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Welcome to ABL Group

Longitude is the design and engineering arm of ABL Group - a global and independent consultancy delivering marine, energy, engineering and software solutions to drive safety and sustainability in renewables, maritime and oil & gas sectors. ABL Group operates across 43 countries worldwide.

About ABL Group
ABL Group Companies:

Proper Marine

Longitude's division in Brazil - specialists in naval architecture and offshore engineering.

View Website

ABL

The energy and marine consultants, delivering technical services to support offshore energy and maritime sectors at construction, operations, decommissioning and in marine casualty scenarios.

View Website

AGR

Engineering consultancy, skills resourcing, survey and software provider, specialising in wells, subsurface, and marine operations.

View Website
OWC - An ABL Group Company

OWC

The renewable energy consultants - providing technical advisory, engineering and consulting for the commercial-scale development of renewable energy onshore and offshore.

View Website
Longitude
An ABL Group Company Group Overview
Menu
  • About Us
  • Sectors
    • Oil & Gas
    • Renewables
    • Defence
    • Commercial Maritime
    • Infrastructure
  • Services
    • Column One
      • Marine Operations Engineering
        • Offshore Installation
        • Module Transportation
        • Wind Farm Installation
        • Decommissioning
        • Site Specific Assessment (SSA)
        • Moorings, Umbilicals, Risers & Pipelines
        • Cable Installation
      • Site Investigations
        • Cable & Pipeline Risk
        • Site Characterisation
        • Survey Management
        • Seabed Morphology
        • Metocean Analysis
    • Column Two
      • Marine Design, Upgrade & Conversion
        • OSD-IMT: Vessel Design
        • Floating Production Systems
        • Jack-Up and Floating Rigs
        • Small Craft
        • Ships
        • Maritime Civil Engineering
        • Fixed Structures
        • Geotechnical Design
      • Advanced Analysis & Simulation
        • Computational Fluid Dynamics
        • Advanced Finite Element Analysis
        • Multibody Hydrodynamics
        • Dynamic Simulations
    • Column Three
      • Clean Shipping
        • Ballast Water Systems
        • Exhaust Gas Emissions Management
        • Hybrid Propulsion Systems
  • Our People
  • Our Offices
  • Case Studies
  • News
  • Careers
  • Contact Us
Home / Renewables

News & Events


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23 Oct 2025

Sector: Renewables

Asia Pacific offshore wind partnership for Longitude and Sinotech

Design and engineering consultancy Longitude has signed a memorandum of understanding (MoU) with Taiwanese Sinotech Engineering Consultants (Sinotech), to collaborate on offshore wind design and marine operations…


21 Oct 2025

Sector: Renewables

Longitude Engineering Strengthens Offshore Wind Foundation Design Team with New Industry Experts

Longitude Engineering is proud to announce the addition of Kim Sandvik and Espen Trøen Hansen to our offshore wind foundation design team. Both join as Principal Engineers and bring…


15 Oct 2025

Sector: Renewables Commercial Maritime

Longitude Contributes to Flagship US Cable Lay Barge

Cable Lay Barge (c) Crowley. Longitude, the engineering, design and analysis arm of…


12 Sep 2025

Sector: Renewables

Longitude and NGI in offshore wind design partnership

Design and engineering consultancy Longitude and the Norwegian Geotechnical Institute (NGI) have teamed up to provide developers and operators of offshore wind farms with an integrated technical…


9 Sep 2025

Sector: Oil & Gas Renewables

Longitude Appoints Johan Samad to Lead Facilities & Subsea Engineering in Asia Pacific

Longitude, the design and engineering arm of global consultancy ABL Group, has appointed seasoned energy industry professional Johan Samad as Regional Director to lead its Facilities & Subsea Engineering Division across Asia Pacific. …


4 Jul 2025

Sector: Renewables

Meet the Team: Arnaud Geffroy | Nantes

The team at ABL Group shares the passion, vision and values for working in energy and the world’s oceans, de-risking and driving the energy transition. We are…


16 Jun 2025

Sector: Renewables

Longitude Expands Offshore Wind Design with French Team

Longitude – the design and engineering consultants – has expanded its capability in offshore wind design with the integration of expert structural design and ocean engineering teams from its…


9 Jun 2025

Sector: Renewables

Meet the Team: Michael Sienko | Denmark

The team at ABL Group shares the passion, vision and values for working in energy and the world’s oceans, de-risking and driving the energy transition. We are…


3 Jun 2025

Sector: Commercial Maritime Oil & Gas Renewables

Future-Proofing Ship Design: Challenges and Opportunities from a Designer’s Perspective

In today’s rapidly evolving maritime industry, the need for future-proofing in ship design has never been more critical. Maritime and marine markets face numerous challenges, from the…


10 Apr 2025

Sector: Oil & Gas Renewables

ABL Group co-founder re-joins group in marine operations role

ABL Group co-founder and offshore energy and marine consultancy heavyweight Phil Lenox joins the international design and engineering consultancy Longitude as global director of its marine operations engineering…



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