What Proper Marine does

Proper Marine is a Brazilian naval and offshore engineering consultancy founded in 2010 by naval engineers Bernardo Xavier and Guilherme Leal and headquartered in Rio de Janeiro. Since April 2024, the company has operated as Longitude South America, the Brazilian and Latin American division of Longitude, the global projects and engineering arm of ABL Group, providing access to a 200+ person network spanning more than 15 countries. The firm delivers specialised engineering services including vessel conversion (notably PSV to OTSV, RSV, and WSV), structural integrity management, life extension studies for offshore platforms, FPSO and platform decommissioning, marine operations support, and digital transformation solutions. Proprietary and co-developed technical capabilities include 3D scanning and dimensional inspection, bathymetric simulation, the Naval Digital Tracking tool (with Hull Vane), and a Digital Twin for BOP and integrity management platform (with Vidya Technology), underpinned by an exclusive Brazilian representation of Hull Vane energy-saving technology since 2016.

The company's client base is dominated by major oil and gas operators, shipowners, and EPC contractors, including Petrobras (5-year frame agreement signed 2023), SBM Offshore, MODEC, PRIO, Trident Energy, Equinor, Subsea7, TechnipFMC, DOF Subsea, Solstad, Wilson Sons, and Vale. Proper Marine has completed more than 1,800 projects for over 160 clients since founding, including complex engagements such as the Stellar Banner salvage (145,000 tonnes of iron ore removed, 111 km vessel relocation in 2020), the Belov Mares OTSV conversion (2023), and FPSO Capixaba decommissioning engineering.

Revenue is generated through project-based professional services, often delivered under multi-year frame agreements with enterprise clients and supplemented by deployment of offshore supervision personnel (campaigns of 400+ on-board personnel). The go-to-market is enterprise field sales, with senior leadership directly engaged in contract negotiations and client relationships. Pricing is quote-based and not publicly disclosed. With 80+ multidisciplinary professionals in Brazil, the firm has also expanded into adjacent verticals including offshore wind engineering and decommissioning through its integration with Longitude and ABL Group.

Name

Proper Marine

Legal name

Proper Marine

Website

https://propermarine.com

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Short description

Proper Marine is a Brazilian naval and offshore engineering consultancy that delivers vessel conversion, structural integrity management, decommissioning, and Digital Twin solutions to oil and gas operators, shipowners, and energy companies across Latin America.

Ownership category

akta.pro rank

Product category

Maritime Engineering Services

NAICS

Ship Building and Repairing (336611), Support Activities for Water Transportation (4883)

SIC

Ship & Boat Building & Repairing (3730)

akta.pro primary industry

Project Management & Owner’s Engineering / Technical Consultancy (Spec Writing, Bid Support, Site Support) (IMAJAGAO)

akta.pro secondary industries

Safety, Risk & Compliance Engineering (SOLAS, Class Rules, HAZID/HAZOP, FMEA) (IMAJAGAJ), Stability, Weight & Load Analysis (Intact/Damage Stability, Weight Control) (IMAJAGAI), Marine Systems Commissioning, Testing & Certification Support (TLAKAKAM), Marine Electrical Installation, Commissioning & Field Services (IMAJAJAL)

Keywords

• Maritime engineering services
• Naval architecture consulting
• Offshore structural integrity
• Vessel conversion engineering
• FPSO life extension

Headquarters

HQ city

Rio De Janeiro

HQ country

Brazil

HQ region

Latin America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting and Technical Services: Professional services revenue from specialized engineering consulting, structural integrity analyses, regulatory compliance, marine operations support, and technical project management. Billed on a project basis, often through multi-year frame agreements with major oil & gas operators.
2. Vessel Conversion and Repair Projects: Project-based revenue from vessel conversion (PSV to OTSV), ship repair, docking, and structural modification engineering services. Includes detailed engineering, fabrication support, and commissioning support.
3. Offshore Operations Support: Onshore and offshore supervision services, FPSO support, crew management, logistics coordination, and daily reporting for offshore campaigns. Revenue generated through service contracts.
4. Digital Twin and Technology Solutions: Digital transformation services including Digital Twin implementation, Naval Digital Tracking, and IHM (Inventory of Hazardous Materials) reports. Value-added technology services that complement core engineering offerings.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels8 records

