What Castoldi does

Castoldi S.r.L. is a privately held Italian manufacturer of marine waterjet propulsion systems and luxury jet tenders, founded in 1962 and headquartered in Albairate near Milan. The company operates an 18,000 m² integrated facility (8,000 m² of production sheds, plus a water basin for vessel trials) and has shipped more than 40,000 waterjet units across 40+ countries. The business is built on two interconnected product lines: (1) the Turbodrive series of waterjet propulsion units (impeller diameters from 224 mm to 600 mm, in D.D., L.V.T., H.C., and H.C.T. variants) featuring an integrated heavy-duty gearbox with hydraulic multi-disc clutch, the proprietary Clear-Duct unclogging system, titanium impeller liners, and the ACES modular electronic control system (CAN bus, up to six stations, with bow thruster, autopilot, dynamic positioning, smart anchor, and USV interfaces); and (2) the Jet Tender line of luxury superyacht tenders (4.28 m to 10.50 m), including SOLAS-certified rescue variants with self-righting systems, and the newly launched Jet Tender 34 LIMO enclosed-cabin limousine tender.

Castoldi serves three primary customer verticals: military and coast guard (patrol boats, fast attack craft, landing craft, USVs, RHIBs), commercial workboats (fire-fighting vessels, pilot boats, crew boats, ferries, fishery vessels, SAR), and the superyacht segment (luxury tenders and SOLAS rescue boats). Named end-users include the Italian Navy, Italian Customs, Carabinieri, the Spanish Coast Guard, and Guardacostas de Galicia. The company qualifies for major naval procurement through ISO 9001 certification and compliance with Classification Registers (ABS, BV, DNV, RINA, RMRS, RRR), with SOLAS Type Approval on rescue tenders.

The business model is direct-to-customer hardware sales of high-ASP specialty marine equipment, supported by a global distributor and service network (including named partners MHT Korea and Performance Marine Defence Solution in Qatar). Pricing is not publicly disclosed; products are manufactured to specification with customization options. Distribution is primarily manufacturer-direct to shipyards, navies, and superyacht builders, supplemented by regional channel partners. Revenue streams consist of waterjet propulsion system sales (Turbodrive) and luxury jet tender sales (Jet Tender), with bespoke customization driving per-unit ASP. Marketing is concentrated in international maritime exhibitions (METS, Kormarine, Asia Pacific Maritime, DIMDEX), the company website, and Instagram. The company is family-owned with no disclosed external funding, subsidiaries, or M&A activity.

Name

Castoldi

Legal name

Castoldi S.r.L.

Website

https://castoldijet.it

Company type

Private

Founded year

1962

Operating status

Operating

Headcount range

11–50 employees

Short description

Castoldi S.r.L. is an Italian manufacturer founded in 1962 that designs and produces Turbodrive marine waterjet propulsion systems and luxury Jet Tenders for superyacht, military, coast guard, and commercial workboat customers worldwide from its Albairate facility near Milan.

Ownership category

akta.pro rank

Product category

Marine Waterjet Propulsion Systems

NAICS

Ship Building and Repairing (336611), Ship and Boat Building (33661), Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing (333612)

SIC

Ship & Boat Building & Repairing (3730), Pumps & Pumping Equipment (3561)

akta.pro primary industry

Propellers & Waterjets (IMAJAHAE)

akta.pro secondary industries

Luxury Yacht Tenders & Support Craft Manufacturing (IMAJAMAK), Propulsion Drives, Gearboxes & Shaftlines (IMAJAHAD), Propulsion MRO, Spares & Field Service (Overhauls, retrofits, upgrades) (IMAJAHAN)

Keywords

• Marine waterjet propulsion
• Superyacht jet tenders
• Integrated marine gearboxes
• SOLAS rescue tenders
• Military patrol boat propulsion

Headquarters

HQ city

Albiate

HQ country

Italy

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Waterjet Propulsion Systems: Castoldi manufactures and sells waterjet propulsion systems (Turbodrive series) to military, commercial, and pleasure vessel operators worldwide. Revenue is generated through direct sales of waterjet units with various power ratings and configurations.
2. Jet Tenders: Production and sale of luxury jet tenders for superyachts, including SOLAS-certified rescue tenders. Products are mass-produced with customization options for colors, materials, and upholstery to match owner requirements.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Castoldi designs, manufactures, and sells marine waterjet propulsion systems (Turbodrive series, ranging from 224mm to 600mm impeller diameters, with integrated gearboxes, hydraulic clutches, and the proprietary Clear-Duct unclogging system) and luxury waterjet-powered superyacht tenders (Jet Tender series from JT 14 to JT 34 LIMO, including SOLAS-certified rescue variants). All products are engineered and produced in-house at Castoldi's 18,000 m² facility near Milan, Italy, with classification-society compliance (ABS, BV, DNV, RINA, RMRS, RRR) and the proprietary ACES electronic control system.

