Bosung Corp

What Bosung Corp does

Bosung Engineering Co., Ltd. (BOSUNG) is a privately held Korean marine parts distributor and technical-services provider headquartered in Busan, South Korea, with wholly owned sales offices in Piraeus, Greece and Hamburg, Germany, plus a sales promotion network spanning Brazil, India, Taiwan, Indonesia, and Turkey. The company operates two business divisions: a Diesel Engine Business Division that supplies genuine spare parts and technical services for Hanwha-Everllence B&W 2-stroke, WinGD 2-stroke, and Hanwha-Everllence 4-stroke marine diesel engines (including HPS pump exchange, Alpha lubricator maintenance, gas injection engine services, dry-dock supervision, and the DEL NOX SCR emissions-compliance system, which Bosung originally designed), and a Marine Machinery Business Division that distributes genuine parts from multiple Korean marine-equipment OEMs covering deck machinery, safety equipment, galley equipment, environmental systems, electric equipment, valves, lighting, sensors, and auxiliary machinery.

The company monetizes primarily through transactional sales of genuine OEM spare parts (covering Hanwha Engine product lines and six-plus Korean marine OEMs) layered with recurring project-based technical services such as HPS pump exchange programs, SCR all-in-one maintenance, engine commissioning, condition-monitoring system deployments (O-WACS, B-WACS), and dry-dock supervision. Its go-to-market combines direct enterprise sales through owned regional offices in the world's principal shipping hubs (Busan, Piraeus, Hamburg) with regional channel partners across emerging maritime markets, supported by long-standing participation in flagship industry exhibitions (Posidonia in Greece, SMM in Germany, MarineTech in Korea) and customer-facing technical seminars.

Bosung reports a customer base of 436+ shipping companies and vessel operators across at least six regions, with the largest concentration in Southern Europe (160), followed by Northern Europe (104), Asia (75), and the Middle East, Americas, and South Korea (11 each). Revenue is not publicly disclosed, and there is no public ownership structure, no venture or private equity involvement, and no disclosed funding history; the company operates as an independent private Korean corporation with no current evidence of imminent M&A, IPO, or strategic transaction.

Name

Bosung Corp

Legal name

Bosung Engineering Co., Ltd.

Website

https://bosung.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Bosung Engineering Co., Ltd. is a privately held Korean marine spare-parts distributor and technical-services provider for shipping operators, supplying genuine parts and services for Hanwha-Everllence/WinGD diesel engines and Korean marine equipment OEMs across owned offices in Korea, Greece, and Germany.

Ownership category

akta.pro rank

Product category

Marine Engine Parts & Technical Services

NAICS

Engine, Turbine, and Power Transmission Equipment Manufacturing (33361), Ship Building and Repairing (336611), Other Engine Equipment Manufacturing (333618)

SIC

Engines & Turbines (3510)

akta.pro industry

PRIMARYIMAJAHAM

Propulsion Integration, Commissioning & Testing (Factory/sea trials, alignment)

Industrials, Manufacturing & Construction/Marine & Shipbuilding/Marine Propulsion & Power Systems (Engines, Drives, Thrusters)

Keywords

• Marine diesel parts
• Marine machinery distribution
• Ship engine services
• Marine emissions control
• Authorized spare parts

Headquarters

HQ city

Busan

HQ country

South Korea

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Supply Chain, Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Diesel Engine Spare Parts Sales: Sales of genuine and authorized spare parts for Hanwha-Everllence B&W 2-stroke engines, Hanwha-WinGD 2-stroke engines, and Hanwha-Everllence 4-stroke engines. Parts include major components for both 2-stroke and 4-stroke engines.
2. Marine Machinery Parts Distribution: Distribution of genuine marine equipment parts from authorized agencies and distributors across Korea, including deck machinery, safety machinery, galley equipment, environmental systems, electric equipment, valves, lighting, sensors, and auxiliary machinery.
3. Technical Services: Comprehensive technical services including electronically controlled engine maintenance, gas injection engine services, HPS pump exchange/upgrade, Alpha lubricator maintenance, SCR system services, catalyst replacement, engine component reconditioning, dry-dock supervision, and monitoring systems (O-WACS/B-WACS).

