ALTO
ALTO is a privately-held French roofing and waterproofing contractor founded in 2013, operating two regional agencies in Caen and Saint-Nazaire to serve commercial, industrial, public-sector, and property-management clients across Basse-Normandie and Loire-Atlantique through maintenance, renovation, and annual service contracts.
- Company typePrivate
- Founded2013
- HeadquartersCarpiquet, France
- Headcount11–50
- GTM typeB2B
- OfferingServices
What ALTO does
ALTO is a privately-held French roofing and waterproofing contractor founded in 2013 and headquartered in Carpiquet, Normandy. The company delivers an integrated roofing service portfolio organized around four pillars — Maintenance (emergency leak detection and repairs), Amélioration (roof optimization, accessibility, natural light, smoke exhaust, energy performance), Rénovation (full roof replacement), and Entretien (annual preventive maintenance contracts with photographic reporting) — and executes these across three roof categories: traditional (slate, tile, zinc), industrial (steel deck, sandwich panels, fiber cement), and flat (liquid-applied, bituminous, PVC, FPO, and vegetation systems), including asbestos remediation. Operations run through two physical agencies: ALTO Caen serving Basse-Normandie and ALTO Saint-Nazaire (Trignac) serving Loire-Atlantique, supported by dedicated technico-commercial field staff and an internal technical study bureau.
The business is built on a hybrid revenue model combining one-time project work (renovation, improvement, waterproofing) with recurring annual maintenance contracts that generate predictable income and embed the company in clients' insurance-compliance workflows. The company employs 40 collaborateurs across its two agencies, executes more than 1,800 interventions and over 50,000 hours of roof work per year, and serves six customer segments — enterprises & industries, public administrations, property managers and syndicates, healthcare facilities, retail and service businesses, and specification writers (architects/prescribers). Customer acquisition is primarily field-driven via direct B2B outreach, supported by website contact forms and a LinkedIn corporate presence.
ALTO is privately held with no parent company, no external investors, and no publicly disclosed funding. Governance is led by Julien Jean as Directeur de publication. Revenue is not publicly disclosed; pricing is project-based and tailored through on-site visits and technical studies. The company's competitive positioning rests on regional density across two French territories, an integrated "single point of contact" model across all roof types, recurring maintenance contracts that create switching frictions, and ownership of specialized equipment (truck-mounted aerial platforms). No AI, software platform, or proprietary technology beyond traditional trade expertise is referenced in the available materials.
ALTO firmographics
Firmographics- Name
- ALTO
- Legal name
- Alto
- Website
- https://alto-groupe.fr
- Company type
- Private
- Founded year
- 2013
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- ALTO is a privately-held French roofing and waterproofing contractor founded in 2013, operating two regional agencies in Caen and Saint-Nazaire to serve commercial, industrial, public-sector, and property-management clients across Basse-Normandie and Loire-Atlantique through maintenance, renovation, and annual service contracts.
- Ownership category
- akta.pro rank
ALTO industry classification
Industry- NAICS
- Other Foundation, Structure, and Building Exterior Contractors (238190)
- SIC
- Operative Builders (1531)
- akta.pro primary industry
- Soffit, Fascia & Eaves Repair/Replacement (HSAPAKAH)
- akta.pro secondary industry
- Roof Inspection, Preventive Maintenance & Tune-Ups (HSAGAKAH)
Keywords
Where ALTO is headquartered
LocationHeadquarters
- HQ city
- Carpiquet
- HQ country
- France
- HQ region
- Europe
Offices3 records
Markets served
ALTO business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales, Technology or R&D
Revenue model
- Professional Services / Project Work: One-time project engagements for roof renovation, improvement, and maintenance work. Customers include enterprises, industries, healthcare facilities, retail, and institutional clients. Quotes are prepared based on site visits and technical studies.
- Maintenance Contracts: Recurring annual maintenance contracts with scheduled inspections, preventive treatments, and detailed photographic reports. Provides predictable recurring revenue and long-term client relationships.
Go-to-market motion2 records
Distribution channels3 records
Marketing channels4 records
ALTO product offering
Product offeringCore offering
ALTO is a French B2B roofing contractor delivering four service lines — emergency Maintenance, Amélioration (improvement), Rénovation and Entretien (preventive maintenance contracts) — across three technical specialties: Étanchéité (waterproofing), Couverture industrielle (industrial roofing) and Couverture traditionnelle (slate, tile, zinc). Work is sold on a quote basis following an in-house technical study and executed by company crews using dedicated worksite equipment, with photographic reporting provided per intervention.