Product overview

Castoldi manufactures marine waterjet propulsion systems and luxury jet tenders from its Italian facility. The product portfolio consists of two interconnected lines: (1) Turbodrive waterjet propulsion systems ranging from 224mm to 600mm impeller diameter, offered in H.C.T. (High Capacity with Transmission), H.C., L.V.T. (Light Version), and D.D. (Direct Drive) configurations with integrated gearboxes, hydraulic clutches, and the proprietary Clear-Duct unclogging system; and (2) Jet Tender luxury superyacht tenders spanning 4.28m to 10.50m in length, featuring Castoldi waterjet propulsion, diesel engines, and advanced ACES electronic control systems. The Jet Tender line includes SOLAS-certified rescue models with self-righting systems. All products are designed, manufactured, and quality-controlled in-house at the 18,000 m2 facility near Milan, with water basin testing and final quality checks.

Differentiator

Problem solved

Functional benefit

Brands

• Turbodrive: Marine waterjet propulsion system product line including models TD 224 D.D., TD 240 H.C.T./L.V.T., TD 284 H.C.T./L.V.T., TD 340 H.C., TD 400 H.C.T., TD 490 H.C.T., and TD 600 H.C.T.
• Jet Tender
• ACES

Products and services

• Turbodrive 224 D.D. waterjet propulsion system Compact waterjet propulsion system with 224mm impeller diameter, direct-matched to the engine through the impeller without an integrated gearbox. Stainless steel impeller housing and impeller; 61.7 kg dry weight; up to 147 kW (200 mHP) power input. Targets smaller commercial and pleasure craft needing simple, light, tough propulsion.
• Turbodrive 240 H.C.T. waterjet propulsion system Smallest model equipped with integrated gearbox and hydraulic multi-disc clutch. Redesigned using advanced CFD software for significantly increased static and dynamic thrust with improved cavitation resistance via a new micro-cast 4-blade axial flow impeller in AISI 316 L stainless steel. Lightest, most complete, and efficient waterjet in its class.
• Turbodrive 240 L.V.T. waterjet propulsion system Light Version variant without built-in hydraulic multi-disc clutch. Mechanically operated movable debris screen grid instead of electric/hydraulic. Cost-effective, tough unit with integrated gearbox and wide ratio range — also suitable for matching electric motors.
• Turbodrive 284 H.C.T. waterjet propulsion system First model of Castoldi's new ground-breaking waterjet family developed via advanced CFD research. Delivers higher static thrust and increased speed efficiency vs. the predecessor, with optimized steering and reversing actuators for higher precision and minimal performance loss while turning. Designed for high-speed commercial, military, and pleasure applications.
• Turbodrive 284 L.V.T. waterjet propulsion system Light Version variant without built-in hydraulic multi-disc clutch and with mechanically operated debris screen grid. Cost-effective, tough unit with integrated gearbox suitable for all engines; suitable for matching electric motors.
• Turbodrive 340 H.C. waterjet propulsion system Successor to the Turbodrive 337, incorporating many improved design features first introduced with the Turbodrive 400 H.C. Configurable with the innovative Clear-Duct unclogging system and the ACES Electronic Control System.
• Turbodrive 400 H.C.T. waterjet propulsion system Next evolution in the high-efficiency H.C.T. family, released February 2025. Advanced hydrodynamic design with superior thrust and enhanced propulsive efficiency across all speed ranges, plus a redesigned steering system with exceptional precision and minimal speed loss during turns. Equipped with integrated gearbox (multiple ratio options), Clear-Duct unclogging system, and ACES Electronic Control System. Perfectly interchangeable with its predecessor for straightforward retrofitting without hull modifications.
• Turbodrive 490 H.C.T. waterjet propulsion system High-propulsive-efficiency waterjet launched in 2024 with outstanding static and dynamic thrust and an integrated heavy-duty gearbox with multiple gear ratios. Duplex micro-cast stainless steel impeller, titanium liner, hard-anodizing anti-corrosion treatment with three layers of paint, Clear-Duct unclogging system, integrated interceptors, and ACES electronic control system with dynamic position keeping, smart anchor, and autopilot integration.