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

Bosung Corp is an authorized distributor and technical service provider for marine diesel engine spare parts and marine machinery equipment. The company supplies genuine parts for Hanwha-Everllence B&W 2-stroke, Hanwha-WinGD 2-stroke, and Hanwha-Everllence 4-stroke engines, along with deck machinery, safety equipment, galley, environmental systems, and auxiliary machinery from multiple Korean manufacturers. It delivers accompanying technical services including electronically controlled engine maintenance, HPS pump exchange, SCR emissions system servicing, dry-dock supervision, and engine monitoring systems to shipping companies and vessel operators worldwide.

Product overview

Bosung Corp operates two core business divisions: the Diesel Engine Business Division and the Marine Machinery Business Division. The Diesel Engine Division provides authorized genuine part sales and technical services for Hanwha-Everllence B&W and WinGD 2-stroke engines, as well as Hanwha-Everllence 4-stroke engines. The Marine Machinery Division serves as an authorized distributor for major Korean marine equipment manufacturers, supplying deck machinery, safety equipment, environmental systems, electric equipment, valves, lighting, and auxiliary machinery. Together, the divisions offer comprehensive engine maintenance, repair, upgrade services, and spare parts for the maritime industry.

Differentiator

Problem solved

Functional benefit

Products and services

• Diesel Engine Business Division Authorized genuine parts supplier and technical service provider for Hanwha-Everllence B&W and WinGD 2-stroke engines, as well as Hanwha-Everllence 4-stroke engines. Offers comprehensive maintenance, repair, and upgrade services including HPS pump exchange, Alpha lubricator maintenance, and SCR systems for shipping companies and vessel operators.
• Marine Machinery Business Division Authorized genuine part sales agency and distributor of major Korean marine equipment manufacturers. Supplies deck machinery, safety equipment, galley equipment, environmental systems, electric equipment, valves, lighting, sensors, and auxiliary machinery for shipyards and ship management companies.
• Electronically Controlled Engine Services Maintenance and commissioning services for electronically controlled marine diesel engines, including hydraulic power supply, hydraulic cylinder unit, engine control systems, and pneumatic components, for shipping companies and vessel operators.
• HPS Pump Exchange Service Full recondition of HPS pumps on exchange basis using maker-supplied seed pumps, replacing almost all components except pump casing to improve quality, efficiency, and reliability. Also offers HS3 to HS4 pump upgrades with safety block, proportional valve, and inductive sensor. Addresses long delivery time concerns for shipping companies.
• DEL NOX SCR All-In-One Service Package All-in-one maintenance and annual spot check service for DEL NOX SCR systems, including NOx measurement and catalyst replacement. Bosung is the original designer of the DEL NOX SCR system for Hanwha Engine, providing emissions compliance support for ship operators.
• Gas Injection Engine Services Services for gas injection engines including gas control block maintenance, cylinder cover and gas injection valve services, and sealing oil pump maintenance, provided to shipping companies operating gas injection marine engines.
• Dry-Dock Supervision Service Supervision services for dry-dock operations, including close inspection, visual inspection, and crew instruction and education, provided to shipping companies and shipyards during scheduled dry-dockings.
• O-WACS/B-WACS Monitoring Systems O-WACS monitors water content in lubricating oil (L.O.) while B-WACS monitors the condition of three major bearings for engine protection, providing continuous condition monitoring for marine diesel engines.

Quantifiable outcome

• Prompt delivery and competitive pricing ensuring minimal vessel downtime

Named customers4 records

Segments3 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

14 partnerships are on record, tiered core and minor.

