COMPOSITES MARTIARTU | SMC | CF-SMC

What COMPOSITES MARTIARTU | SMC | CF-SMC does

Composites Martiartu (legal entity Mecanizados Martiartu SL) is a privately held Spanish composite parts manufacturer founded in 1998 and headquartered in Arrigorriaga, Bizkaia. The company specializes in Sheet Moulding Compound (SMC) and Carbon Fiber Sheet Moulding Compound (CF-SMC/CSMC) compression molding, serving industrial buyers across seven verticals: automotive and electric vehicle manufacturing (its primary segment), construction and architecture (including ventilated facades), electrical and energy, naval, food and sanitary, telecommunications, and mass transit transport. Its primary functional focus is the replacement of metal components with lightweight composite alternatives, with claimed weight reductions of 25–35% versus steel and up to 40% versus aluminum when using CF-SMC, alongside corrosion immunity and tunable thermal expansion characteristics.

The company's core technology stack centers on hot compression molding with hydraulic presses up to 1,250 tonnes and plate dimensions of 3,500x1,800 mm, enabling large composite part production for vehicles, building facades, and mass transit interiors. Process capabilities are vertically integrated within a single 5,500+ m² facility, including 5-axis waterjet cutting (up to 64° incline, 200 mm thickness), CNC machining integrated with SolidWorks CAD-CAM, and robotic Powder In Mould Coating (PIMC) for finished painted surfaces directly out of the mold. A formalized strategic partnership with Geocad Group (announced February 2023) provides mold design, moldflow simulation, and tool manufacturing services that Composites Martiartu does not produce in-house. The firm holds ISO 9001 and ISO 14001 certifications since 2009 and is developing Phenolic SMC chemistry aligned with UN ECE R118, UN ECE R100 Rev.3, and EN 45545-2 HL3 fire-safety standards for EV battery enclosures and rail interiors.

Composites Martiartu generates revenue through three streams: (1) custom project-based manufacturing of SMC and CF-SMC compression-molded parts sold directly to enterprise OEMs via quote requests and potentially multi-year contracts; (2) an e-commerce online store selling standard polyester SMC plates (18% and 25% glass fiber reinforcement), CF-SMC plates, PRFV mounting plates, and cutting/machining services at unit prices ranging from EUR 112.50 to EUR 1,363.62; and (3) professional services for precision waterjet cutting, CNC machining, mold management, and mold maintenance. Distribution is omnichannel — direct B2B enterprise sales combined with e-commerce self-service — and marketing is anchored by JEC World Paris trade show participation (2024 and 2026), LinkedIn, a multilingual trilingual website, and earned media coverage from regional Basque business publications tied to its R&D program participation.

Name

COMPOSITES MARTIARTU | SMC | CF-SMC

Legal name

Mecanizados Martiartu SL

Website

https://compositesmartiartu.net

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

1–10 employees

Short description

Composites Martiartu is a Spanish SMC and Carbon Fiber SMC composite manufacturer serving automotive, EV, construction, transport, and electrical sectors. Operating from Arrigorriaga since 1998, it runs a 5,500 m² facility with 1,250-tonne presses and a strategic Geocad mold partnership.

Ownership category

akta.pro rank

Product category

Industrial Composite Manufacturing

NAICS

All Other Plastics Product Manufacturing (326199), Plastics Product Manufacturing (3261)

SIC

Plastics Products, Nec (3089), Miscellaneous Plastics Products (3080)

akta.pro primary industry

Custom Injection Molding & Contract Manufacturing (Job Shops/CMs) (IMANAFAJ)

Keywords

• SMC compression molding
• Carbon Fiber SMC
• Composite parts manufacturing
• 5-axis waterjet cutting
• CNC machining services

