What Metalock does

Metalock Brasil is a Brazilian specialized industrial and marine repair and maintenance engineering company headquartered in São Paulo, with primary workshops in Santos and additional operations in Rio de Janeiro. Founded in 1959 as part of the global Metalock International Association (MIA) network established in 1953, the company provides field-based and workshop-based engineering services across marine, offshore, and industrial sectors. Its core offering rests on two proprietary technologies: the Metalock Cold Stitching Repair process — a cold mechanical method for cracked or broken iron and steel castings originated in 1930s Texas oil fields to avoid welding fire hazards — and the SPS (Sandwich Plate System), a class-approved structural composite for maritime and offshore renewal.

The company monetizes primarily through project-based professional services — on-site machining, cold stitching, welding, electroplating, dynamic balancing, electrical rewinding, laser alignment, leak sealing, and lifeboat/davit certification — priced per engagement rather than via subscription or volume contracts. A second revenue layer consists of authorized service representations: Metalock Brasil is the in-Brazil technical service and parts channel for 60+ international OEMs including WEG, Wärtsilä, Emod Motoren, Taiyo, Hensoldt (Kelvin Hughes), Alphatron Marine, and ERMA FIRST, generating parts distribution revenue alongside certified service work. Customer base spans Brazilian Navy (submarine rescue vessel work), Greek container shipping operators, thermo-electric power plants (Wärtsilä engine block repair), heavy industrial steel mills, and São Paulo automotive manufacturers (1600-ton press emergency machining).

Distribution is direct — specialized technicians are deployed to client vessels, platforms, and industrial sites across Brazil with reach into the Caribbean — supported by a global backup network through MIA's 70+ country footprint. The company holds classification society approvals from Lloyd's Register, DNV GL, Bureau Veritas, ABS, RINA, ClassNK, and multiple flag-state authorities, together with ISO 9001:2015 and Petrobras (CRC) qualified supplier status, which collectively constitute a critical regulatory barrier and a primary moat. With 101-250 employees and no disclosed funding or M&A activity, Metalock Brasil operates as a privately held, mature, self-funded specialty engineering services firm.

Name

Metalock

Legal name

Metalock Brasil

Website

https://metalock.com.br

Company type

Private

Founded year

1959

Operating status

Operating

Headcount range

101–250 employees

Short description

Metalock Brasil is a Brazilian specialized marine, offshore, and industrial repair engineering firm applying proprietary cold stitching and SPS structural composite technologies, serving shipping operators, Petrobras-adjacent offshore clients, power generators, steel mills, and automotive manufacturers via three workshops and field-deployed technician crews.

Ownership category

akta.pro rank

Product category

Industrial Maintenance & Repair Services

NAICS

Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers (332812)

SIC

Miscellaneous Fabricated Metal Products (3490), Sheet Metal Work (3444)

akta.pro primary industry

Steel Fabrication & Marine Engineering (Custom Fabrication, Modifications, Conversions) (TLAHAMAH)

akta.pro secondary industries

Hull & Structural Repair (Steel/Aluminum, Plate Renewal, Coatings Prep) (TLAHAMAB), Hull, Structure & Steelwork Repair (TLAKAKAE), Welding, Fabrication & Field Machining Services (On-site) (IMAIACAD)

Keywords

• Cold stitching repair
• In-situ machining
• Marine maintenance engineering
• Offshore structural repair
• Industrial field services

Headquarters

HQ city

São Paulo

HQ country

Brazil

HQ region

Latin America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Marine & Offshore Repair Services: On-site repair and maintenance services for vessels, offshore platforms, and marine equipment including cold stitching, machining, welding, and electrical services. Revenue generated through service contracts and project-based engagements.
2. Authorized Service Representation: As authorized representative for over 60 international equipment manufacturers, providing sales, technical support, spare parts, and after-sales service for brands including WEG, Emod Motoren, Taiyo, Hensoldt, and many others.
3. Industrial Repair Services: Maintenance engineering solutions for industrial customers including field machining, cold repair, welding, electroplating, and dynamic balancing services.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels4 records

Core offering

Metalock Brasil provides specialized on-site repair and maintenance engineering services for the marine, offshore, and industrial sectors. Its core offering is the proprietary Metalock® Cold Stitching Repair process for cracked or broken iron and steel castings, complemented by the SPS (Sandwich Plate System) for class-approved structural composite repairs. The company operates as a one-stop-shop with in-situ machining, dynamic balancing, electrical motor rewinding, electroplating, welding, leak sealing, marine electronics, diesel engine overhaul, and lifeboat/davit inspection services, delivered through three workshops in Santos, Rio de Janeiro, and São Paulo and 60+ authorized service representations.

