Stone Marine Singapore

What Stone Marine Singapore does

Stone Marine Singapore is the Singapore-based regional operation of The Stone Marine Group Ltd, a UK-domiciled private industrial group owned by Langham Industries. The group designs, manufactures, services, and repairs ship propulsion equipment — primarily propellers and sterngear — for commercial, naval, and leisure vessels of every type and size. Its technical foundation is Josiah Stone's 1820 screw propeller design, giving the firm a heritage of nearly 200 years in marine propulsion engineering. No AI/ML capability is evidenced in the input; the technology stack is mechanical-engineering driven, complemented by specialized on-site repair equipment deployed via mobile workshops.

The group operates through four specialized subsidiaries: Stone Marine Propulsion handles core manufacturing, Bruntons Propellers is an acquired propeller brand retained within the portfolio, Stone Marine Shipcare delivers worldwide 24/7 service and repair with mobile propeller repair workshops deployable to any port (including a stationed unit in the Middle East), and Stone Marine Propulsion NGC is a joint venture with NGC Marine of China serving the Asian market. Revenue is generated through two streams — hardware sales of custom propulsion equipment and professional services for installation, repair, and modification, including third-party equipment serviced regardless of original manufacturer.

The go-to-market is enterprise-direct via the specialized subsidiaries, supplemented by regional joint ventures for geographic reach (notably NGC Marine in China). Pricing is quote-based, consistent with custom-engineered B2B marine propulsion sold to shipyards, vessel operators, and naval procurement agencies. Customer segments are organized horizontally by vessel type — commercial shipping (primary), naval defense (primary), and leisure craft — and the group uses exhibitions and a corporate website as its primary marketing channels.

Name

Stone Marine Singapore

Legal name

The Stone Marine Group Ltd

Website

https://stonemarine.com

Company type

Private

Founded year

1820

Operating status

Operating

Short description

Stone Marine Singapore is the Singapore-based regional operation of The Stone Marine Group, designing and manufacturing propellers and sterngear for commercial, naval, and leisure vessels worldwide, with 24/7 global service and repair capabilities.

Ownership category

akta.pro rank

Product category

Marine Propulsion Equipment

NAICS

Ship Building and Repairing (336611)

SIC

Ship & Boat Building & Repairing (3730)

akta.pro primary industry

Propulsion Drives, Gearboxes & Shaftlines (IMAJAHAD)

akta.pro secondary industries

Marine Outfitting & Interior Refurbishment (TLAKAKAL), Piping, HVAC & Auxiliary Systems Repair (TLAKAKAH)

Keywords

• Marine propulsion equipment
• Propeller manufacturing
• Sterngear systems
• Ship propulsion services
• Marine equipment repair

Headquarters

HQ city

Singapore

HQ country

Singapore

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Propulsion Equipment Manufacturing: Design and manufacture of propellers and sterngear for commercial, naval, and leisure vessels of every type and size
2. Service and Repair: Worldwide 24/7 propulsion equipment service and repair, including mobile propeller repair workshops that bring advanced equipment and engineers to ports globally

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

Stone Marine Singapore operates as part of the Stone Marine Group, designing and manufacturing propellers, sterngear, and deck machinery for commercial, naval, and leisure vessels of every type and size. The Group also provides worldwide 24/7 service and repair of propulsion equipment through Stone Marine Shipcare, including mobile propeller repair workshops deployable to any port globally.

Product overview

Stone Marine Singapore operates as part of the Stone Marine Group, a platform of specialist companies unified by nearly 200 years of maritime engineering heritage. The portfolio consists of four core offerings: Stone Marine Propulsion (core propulsion equipment manufacturing), Stone Marine Propulsion NGC (joint venture with NGC Marine of China for Asian market coverage), Stone Marine Shipcare (worldwide 24/7 service and repair with mobile workshops), and Bruntons Propellers (acquired propeller brand). Together they provide end-to-end capabilities from design and manufacture through to global service and repair of propulsion equipment for commercial, naval, and leisure vessels.

