What Quarries and Materials North-East does

NEXSTONE (Carrières et Matériaux Nord-Est / CMNE) is a French aggregates and construction-materials platform operating 50 production and recycling sites across the Grand Est, Bourgogne/Franche-Comté, and Hauts-de-France regions. The company extracts and processes natural aggregates (calcareous, eruptive, and alluvionary materials) via quarrying, gravel pits, and sand pits, supplemented by recycled construction materials (300,000 tonnes/year) processed through Valormat-certified platforms, inert waste reception at ISDI installations (1 million tonnes/year), and trading of complementary products. Total annual commercialization reaches approximately 9 million tonnes, serving BTP professionals, public works contractors, concrete manufacturers (Holcim, Lafarge, EQIOM), railway infrastructure projects including LGV high-speed lines, prefabrication firms, traders, artisans, landscapers, individual consumers, and local authorities.

The company's revenue model is predominantly transactional (per-tonne unit pricing with delivery) across six streams: aggregate sales, recycled materials sales, trading/negoce materials, inert waste reception fees, transport services, and specialized products such as hydraulic-bound gravels and railway ballast. The go-to-market is hybrid: direct enterprise field sales to large construction and infrastructure customers (including COLAS Grands Travaux for the Grand Paris Express project), site-based retail sales to individual consumers and small contractors, and indirect sales through trader (négoce) resellers. Pricing is quote-based, not publicly disclosed, with volume discounts on large orders.

NEXSTONE is a wholly-owned subsidiary of Colas France (€54.1M capital, RCS Paris 329 338 883), operating as Colas Territoire Nord-Est, with Sylvain PORRET serving as Directeur Carrières Matériaux. The business differentiates through ISO 9001/14001, CE, and NF certifications; a private railway freight connection at Trapp/Raon L'Etape enabling Paris-region supply; specialty products including LGV-certified railway ballast and Pierre Bleue limestone; and a digital client portal (Espace Client NEXSTONE) for 24/7 order management. Distribution spans approximately 300 employees across the network, with recent site additions in 2015, 2017, and 2019 indicating continued geographic fill-in rather than transformation.

Name

Quarries and Materials North-East

Legal name

Colas France

Website

https://cmne-materiaux.fr

Company type

Private

Operating status

Operating

Headcount range

251–500 employees

Short description

NEXSTONE (Carrières et Matériaux Nord-Est) is a French aggregates and construction-materials platform operating 50 production and recycling sites across Grand Est, Bourgogne/Franche-Comté, and Hauts-de-France, supplying natural aggregates, recycled materials, railway ballast, and inert waste services to BTP professionals, concrete manufacturers, public works contractors, and individual consumers.

Ownership category

akta.pro rank

Product category

Construction Aggregates

NAICS

Nonmetallic Mineral Mining and Quarrying (2123), Crushed and Broken Limestone Mining and Quarrying (212312), Construction Sand and Gravel Mining (212321)

SIC

Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400)

akta.pro primary industry

Construction Aggregates Mining & Processing (Sand, Gravel, Crushed Stone) (IMADAAAI)

akta.pro secondary industries

Aggregate Processing & Value-Added Products (Washing, Screening, Asphalt/Concrete Aggregates) (IMAKAHAH), Sand & Gravel Extraction & Processing (IMAKAHAB), Recycled Aggregates & C&D Materials Processing (RCA, RAP, Glass Aggregate) (IMAKAHAI)

Keywords

• Construction aggregates
• Quarrying operations
• Recycled materials
• Railway ballast
• Inert waste management

Headquarters

HQ city

Nancy

HQ country

France

HQ region

Europe

Offices39 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Marketing or Sales

Revenue model

1. Aggregate Sales: Direct sales of natural aggregates (limestone, eruptive, alluvionary) produced from company quarries. Sold in various granulometries for building, civil engineering, and public works applications. Revenue from both departure-quarry sales and delivered sales.
2. Recycled Materials Sales: Sales of recycled aggregates produced from construction and demolition waste processed through recycling platforms. Approximately 300,000 tonnes of recycled materials sold annually.
3. Trading/Negoce Materials: Sales of traded materials complementary to natural materials produced in-house. Includes calcareous, eruptive, alluvionary and recycled materials in various granulometries.
4. Inert Waste Reception Services: Fees for accepting and processing inert waste materials from construction sites. Approximately 1 million tonnes of inert materials valorized/stored annually at ISDI facilities.
5. Transport Services: Delivery of materials to construction sites. Some sites ensure delivery for 90% of sales, including railway transport capabilities for supplying Paris region.
6. Hydraulically Bound Gravel Sales (Morgagni): Sales of Graves Traitées au Liant Hydraulique (GTH) - hydraulically bound gravels for road construction, commercialized at 3 sites within the Morgagni establishment.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels7 records

