What AM3L does

AM3L is a French deep-tech startup spun off from CEA Paris-Saclay in 2023, specializing in 3D printed architectured metal metamaterials produced via Laser Powder Bed Fusion (LPBF). Its portfolio of 12 patents underpins the ability to control porosity at millimetric and sub-millimetric scales, enabling multi-scale architectures that combine antagonistic properties — such as rigidity and permeability, or axial shock absorption without lateral expansion — inside a single component. The company organizes its offering into three product families: industrial filtration (porous metal media with surface functionalization for virucidal, catalytic, hydrophobic, and hydrophilic functions), absorption and thermal exchange (lattice shock absorbers and metal-foam heat exchangers), and low-carbon energies (membranes and architectured bipolar plates for hydrogen fuel cells and electrolyzers).

AM3L operates a B2B custom-solutions model, working directly with industrial clients from concept through qualification and certification. Pricing is project-based, set against material, complexity, and volume, with no publicly disclosed list pricing. Customer work is concentrated in regulated, qualification-intensive sectors — nuclear, defense, transportation (automotive, rail, aeronautics, space), hydrogen, gas treatment, effluent treatment, industrial maintenance, and food industry — where its ASN-qualified shock absorbers, CEA pedigree, and French manufacturing provide supply-security credentials.

The company maintains a dual presence: its registered headquarters in Antony, France, and an engineering and R&D office on the CEA Saclay campus at Gif-sur-Yvette, where it continues collaborative research with CEA. It is supported by Bpifrance, France 2030, and IncubAlliance, with Nikon SLM Solutions as its LPBF equipment partner. As of 2025, it is a sub-ten-person team in the early commercialization phase, having just achieved its first Nuclear Safety Authority qualification and announced plans to extend into defense, rail, aerospace, and space markets while developing 4D dampers based on shape-memory alloys.

Name

AM3L

Legal name

SAS AM3L

Website

https://am3l.com

Company type

Private

Founded year

2023

Operating status

Operating

Headcount range

1–10 employees

Short description

AM3L is a French deep-tech startup spun off from CEA Paris-Saclay in 2023 that designs and manufactures LPBF 3D-printed porous metal metamaterials for shock absorption, filtration, and hydrogen-energy applications serving nuclear, defense, transportation, and other regulated industrial customers.

Ownership category

akta.pro rank

Product category

Metal Additive Manufacturing

NAICS

All Other Fabricated Metal Product Manufacturing (33299), Plate Work and Fabricated Structural Product Manufacturing (33231)

SIC

Fabricated Structural Metal Products (3440), Miscellaneous Fabricated Metal Products (3490)

akta.pro primary industry

Additive Manufacturing for Metals (Metal 3D Printers & Post-Processing) (IMAHADAG)

akta.pro secondary industries

Aerospace & Defense (Production AM Parts) (IMAAAEAA), Energy & Power (Oil & Gas, Turbines, Nuclear, Renewables) (Production AM Parts) (IMAAAEAE), Rail & Mass Transit (Production AM Parts) (IMAAAEAJ)

Keywords

• Metal additive manufacturing
• Porous metallic materials
• Industrial filtration systems
• Shock absorber components
• Thermal management solutions

Headquarters

HQ city

Antony

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom 3D Architectured Material Solutions: B2B custom manufacturing of metal 3D printed components with controlled porosity for industrial applications. Products include shock absorbers, filtration media, heat exchangers, and hydrogen fuel cell components developed to customer specifications.
2. R&D and Development Services: Collaborative development of tailored solutions with clients, particularly in regulated industries requiring qualification and certification

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

AM3L designs, develops, and manufactures 3D-printed metal metamaterials using Laser Powder Bed Fusion (LPBF) additive manufacturing, with controlled multi-scale porosity and surface functionalization. Its commercial offering consists of three product families: 3D-printed porous metal filtration media for industrial gas/liquid filtration; lattice/alveolar shock absorbers and metal foam heat exchangers for impact protection and thermal management; and low-carbon energy components including hydrogen membranes, architectured fuel-cell bipolar plates, and heat storage systems. Solutions are custom-developed and qualified for demanding regulated sectors (nuclear, defense, transportation, hydrogen, gas/effluent treatment, food industry).

Product overview

AM3L is a French startup that designs, develops, and commercializes 3D architectured metal metamaterials using Laser Powder Bed Fusion (LPBF) additive manufacturing. The company's product portfolio consists of three main families: Industrial Filtration (porous metal filtration media with customizable properties and surface functionalization), Absorption & Heat Exchange (lattice structures for shock absorbers and heat exchangers with controlled mechanical behavior), and Low-Carbon Energies (membranes and bipolar plates for hydrogen fuel cells). All products leverage multi-scale architecture control to deliver properties ranging from extreme mechanical resistance to fine filtration, with eco-responsible manufacturing supported by life cycle analyses.

