What Andesite does

Andesite is a French small-to-medium enterprise (PME) founded circa 1970 and headquartered in Mazayes, Auvergne, with an additional commercial presence in Clermont-Ferrand. The company extracts and shapes volcanic lava stone from three iconic Auvergne quarries — Chambois, Mont Dore, and Volvic — making it the sole operator with integrated extraction across all three of these historic volcanic sources. Operations combine quarry extraction with custom CNC machining and artisanal finishing.

The company sells cut and finished lava stone products to architects, designers, territorial collectivities, building professionals, artists, and individual homeowners. Its portfolio spans construction elements (cladding, paving, masonry), custom design pieces, and bespoke artistic works. The company is led by Jean Sembel as Managing Director (Dirigeant). Notable reference projects include the Michelin headquarters (La Canopée), Vulcania theme park, the Grande Halle d'Auvergne, the Train à Crémaillère, and the Temple de Mercure.

Originally founded as a traditional funeral art business, Andesite has pivoted over time into broader construction, design, and urban development markets. Revenue mechanics are anchored on custom stone sales, project contracts, and bespoke commissions. The customer base spans enterprise-grade cultural and corporate projects, professional construction firms, and a long tail of individual clients. No AI/ML capabilities or digital platform business are evident in the company's operations.

Name

Andesite

Legal name

Andésite

Website

https://andesite.eu

Company type

Private

Founded year

1970

Operating status

Operating

Short description

Andesite is a French SME founded circa 1970 that extracts and shapes volcanic lava stone from three Auvergne quarries (Chambois, Mont Dore, Volvic) for construction, design, and artistic applications, serving architects, territorial authorities, building professionals, and individual clients.

Ownership category

akta.pro rank

Product category

Natural Stone Manufacturing

NAICS

Dimension Stone Mining and Quarrying (212311)

SIC

Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400), Cut Stone & Stone Products (3281)

akta.pro primary industry

Other Dimension Stone (Slate, Sandstone, Quartzite, Travertine) Quarrying & Fabrication (IMAKAHAF)

akta.pro secondary industry

Crushed Stone Quarrying & Processing (IMAKAHAA)

Keywords

• Volcanic stone extraction
• Natural stone products
• Custom stone cutting
• Building stone supply
• Volcanic lava fabrication

Headquarters

HQ city

Mazayes

HQ country

France

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Extracted and shaped volcanic lava stone: Revenue from extracting raw lava stone blocks from three quarries (Chambois, Mont Dore, Volvic) and shaping them into finished products including construction materials, facade cladding, lintels, tiles, pavers, sculptures, urban furniture, kitchen and bathroom pieces. Sales of both raw materials to craftsmen and finished custom-made products to end customers.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Andésite extracts volcanic lava stone from three quarries in Auvergne, France (Lave de Volvic, Lave de Chambois, Lave du Mont Dore) and shapes it into custom products for construction, decoration, urban design, and artistic applications. The company operates the full value chain from quarry extraction through CNC machining and artisanal finishing to deliver bespoke stone pieces for professionals and individuals.

Product overview

Andésite is a SME that extracts and shapes three distinctive volcanic lava stones from Auvergne: Lave de Volvic, Lave de Chambois, and Lave du Mont Dore, sourced from the Puys chain and Sancy volcanoes. The company operates three quarries and manufacturing workshops, offering a complete value chain from raw material extraction to finished custom products. Its core offering centers on three raw lava materials differentiated by geological origin and characteristics, complemented by services including custom stone cutting (La taille de la Pierre), design and marble work (Le design et la marbrerie), CNC machining, and artisanal finishing. Products include construction stones, facade panels, tiles and pavers, sculptures, urban furniture, kitchen and bathroom elements (countertops, islands, sinks, basins, showers), wall coverings, stairs, fireplaces, terraces, and bespoke creations. The company also maintains an artistic collaboration 'Un Air de Croûte Terrestre' for extreme-temperature lava art pieces.

