SHINWOO

What SHINWOO does

SHINWOO (Shinwoo Development Co., Ltd., 신우개발주식회사) is a privately held Korean construction equipment and marine construction company headquartered in Seocho-gu, Seoul, operating since 1997 (with firmographic records dating to 1999). The company runs four integrated business segments: ultra-high-rise and large-scale equipment rental (tower cranes, construction lifts), equipment trust management (maintenance and operation services), caisson manufacturing equipment rental (described as the only Korean provider with delivery track record), and construction equipment safety services (non-destructive testing, autonomous inspection, tower crane supervision). Its proprietary technology base centers on a fleet of large-class floating docks — the 10,000-ton SFD20000, the 14,000-ton SFD20001, and an additional 15,000-ton unit — used for caisson installation in port and marine projects, plus SEP barges and pump, sludge, and gravel dredging equipment.

SHINWOO serves Korean construction companies, port authorities, and government entities through direct B2B enterprise field sales. Documented customers include Samsung C&T (Samsung C&T), Hanjin Heavy Industries (Hanjin Heavy Industries), Daelim Industrial (Daelim Industrial), Jangdo Enterprise, Haeluk Development, Woongjin Development, and C&I Construction, with projects spanning Gajeodo Port typhoon recovery, Jeju Naval Base, Busan New Port, Incheon North Port, Gwangyang Port, Gunsan Outer Port, and the Vietnam Son Doung Port international project (2013-2016). Across its history, the firm has logged 21 domestic marine projects and 1 overseas project, all delivered on a project-based, multi-year contract model with pricing quoted per project or per month rather than via published rates.

The operating model is asset-heavy and project-tied: equipment and crews are deployed directly to customer sites for the duration of construction projects, with no dealer or intermediary distribution. The company operates a related wholly-owned subsidiary, Shinwoo CM (Shinwoo CM), and maintains collective bargaining relationships with four Korean labor federations as of April 2026. Revenue is not publicly disclosed, there is no venture capital backing, and the firm has no public listing. The marketing approach is direct enterprise engagement supplemented by industry association presence, with no software platform, app, API, or AI/ML capabilities disclosed in the source material.

Name

SHINWOO

Legal name

신우개발주식회사

Website

https://shinwooi.co.kr

Company type

Private

Founded year

1999

Operating status

Operating

Short description

SHINWOO is a Korean construction equipment rental and marine construction company that provides large-class floating docks, caisson production equipment, dredging vessels, and equipment safety services to major Korean construction firms, port authorities, and government agencies on a project-based contract model.

Ownership category

akta.pro rank

Product category

Construction Equipment Rental Services

NAICS

Ship Building and Repairing (336611), Ship and Boat Building (3366), Support Activities for Water Transportation (4883), Overhead Traveling Crane, Hoist, and Monorail System Manufacturing (333923), Ship and Boat Building (33661)

SIC

Ship & Boat Building & Repairing (3730), Construction Machinery & Equip (3531), Services-Miscellaneous Equipment Rental & Leasing (7350), Construction, Mining & Materials Handling Machinery & Equip (3530)

akta.pro primary industry

Dry Docks & Floating Docks (Graving, Floating, Syncrolift) (IMAJALAA)

akta.pro secondary industries

Heavy Lifting & Material Handling Infrastructure (Goliath Cranes, Jib Cranes, Hoists) (IMAJALAD), Pipe-lay & Heavy-lift Offshore Vessel Construction (IMAJACAE), Underwater Inspection, Maintenance & Repair (UWILD, Diving/ROV, In-water Cleaning) (IMAJAFAJ)

Keywords

• Construction equipment rental
• Marine construction equipment
• Caisson production equipment
• Equipment management services
• Construction safety services

Headquarters

HQ city

Seochon

HQ country

South Korea

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Equipment Rental: Rental of lifting equipment (tower cranes, construction lifts) and marine equipment (floating docks, dredging vessels, pump ships) to construction companies and port operators. Revenue generated through long-term project-based contracts.
2. Equipment Management Services: Comprehensive construction equipment entrusted management including maintenance, operation, and technical support. Professional management services for construction machinery.
3. Equipment Safety Services: Safety inspection, supervision, and compliance services for construction equipment including tower cranes and construction lifts. Includes non-destructive testing.
4. Caisson Production Equipment: Design, manufacturing, and rental of caisson production equipment for port and marine construction projects.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

SHINWOO provides construction equipment rental, equipment trust management, caisson manufacturing equipment supply, and equipment safety services to Korean construction companies, port authorities, and government agencies. The company operates specialized marine construction assets including 10,000–15,000-ton class floating docks for caisson installation, along with dredging vessels and barges for port, harbor, and offshore marine construction projects. It also manages lifting equipment such as tower cranes and construction lifts through long-term project-based contracts that bundle equipment supply with on-site operation, maintenance, and regulatory safety supervision.

Product overview

SHINWOO is a construction equipment rental and marine construction company operating four core business segments: Equipment Rental (ultra-high-rise and large equipment), Equipment Trust Management, Caisson Manufacturing Equipment Rental (Korea's only provider with delivery performance), and Equipment Safety Services. The company operates specialized marine equipment including floating docks (SFD20000, SFD20001, FLOATING DOCK) ranging from 10,000 to 15,000-ton capacity, S.E.P BARGE for RCD pile construction, and various dredging equipment (pump, oni/sludge, gravel). SHINWOO's marine construction portfolio includes domestic projects (Gadeodo Port typhoon recovery, Jeju Naval Base, Yeongjongdo land bridge, Busan New Port, Incheon projects) and international projects (Vietnam Son Doung Port).