Differentiator

Problem solved

Functional benefit

Products and services

• Industrial Filtration 3D-printed porous metal filtration media with controlled porosity architecture, designed for easy integration into existing devices and capable of surface functionalization for virucidal, catalytic, hydrophobic, and hydrophilic properties. Targeted at industrial gas and liquid filtration in nuclear, gas treatment, effluent treatment, food industry and other demanding sectors.
• Absorption & Heat Exchange Lattice and alveolar structures for shock absorption with controlled, repeatable mechanical behavior (including axial compression without lateral expansion), combined with metal foam heat exchangers and heat storage systems, with support for in-situ sensor instrumentation. Targeted at nuclear, defense and transportation applications requiring qualified energy absorption and thermal management.
• Low-Carbon Energies Integrated solutions for hydrogen and clean energy including porous membranes, architectured bipolar plates for fuel cells, gas diffusion layer porous plates, electrolyzer components, and heat storage systems. Designed for improved energy conversion efficiency, reduced weight and size, durability, and recyclability in clean energy systems.

Quantifiable outcome

• Axial compression without lateral expansion preventing shell perforation
• +3 more outcomes

Named customers2 records

Segments8 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered core and minor.

• CEA (Commissariat à l'énergie atomique et aux énergies alternatives)coreStrategic or Co-development PartnerCEA is the source organization from which AM3L spun off in 2023. AM3L emerged from 10 years of CEA research on advanced materials and processes. The company continues to develop new R&D projects with CEA and bases its product development on CEA expertise and background, particularly for meeting certification requirements of regulated fields.
• Nikon SLM SolutionscoreTechnology or IntegrationManufacturer of LPBF (Laser Powder Bed Fusion) metal 3D printing equipment used by AM3L for production of architectured materials. Listed as a supporter of AM3L.
• IncubAllianceminorOthersBusiness incubator supporting AM3L as a startup. Listed as a supporter of the company.
• DIADEM Installation, MarcoulecoreStrategic or Co-development PartnerNuclear facility at Marcoule where AM3L shock absorbers are integrated for full-scale drop tower tests. Represents a key application case and customer relationship in the nuclear sector.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• EOS GmbH: Global leader in industrial metal and polymer 3D printing with deep installed base across aerospace, automotive, medical, and tooling. Comparable as a broad metal AM incumbent whose technology and parts compete with AM3L's targeted applications.
• Stratasys Direct Manufacturing: Large contract manufacturing service for additive parts across metals and polymers, serving aerospace, defense, and industrial customers. Comparable as an on-demand metal AM parts service provider, though broader and less specialized than AM3L.
• SLM Solutions (Nikon SLM Solutions): German-headquartered, now Nikon-owned manufacturer of LPBF metal 3D printing systems used across aerospace, automotive, and energy. Comparable as a major LPBF platform provider; AM3L is a customer of SLM Solutions but competes in the same parts market for end-use components.

Emerging players

• Carpenter Additive (Carpenter Technology): Metals specialist extending into additive manufacturing powder production and finished parts for aerospace and medical. Comparable in metal AM focus and regulated end-markets, though broader in materials supply than AM3L.
• Aconity3D: German metal AM company focused on LPBF and EBAM systems for high-temperature alloys and complex geometries in aerospace and energy. Comparable as a European deep-tech metal AM specialist with similar customer verticals.
• Elementum 3D: Developer of advanced metal powders and reactive metal AM processes, producing specialized parts for aerospace and industrial applications. Comparable as a niche metal AM innovator targeting performance-differentiated components.
• MetFoam Technologies: Canadian developer of metal foam products and porous metallic structures for energy absorption, filtration, and thermal management. Comparable in producing controlled-porosity metal structures targeting shock absorption, filtration, and heat exchange — directly overlapping AM3L's product portfolio.

Direct peers

• Sintavia: US-based metal additive manufacturer specializing in high-quality LPBF parts for aerospace, defense, and space with full Nadcap and AS9100 certifications. Closely comparable as a regulated-industry metal AM parts producer.
• Additive Industries: Dutch developer of industrial metal AM systems and large-format LPBF parts for aerospace, automotive, and energy. Comparable as a European deep-tech metal AM company targeting serial production of complex, high-value parts.
• Velo3D: US-based metal LPBF 3D printing systems and parts manufacturer serving aerospace, defense, and energy with complex, high-value additively manufactured components. Directly comparable as a metal AM parts producer targeting regulated, high-performance applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@AM3L-Limitless
• LinkedInlinkedin.com/company/am3l-limitless

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds1 record

Investors1 record

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 AM3L