status: Legacy / not assessed
Numeric facts: 184
Documents processed: Not recorded
XBRL standards validation: Not assessed
Filing-profile validation: Not assessed
Parser: Legacy parser
Taxonomy: FRS-102-2021-01-01.xsd
Currency: GBP
Source identifier: Prod224_0020_04400298_20221231
Source archive: Accounts_Monthly_Data-July2023.zip

Accounts to 2021-12-31

IXBRL · 198 source facts · 25 selected values

Not assessed

legacy record

Reporting period: 2021-01-01 to 2021-12-31
Extraction status: Legacy / not assessed
Numeric facts: 137
Documents processed: Not recorded
XBRL standards validation: Not assessed
Filing-profile validation: Not assessed
Parser: Legacy parser
Taxonomy: FRS-102-2021-01-01.xsd
Currency: GBP
Source identifier: Prod224_0108_04400298_20211231
Source archive: Accounts_Monthly_Data-July2022.zip

Accounts to 2020-12-31

IXBRL · 210 source facts · 27 selected values

Not assessed

legacy record

Reporting period: 2020-01-01 to 2020-12-31
Extraction status: Legacy / not assessed
Numeric facts: 144
Documents processed: Not recorded
XBRL standards validation: Not assessed
Filing-profile validation: Not assessed
Parser: Legacy parser
Taxonomy: FRS-102-2019-01-01.xsd
Currency: GBP
Source identifier: Prod224_0093_04400298_20201231
Source archive: Accounts_Monthly_Data-August2021.zip

Registered details

04400298

Status: Active
Type: Private Limited Company
Incorporated: 2002-03-21
Jurisdiction: —
Registered office: LEYTONSTONE HOUSE, 3 HANBURY DRIVE, LONDON, E11 1GA, ENGLAND

Classification

1 SIC codes

71129

Capital & company events

Reconstructed equity rounds and matched research funding.

Equity fundraising

0 SH01-derived rounds

No reconstructed allotment rounds.

Research and innovation

10 matched grants

Future Low-emission Ammonia Marine Engines (FLAME)

Innovate UK · Collaborative R&D · 2025-09-01 – 2026-03-31 · with 5 other participants

£26,571

awarded

Carnot Ltdlead£433,112

University of Southampton£96,361

Clean Air Power Gt Limited£77,153

De Courcy Alexander Ltd£42,988

Houlder Limited£26,571

Mol (Europe Africa) Ltd£0

MOSES AF (Marine Optimised Selector - Energy Savers/ Alternative Fuel)Lead

Innovate UK · Collaborative R&D · 2025-09-01 – 2026-03-31 · with 1 other participant

£79,143

awarded

Houlder Limitedlead£79,143

Siem Shipping UK Limited£14,251

Project MROS: Feasibility of an Optionally Crewed Multi-Role Offshore Support Vessel

Innovate UK · Collaborative R&D · 2025-08-01 – 2026-03-31 · with 4 other participants

£38,824

awarded

Acua Ocean Limitedlead£220,979

University of Southampton£174,750

Trident Marine Electrical Ltd£49,816

Ad Hoc Marine Designs Ltd£46,386

Houlder Limited£38,824

COMLink Design tool (Conceptural, Operational Modelling Linked Design Tool)Lead

Innovate UK · Feasibility Studies · 2024-11-01 – 2025-03-31 · with 2 other participants

£59,160

awarded

University of Southampton£100,266

Houlder Limitedlead£59,160

Siem Shipping UK Limited£6,306

BOSS LEVEL (Battery Optimisation Sensor Systems with Local Environment and Vessel Engineering Learnings)

Innovate UK · Feasibility Studies · 2024-10-01 – 2025-03-31 · with 5 other participants

£14,551

awarded

Marine South East Limited£103,995

University of Portsmouth£93,977

Barter For Things Ltd.lead£69,371

HydroSurv Unmanned Survey (UK) Ltd£57,623

Swanbarton Limited£28,742

Houlder Limited£14,551

Feasibility study into decarbonisation of SOV newbuild and retrofit

Innovate UK · Collaborative R&D · 2021-09-01 – 2022-03-31 · with 2 other participants

£36,326

awarded

Expleo Engineering UK Limited£90,963

Bibby Marine Services Limitedlead£42,530

Houlder Limited£36,326

Windfarm Autonomous Ships Project (WASP)

ISCF · Collaborative R&D · 2018-01-01 – 2019-12-31 · with 5 other participants

£667,489

whole project

Autonomous Service Vehicles Limited T/A L3HarrisleadAutonomous Surface Vehicles LimitedHoulder LimitedOffshore Renewable Energy Catapult Seaplanner LimitedUniversity Of Portsmouth

Windfarm Autonomous Ships Project (WASP)

Innovate UK · Collaborative R&D · 2018-01-01 – 2019-12-31 · with 5 other participants

£75,750

awarded

Autonomous Surface Vehicles Limited£187,770

University of Portsmouth£153,494

Offshore Renewable Energy Catapult£146,830

Seaplanner Limited£103,645

Houlder Limited£75,750

Autonomous Service Vehicles Limited T/A L3Harrislead£0

Offshore Platform for Energy Competitiveness (OPEC)

Innovate UK · Feasibility Studies · 2017-10-01 – 2018-12-31 · with 4 other participants