Casimmo

What Casimmo does

Casimmo SARL is a French construction company founded in 2014 and headquartered in Sundhoffen, Alsace. It specializes in Light Steel Framing (LSF) construction — a method using lightweight, prefabricated steel frames assembled on-site without concrete formwork — alongside thermal insulation (ITE), facade and interior renovation, traditional coatings, wood cladding, and house extensions. The company acts as maître d'œuvre (master contractor/project manager), coordinating a network of vetted local subcontractors for electrical, heating, flooring, tiling, painting, and carpentry work while providing direct site supervision. Notable technical performance includes assembly of a steel structure in 6 days with two workers and full delivery of a 90m² house in 5 months, versus longer timelines for traditional masonry construction.

The company serves primarily individual residential homeowners in Alsace and, as of 2024, has expanded geographically to Paris, Dole, and Ponta Delgada in the Azores (Portugal). It also targets property developers and investors through a barn conversion partnership with ARTHURIMMO Colmar. The go-to-market is direct-to-consumer, driven by the company website (which includes an online cost simulator), word-of-mouth referrals, and in-person project consultations. Pricing is project-based and quote-driven, with materials sourced from French manufacturers (Novaceram, Alsafloor, Onip, Ottofond) and custom kitchen options delivered via a partnership with Darty Colmar.

Casimmo operates as a closely-held private SARL with €97,700 in registered capital, no institutional investors, no parent company, and no subsidiaries. It has no patents or trademarks on file, has not raised external funding, and discloses no headcount. With approximately 10 projects completed in 2024 and a senior team averaging 25+ years of construction experience, Casimmo is a small specialist builder leveraging LSF as its core technical differentiator rather than a scale construction firm.

Name

Casimmo

Legal name

Casimmo SARL

Website

https://casimmo-habitat.fr

Company type

Private

Founded year

2014

Operating status

Operating

Short description

Casimmo is a French construction company specializing in Light Steel Framing (LSF) houses, thermal insulation, and building renovation, serving individual residential homeowners in Alsace with expanding reach across France and into the Azores.

Ownership category

akta.pro rank

Product category

Residential Construction Services

NAICS

Residential Building Construction (2361), Drywall and Insulation Contractors (238310), Siding Contractors (238170)

SIC

Fabricated Structural Metal Products (3440), Prefabricated Metal Buildings & Components (3448)

akta.pro industry

PRIMARYIMADACAF

Cold-Formed Steel Framing & Studs

Industrials, Manufacturing & Construction/Building Materials & Products/Structural Steel & Metal Building Products

SECONDARYHSAPACAB

Basement Framing, Insulation & Drywall (Build-Out)

Home & Personal Services/Residential Renovation Services/Basement & Attic Finishing

SECONDARYIMADACAM

Metal Cladding, Soffits & Trim (Non-Panel Components)

Industrials, Manufacturing & Construction/Building Materials & Products/Structural Steel & Metal Building Products

SECONDARYEDAOAAAE

Drywall, Plastering & Insulation

Education/Vocational, Technical & Trade Education/Construction & Building Trades

Keywords

• Light steel framing
• Residential construction
• Thermal insulation
• Facade renovation
• Home extension services

Headquarters

HQ city

Sundhoffen

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. New Construction Services: Design and construction of residential houses using Light Steel Framing technology. The company provides complete construction services including steel structure, insulation, finishing, and all necessary trades.
2. Renovation and Rehabilitation Services: Interior and exterior renovation services including facade renovation, traditional coatings, wood cladding, thermal insulation upgrades, and complete habitat rehabilitation.
3. Extension Services: Lightweight steel extensions for existing houses, leveraging the low weight of steel to avoid overloading existing foundations while providing rapid installation.
4. Master Contractor Services: Project management services as maître d'œuvre, coordinating specialized subcontractors for electricity, heating, flooring, painting, and other trades while providing daily site supervision.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

Casimmo designs, builds, and delivers individual houses using Light Steel Framing (LSF) construction technology. The company also performs thermal insulation works (ITE), facade and interior renovations, wood and traditional cladding, extensions in lightweight steel, and full project management (maîtrise d'œuvre) for residential clients primarily in the Alsace region of France.

