Navaltagus

What Navaltagus does

Navaltagus – Reparação e Construção Naval, S.A. is a Portuguese naval engineering, shipbuilding, and ship-repair company headquartered in Seixal on the left bank of the Tagus River, within the Porto de Lisboa jurisdiction. It operates a 30,000 m² shipyard equipped with three slipway ramps (200/200/150m), a dry dock for vessels up to 64m, a 100m outfitting pier, and workshops with up to 25-ton lifting capacity. The company processes ~200 tons of steel per year, averages ~49 vessel repairs and >35 annual dockings, and has built 14 vessels over its 40+ year operating history (founded ~1983). It employs 51–100 staff and is wholly owned by GRUPO ETE, the largest Portuguese maritime, port, and river operator (50+ companies across 5 countries).

The company delivers three service lines: Ship Repair (steelwork, mechanical, electrical, electronic, piping, carpentry, high-pressure washing up to 700 bar, airless painting, and non-invasive diagnostics for small/medium vessels including floating cranes, tugs, barges, and docking pontoons); Ship Building (turnkey construction of Bureau Veritas-certified electric ferryboats using Danfoss propulsion and Shift Batteries energy storage, multifunction tugboats, mooring boats, pilot boats, passenger/tourism vessels, and aluminum craft); and Engineering (design and fabrication of custom handling equipment such as CE-marked C-hooks with 360° rotation, 40-foot flat cars, port trusses, gangway ladders, and hydrographic sounder supports for naval vessels). Notable technical deliverables include the EFB3709 electric ferryboat (37.4m, 252 passengers, 19 vehicles, 9 knots, dual 200kW azimuth thrusters) for the Município de Aveiro and the MC2310 multifunction tugboat (22.95m, 2×750 HP, 12-ton bollard pull, integrated 7-ton crane) for APDL.

The business model is B2B project-based: revenue is generated through three streams — ship repair services and engineering services (professional services) and ship construction (hardware/turnkey). GTM is consultative enterprise sales through direct technical relationships with port authorities, municipalities, terminal operators, and shipping companies, supplemented by GRUPO ETE network referrals. Pricing is not publicly disclosed; contracts are quoted per project. The company is privately held, holds ISO 9001:2015, 14001:2015, and 27001:2013 certifications, operates only in Portugal by direct delivery, and reaches international markets indirectly through GRUPO ETE partnerships.

Name

Navaltagus

Legal name

NAVALTAGUS – Reparação e Construção Naval, S.A.

Website

https://navaltagus.pt

Company type

Private

Founded year

1983

Operating status

Operating

Headcount range

51–100 employees

Short description

Navaltagus is a Portuguese shipbuilding and naval engineering firm providing vessel repair, new vessel construction (electric ferries, multifunction tugboats, mooring and pilot boats), and custom steel fabrication to port authorities, municipalities, and maritime operators from its Seixal shipyard; it is a wholly-owned subsidiary of GRUPO ETE.

Ownership category

akta.pro rank

Product category

Shipbuilding and Marine Repair Services

NAICS

Ship Building and Repairing (336611)

SIC

Ship & Boat Building & Repairing (3730)

akta.pro primary industry

Naval & Government Vessel Maintenance & Modernization (TLAKAKAB)

akta.pro secondary industries

Hull, Structure & Steelwork Repair (TLAKAKAE), Mechanical Systems Repair (Engines, Propulsion, Pumps) (TLAKAKAF), Project Management & Owner’s Engineering / Technical Consultancy (Spec Writing, Bid Support, Site Support) (IMAJAGAO)

Keywords

• Ship repair services
• Naval engineering
• Vessel construction
• Marine fabrication
• Shipbuilding services

