What Cosider does

Cosider Groupe is an Algerian state-owned economic enterprise (Entreprise Publique Economique) founded in 1979 and headquartered in Algiers, operating as a vertically integrated multi-specialty construction group. The company executes large-scale public infrastructure across transport (highways, railways, metro, ports), water security (desalination plants, hydraulic dams, canalization networks), energy transport (gas and oil pipelines for Sonatrach), and mass housing programs under Algerian government ministries and state-owned enterprises as its near-exclusive customer base. Operational depth is delivered through 11 wholly-owned subsidiaries covering the full project lifecycle — Cosider Travaux Publics (public works), Cosider Canalisations (pipelines and desalination), Cosider Construction (buildings, 75,000+ housing units completed), Cosider Ouvrages d'Art (bridges, viaducts, tunnels), Cosider Carrières (23 quarries), Cosider Promotion (real estate), Cosider Alrem (equipment maintenance), Cosider Engineering (design and master contracting), Cosider Géotechnique (specialized foundations, formerly TEIXCO), Cosider Agrico (agriculture), and Cazda.

The group's underlying technology spans large-diameter pipeline construction (42"–48" gasoducs, in-line valve stations, river crossings), seawater reverse osmosis desalination plant construction, pre-stressed concrete bridge and viaduct construction, and specialized geotechnical engineering (large-diameter piles 500–1500mm, diaphragm walls, jet grouting) — supported by an ISO/IEC 17025 accredited Central Materials Laboratory (LCM). Asset base includes 2,339+ items of heavy equipment in the Canalisations subsidiary alone, a 40 km/year concrete pipe manufacturing facility in Chlef, and production assets for ductile iron pipes via the ALCOSAM joint venture.

The business model is project-based contracting under one-time license revenue mechanics, with all major revenue derived from government public tenders or negotiated state contracts. Pricing is not publicly disclosed and contracts are awarded by ministries (Public Works, Water Resources, Transport, Housing, Health, Higher Education, Defense) and state enterprises (Sonatrach, Sonelgaz, ADE, ANA, EMA, ANESRIF, SAA, CNAS). Secondary revenue streams include aggregates and materials sales, equipment rental, real estate promotion, and agricultural production on concession lands. The go-to-market motion is enterprise field sales targeting government decision-makers and project directors across all 58 Algerian wilayas, with no commercial marketing or consumer distribution channels.

Name

Cosider

Legal name

COSIDER GROUPE

Website

https://cosider-groupe.dz

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Cosider Groupe is an Algerian state-owned construction conglomerate (founded 1979) executing highways, pipelines, desalination plants, metro, bridges, and housing for government ministries and state enterprises like Sonatrach through 11 vertically integrated subsidiaries.

Ownership category

akta.pro rank

Product category

Civil Engineering and Public Works Construction

NAICS

Heavy and Civil Engineering Construction (237), Utility System Construction (2371), Nonresidential Building Construction (2362)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), General Bldg Contractors - Nonresidential Bldgs (1540), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Commercial General Contracting (New Build) (IMAFAAAA)

Keywords

• Civil engineering construction
• Public works infrastructure
• Pipeline construction services
• Building construction contracting
• Aggregates quarrying production