Product overview

Casimmo is a construction company offering a unified suite of building services centered on Light Steel Framing (LSF) construction technology. The core product is the LSF system, which serves as the foundation for new construction and extensions. Complementary services include thermal insulation (ITE), facade renovation, traditional coatings, wood cladding, and interior renovation. The company also provides master builder services for comprehensive project management.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Construction timeline reduced by 50% compared to traditional methods - 90m² house delivered in 5 months with 6-day steel structure assembly
• +3 more outcomes

Segments2 records

Ideal customer profiles1 record

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core and supporting.

• Darty ColmarcoreGTM or Marketing PartnerPartnership with Darty Colmar for custom kitchen installations. Casimmo offers bespoke kitchen solutions in partnership with Darty, allowing customers to benefit from additional discounts through the partnership while receiving coordinated kitchen and construction services.
• ARTHURIMMO ColmarcoreChannel Partner/ Reseller/ DistributorStrategic partnership with real estate agency ARTHURIMMO Colmar for the sale of ready-to-inhabit barns. Casimmo renovates abandoned barns into habitable properties in collaboration with the agency, simplifying the sales process for buyers.
• French Material Manufacturers (Novaceram, Alsafloor, Onip, Ottofond)supportingChannel Partner/ Reseller/ DistributorNetwork of French manufacturers providing high-quality construction materials including ceramics, flooring, and finishing products. These partnerships ensure supply of premium materials for renovation and construction projects.
• Local Specialized SubcontractorssupportingImplementation/ SI/ Consulting PartnerNetwork of rigorously selected local subcontractors covering specialized trades including electricity, heating/sanitary, flooring, tiling, painting, plastering, and interior carpentry. Subcontractors are validated with customer approval within the framework of a master contractor contract.

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Ossabois: French manufacturer of industrial wood-frame homes offering prefabricated alternative-framing solutions to residential customers. Highly comparable to Casimmo's LSF model as both deliver factory-prefabricated framing systems with shorter construction timelines than traditional masonry builders.
• Trecobat: French timber-frame home builder using industrial prefabrication to deliver turnkey residential projects. Comparable to Casimmo in offering factory-prefabricated alternative framing with full project management for individual homeowner customers.

Broad incumbents

• Bouygues Construction: Major French construction group active in residential, commercial, and infrastructure. Comparable as a broad incumbent whose building renovation, insulation, and residential capabilities overlap with Casimmo's full-service offering, though at vastly larger scale.
• Eiffage Construction: Large French construction group with residential and renovation activities. Comparable as a broad incumbent with deep resources in building envelope work, renovation, and energy-efficiency upgrades that competes for the same customer spending as Casimmo.
• Maisons Pierre: Established French homebuilder with a national franchise network of regional agencies delivering individual homes. Comparable to Casimmo in offering turnkey residential construction to individual homeowners, though at much greater geographic scale and using conventional methods.
• Hexaôm (formerly Maisons France Confort): Largest French homebuilder serving individual homeowners nationwide with turnkey residential construction. Comparable as the dominant incumbent Casimmo competes against for new residential projects across France, though Hexaôm primarily uses traditional masonry methods.
• Maisons Phénix: Long-established French homebuilder with broad geographic coverage and turnkey individual-home delivery. Comparable as a large-scale incumbent offering full project management to individual homeowners in direct competition with Casimmo's maîtrise d'œuvre model.

Others

• Darty: Major French home appliance and kitchen retailer that is itself a Casimmo partner (Darty Colmar). Included as a peer/channel partner demonstrating how Casimmo extends commercial reach into adjacent home-improvement purchase decisions rather than as a direct competitor.

Emerging players

• COBEO: French eco-construction specialist offering energy-efficient and bio-sourced homebuilding. Comparable to Casimmo in targeting environmentally conscious residential customers with alternative construction methods and strong thermal performance.
• Natibox: French modular construction company using alternative industrial methods for residential projects. Comparable to Casimmo as an emerging player challenging traditional building methods with prefabrication and faster timelines for individual homeowners.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks7 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 Casimmo