Headquarters

HQ city

Seixal

HQ country

Portugal

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure

Revenue model

1. Ship Repair Services: Maintenance, repair, requalification and conservation services for small and medium-sized vessels including dry dock services, steelwork, mechanical, electrical, electronic, piping, carpentry work. Services include cleaning, painting, pickling with high pressure washing (200-700 bar) and airless painting.
2. Ship Construction: New vessel construction including electric ferryboats, multifunction tugboats, mooring boats, pilot boats, passenger crafts and aluminum vessels. Turnkey solutions with in-house design and construction capabilities.
3. Engineering Services: Custom engineering projects including design and fabrication of handling equipment (C-Hooks, Flat Cars, port trusses), structural modifications, and specialized marine equipment.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Navaltagus operates its own shipyard in Seixal, Portugal, providing three lines of work: ship repair (maintenance, requalification, conservation and surface treatment for small and medium-sized vessels including floating cranes, tugs, barges and docking pontoons), ship building (custom construction of electric ferryboats, multifunction tugboats, mooring boats, pilot boats, passenger crafts and aluminum vessels), and engineering (design and fabrication of handling equipment such as C-hooks, flat cars, port trusses, gangway ladders and custom marine structures). All work is delivered on a turnkey, tailor-made basis from in-house engineering through to commissioning, with class-society certification by Bureau Veritas and ISO 9001/14001/27001 compliance.

Product overview

Navaltagus is a Portuguese naval engineering, repair, and shipbuilding company that offers three core service lines: Ship Repair Services (maintenance, requalification, conservation with steelwork, mechanical, electrical, piping, and diagnostics), Ship Building Services (construction of electric ferries, tugboats, mooring boats, pilot boats, and passenger vessels), and Engineering Services (design and fabrication of handling equipment, C-hooks, spreaders, flat cars, and custom marine structures). The company operates its own shipyard facilities in Seixal, Lisbon, with slipway, dry dock, outfitting pier, and workshops, serving clients such as municipalities, port authorities, and Grupo ETE across Portugal and internationally.

Differentiator

Problem solved

Functional benefit

Products and services

• Ship Repair Services Comprehensive maintenance, repair, requalification and conservation services for small and medium-sized vessels including floating cranes, tugs, barges and docking pontoons. Covers steelwork, mechanical, piping, insulation, electrical and electronic, automation, carpentry and non-invasive diagnostics, delivered at own Seixal shipyard or via onboard teams at client locations.
• Ship Building Services Custom construction of small and medium-sized vessels including electric ferryboats, multifunction tugboats, mooring boats, pilot boats, passenger crafts and aluminum vessels, delivered on a turnkey basis with in-house design, engineering and construction.
• Engineering Services Design, development and fabrication of handling tools, steel structures and specialized naval equipment, including C-hooks, spreaders, flat cars, gangway ladders, port trusses and custom marine structures for port terminals and vessel operators.
• Electric Ferryboat EFB3709 (Salicórnia) 37.4 m electric ferryboat carrying 252 passengers and 19 vehicles, 9-knot speed, with Danfoss propulsion system and Shift Batteries 511 kW energy storage, Bureau Veritas certified. Intended for municipal ferry service.
• Multi Craft MC2310 (Cachão da Valeira) 22.95 m multifunction tugboat with 2x750 HP engines, 9-knot speed, 12-ton bollard pull and 7t integrated crane, Bureau Veritas certified for coastal and river operations.
• Multi Craft MC1306 (Punta Tigre) 13.80 m multifunction tugboat / pusher with 2x285 HP engines, 5.9-ton bollard pull, designed for river transport operations.
• Mooring Boat MB1004 (Fuzelhas) 10.424 m mooring boat with 1x180 HP engine, 8-knot speed, 1.5-ton bollard pull, designed for 2-person mooring crew operations.
• Mooring Boat MB1204 11.55 m mooring boat with 1x180 HP engine, 10-knot speed.
• Tourism Boats TB1204 series (MH1 Marujo, MH2 Luar, MH3 Fadista, MH4 Amora) 12.50 m tourist passenger boat series with 2x137 HP engines, 11-knot speed, 24-ton displacement and 54-passenger capacity.
• Pusher Tug PT1609 (Baía do Seixal) 16.5 m pusher tug with 2x720 HP engines, 8-knot speed, retractable bridge and Bureau Veritas class notation.
• Aluminum Craft TB0703 7.50 m aluminum boat with 1200 kg displacement, 100–250 HP engine range, 200L fuel and 55L water tanks, 8-passenger capacity.
• Pilot Boat PB1604 (Eira) 15.75 m pilot boat with 770 HP engine, 19.1 km/h maximum speed and 1300 kg bollard pull.
• Portal Gantry Structure (Treliça Portuária 12250mm) 12,250 mm lattice-shaped gantry structure for coupling to loader, made of carbon steel with welded construction, 2,440 kg weight.
• Flat Cars 40'' model FC 40_9_02 40-foot container-shaped flat car for vehicle transport up to 1,800 kg with SWL 9,000 kg, CE marked, fabricated with HEB200 steel beam, 12x2.35x2.7 m.
• C-Hook 90° CH 30-2.5 C-Hook with 360° rotation and 30-ton SWL for coil loading, slim design for closed cargo trailers, fabricated from 40–50 mm steel plate.
• C-Hook 90° CH 23-2.5 C-Hook with 360° rotation and 23-ton SWL for coil loading, fabricated from 50 mm steel plate with WPS up to 100 mm.
• C-Hook Spreader CHS 30 C-Hook spreader with 30-ton SWL for ship coil loading/unloading, 2,500x2,300x0,500 m, 1,900 kg.
• Gangway Ladder EP11-30 Aluminum gangway ladder, 11 m length with 5-ton SWL, WPS up to 12 mm.
• Hydrographic Sounder Support for NRP Almirante Gago Coutinho AISI 316L stainless steel support structure for hydrographic sounder, custom designed for the Portuguese naval research vessel.
• Surface Treatment Services Precision mechanical descaling, high-pressure water jet technology (200–700 bar), painting, medium and high-pressure water washing, and tank cleaning for vessels and marine structures.
• Workshop Services General electrical work, piping, carpentry, steelwork in steel and aluminum, welding, oxycutting, plasma cutting, metal structure construction and repair, and mechanical repairs for onboard equipment.