• Turbodrive 600 H.C.T. waterjet propulsion system Large, innovative high-efficiency propulsion system launched in 2023 after four years of CAD and CFD research. First waterjet of this size with integrated heavy-duty certified gearbox, multi-disc hydraulic clutch, Clear-Duct unclogging system, and integrated interceptor. Features dual hydraulic cylinders for the reversing bucket, titanium wear ring, Duplex investment-cast stainless-steel impeller, and ACES electronic control system with dynamic position keeping, unmanned interface, and autopilot integration.
• ACES Electronic Control System Modular, software-configurable electronic control system based on modern CAN bus technology, using separate microprocessor control units (IP 67) connectable in various combinations to build a vessel control system. Expandable from one to six control stations. Available across Castoldi's waterjet range from TD 240 H.C. to TD 600 H.C.T. Supports bow thruster, autopilot, dynamic positioning, smart anchor, and USV remote control interfaces.
• Jet Tender 14 luxury superyacht tender 4.28m compact jet tender with 110 mHP engine, Castoldi Turbodrive 224 D.D. waterjet, 7-passenger capacity, 790 kg dry weight. Designed for superyacht tenders with waterjet propulsion for safety (no exposed propellers).
• Jet Tender 14 RB / SOLAS rescue tender SOLAS-certified rescue variant of the Jet Tender 14 with 5+1 passenger capacity under SOLAS Directive, 110 mHP SOLAS engine, 860 kg dry weight.
• Jet Tender 15 luxury superyacht tender 4.58m jet tender with 110 mHP engine, 7-passenger capacity, 820 kg dry weight. Positioned in the Castoldi Jet Tender lineup between the JT 14 and JT 16.
• Jet Tender 16 luxury superyacht tender 5.06m jet tender with 110 mHP engine, 8-passenger capacity, 860 kg dry weight.
• Jet Tender 17 luxury superyacht tender 5.38m jet tender with 110 mHP engine, 9-passenger capacity, 990 kg dry weight. Recent featured image dated 2025-05 indicates an active product update or reissue on the Castoldi website.
• Jet Tender 18 luxury superyacht tender 5.68m jet tender with 230 mHP engine, 9-passenger capacity, 1,230 kg dry weight.
• Jet Tender 18 RB / SOLAS rescue tender SOLAS-certified rescue variant of the Jet Tender 18 with 5+1 passenger capacity under SOLAS Directive, 230 mHP SOLAS engine, 1,319 kg dry weight. Features a self-righting system integrated into the stern peak.
• Jet Tender 19 luxury superyacht tender 5.98m jet tender with 230 mHP engine, 10-passenger capacity, 1,270 kg dry weight. Completely redesigned with restyled superstructure, roomier seating, new driving console, and deep V hull for a smoother, safer ride.
• Jet Tender 19 RB / SOLAS rescue tender SOLAS-certified rescue variant of the Jet Tender 19 with 5+1 passenger capacity under SOLAS Directive, 230 mHP SOLAS engine, 1,363 kg dry weight. Features the R.I.SE.R peak (Recessed Inflatable Self Righting System), fire-retardant resin construction, and a self-righting system.
• Jet Tender 21 luxury superyacht tender 6.30m jet tender with 250 mHP Yanmar diesel, Turbodrive 240 H.C.T. with hydraulic clutch and movable grid, 12-passenger capacity, 1,580 kg dry weight, 37 knots light-loaded speed.
• Jet Tender 23 luxury superyacht tender 7.00m jet tender with 250-370 mHP engine options, 14-passenger capacity, 1,850-1,950 kg dry weight, up to 45 knots light-loaded speed. Features GPS/multifunction display with digital switching, stereo, VHF, and Castoldi stainless steel single lever control.
• Jet Tender 25 luxury superyacht tender 7.50m luxury jet tender with 250-370 mHP Yanmar diesel options, Turbodrive 284 H.C.T. with hydraulic clutch, movable grid and Clear-Duct system, 16-passenger capacity, up to 41 knots light-loaded speed. Electrically actuated folding console, quick in-out tube system, anchor with electric windlass, marine cork decking, and comprehensive electronic systems.
• Jet Tender 28 luxury superyacht tender 8.60m jet tender with 370 mHP Yanmar diesel, 16-passenger capacity, 2,480 kg dry weight, 38 knots light-loaded speed. Features marine toilet with washbasin, fresh water shower, recessed bow shelter, and comprehensive comfort amenities.
• Jet Tender 34 LIMO luxury superyacht limousine tender 10.50m luxury superyacht limousine tender launched in October 2025 with enclosed cabin featuring air conditioning and heating, complete pantry with built-in refrigeration, private head with marine toilet, 400L structural fuel tank, and gull-wing hinged doors. Equipped with twin 250 mHP Yanmar diesel engines, twin Turbodrive 284 H.C.T. waterjets with hydraulic clutch and Clear-Duct system, ACES electronic control system with joystick docking, widescreen multifunction display with digital switching, and retractable bimini top. Accommodates 12+2 passengers with a top speed of 35 knots.

