Lemer

What Lemer does

Fonderie Lemer is a French specialty foundry founded in 1878 by Louis-François Lemer and headquartered in Carquefou (Nantes region), France. The company operates as an S.A.S. (Société par Actions Simplifiée) with registered capital of 5,221,000 euros and remains family-owned across multiple generations. It specializes in the casting of lead and other low-melting-point alloys (zinc, tin, bismuth, tungsten) for fishing weights, diving ballast, marine keels and bulbs, radiation shielding, ballasting, and industrial components. Manufacturing is carried out via multiple processes including low pressure casting, pressure injection casting on Agrati presses, gravity casting, and centrifugal casting, with downstream CNC machining (3-axis machining centers with 4th axis, EDM wire cutting, conventional and CNC turning/milling) and in-house tooling design using SolidWorks and Solid Edge.

Lemer serves a diversified customer base spanning consumer angling/diving retail, marine boat-building (including Vendée Globe and America's Cup teams, plus Beneteau), nuclear and medical imaging shielding (Areva, CEA, IFREMER), naval defense (DCNS), aerospace (Airbus), and battery manufacturing (Exide, Enersys). The company distributes through an international reseller network covering 45+ countries across Europe, Africa, the Middle East, the Americas, Asia-Pacific, and Oceania, supplemented by direct e-commerce through its own website and direct enterprise sales for custom manufacturing. It operates two wholly-owned sub-brands — Lemer Marine (nautical keels and bulbs) and LEMER PAX (radiation protection) — and holds ISO 9001 certification with approximately 500,000 euros invested annually in safety and environmental compliance. The LEMER trademark is a registered mark with exclusive exploitation rights.

Revenue is generated primarily through one-time product sales of catalog items (4,000+ fishing weight references, lead shot, rolled lead, ingots, chevron bricks, half-shells, transport containers, lead wool, fuse plugs, fuse cores) and bespoke casting contracts for nuclear, marine, and industrial clients. Pricing follows a pay-as-you-go model with a 500 euro HT minimum billing threshold and free shipping above 600 euro HT (excluding Corsica and export). No public revenue, funding, or valuation figures are disclosed in the source materials.

Name

Lemer

Legal name

FONDERIE LEMER

Website

https://fonderie-lemer.com

Company type

Private

Founded year

1878

Operating status

Operating

Headcount range

11–50 employees

Short description

Lemer (Fonderie Lemer) is a French family-owned foundry founded in 1878 that specializes in casting lead and low-melting-point alloys for fishing weights, marine keels and bulbs, nuclear radiation shielding, and industrial applications, exporting to 45+ countries.

Ownership category

akta.pro rank

Product category

Metal Casting and Foundry

NAICS

Nonferrous Metal Die-Casting Foundries (331523)

SIC

Nonferrous Foundries (Castings) (3360)

akta.pro primary industry

Superyacht & Megayacht Manufacturing (IMAJAEAD)

akta.pro secondary industry

Full-Custom Superyacht & Megayacht Manufacturing (IMAJAMAB)

Keywords

• Lead casting foundry
• Low-melting-point alloys
• Radiation shielding products
• Marine keel manufacturing
• Fishing weight production

Headquarters

HQ city

Carquefou

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Lead and Alloy Product Sales: Sale of manufactured lead and low-melting-point alloy products including fishing weights, marine components, radiation shielding, and industrial parts. Products are sold through distributor networks and direct sales.
2. Custom/Bespoke Manufacturing: Custom casting and manufacturing services for specific client requirements, particularly for nuclear, marine, and industrial applications requiring specialized lead alloy components.
3. Lead Substitute Alloys: Development and sale of substitute alloys (zinc, tin, bismuth, tungsten) as alternatives to lead for environmentally conscious applications.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

Fonderie LEMER is a French foundry that casts lead and low-melting-point alloy parts in shapes ranging from grams to 20 tonnes. Its manufactured products serve five main markets: fishing and diving weights, marine keels and bulbs for boats, radiation shielding for nuclear and medical facilities, industrial parts (battery components, fuse plugs, counterweights), and general ballasting, plus substitute alloys based on zinc, tin, bismuth, and tungsten.