Quantifiable outcome

• 35+ annual dockings capacity
• +2 more outcomes

Named customers6 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

Feature5 records

Partnerships

One partnership is on record.

• GRUPO ETEcoreStrategic or Co-development PartnerNAVALTAGUS is a wholly-owned subsidiary of GRUPO ETE - the largest Portuguese maritime, port and river operator founded over 80 years ago. GRUPO ETE incorporates over 40 companies with complementary functions and is the largest Portuguese port terminal operator, largest Portuguese cargo shipping company, Iberian leader in inland water transport, and market leader in shipping agency in Portuguese ports. GRUPO ETE provides NAVALTAGUS with solid maritime-port and river knowledge, customer relationships, and cross-selling opportunities across its ecosystem.

Scale indicators12 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Astilleros Armón: Spanish shipbuilder operating multiple small-to-medium vessel shipyards across Spain, building tugs, fishing vessels, offshore and passenger craft. Directly comparable in vessel size envelope, product mix (tugboats, ferries, workboats), and Iberian market positioning.
• Construcciones Navales P. Freire: Vigo-based Spanish shipyard focused on small and medium-sized vessels including tugs, fishing vessels and offshore support. Closest Iberian peer by scale, vessel classes and customer profile.
• Estaleiros Navais do Mondego: Portuguese shipbuilding and repair yard in Figueira da Foz, operating slipway facilities for small/medium vessels. Direct domestic competitor for ship repair, conversion and newbuild work in Portugal.
• Westcon Yards: Norwegian network of small and medium-sized shipyards offering newbuild, repair and conversion services for offshore, fishing and coastal vessels. Comparable by multi-yard model, vessel size focus and engineering integration.
• Metalships & Docks: Spanish shipbuilder in Vigo constructing tugs, offshore vessels, fishing boats and small commercial craft. Comparable product mix (tugboats and workboats), Iberian market presence and mid-size shipyard operations.

Broad incumbents

• Damen Shipyards Group: Dutch global shipbuilding group with standardized small/medium vessel ranges (tugs, workboats, ferries, patrol). Competes in the same vessel categories but with vastly greater scale, geographic reach and serial production.
• Navantia: Spanish state-owned shipbuilder active in naval, offshore and commercial vessels including smaller ferries and workboats. Overlaps with Navaltagus in government and naval vessel work but operates at significantly larger scale.

Regional players

• Vahali Shipyards: Croatian shipyard building small/medium tugs, pushers, ferries and service vessels, with strong inland waterway expertise on the Danube. Comparable vessel size and product range but serves a different (Central European) geography.
• Martifer Naval: Portuguese metalworking and naval division of Martifer Group, active in shipbuilding and metal structures for marine applications. Domestic peer with overlap in steel fabrication and naval engineering services.

Emerging players

• CMB.TECH: Belgian maritime technology group developing and operating hydrogen- and battery-powered vessels including small ferries and tugboats. Comparable positioning around alternative-fuel small vessels and Bureau Veritas-classed newbuilds.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/Navaltagus
• LinkedInlinkedin.com/company/navaltagus
• Instagraminstagram.com/navaltagus

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 Navaltagus