Headquarters

HQ city

Arrigorriaga

HQ country

Spain

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. SMC/CF-SMC Composite Parts Manufacturing: Custom manufacturing of composite parts through compression molding of SMC and Carbon Fiber SMC materials for industrial clients in automotive, transport, construction, energy, electrical, and other sectors. Revenue is project-based, typically requiring custom molds and per-unit production pricing.
2. Online Store (Plates and Panels): E-commerce sale of standard polyester SMC plates (18% and 25% glass fiber reinforcement), carbon fiber SMC plates, PRFV mounting plates, and cutting/machining services through the company's online store at compositesmartiartu.net/tienda. Products are priced per unit with volume discounts for quantities above 100 units.
3. Precision Machining and Waterjet Cutting Services: Precision CNC machining and 5-axis waterjet cutting services for plates and parts, offered both through the online store and directly to industrial clients. Pricing per operation or project.
4. Mold Management and Engineering Services: Mold design, manufacturing, testing, and preventive maintenance services for SMC tooling, often delivered through the strategic Geocad Group partnership.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

Compression molding of SMC and CF-SMC composite parts using hot presses up to 1,250 TN with mold plates up to 3,500 x 1,800 mm. Complementary services include 5-axis waterjet cutting, 3-axis and 5-axis CNC machining, robotic PIMC (Powder In Mould Coating), engineering and prototyping, and mold design/management executed in partnership with Geocad Group. Standard polyester plates (18% and 25% fiberglass) and Carbon Fiber SMC (CSMC) plates are sold via the company's online store.

Product overview

Composites Martiartu is a manufacturer specializing in Sheet Moulding Compound (SMC) and Carbon Fiber SMC (CF-SMC) compression molding technology. The company operates multiple presses up to 1250 tons with plates up to 3500x1800 mm, offering over 25 years of experience. The core offering consists of SMC and CF-SMC molding services supplemented by robotic PIMC (Powder In Mould Coating) painting, 5-axis waterjet cutting, CNC machining, engineering and prototype development, and mold management/manufacturing through the Geocad Group partnership. The product portfolio includes polyester plates with 18% and 25% fiberglass reinforcement, carbon fiber SMC plates (CSMC), PRFV mounting plates, and ventilated facade panels. The company also operates an online store for purchasing standard composite plates with cutting and machining services.

Differentiator

Problem solved

Functional benefit

Brands

• SMC: Sheet Moulding Compound - main composite technology
• CSMC / CF-SMC
• PIMC

Products and services

• SMC Compression Molding Service Custom compression molding of Sheet Moulding Compound parts using hot presses up to 1,250 TN with mold plates up to 3,500 x 1,800 mm, serving automotive, EV, construction, transport, energy, electrical, sanitary, telecommunications, food, and naval OEMs.
• CF-SMC (Carbon Fiber SMC) Compression Molding Service Compression molding of Carbon Fiber SMC parts for high-performance structural composite applications, enabling lightweight structural parts beyond conventional SMC.
• Phenolic SMC Molding for EV Battery Protection Compression molding of Phenolic SMC parts engineered for EV battery thermal runaway protection, targeting electric vehicle battery enclosure and underbody applications.
• PIMC (Powder In Mould Coating) Service Robotic application of powder coating directly in the mould during compression molding, delivering a finished surface on SMC parts without secondary painting operations.
• 5-Axis Waterjet Cutting Service 5-axis waterjet cutting of composite parts for trimming, profiling, and finishing of molded SMC and CF-SMC components.
• 3-Axis and 5-Axis CNC Machining Service CNC machining of composite parts using 3-axis and 5-axis equipment for precision finishing of SMC and CF-SMC molded components.
• Engineering and Prototyping Service SolidWorks-based CAD-CAM engineering, prototyping, and process development for composite parts, supporting customers from concept through to serial production.
• Mold Management, Design and Maintenance Service Mold design (delivered via strategic partnership with Geocad Group), mold manufacturing, and mold maintenance to support compression molding programs.
• Polyester Plates with 18% Fiberglass Standard polyester SMC plates reinforced with 18% fiberglass, sold via the online store with volume discounts above 100 units, for construction, infrastructure, and industrial applications.
• Polyester Plates with 25% Fiberglass Standard polyester SMC plates reinforced with 25% fiberglass, sold via the online store with volume discounts above 100 units, for higher-load construction and industrial applications.
• Carbon Fiber SMC Plates (CSMC) Standard carbon fiber SMC plates sold via the online store, providing a higher-performance alternative to fiberglass-reinforced plates for demanding structural applications.
• PRFV Mounting Plates Standard PRFV (Poliéster Reforzado con Fibra de Vidrio) mounting plates for industrial installation and infrastructure use.
• Ventilated Facade Panels Standard SMC ventilated facade panels for construction and architectural applications.

