LO

Longitude

Maltepe, Istanbul, Turkey

OtherWindHydrogenSubsidiary
Founded 2006201-500 employees
Profile last updated: May 11, 2026

About

Founded in 2006, Longitude is a subsidiary headquartered in Maltepe, Istanbul, Turkey with approximately 201-500 employees specializing in Other, Wind, Hydrogen.

Longitude is an independent engineering and design consultancy, part of the ABL Group, founded in 2006 and operating from more than 15 countries. It provides facilities and subsea engineering, marine design, marine operations engineering, asset integrity management, field development and decommissioning services for oil and gas, maritime and renewable energy clients. Its renewable work includes offshore wind foundation and substation design and engineering for green hydrogen and decarbonisation initiatives, alongside its core offshore energy and marine business.

Headquarters

Maltepe, Istanbul, Turkey

Founded

2006

Employees

201-500

Company type

Subsidiary

Focus areas

engineeringmarine engineeringnaval architecturefacilities and subseaoffshore winddecarbonisationdecommissioningasset integrity managementfield developmentgreen hydrogenbrownfield modificationsmarine operations

Products & services

Business models

B2B

Value chain

EngineeringConsultingAdvisoryDevelopmentAsset Management

Service areas (2)

  • Offshore wind engineering

    Offshore wind foundation design from concept and FEED to detailed design, plus substation foundation design and project management.

  • Decarbonisation engineering

    Engineered decarbonisation strategies for offshore and subsea facilities, including electrification, flare reduction and carbon capture.

Locations

Headquarters

Çinar Mah., Kadir Has Cad., Nidapark Küçükyali Sedef Sit C01 Blok Diş Kapi 55c, 3484, Maltepe, Istanbul, Turkey

Operating locations (18)

  • Park Centrale, Jose Maria del Mar St. cor Abad St., Regus Office 510, 5th Floor, Cebu, Philippines
  • Av. Hidalgo No. 5502, Edificio Altus 1er Piso, Col. La Herradura, Tampico, Tamaulipas, Mexico
  • Lot 1, Level 9, Menara Great Eastern 2, Jalan Ampang 50, Kuala Lumpur, Malaysia
  • Plot 5-Y, 1st Floor, Square No. 1258, Masaken Sheraton Area, Nozha District, Cairo, Egypt
  • 1st Floor, Northern & Shell Building, Lower Thames Street 10, London, United Kingdom
  • Level 8, Westralia Plaza, St Georges Terrace 167, Perth, WA, Australia
  • 6F-1, Sec.4, Xinyi Road 456, Taipei, Taiwan
  • 10613 W Sam Houston Parkway N, Suite 400, Houston, TX, United States
  • 4th floor, Grey Street 33-39, Newcastle upon Tyne, United Kingdom
  • Avenida Rio Branco, 11 andar, Centro 108, Rio de Janeiro, Brazil
  • Unit 36, City Quay, Camperdown Street, Dundee, United Kingdom
  • The Bulb, 2nd Floor, Nelson Gate, Southampton, United Kingdom
  • Via XII Ottobre 1, 6th Floor, Genoa, Italy
  • 26-1000 Windmill Road, Dartmouth, Nova Scotia, Canada
  • 11 Rue Arthur III, Nantes, France
  • Kings Wharf, Exeter, Devon, United Kingdom
  • Karenslyst allé 4, Oslo, Norway
  • Robinson Road, 09-01 112, Singapore, Singapore

Service regions

AmericasEuropeMiddle EastAfricaAsia Pacific

Projects

1

Offshore supervision project at UMS Venus

Offshore supervision project at the UMS Venus for SBM Offshore.

Client: SBM Offshore

Credentials & affiliations

Partnerships

ABL Group, AGR

People

Management & team (5)

+ 1 more

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