Core offering

NEXSTONE operates a network of over 50 quarry, gravel pit, sand pit, and recycling sites across Grand Est, Bourgogne-Franche-Comté, and Hauts-de-France, producing approximately 9 million tonnes of construction aggregates annually. The company extracts and processes natural materials (limestone, eruptive, alluvial) and produces recycled aggregates from construction and demolition waste, supplying BTP professionals, public works contractors, concrete manufacturers, railway infrastructure projects, and individual consumers.

Product overview

NEXSTONE operates a multi-site quarrying and materials platform across Grand-Est, Bourgogne-Franche-Comté, and Hauts-de-France regions, offering a comprehensive portfolio of construction aggregates and related services. The core offering centers on granulats (aggregates) including various types: natural aggregates from limestone, eruptive, and alluvial quarries; recycled materials from demolition waste; and traded materials. The product range spans multiple granulometries from sand (sables/sablon) to coarse gravel (gravillons) and large blocks, serving construction, public works, railways, and industrial applications. VALORMAT-labeled recycling platforms provide circular economy services, while ISDI installations handle inert waste storage. The Espace Client digital portal complements physical products with online order management and document access.

Differentiator

Problem solved

Functional benefit

Brands

• Valormat: Recycling platform label for inert waste recovery and recycled aggregate production, part of the Colas Group, operating across multiple NEXSTONE sites.
• VALORMAT
• Espace Client NEXSTONE

Products and services

• Granulats (Aggregates) Comprehensive range of construction aggregates including sand (sables 0/4, 0/6.3), gravel (gravillons 2/4 to 20/40), road base materials (graves 0/20 to 0/63), stones (pierres 20/31.5 to 80/200), blocks (blocs), earth products, and fillers in various granulometries. Extracted from limestone, eruptive, and alluvionary quarries for BTP and public works applications.
• Railway Ballast 31.5/50 Eruptive Concassé Ballast in multiple types (C2, C4, C5) specifically certified for high-speed rail lines (LGV) and conventional railway tracks. Produced at the Trapp quarry with LA: 9-11, MDE: 5-11, PSV: 51-55 specifications.
• Sable Equestre (Equestrian Sand) High-quality white sand specifically produced for equestrian centers, used for arenas and training tracks. Produced at the Tillet quarry.
• Recycled Materials (Matériaux Recyclés) Recycled aggregates produced from construction and demolition waste through crushing and screening at Valormat-certified recycling platforms. Approximately 300,000 tonnes of recycled materials produced annually for road construction and concrete production.
• ISDI Inert Waste Storage Installation de Stockage de Déchets Inertes accepting construction and demolition inert materials for recycling, valorization, and site rehabilitation. Approximately 1 million tonnes of inert materials valorized and stored annually.
• Transport and Delivery Service Delivery and logistics services for materials to construction sites, including road transport and rail transport capabilities. Some sites ensure delivery for 90% of sales, with the Trapp quarry's private railway branch enabling 4-6 daily freight trains to the Paris region.
• Espace Client NEXSTONE (Customer Portal) 24/7 digital customer portal providing access to documents, site information, exchanges, and traceability for granulat orders and deliveries. Available at espace-client.cmne-materiaux.fr.
• Terre Végétale (Topsoil) Screened and amended topsoil for landscaping, gardening, and land rehabilitation projects.
• Hydraulically Bound Gravels (Graves Traitées au Liant Hydraulique / GTH) Hydraulically bound gravels for road construction, commercialized at 3 sites within the Morgagni establishment.