Core offering

Proper Marine is a maritime engineering consultancy providing project engineering solutions, naval and offshore consulting, and maritime consultancy services to enterprise clients in the oil & gas, shipping, and offshore wind sectors. Core offerings span engineering consulting and regulatory analysis, vessel design/conversion/repair, structural integrity management and life extension, offshore operations support, hazardous materials inventory (IHM), and 3D scanning — supplemented by proprietary Digital Twin and Naval Digital Tracking solutions developed with partners Hull Vane and Vidya Technology.

Product overview

Proper Marine is a maritime engineering consultancy that provides a portfolio of integrated services rather than a unified software product. The core offerings span six main service areas: Engineering Consulting and Analysis, Vessel Design/Conversion/Repair, Asset Integrity Management and Life Extension, Operations Support, Hazardous Materials Inventory (IHM), and 3D Scanning. Additionally, through partnerships, the company offers specialized solutions including Naval Digital Tracking (with Hull Vane for structural analysis and maintenance optimization) and Digital Twin for BOP (with Vidya Technology for integrated data management). The company serves the offshore oil & gas, maritime, and renewable energy sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Consultoria e Análises de Engenharia (Engineering Consulting and Analysis) Specialized consulting services for regulatory and statutory compliance, including procedures for sea trials, inclination tests, and load tests, ensuring technical responsibility for vessels and projects before CREA. Designed for shipowners, operators, and offshore asset owners requiring certified engineering sign-off.
• Projetos de Embarcação, Conversão e Reparo (Vessel Design, Conversion and Repair) Engineering solutions for vessel docking activities, structural integrity, steel replacement, and reinforcement implementations, utilizing 3D scanning for dimensional inspections. Includes PSV-to-OTSV, PSV-to-RSV, and PSV-to-WSV conversion engineering for shipowners and operators.
• Gestão de Integridade e Extensão de Vida Útil (Integrity Management and Life Extension) Analyses and digital transformation technologies to extend the operational life of offshore units, reduce maintenance costs, and optimize unit performance through structural integrity management. Targeted at offshore oil & gas operators looking to defer newbuild capex.
• Suporte a Operação (Offshore Operations Support) Engineering projects and consultancy for maritime operations including lifting, towing, tugboat specification and maneuvering, berthing, anchoring, docking, cargo securing, installation, and integration. Includes onshore and offshore supervision for FPSO campaigns and offshore logistics coordination.
• IHM - Inventário de Materiais Perigosos (Hazardous Materials Inventory) Report that identifies and quantifies hazardous materials used in vessels or offshore installations, essential for risk management and informed decision-making throughout the lifecycle and for compliance with the IMO Hong Kong Convention.
• Escaneamento 3D (3D Scanning Service) 3D scanning technology used in vessel projects for creating detailed three-dimensional images and data that optimize vessel components, improving efficiency and precision in construction, conversion, and repair workflows.
• Naval Digital Tracking Tool created in partnership with Hull Vane for structural analysis and naval maintenance optimization, addressing challenges such as thickness loss, temporary repairs, structural assessment, and HSE risks. Offered as a partner technology solution alongside engineering services.
• Digital Twin para BOP (Digital Twin for Blowout Preventer) Digital Twin solution for blowout preventer developed in partnership with Vidya Technology, integrating systems, operational data, maintenance databases, and 3D models through artificial intelligence for continuous data flow between drilling rig and platform.

Quantifiable outcome

• 145,000 tonnes of iron ore cargo successfully removed and vessel relocated 111 km from shore during Stellar Banner salvage, completed during pandemic conditions
• +6 more outcomes

Named customers21 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Five partnerships are on record, tiered core.

