Schiffsdieseltechnik Kiel

What Schiffsdieseltechnik Kiel does

Schiffsdieseltechnik Kiel (SDT-Kiel) is a privately held maritime diesel engineering firm headquartered in Kiel, Germany, operating since 1979 across three divisions: SDT Aggregatebau, which builds custom diesel generator sets integrating engines from partner manufacturers including MTU, FPT Industrial, and John Deere; SDT Service, an authorized MTU service partner providing maintenance, repair, and spare parts via an online marketplace (Schnäppchenmarkt); and SDT Energietechnik, the energy technology division supplying power solutions for maritime and industrial use.

Name

Schiffsdieseltechnik Kiel

Legal name

Schiffsdieseltechnik Kiel

Website

https://sdt-kiel.de

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

51–100 employees

Ownership category

akta.pro rank

Product category

Marine Diesel Engineering and Genset Manufacturing

NAICS

Engine, Turbine, and Power Transmission Equipment Manufacturing (3336), Ship Building and Repairing (336611)

SIC

Engines & Turbines (3510), Special Industry Machinery (No Metalworking Machinery) (3550)

akta.pro industry

PRIMARYIMAJAHAA

Marine Diesel & Dual-Fuel Engines

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

SECONDARYIMAJAHAM

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

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

SECONDARYTLAHAMAI

Retrofits, Upgrades & Compliance Conversions (Scrubbers, BWTS, Alternative Fuels, Energy-Saving Devices)

Transportation & Logistics/Ports, Terminals & Maritime Services/Ship Repair, Dry Docking & Marine Engineering Services

Keywords

• Marine diesel engines
• Genset manufacturing
• Ship engine service
• Marine propulsion systems
• Power generation systems

Headquarters

HQ city

Rendsburg

HQ country

Germany

HQ region

Europe

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Distribution channels1 record

Core offering

Schiffsdieseltechnik Kiel is a maritime diesel engineering company that manufactures custom diesel generator sets (gensets) and provides specialized maintenance, repair, and service for marine diesel engines and propulsion systems. Operating under three divisions—SDT Aggregatebau (custom genset manufacturing integrating MTU, FPT Industrial, and John Deere engines), SDT Service (authorized MTU service, engine maintenance, and repair), and SDT Energietechnik (energy solutions)—the company serves commercial marine operators globally. An in-house test bench facility supports three parallel genset operations for motors up to 7.2 MW with water vortex braking up to 4 MW.

Product overview

Schiffsdieseltechnik Kiel (SDT) operates as a maritime diesel engineering company with three main divisions: SDT Aggregatebau (genset manufacturing), SDT Service (maintenance/repair), and SDT Energietechnik (energy solutions). The company builds custom diesel generator sets incorporating engines from partner manufacturers including MTU, FPT Industrial, and John Deere. SDT owns a testing facility capable of parallel testing of three gensets up to 7.2 MW with water vortex braking up to 4 MW. The company has 45 years of service experience in the maritime sector.

Differentiator

Problem solved

Functional benefit

Brands

• SDT Aggregatebau: Aggregate construction division of Schiffsdieseltechnik Kiel, providing gensets and power solutions for maritime applications.
• SDT Service
• SDT Energietechnik

Products and services

• SDT Aggregatebau Custom-built diesel generator set (genset) manufacturing division for maritime applications. Engineers and assembles power systems integrating engines from MTU, FPT Industrial, and John Deere, tailored to specific vessel power and propulsion requirements for commercial marine operators.
• SDT Service Maintenance, repair, and technical service for marine diesel engines, gears, and generator sets. Includes authorized MTU service partnership work, supported by a spare parts marketplace (Schnäppchenmarkt). Mission statement: 'the motor must run' — focused on maximizing uptime for maritime operators.
• SDT Energietechnik Energy technology division providing power solutions for maritime and industrial applications, complementary to the genset manufacturing and service core business.
• Schnäppchenmarkt (Spare Parts Marketplace) Spare parts marketplace offering marine diesel engine and genset replacement parts to maritime service customers.

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration8 records

Feature1 record

Partnerships

One partnership is on record.

• MTUcoreTechnology or IntegrationMTU is a key technology partner providing marine diesel engine systems. SDT-Kiel operates as an MTU service partner, offering maintenance, repair, and support services for MTU marine engines. SDT Service division specializes in MTU products.

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• MAN Energy Solutions: Leading manufacturer of large two-stroke and four-stroke marine diesel engines with a global PrimeServ service network. Directly competes with SDT in marine diesel service and propulsion integration, with significantly broader product scope and geographic reach.
• Caterpillar Marine Power: Major supplier of marine diesel engines and generator sets with a global dealer service network. Competes directly with SDT's genset manufacturing and engine service offerings and shares John Deere as a competing engine supplier.
• ABB Marine & Ports: Global supplier of marine propulsion, power, and automation systems including electric and hybrid drivetrains. Adjacent competitor on marine power systems with a much broader portfolio including alternative-fuel-ready technologies.
• Wärtsilä: Global marine engine OEM and lifecycle service provider. Competes with SDT at the engine level and offers in-house authorized service that competes with SDT's MTU service partnership, while operating at vastly greater scale across all vessel classes.
• Cummins Marine: Global manufacturer of marine diesel engines and generator sets with a worldwide authorized service network. Competes with SDT Aggregatebau on marine gensets and with SDT Service on engine maintenance and parts, with deeper OEM-direct capabilities.

Direct peers

• Kötter Marine Engineers: German maritime engineering and service firm providing marine engine and propulsion system support. Highly comparable as a domestic German competitor in marine diesel service, working on similar MTU and other OEM platforms.
• Northern Lights: US-based manufacturer of marine generator sets and propulsion systems, listed as one of SDT's integration partners. Directly comparable marine genset product overlap, with overlapping customer base in commercial and workboat segments.
• Fischer Panda: German manufacturer of marine generator sets (typically smaller kVA range than SDT's up-to-7.2 MW systems). Directly comparable product overlap on custom marine gensets, with a similar specialty mid-sized positioning in the European maritime market.
• Motoren- und Service GmbH (M&S): Authorized MTU service partner in Germany offering marine diesel engine maintenance and repair. Closest direct peer in the SDT Service division's core authorized-MTU-service activity, with overlapping geographic coverage in northern Germany.

Others

• Servogear: Norwegian manufacturer of marine propulsion (controllable-pitch propellers and hybrid systems), listed as an SDT technology partner. Thematically related as a marine propulsion supplier SDT integrates rather than directly competes with at the genset/engine level.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Schiffsdieseltechnik Kiel