Quantifiable outcome

• 9 million tonnes of aggregates commercialized annually
• +3 more outcomes

Named customers13 records

Segments8 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• Valormat (COLAS Group)coreTechnology or IntegrationValormat and Ecotri are COLAS Group recycling platforms providing second life to construction materials. NEXSTONE sites with Valormat certification include Chemaudin-et-Vaux, Etalans, and Boult. These platforms ensure high service standards based on over 30 years of recycling expertise, with strict quality and traceability controls for incoming materials and recycled output characteristics.
• Environmental Associations (LPO, BUFO, Local Environmental Groups)coreStrategic or Co-development PartnerNEXSTONE collaborates with Ligue de Protection des Oiseaux (LPO) in various regions including Alsace, Franche-Comté, and Champagne Ardenne. Partnerships include biodiversity monitoring, species protection initiatives, and habitat creation. BUFO (amphibian and reptile protection) partnerships exist at Wisches-Hersbach site. These partnerships support the company's biodiversity preservation commitments beyond legal requirements.
• Conservatoire d'Espaces NaturelsminorStrategic or Co-development PartnerPartnership with Conservatoire d'Espaces Naturels for biodiversity preservation at Sainte Magnance site, including rehabilitation and preservation of peatland areas.
• Conservatoire Botanique National du Bassin Parisien (CBNBP)minorStrategic or Co-development PartnerPartnership for conservation of Ranunculus hederaceus (renoncule à feuilles de lierre) at Sainte Magnance site, including experimental protocol and species transplantation.
• Office National des Forêts (ONF)minorStrategic or Co-development PartnerPartnership for biodiversity preservation, including monitoring at Sainte Magnance site and landscape planting projects.
• Chaine des TerrilsminorStrategic or Co-development PartnerCollaboration with Chaine des Terrils for biodiversity management at Schistes Calibres de l'Artois site, which sits on coal mining waste piles (terrils).
• GeogramminorStrategic or Co-development PartnerFaunistic and floristic expertise at Cheppes-la-Prairie site for biodiversity assessments.
• Lorraine Association Nature (LOANA)minorStrategic or Co-development PartnerPartnership for biodiversity monitoring and advice at Jaillon and Viterne sites.
• COLAS GroupcoreOthersNEXSTONE is part of COLAS Territoire Nord-Est, the main entity of COLAS materials activity in north-eastern France. COLAS France, with capital of 54,134,933 euros, is the parent company.

Scale indicators13 records

Recent moves6 records

Expansion highlights6 records

Regional players

• SIBO (Sablières & Industries du Bassin de l'Ouest): French regional sand and gravel producer serving western France markets. Comparable as a multi-site aggregates operator focused on construction materials, though serving different regional geographies than NEXSTONE's northeastern footprint.

Broad incumbents

• CEMEX: Global cement, aggregates, and ready-mix concrete producer with French operations. Competes for major French infrastructure and BTP contracts and offers overlapping product categories to NEXSTONE.
• CRH plc: Global building materials group with multiple French aggregates and concrete assets (including EQIOM). Comparable as a diversified parent competing across the same French construction materials value chain.
• LafargeHolcim (Holcim): One of the world's largest cement and aggregates producers with significant French operations through Lafarge. Directly comparable as both a competitor and a customer of NEXSTONE (Lafarge BETAG 77 is a listed customer), with overlapping aggregates and ready-mix concrete offerings across France.
• Heidelberg Materials: Global cement and aggregates major operating in France through GSM, supplying ready-mix concrete producers (also a NEXSTONE customer). Comparable in offering integrated cement-aggregates-concrete solutions to the same BTP market.

Direct peers

• Imerys: French-listed global industrial minerals miner with non-metallic mineral extraction operations. Comparable as a French-headquartered industrial mineral and aggregates producer, though Imerys focuses more on specialty minerals than construction aggregates.
• EQIOM (CRH plc): French aggregates, ready-mix concrete, and cement producer owned by CRH, supplying concrete batching plants (and listed as a NEXSTONE customer). Direct competitor for concrete-grade aggregates across northern France.
• Vicat: French-headquartered cement, aggregates, and concrete producer with quarries across France. A direct peer offering similar calcareous aggregates and ready-mix concrete products to the same BTP and public works customers in overlapping French regions.
• Carrières du Boulonnais: Independently owned French limestone quarry group in northern France producing aggregates, ballast, and dimensional stone. A direct regional peer with overlapping customer base in Hauts-de-France and similar product mix including railway ballast.
• Granulats Vicat: Aggregates division of Vicat, a French-headquartered cement and concrete producer. Direct peer producing calcareous and alluvial aggregates for the same BTP, public works, and concrete-batching customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/cogesud

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries8 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 Quarries and Materials North-East