Differentiator

Problem solved

Functional benefit

Products and services

• Lave de Volvic Volcanic lava stone quarried from Puy de la Nugère, featuring fine regular grains and gray 'souris' tone. Known for high resistance to corrosive products, used for industrial technical products, enamel supports, construction, interior and exterior design, and historical monument restoration.
• Lave de Chambois Volcanic lava stone from the foot of Puy de Dôme and Puy de Côme, exclusively extracted by Andésite. Features fine or vesicular grain with blue-gray and red veining. Used for exterior building products (facade panels, walls, flooring), urban furniture, and unique interior decoration applications.
• Lave du Mont Dore Volcanic lava from Puy de Sancy, classified as 'doréite' by geologists. Light gray color with white sanidine phenocrysts. Excels in industrial and technical applications for thermal stability and resistance to temperature variations; prized by enamellers for chemical properties that fuse with enamel at high temperatures.
• La taille de la Pierre (Custom Stone Cutting) Custom stone cutting service that adapts to specific project requirements, creating personalized designs. Capable of producing covering stones, pool edges, gate pillars, window frames, benches, bollards, fountains, and massive stairs or cladding.
• Le design et la marbrerie (Design and Marble Work) Designers and marble workers shape lava into unique decorative pieces including urban furniture, kitchen and bathroom furniture, tables, and custom creations.
• Un Air de Croûte Terrestre Artistic collaboration with Céline Martinant from Andésite workshops. Exposes lava to extreme temperatures causing it to return toward fusion, creating mineral effects with stunning aesthetics. Produces unique decorative pieces pushing the boundaries of the material.

Quantifiable outcome

• Non-freezing (non gélive) material suitable for outdoor use in all climates
• +3 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Céline MartinantcoreStrategic or Co-development PartnerDesigner at Andésite workshops who works with lava at extreme temperatures, returning it to fusion. Creates artistic pieces where lava melts, curves, and cracks. Exhibited work titled 'Un Air de Croûte Terrestre' showcasing mineral effects of exceptional aestheticism. Represents the company's artistic and design collaboration approach.

Scale indicators4 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Rocamat: France's leading natural stone producer operating quarries and fabrication workshops for limestone, marble and granite used in construction, facade and urban-furniture applications. Directly comparable to Andésite as a vertically integrated French dimension-stone specialist serving architects and public-sector clients.
• Polycor: North American and European quarrier and fabricator of natural stone (granite, marble, limestone) supplying building construction, monuments and architectural projects. Comparable to Andésite as a multi-quarry dimension-stone operator with integrated cutting and finishing capacity serving B2B construction and design customers.
• Coldspring: US-based granite quarrying and stone products company serving architectural, memorial and construction markets with custom-cut stone. Comparable to Andésite in its quarry-to-finished-product model, custom CNC and hand finishing, and emphasis on premium architectural specifications.
• Vetter Stone: US dimension-stone quarrier producing cut limestone and dolomite for architectural, landscaping and building projects. Comparable to Andésite as a regional multi-generational quarrier with deep geological expertise and a focus on premium natural stone for construction and design.
• Antolini Luigi & C. Italian family-run producer and processor of marble and natural stone slabs for high-end architecture and interior design worldwide. Comparable to Andésite in its combination of proprietary quarry access, custom cutting/finishing and premium positioning with architects and designers.
• Levantina y Asociados: Spanish multinational extracting and processing natural stone (marble, limestone, granite, quartzite) for construction, decoration and large architectural projects. Comparable to Andésite in vertically integrated quarrying plus fabrication serving architectural specification markets in Europe.

Broad incumbents

• Imerys: French global leader in mineral-based specialty solutions operating quarries and processing facilities for industrial minerals. Comparable to Andésite as a French-headquartered industrial minerals company, though operating at vastly greater scale and focused on industrial applications rather than architectural stone.
• Saint-Gobain: French-headquartered global building materials giant offering a broad portfolio including construction products and distribution to building professionals. Comparable to Andésite only at the highest level as a French construction materials supplier, but does not focus on dimension-stone quarrying and operates at much greater scale.
• CRH plc: Ireland-headquartered global building materials group with significant aggregates and architectural products operations across Europe. Comparable to Andésite as a major European aggregates/stone supplier but at dramatically greater scale and with a focus on aggregates rather than bespoke architectural dimension stone.

Emerging players

• Groupe CB (Carrières & Bétons): French regional operator of quarries producing aggregates, dimension stone and ready-mix concrete in Auvergne and central France. Comparable to Andésite as a French regional quarrying group with overlap in Auvergne and adjacent territories supplying construction materials.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Andesite