• ABL Group / Longitude EngineeringcoreStrategic or Co-development Partner · 1 January 2024In April 2024, ABL Group announced the acquisition of Proper Marine, which now operates as Longitude South America — the Brazilian and Latin American division of Longitude, the global projects and engineering arm of ABL Group. This integration provides access to 15+ countries and more than 200 professionals globally.
• ArdentcoreStrategic or Co-development Partner · 1 January 2020Collaboration with Ardent, a specialized salvage company, on one of the most challenging projects in Proper Marine's history: the rescue of the Stellar Banner merchant vessel in 2020. Ardent led the salvage operation while Proper Marine provided all engineering analyses, 3D modeling, and bathymetric simulations.
• SmithcoreStrategic or Co-development Partner · 1 January 2020Collaboration with Smith, a specialized salvage company, on the Stellar Banner rescue operation in 2020. Smith worked alongside Ardent and Proper Marine's engineering team during the complex salvage involving 145,000 tonnes of iron ore cargo removal and vessel relocation 111 km from São Luís.
• Hull VanecoreTechnology or Integration · 1 January 2016Partnership since 2016 for exclusive representation of Hull Vane technology in Brazil. Hull Vane is an innovative fixed wing device installed at the stern of displacement or semi-displacement vessels that generates lift force to reduce resistance, resulting in fuel consumption reduction or increased speed. This partnership also produced the Naval Digital Tracking tool for structural analysis and maintenance optimization.
• Vidya TechnologycoreTechnology or IntegrationPartnership with Vidya to offer advanced digital solutions for the maritime industry. Specializing in digital solutions with extensive experience in Oil & Gas plants, Vidya provides the Digital Twin for BOP (Blowout Preventer) solution that integrates systems, operational data, maintenance, databases, and 3D models in a single location through AI. The partnership also developed a custom integrity management system based on digital twin technology for offshore platforms.

Scale indicators13 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• COWI: International engineering consultancy with strong offshore wind, marine, and structural engineering practices. Comparable to Proper Marine in offshore structural engineering, foundation design, and offshore energy transition services, though COWI is much larger and more diversified.
• Crest Consultants: Engineering consultancy specializing in design solutions for semi-submersibles and FPSOs, with over three decades of experience. Has an active partnership with Proper Marine and is a direct comparable in naval architecture and offshore engineering project delivery.
• Longitude Engineering: Global projects and engineering arm of ABL Group and now the parent brand of Proper Marine (renamed Longitude South America). Offers the same portfolio of ship design, offshore engineering, marine operations, and asset integrity services globally, making it the most directly comparable peer.
• Aqualis (part of ABL Group): Sister company within ABL Group providing offshore marine warranty survey, engineering, and consultancy services globally. Highly comparable in scope (offshore engineering and marine operations) and serves many of the same oil & gas, FPSO, and offshore wind clients as Proper Marine.

Regional players

• SBM Offshore: Major FPSO lessor and operator, also a customer of Proper Marine. Similar to MODEC, SBM has in-house offshore engineering capabilities and is a key counterpart in Brazilian offshore FPSO projects including decommissioning work Proper Marine supports.
• MODEC: Major FPSO operator and customer of Proper Marine. While primarily an FPSO provider rather than an engineering consultancy, MODEC operates its own offshore engineering teams and competes indirectly for engineering scopes within FPSO life extension and operations support projects.

Broad incumbents

• DNV: Global classification society and maritime advisory providing ship classification, offshore engineering, integrity management, and energy transition services. Larger and broader than Proper Marine but competes directly in marine engineering consultancy, structural integrity, and offshore certification.
• Wood Group: Global engineering and consulting firm with significant offshore engineering, subsea, and asset integrity capabilities. Competes with Proper Marine on offshore engineering consultancy for major oil & gas operators and on FPSO life extension and decommissioning projects.
• Bureau Veritas Marine & Offshore: Classification society and offshore engineering consultancy offering ship classification, marine warranty, offshore verification, and asset integrity services. Competes with Proper Marine in vessel certification, offshore structural integrity, and life extension studies.
• RINA: Classification society and marine engineering consultancy providing ship design review, offshore engineering, and energy transition services. Overlaps directly with Proper Marine's vessel design, conversion, and integrity management offerings, though RINA has much broader geographic and service coverage.

Market position

Strengths1 record

Weaknesses1 record

Competitive moat6 records

Key risks1 record

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@ProperMarine
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• Instagraminstagram.com/proper.marine

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

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 Proper Marine