• Hanwha Engine (Hanwha-Everllence)coreTechnology or IntegrationLicensed diesel engine manufacturer. Bosung is an authorized and genuine part sales agency for Hanwha Engine products including Everllence B&W 2-stroke engines, WinGD 2-stroke engines, and Everllence 4-stroke engines. Also offers technical services for these engines.
• SAMGONG CO.,LTD.coreChannel Partner/ Reseller/ DistributorAuthorized agency partner for marine equipment. Bosung distributes genuine marine machinery parts through this partnership.
• DONGHWA PNEUTEC CO.,LTD.coreChannel Partner/ Reseller/ DistributorAuthorized agency partner for pneumatic marine equipment. Distributor of Donghwa Pneutec products through Bosung's network.
• CENTURY CORPORATIONcoreChannel Partner/ Reseller/ DistributorAuthorized agency partner for marine equipment distribution.
• TAE-IL BLOWER MFG.CO.,LTD.coreChannel Partner/ Reseller/ DistributorAuthorized agency partner for blower manufacturing and marine equipment distribution.
• HI AIR KOREA Co., Ltd.coreChannel Partner/ Reseller/ DistributorAuthorized distributor partner for air handling equipment and marine solutions.
• Aquametro Oil & Marine Korea LTD.coreChannel Partner/ Reseller/ DistributorAuthorized agency partner for oil and marine measurement solutions.
• Bosung Engineering (Hellas) Ltd.coreChannel Partner/ Reseller/ DistributorOwned subsidiary in Greece (Piraeus) handling sales operations for Southern Europe region.
• Bosung Engineering Co.,Ltd. (European Branch)coreChannel Partner/ Reseller/ DistributorOwned branch office in Germany (Hamburg) handling sales operations for Northern Europe region.
• Comercial Bierges Ltda (Brazil)minorChannel Partner/ Reseller/ DistributorSales promotion network partner covering Brazil and South American markets.
• Antaeus Marine Services (India)minorChannel Partner/ Reseller/ DistributorSales promotion network partner covering India market.
• Ming Tzong Harng Trading Co.,Ltd. (Taiwan)minorChannel Partner/ Reseller/ DistributorSales promotion network partner covering Taiwan market.
• PT.Global Trading (Indonesia)minorChannel Partner/ Reseller/ DistributorSales promotion network partner covering Indonesia market.
• Oceanist Engineering Ltd. (Türkiye)minorChannel Partner/ Reseller/ DistributorSales promotion network partner covering Turkey market.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• MAN Energy Solutions: Major manufacturer of large marine 2-stroke diesel engines (formerly MAN B&W), and a direct licensor that competes with Hanwha-Everllence. Its service network and PrimeServ after-sales division compete head-to-head with Bosung's authorized Hanwha-Everllence parts and services business.
• Caterpillar Marine Power: Marine division of a major engine OEM providing engines, parts, and global service network. Overlaps with Bosung's 4-stroke engine parts and service offering and competes for the same vessel-operator customers.
• Wärtsilä: A leading global marine engine manufacturer and service provider offering both newbuild engines and lifecycle services. Overlaps with Bosung across marine diesel engine spare parts, maintenance, and digital monitoring services for shipowners globally.
• Hyundai Heavy Industries (Engine & Machinery Division): Korean shipbuilder with an engine manufacturing division producing marine diesel engines. As a fellow Korean-based engine ecosystem player, it shares parts-supply and service relationships with the same Korean maritime customers as Bosung.

Direct peers

• CW Kellock & Co. A long-established independent marine engineering services and spares supplier for 2-stroke and 4-stroke marine engines. Closely comparable to Bosung as a niche parts-and-services specialist serving global shipowners with technical support.
• Diesel Marine International: Independent marine engine spare parts distributor serving shipowners and operators. Directly comparable to Bosung in distributing diesel engine parts and providing technical services to commercial marine customers.
• Houlder: Independent marine engineering consultancy and services provider offering technical services, spares, and project support to shipowners and operators. Comparable to Bosung in offering dedicated engine and marine systems services for merchant fleets.

Regional players

• Alpha Marine Services: Greek-based marine services provider offering engine spares and technical services to vessel operators in the Eastern Mediterranean. Operates in one of Bosung's strongest regions (Southern Europe, Piraeus) and competes for the same Greek shipowner customer base.

Others

• WinGD (Winterthur Gas & Diesel): Designer and licensor of low-speed marine 2-stroke engines and Bosung's principal technology licensor via the Hanwha-WinGD relationship. While a licensor rather than direct competitor, its roadmap directly shapes Bosung's long-term service opportunity on the installed WinGD fleet.
• Hanwha Engine: Bosung's principal supplier and licensor of Everllence and WinGD engines in Korea. While not a direct competitor (it makes engines rather than distributing parts), it is the strategic partner whose product portfolio underpins Bosung's revenue and is therefore the most relevant ecosystem participant.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/bosung-corp

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries2 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 Bosung Corp