Quantifiable outcome

• Crash stop capability: boat can stop within 1.5 times its length
• +2 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration34 records

Feature7 records

Partnerships

Three partnerships are on record, tiered core.

• Performance Marine Defence Solution (Qatar)coreChannel Partner/ Reseller/ DistributorPerformance Marine Defence Solution serves as Castoldi's representative in Qatar for defense applications. They built an advanced USV (Unmanned Surface Vessel) platform powered by twin Turbodrive 284 H.C.T. waterjets and ACES electronic control system, showcased at DIMDEX 2025 in Doha.
• MHT KoreacoreChannel Partner/ Reseller/ DistributorMHT Korea is Castoldi's distributor and representative in Korea, showcasing products at Kormarine exhibition in Busan.
• Engine Manufacturers (Yanmar, Volvo Penta, Caterpillar, MAN, Cummins, Scania, FPT)coreTechnology or IntegrationCastoldi waterjets are designed to integrate with engines from major manufacturers including Yanmar, Volvo Penta, Caterpillar, MAN, Cummins, Scania, FPT, Steyr, Hyundai, and Seatek. Each waterjet model has specific coupling kits for these engines.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Pascoe International: Pascoe International is a UK-based manufacturer of waterjet-powered superyacht tenders, directly competing with Castoldi in the luxury jet tender segment with overlapping SOLAS-certified rescue boat offerings.
• HamiltonJet: HamiltonJet is the New Zealand-based global market leader in waterjet propulsion systems, directly competing with Castoldi's Turbodrive line across commercial, military, and pleasure craft applications with comparable impeller and gearbox technology.
• Williams Jet Tenders: Williams Jet Tenders is a UK-based manufacturer of jet-powered superyacht tenders, directly competing with Castoldi's Jet Tender range using similar waterjet propulsion in comparable size and luxury segments.
• Novurania: Novurania is a US-based manufacturer of luxury yacht tenders and RIBs, competing directly with Castoldi's Jet Tender line in the superyacht companion/limousine tender market with comparable customization and SOLAS rescue variants.

Broad incumbents

• Rolls-Royce (Kamewa): Rolls-Royce historically owned Kamewa waterjets (now sold to Wärtsilä) and remains a broader marine propulsion and naval systems incumbent with overlapping capability in military and commercial waterjet markets relevant to Castoldi.
• Wärtsilä: Wärtsilä is a Finnish marine technology major that inherited the Kamewa waterjet business, offering waterjet propulsion as part of a much broader portfolio of ship engines, propulsion, and lifecycle services, competing with Castoldi in commercial and naval waterjet segments.

Regional players

• Lomac Nautica: Lomac is an Italian RIB and tender manufacturer with overlapping product positioning in the Mediterranean superyacht tender market, sharing Italian design heritage and superyacht distribution channels with Castoldi.

Emerging players

• Cockwells Modern & Classic Boat Building: Cockwells is a UK-based boutique luxury tender and superyacht launch builder, overlapping with Castoldi's Jet Tender line in the high-end custom tender segment with comparable focus on bespoke craftsmanship and premium clients.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Instagraminstagram.com/castoldijet
• LinkedInlinkedin.com/company/castoldi-s-p-a-

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

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 Castoldi