Headquarters

HQ city

Algiers

HQ country

Algeria

HQ region

Africa

Offices15 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Public Infrastructure Construction Contracts: Project-based contracts for large-scale public infrastructure including highways, railways, bridges, tunnels, and hydraulic systems awarded through government tender processes.
2. Building and Housing Construction: Construction of residential (LPL, LPA, AADL, LPP housing programs), commercial, and institutional buildings for government and private clients. Revenue is one-time per project.
3. Pipeline and Canalization Works: Construction of oil/gas pipelines and water canalization systems for Sonatrach, Sonelgaz, and water authorities under project-based contracts.
4. Aggregates and Construction Materials: Production and sale of aggregates (sand, gravel, crushed stone, ballast, rockfill) from company-owned quarries for internal use and external sales.
5. Equipment Maintenance and Rental: Vehicle and heavy equipment maintenance services and equipment rental through Cosider Alrem subsidiary.
6. Real Estate Promotion: Development and sale of promotional housing and commercial real estate through Cosider Promotion.
7. Engineering and Design Services: Technical studies, master contracting (maîtrise d'ouvrage déléguée), and engineering design services through Cosider Engineering.
8. Agricultural Production: Cereal cultivation, livestock farming, aquaculture, and orchard production through Cosider Agrico on concession lands.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Cosider Groupe is an Algerian state-owned construction and engineering conglomerate that executes large-scale public infrastructure projects including highways, bridges, tunnels, metro systems, oil and gas pipelines, water canalizations, seawater desalination plants, residential and commercial buildings, and quarried aggregates. The group operates through 11 wholly-owned subsidiaries covering public works, pipelines, building construction, specialty structures, quarrying, real estate promotion, equipment maintenance, engineering design, geotechnical works, and agricultural development, delivering end-to-end infrastructure solutions from feasibility studies through construction and commissioning.

Differentiator

Problem solved

Functional benefit

Products and services

• Public Works Construction (Cosider Travaux Publics) Large-scale public infrastructure construction including highways, roads, bridges, tunnels, railways, metro systems, and maritime works for government ministries and public agencies. The subsidiary is the group's principal public works arm with operations across all Algerian wilayas and emerging international presence in Tunisia.
• Pipeline and Canalization Construction (Cosider Canalisations) Construction of high-pressure oil and gas pipelines, water canalization systems, pumping stations, and seawater desalination plants for Sonatrach, Sonelgaz, and water authorities. The subsidiary has constructed over 3,000 km of pipelines including 42-inch and 48-inch diameter gasoducs with complex in-line valve stations.
• Building and Housing Construction (Cosider Construction) Construction of residential housing (LPL, LPA, AADL, LPP, promotional programs), commercial buildings, institutional facilities, hospitals, universities, and office towers for government and private clients. Over 75,000 housing units completed or under study across all housing programs.
• Specialty Structures Construction (Cosider Ouvrages d'Art) Design and construction of complex bridge structures including pre-stressed concrete bridges, pushed bridges, cable-stayed pedestrian bridges, multi-span viaducts, and tunnels for highway and railway crossings. Covers both railway viaducts and tunnel boring works including the Pic des Pigeons Tunnel at Hammam Melouane.
• Aggregates and Construction Materials (Cosider Carrières) Production and sale of aggregates including sand, gravel, crushed stone, ballast, and rockfill from company-owned quarries and river concessions for internal use by group subsidiaries and external sales to the construction market. Operates 23 deposits and quarries including 20 limestone, 1 gypsum, and 2 sand quarries.
• Real Estate Promotion (Cosider Promotion) Development and direct sale of promotional housing units (LPA, LPP) and commercial real estate to individual buyers and businesses through the company's commercial division. ISO 9001:2015 certified since December 2021.
• Equipment Maintenance and Rental (Cosider Alrem) Vehicle and heavy equipment maintenance services and equipment rental for the group's construction fleet, operating across three units in Rouiba, Blida, and M'Sila. Supports maintenance needs for Cosider's 2,339+ items of heavy equipment for pipeline works alone.
• Engineering and Design Services (Cosider Engineering) Technical studies, master contracting (maîtrise d'ouvrage déléguée), execution engineering, diagnosis, expertise, and feasibility studies for group projects and external clients. Cosider Engineering designed the Ecole Supérieure de la Sécurité Sociale which received the 2017 Presidential Architecture Award.
• Geotechnical Engineering (Cosider Géotechnique) Specialized foundation engineering including large-diameter piles (500-1500mm), diaphragm walls, jet grouting, and anchor systems for infrastructure projects. Capabilities were developed through the former TEIXCO Spa joint venture with Portuguese firm Teixeira Duarte from 2006 to 2015.
• Agricultural Production (Cosider Agrico) Cereal cultivation, livestock farming, aquaculture, and orchard production on concessional public lands operated by government land agencies. Active perimeters include Khenchela (2,700 hectares), Touggourt (4,022 hectares), and Adrar. Triple ISO certified (9001, 14001, 45001) since July 2023.
• Materials Testing and Quality Control (Cosider LCM) ISO/IEC 17025 accredited materials testing laboratory performing concrete compression testing, geotechnical analysis, hydrocarbon product testing, and chemical analyses for construction materials quality assurance across the group's projects and external clients.