Product overview
ALTO is a French roofing and waterproofing company offering a unified service portfolio organized around four core offerings: Maintenance (emergency repairs, leak detection), Amélioration (improvement/upgrades including energy performance), Rénovation (full roof renovation), and Entretien (annual maintenance contracts). These core services are delivered across three specialty areas: Étanchéité (waterproofing in liquid, bituminous, PVC, FPO, and vegetation systems), Couverture industrielle (industrial steel deck and sandwich panel roofing), and Couverture traditionnelle (traditional slate, tile, and zinc roofing). ALTO supports flat, industrial, and traditional roof types and provides ongoing management through maintenance contracts with photographic reporting. The company operates two agencies (Caen and Saint-Nazaire) serving Basse-Normandie and Loire-Atlantique regions.
Differentiator
Problem solved
Functional benefit
Products and services
- Maintenance (interventions d'urgence) Emergency repair and rapid-intervention service for roof leaks, damage and urgent waterproofing issues, available to ALTO's enterprise, public-sector, property manager, healthcare and retail clients across Basse-Normandie and Loire-Atlantique.
Quantifiable outcome
- Regular maintenance costs 5 times less than complete roof replacement over 20 years
- +2 more outcomes
Companies that use ALTO
Customer profileNamed customers6 records
Segments6 records
Ideal customer profiles6 records
ALTO technology and API
TechnologyAPI detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
ALTO partnerships and signals
Strategic signalScale indicators5 records
Recent moves4 records
Expansion highlights4 records
ALTO competitors and assessment
Company assessmentEmerging players
- Derbigum: Specialist bituminous and synthetic waterproofing membrane manufacturer active across Europe. Comparable as a focused waterproofing player whose products and installer networks overlap with ALTO's étanchéité service line on flat-roof projects.
Broad incumbents
- SPIE: Major French multi-technical building services group (acquired SMAC, a historical roofing contractor). Comparable as a larger incumbent that bundles roofing, waterproofing, and facilities services for the same B2B customer base across multiple French regions.
- Onduline: French-founded global manufacturer of bituminous roofing sheets and waterproofing systems. Comparable as an established French roofing materials brand whose products are installed by contractors working in the same segments as ALTO.
- Wienerberger: European leader in clay, concrete, and ceramic building materials (parent of Terreal). Comparable as a broad incumbent supplying roofing materials that anchor the same pitched-roof projects ALTO delivers for traditional building stock in France.
- SOPREMA: Strasbourg-headquartered French group and one of Europe's largest waterproofing and roofing solutions providers, with both manufactured membranes and a contracting services arm. Directly comparable as a French roofing/waterproofing specialist that competes for the same enterprise and public-sector roof work.
- BMI Group: Leading European roofing and waterproofing systems provider (formerly Braas Monier / Icopal). Comparable as a broad incumbent offering pitched-roof and flat-roof systems that compete with ALTO's traditional and industrial covering services across the French market.
- Terreal: French clay tile and roofing solutions manufacturer (now part of Wienerberger). Comparable as a major French roofing brand whose traditional pitched-roof materials overlap directly with ALTO's 'Couverture traditionnelle' slate/tile/zinc service line.
- Saint-Gobain: Global French building materials giant with roofing, insulation, and waterproofing product lines. Comparable as a broad incumbent whose distribution and brand reach shape competitive dynamics in the same French B2B construction ecosystem.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat3 records
Key risks6 records
Key highlights7 records
Customer concentration
ALTO social profiles
Digital presenceALTO financial estimates
Financial estimateRevenue estimate
Valuation estimate
ALTO leadership team
Management profileNumber of profiles
Profiles1 record
ALTO funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
ALTO M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about ALTO
What does ALTO do?
ALTO is a French B2B roofing contractor delivering four service lines — emergency Maintenance, Amélioration (improvement), Rénovation and Entretien (preventive maintenance contracts) — across three technical specialties: Étanchéité (waterproofing), Couverture industrielle (industrial roofing) and Couverture traditionnelle (slate, tile, zinc). Work is sold on a quote basis following an in-house technical study and executed by company crews using dedicated worksite equipment, with photographic reporting provided per intervention.
Is ALTO a public or private company?
ALTO is a private company. It is currently operating.
When was ALTO founded?
ALTO was founded in 2013. It employs 11 to 50 people.
Where is ALTO based?
ALTO is headquartered in Carpiquet, France, in the Europe region.
How does ALTO make money?
Two revenue lines are on record. Professional Services / Project Work is the primary driver. The others are maintenance Contracts.
Who are ALTO's main competitors?
Derbigum is listed as an emerging player. Broad incumbents are SPIE, Onduline, Wienerberger, SOPREMA, BMI Group, Terreal and Saint-Gobain.
Does ALTO have an API?
No public API is recorded for ALTO.
What industry is ALTO in?
Its primary akta.pro industry code is HSAPAKAH, Soffit, Fascia & Eaves Repair/Replacement, with a secondary code of HSAGAKAH, Roof Inspection, Preventive Maintenance & Tune-Ups. Its NAICS code is 238190 and its SIC code is 1531.