Product overview

Metalock is a repair and engineering services company operating in Marine, Offshore, and Industrial sectors. The core offering is Metalock® Cold Stitching Repair technology, complemented by the SPS (Sandwich Plate System) for class-approved structural repairs. Services include In Situ Machining, Dynamic Balancing, Electrical Services, Electroplating, Diesel Engine Service, Marine Electronics, Lifeboat/Davit Services, Laser Alignment, Welding, and Leak Sealing. Metalock operates as a One-Stop-Shop with 60+ Authorized Service Representations covering equipment from manufacturers like WEG, Yanmar, Hensoldt, and others. With 65 years of experience and 3 workshops in Santos, Rio de Janeiro, and São Paulo, the company provides both corrective and preventive maintenance solutions.

Differentiator

Problem solved

Functional benefit

Brands

• Metalock Cold Stitching Repair: High-tech cold repair process for cracked or broken iron and steel castings that originated in the 1930s
• SPS Technology (Sandwich Plate System)

Products and services

• Metalock Cold Stitching Repair High-tech cold repair process for cracked and broken iron and steel castings, applied on-site at customer marine, offshore, and industrial sites. The process restores mechanical rigidity and surface alignment without hot work, eliminating welding fire hazards and avoiding introduction of new stresses to the base material.
• SPS (Sandwich Plate System) Structural Repair Class-approved structural composite material consisting of two metal plates bonded by Elastocore polyurethane elastomer core, used for restoring and exceeding original structural capacity of marine and offshore assets without hot work. Reported as up to 11x more cost-effective, up to 90% less labor, and 3x faster than traditional crop-and-renew methods.
• In Situ Machining On-site machining services including boring, facing, grinding, milling, cutting, drilling, and honing performed at the equipment installation site, eliminating the need for equipment disassembly and transportation.
• Dynamic Balancing of Rotating Parts Dynamic balancing service for rotating equipment such as rotors, impellers, turbines, shafts, and fans, with handling capacity up to 3000kg, 1600mm diameter, and 2000mm length.
• Electrical Services Low voltage rotary electric equipment rewinding for AC and DC motors and generators, preventive and corrective maintenance, panel repairs, and authorized technical assistance for WEG, Emod Motoren, and Taiyo.
• Electroplating Electrolytic process depositing metallic solutions onto base metal to fill damaged surfaces caused by wear, material failures, or impacts. Applied on cast iron, carbon steel, stainless steel, bronze, and chrome materials.
• Diesel Engines Service Overhaul and general maintenance of medium and large diesel engines including cylinder covers, pistons, connecting rods, engine blocks, pumps, crank and camshafts, bearings, governors, turbines, piping, automation, and hydraulics.
• Marine Electronics Marine electronic equipment services and authorized repairs for radar and navigation manufacturers including Hensoldt (Kelvin Hughes), covering VDR, AIS, and navigation systems under NK, BV, and ABS certifications.
• Lifeboats, Davits and Launching Devices Service Regulatory inspections and maintenance services for lifeboats, davits, release gear, and life-saving appliances, certified by Bureau Veritas, DNV GL, Lloyd's Register, RINA, ABS, Panama Flag Authority, Liberia Register Authority, DPC, Bahamas, and CLASS-NK.
• Laser Alignment Laser alignment services for industrial and marine equipment to ensure precise installation and prevent mechanical failures.
• Welding and Plate Work Specialized welding services for equipment and structure recovery including press structures, press cylinders, press shells, and general machine component recovery, certified by Lloyd's Register.
• On Line Leak Sealing Leak sealing services for pipes and pressure vessels without shutdown or hot work, preventing environmental hazards and production losses.
• Fuji Metalock Products Resale Resale and authorized representation of Fuji Metalock branded products via www.fujimetalock.com.br.

Quantifiable outcome

• SPS repairs require up to 90% less labor compared to traditional crop and renew methods
• +3 more outcomes

Named customers5 records

Segments2 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

Ten partnerships are on record, tiered core and major.