Quantifiable outcome

• 25-35% weight reduction vs. equivalent steel parts; up to 40% weight reduction vs. aluminum with CF-SMC
• +3 more outcomes

Named customers1 record

Segments7 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature5 records

Partnerships

One partnership is on record.

• Geocad GroupcoreStrategic or Co-development Partner · 8 February 2023Composites Martiartu and Geocad Group have maintained a close collaboration for over 20 years, formalized through a strategic partnership agreement signed in 2023. Geocad Group (ISO 9001 certified, operating in Spain, Portugal, China, Mexico, and Morocco) specializes in comprehensive mold design, second-stage tooling, moldflow analysis, and reverse engineering. Geocad designs and manufactures SMC compression molds, while Composites Martiartu handles mold testing and pre-series production. This partnership guarantees the most demanding quality, precision, and deadline requirements for composite projects.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Polynt Group: Italian-headquartered global composites manufacturer producing SMC and BMC compounds and molded parts for automotive, electrical, and construction end markets. Direct comparable to Composites Martiartu as a vertically integrated SMC materials and parts supplier serving the same industrial verticals.
• Core Molding Technologies: US-listed SMC and compression molded composites manufacturer serving truck, automotive, construction, and industrial markets. Closely comparable in process technology (SMC compression molding), product range, and B2B industrial customer mix, though at larger scale.
• IDI Composites International: US-based manufacturer of SMC, BMC, and thermoplastic compounds with molding operations supplying automotive, electrical, and industrial customers. Directly comparable as a specialty composite molder serving overlapping end markets.
• Menzolit GmbH: German SMC compound and compression molding specialist supplying automotive, electrical, and transport applications across Europe. Closely comparable to Martiartu in technology (SMC compression molding), customer mix, and European industrial focus.
• Lorenz Kunststofftechnik: German precision SMC and BMC parts manufacturer serving automotive, electrical, and medical industrial customers. Closely comparable mid-sized European competitor with similar specialty compression molding focus.
• Plasan Sasa: Israeli composite parts manufacturer producing compression-molded SMC, carbon fiber, and ballistic composite parts for automotive, defense, and aerospace customers. Comparable in SMC and carbon fiber composite technology with similar Tier-1 supplier business model.

Broad incumbents

• Continental Structural Plastics (Teijin Automotive): Now part of Teijin, CSP is a large North American SMC and composite Class A body panel supplier serving major automotive OEMs. Comparable to Martiartu on SMC technology and automotive end market, but at much larger scale and with broader geographic reach.
• Faurecia (FORVIA): Global French automotive Tier-1 with composites and interior systems business units serving EV battery and lightweight structural needs. Comparable in automotive composite end market and EV battery adjacency, but as a multi-product incumbent rather than an SMC specialist.
• Plastic Omnium: French-listed Tier-1 automotive supplier with significant composites and plastics operations for exterior body panels and fuel/energy storage systems. Comparable end-market exposure (automotive lightweighting, EV structures) but operates at vastly larger scale across broader plastic part categories.

Emerging players

• SGL Carbon: German carbon fiber and composite components manufacturer serving automotive, aerospace, energy, and industrial markets with carbon fiber reinforced parts and battery enclosures. Comparable on carbon fiber composite technology and EV battery enclosure focus, but at much larger scale and broader product portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/composites-martiartu

Compliance2 records

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 COMPOSITES MARTIARTU | SMC | CF-SMC