Differentiator

Problem solved

Functional benefit

Products and services

• Equipment Rental Business (장비렌탈사업) Rental of lifting equipment (tower cranes, construction lifts) and heavy construction equipment to large Korean construction firms on a project basis. Designed for construction companies needing capital-efficient access to high-capacity equipment for ultra-high-rise and large-scale building projects.
• Equipment Trust Management Business (장비위탁관리사업) Entrusted management of construction equipment including on-site operation, scheduled maintenance, and technical support, positioned as Korea's leading construction machinery trust management service. Designed for project owners and contractors outsourcing day-to-day equipment operations.
• Caisson Manufacturing Equipment Rental Business (케이슨제작설비 임대사업) Rental of caisson manufacturing equipment for port and marine construction projects; offered as the only service in Korea with a documented caisson production equipment delivery track record. Targets port authorities, contractors, and developers undertaking caisson-based marine construction.
• Equipment Safety Service Business (장비안전용역사업) Safety inspection, supervision, and compliance services for construction equipment including tower crane supervision, construction lift safety supervision, non-destructive testing, and an autonomous inspection program. Designed for construction firms required to maintain regulatory safety compliance on equipment-intensive projects.
• SFD20000 Floating Dock 10,000-ton class floating dock used for caisson installation at major marine construction projects, including the Gajeodo Port typhoon damage restoration project since September 2014.
• SFD20001 Floating Dock 14,000-ton class floating dock deployed at the Vietnam Son Doung Port caisson project from March 2013 to June 2016, enabling overseas marine construction capabilities.
• FLOATING DOCK (15,000-ton class) 15,000-ton class floating dock deployed at the Jeju Naval Base project from June 2011 to May 2014, serving defense marine construction needs.
• S.E.P Barge Specialized marine barge vessel used for RCD pile construction at marine construction sites, including the Yeongjongdo Yeonyul Bridge Phase 2 project from April 1997 to March 2002.
• Pump Dredging Equipment (펌프준설) Pump dredging equipment for channel dredging operations at marine construction sites, supporting harbor and shipping channel construction projects.
• Oni Dredging Equipment (오니준설) Sludge dredging equipment used for pollution prevention and environmental remediation projects at marine construction sites.
• Gravel Dredging Equipment (그라브준설) Gravel dredging equipment for harbor construction and maritime infrastructure projects, including sediment disposal operations at major Korean ports.

Named customers7 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators3 records

Expansion highlights4 records

Direct peers

• Sarens: Belgian-based global crane rental and heavy lifting specialist serving construction, energy, and marine infrastructure projects. Comparable to Shinwoo in providing specialized high-capacity equipment (including for marine and port construction) on a rental/services basis to enterprise customers.
• Mammoet: Global leader in heavy lifting and marine construction equipment transport, with a large floating crane and dock fleet. Mammoet is comparable to Shinwoo as a specialized provider of high-capacity marine and heavy-lift equipment for port, offshore, and infrastructure projects.
• Tiong Woon Corporation: Singapore-headquartered heavy lift and transport specialist with marine equipment capabilities serving construction and offshore projects across Asia. Direct regional peer to Shinwoo in marine construction equipment and project-based heavy lifting services.

Regional players

• Kanamoto Co., Ltd. Japan's largest construction equipment rental company, offering a vertically integrated rental, sales, and maintenance model. Comparable to Shinwoo in business model and service breadth, though Kanamoto operates primarily in Japan rather than Korea.
• Nishimatsu Construction: Japanese general contractor with significant marine, port, and offshore construction capabilities including caisson and dredging work. Comparable to Shinwoo in marine construction project scope, though operates as a broader contractor in Japan rather than as a Korean equipment rental specialist.
• AKTIO Corporation: Major Japanese construction equipment rental company serving contractors and infrastructure projects across Japan. Comparable to Shinwoo in equipment rental model and customer base (enterprise construction firms), but serves the Japanese market.

Broad incumbents

• Daewoo E&C: Major Korean construction company executing large-scale marine, port, and bridge projects domestically and overseas. Overlaps with Shinwoo's end customers and project types but operates as a full-service contractor rather than an equipment rental specialist.
• POSCO E&C: Korean construction major active in port, marine, and civil infrastructure including dredging work that overlaps with Shinwoo's project portfolio. Functions as a customer-side incumbent rather than equipment rental peer, but competes for similar Korean infrastructure CAPEX.
• Hyundai Engineering & Construction: One of Korea's largest EPC contractors with in-house marine and port construction capabilities. Comparable to Shinwoo as a major Korean player in port and marine infrastructure, though Hyundai E&C is a much broader general contractor rather than a specialized equipment rental firm.

Others

• HD Hyundai Construction Equipment: Korean construction equipment manufacturer and rental arm of HD Hyundai, providing heavy machinery to construction firms. Adjacent to Shinwoo as a Korean industry participant in the construction equipment ecosystem, though primarily a manufacturer/rental-house rather than a marine construction specialist.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

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 SHINWOO