Differentiator

Problem solved

Functional benefit

Products and services

• Stone Marine Propulsion Design, manufacture, service and repair of propulsion equipment including propellers and sterngear for commercial, naval and leisure vessels of every type and size.
• Stone Marine Shipcare Worldwide 24/7/365 service and repair of propulsion equipment regardless of original manufacturer, featuring mobile workshops enabling engineers and advanced repair equipment to be deployed rapidly to ports worldwide.
• Bruntons Propellers Propeller manufacturing brand within the Stone Marine Group, specializing in the design and manufacture of propellers for vessels of every type and size.
• Stone Marine Propulsion NGC Propulsion equipment company established in association with NGC Marine of China to extend the Stone Marine Group's manufacturing capabilities and market presence in the Asian region.

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

One partnership is on record.

• NGC Marine of ChinacoreStrategic or Co-development PartnerStone Marine Propulsion launched a new company in association with NGC Marine of China. This partnership enables the group to expand manufacturing capabilities and market presence in the Asian region through NGC Marine's local expertise and infrastructure.

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Caterpillar Marine: Caterpillar Marine supplies marine engines, propulsion packages, and service through a global dealer network. It is comparable to Stone Marine as a propulsion supplier to commercial and leisure vessels and a service-network operator, though at much larger scale.
• Wärtsilä: Wärtsilä is a global marine technology leader offering engines, propulsion systems, and lifecycle services to commercial and naval operators. It overlaps with Stone Marine across marine propulsion hardware and aftermarket service but operates at far greater scale and with a much broader portfolio.
• ABB Marine & Ports: ABB provides marine propulsion, electric systems, and automation for commercial vessels and offshore operators. It competes with Stone Marine on integrated propulsion packages and increasingly on energy-efficient propulsion retrofits.
• MAN Energy Solutions: MAN Energy Solutions supplies large two-stroke marine engines, propeller systems, and turbochargers, and is one of the dominant propulsion OEMs for commercial shipping. It is comparable to Stone Marine on the propulsion hardware side and competes for sterngear business on newbuilds.
• Kongsberg Maritime: Kongsberg Maritime delivers propulsion, deck machinery, automation, and vessel systems to commercial, naval, and offshore operators. Its deck machinery and propeller-related product lines overlap with Stone Marine's offering, though Kongsberg operates at much broader scope.
• Rolls-Royce Power Systems (MTU): Rolls-Royce's power systems business supplies marine propulsion engines, integrated propulsion systems, and service. It overlaps with Stone Marine on naval and commercial propulsion and competes for newbuild integrated package awards.

Direct peers

• Nakashima Propeller: Nakashima Propeller is a Japanese specialist manufacturer of marine propellers, sterngear, and propulsion systems serving commercial and naval customers. It is one of the closest direct peers to Stone Marine in terms of product focus, customer mix, and propeller-centric business model.
• Teignbridge Propellers: Teignbridge Propellers is a UK-based specialist propeller manufacturer and service provider for commercial, naval, and workboat markets. It is highly comparable to Stone Marine on product range, customer mix, and lifecycle service offering.
• Bruntons Propellers (group entity): Bruntons Propellers is itself a Stone Marine Group subsidiary focused on propeller manufacturing. Listed here to flag it as the in-group specialist that anchors direct peer comparison for propeller-only competitors such as independent propeller foundries.

Regional players

• Hempel Propellers: Hempel Propellers is a propeller manufacturing and service specialist focused primarily on the Americas. It mirrors Stone Marine's propeller-centric model with design, manufacture, and in-service repair, but with a geographic concentration rather than Stone Marine's global service network.

Market position

Competitive moat4 records

Key risks1 record

Key highlights6 records

Customer concentration

• Facebookfacebook.com/stonemarinesg

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Stone Marine Singapore