Quantifiable outcome

• Cosider Canalisations constructed over 3,000 km of pipelines for Sonatrach including the 536 km GR4 gasoduc
• +3 more outcomes

Named customers14 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Samsun Makina Sanayi (Turkey)coreStrategic or Co-development Partner · 2 March 2019Joint venture for the creation of ALCOSAM, a ductile iron pipe manufacturing plant in Algeria. The shareholder pact was signed on March 2, 2019, and the groundbreaking ceremony was held on March 4, 2019, presided over by the Minister of Water Resources. The 18-month project aims to produce ductile iron pipes for the national market and for export, creating new employment opportunities.
• Teixeira Duarte (Portugal)coreStrategic or Co-development Partner · 1 July 2006Joint venture partnership from 2006 to 2015 created the company TEIXCO Spa (50/50 with Cosider) to develop geotechnical and special foundation engineering capabilities. The joint venture allowed Cosider engineers and technicians to accumulate proven expertise in special foundations, deep drilling, and anchoring techniques. In July 2015, Cosider acquired the remaining shares from the Portuguese partner, fully nationalizing the company as Cosider Géotechnique.
• Snc Lavalin (Canada)minorStrategic or Co-development PartnerCollaborated with Snc Lavalin on the drinking water supply project (SAA) for Algiers, involving the design and execution of pumping and treatment infrastructure as part of the water security program.

Scale indicators22 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Arab Contractors: Egyptian state-owned construction group with comparable multi-subsidiary structure spanning buildings, roads, bridges, tunnels, pipelines, and airports across MENA and Africa. Like Cosider, it is a state-affiliated general contractor executing flagship national infrastructure for government clients.
• El Seif Engineering Contracting: Major Saudi general contractor executing buildings, infrastructure, and civil works for government and state-owned clients in MENA. Comparable scope of work, client base, and project types to Cosider's portfolio.
• STFA Group (Sefine/Demir): Turkish marine and infrastructure contractor with strong pipeline, port, and offshore capabilities analogous to Cosider Canalisations. Both groups serve state-owned energy companies on large-diameter pipeline and maritime construction.

Broad incumbents

• Enka İnşaat: Turkish global EPC contractor with established MENA operations across power plants, infrastructure, pipelines, and buildings. Comparable in scale and multi-sector general contracting scope to Cosider, though more internationally diversified.
• Limak Construction: Turkish multi-sector construction group active across airports, ports, highways, dams, pipelines, and buildings with significant MENA project exposure. Comparable in capital-intensive civil works scope and integrated project delivery model.
• Kalyon Group: Turkish diversified infrastructure group with construction, energy, and concession businesses active in MENA. Comparable multi-disciplinary infrastructure delivery profile and active in competing for Algerian and regional mega-projects.
• Saudi Binladin Group: Saudi Arabia's largest construction conglomerate executing mega-projects (towers, airports, infrastructure, housing) for state-owned clients. Closely comparable as a state-relationship-driven, large-scale general contractor in a Gulf/North African context.
• Shapoorji Pallonji Group: Indian diversified conglomerate with construction, infrastructure, real estate, and engineering operations across MENA and Africa. Comparable in multi-subsidiary integration from contracting through to real estate promotion.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCDGgJ0z521cHLRcdFK8sjrg
• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company-beta/24973944
• Instagraminstagram.com/lcmcosider

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Subsidiaries12 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 Cosider