Product overview

Lemer is a foundry specializing in lead and low-melting-point alloys, operating since 1878. The company offers a diversified product portfolio organized into six main categories: Fishing/Diving (lead weights and diving ballast), Nautism/Marine (custom keels, bulbs, and ingots for boats up to 20 tonnes), Radioprotection (radiation shielding including chevron bricks, half-shells, transport containers, lead wool, and rolled lead for nuclear and medical facilities), Industry (battery components, fuse plugs, and counterweights), Ballasting (general weighting solutions), and Lead Substitutes (alternative alloys using zinc, tin, bismuth, and tungsten). The company operates Lemer Marine as a dedicated subsidiary for nautical products.

Differentiator

Problem solved

Functional benefit

Brands

• Lemer Marine: Dedicated brand for lead keels and bulbs for boats, serving the nautical/marine industry including Vendée Globe and America's Cup

Quantifiable outcome

• Over 4,000 product references in fishing equipment alone
• +2 more outcomes

Named customers13 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core and major.

• CREAFISHINGcoreTechnology or IntegrationPartnership for development and distribution of specialized soft lures and lead-headed fishing accessories. Lemer produces lead heads for CREAFISHING products including TY Fourrage, TY Shad, and various jig heads under the CREAFISHING brand. Products are marketed as 100% French-made.
• DecathlonmajorChannel Partner/ Reseller/ DistributorMajor retail partner distributing Lemer fishing products through Decathlon's international sporting goods retail network.
• BeneteaucoreChannel Partner/ Reseller/ DistributorLeading French boat builder that uses Lemer lead keels and bulbs for their sailing yachts and boats.
• LEMER PAXcoreStrategic or Co-development PartnerRelated company specializing in radiation protection solutions. Lemer supplies lead components for nuclear shielding applications.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Tecnoseal: Tecnoseal is an Italian foundry specializing in zinc and aluminum sacrificial anodes and marine ballast castings. Highly comparable to Lemer on low-melting-point alloy casting for marine applications and overlap in substitute-alloy (non-lead) product strategy.
• Belmont Metals: Belmont Metals is a long-established US nonferrous metals company (founded 1896) producing lead, tin, zinc, and bismuth alloys for industrial and consumer applications. Comparable to Lemer in alloy expertise, multi-vertical customer base, and heritage operating profile.
• Vulcan Lead Products: Vulcan Lead Products is a US industrial lead manufacturer serving radiation shielding, ballast, and counterweight markets. Closely comparable to Lemer's industrial castings and shielding segments in customer base and product specification.
• Roto Metals: Roto Metals is a US-based nonferrous foundry specializing in lead casting, fishing weights, ballast, and industrial lead products. It is the closest direct peer to Lemer in product mix, with overlapping capabilities in low-melting-point alloy castings and a similar dual B2B/consumer go-to-market.
• Pacorini Metals: Pacorini Metals is a Swiss-Italian nonferrous metals group producing lead, zinc, tin, and bismuth alloys for industrial customers. Comparable to Lemer in low-melting-point alloy product range and European distribution footprint.
• MarShield: MarShield is a North American manufacturer of leaded and non-leaded radiation shielding products for medical, nuclear, and industrial customers. Directly comparable to Lemer's radioprotection product line (chevron bricks, half-shells, transport pots, lead wool).

Broad incumbents

• Pure Fishing: Pure Fishing is one of the world's largest fishing tackle companies, owning brands like Berkley, Abu Garcia, and Penn. Comparable as a broad incumbent fishing-equipment company that overlaps with Lemer's fishing weight/terminal tackle segment at the retail end.
• Mars Fishcare: Mars Fishcare (parent Rapala VMC) is a broad fishing tackle manufacturer with significant presence in fishing weights and terminal tackle. Comparable to Lemer's angling segment as a broader incumbent but with much wider product portfolio beyond weights alone.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks3 records

Key highlights7 records

Customer concentration

• Xplus.google.com/+FonderieLemerPlombAlliagesCarquefou
• Facebookfacebook.com/874386002638753
• LinkedInlinkedin.com/company/fonderie-lemer

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries2 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 Lemer