• SPS TechnologycoreTechnology or IntegrationSPS Technology developed and commercializes the Sandwich Plate System (SPS), a proprietary structural composite material. Metalock Brasil is a licensed network partner for SPS technology, offering class-approved structural repair solutions for offshore and maritime applications.
• WEGcoreChannel Partner/ Reseller/ DistributorWEG is a Brazilian multinational electric motor manufacturer. Metalock Brasil is an authorized technical service provider for WEG low voltage asynchronous induction motors, providing sales support and technical assistance.
• Emod MotorenmajorChannel Partner/ Reseller/ DistributorEmod Motoren GmbH is a German electric motor manufacturer. Metalock Brasil is an authorized technical service provider for Emod Motoren products in Brazil.
• Hensoldt (Kelvin Hughes)majorChannel Partner/ Reseller/ DistributorKelvin Hughes Ltd is a world leader in maritime radar and navigation systems. Metalock Brasil is an authorized repairer for Hensoldt/Kelvin Hughes radar equipment including X-Band radar and navigation systems.
• Metalock International Association (MIA)coreStrategic or Co-development PartnerMIA was created in 1953 and promotes development of technical knowledge and material research for cold repair services. The association operates in 70+ countries and holds annual conferences worldwide.
• ISES (International Ship Engineering Service Association)majorStrategic or Co-development PartnerISES is an association of marine equipment manufacturers and repairers that promotes annual meetings for industry professionals to exchange ideas and stay updated on common interests.
• Taiyo ElectricmajorChannel Partner/ Reseller/ DistributorTaiyo Electric is a 100-year-old Japanese engineering company supplying electric motors up to 3000kW, generators up to 6000kVA+, and control panels. Metalock Brasil is an authorized technical service provider.
• Alphatron MarinemajorChannel Partner/ Reseller/ DistributorAlphatron Marine specializes in high-performance electronic and technological solutions for maritime navigation and communication. Owned by JRC with headquarters in Tokyo, Japan.
• ERMA FIRSTmajorChannel Partner/ Reseller/ DistributorERMA FIRST is a pioneer in ballast water treatment systems development, essential for marine ecosystem protection and international standards compliance.
• WärtsilämajorChannel Partner/ Reseller/ DistributorWärtsilä is a global leader in smart technologies and complete lifecycle solutions for the marine and energy markets. Metalock Brasil sends technicians for specialized training at Wärtsilä facilities.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Regional players

• Cooltech (formerly Cool Torque): Cooltech provides on-site machining, line boring, and industrial field services across Europe — comparable technical offering to Metalock's in-situ machining, though primarily Europe-focused.
• ABS Group: ABS Group provides industrial inspection, asset integrity, and marine services globally; though US-headquartered, it competes for the same class-approved repair and integrity work that Metalock performs for marine and offshore clients.

Direct peers

• Hydratight (Enerpac): Hydratight provides on-site machining, controlled bolting, and flange management for marine, offshore, and industrial customers — directly comparable to Metalock's in-situ machining and field maintenance offering.
• Team Inc. Team Industrial Services delivers on-site machining, field machining, and specialty mechanical services to the power, oil & gas, and industrial markets — overlapping with Metalock's industrial repair and field machining portfolio.
• Serradura Metalock (Metalock International member): Serradura is another Metalock International Association member operating in Spain/Portugal, providing the same proprietary Metalock cold stitching process — directly comparable in technique, technology, and customer category.

Broad incumbents

• Wärtsilä Services: Wärtsilä's Services division delivers engine maintenance, repair, and lifecycle support globally, including in Brazil where Metalock is a partner. Comparable in marine engine repair but vastly larger and OEM-tied.
• MISTRAS Group: MISTRAS provides mechanical services, in-situ machining, and inspection/non-destructive testing to industrial and energy markets — overlapping with Metalock's industrial maintenance offering at larger scale.
• Bureau Veritas Marine & Offshore: Bureau Veritas provides marine classification and asset integrity services including repair oversight; overlaps with Metalock's class-approved structural repair activity through shared certification standards and customer relationships.
• Sulzer: Sulzer's Rotating Equipment Services division repairs and overhauls pumps, compressors, and turbomachinery for industrial and marine customers globally — comparable in rotating-equipment repair scope though much larger and broader.

Emerging players

• T.I.E. (Technical Industrial Engineering): T.I.E. provides specialized on-site machining, flange management, and field services for industrial and oil & gas clients — comparable to Metalock's industrial maintenance segment, particularly relevant as the European MIA network peer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

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Compliance15 records

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 Metalock