Sling Supply International Sa

What Sling Supply International Sa does

Sling Supply International S.A., operating as Slingsintt, is a Spain-based designer, manufacturer, and certifier of custom lifting equipment, founded in 1982 and headquartered in Oiartzun, Basque Country, with an engineering and warehouse facility in Lezo housing a 240-ton in-house test bench. The company specializes in heavy-load handling tools for wind-turbine components — nacelles, hubs, towers, rotor blades, and full rotor assemblies — using 3D CAD systems and Finite Element Method (FEM) analysis for structural and mechanism calculations, and issuing certified load test documentation compliant with ASME BTH 1-2 standards.

The business operates two complementary revenue streams. The first is custom-engineered equipment developed in close collaboration with wind-turbine OEMs and installation contractors, supported by R&D, engineering homologation, and non-destructive testing services. The second is the distribution of branded commercial lifting products from partner manufacturers including Van Beest (shackles), Gunnebo (chains and grade 80-100 accessories), CODIPRO (lifting points), Dolezych (polyester slings and roundslings), Terrier (clamps), and KITO (hoists). Recurring after-sales inspection, repair, and certification services (SAT) provide an additional services layer. Since October 2022, Slingsintt has operated as a separate entity within the Royal Van Beest Group, retaining its leadership team (Mikel López, Igor Rodríguez, Eneritz Miranda Muxika) and serving wind, foundry, electric-machines, and general-industry customers globally through direct enterprise sales and trade-show channels.

Name

Sling Supply International Sa

Legal name

Sling Supply International, S.A.

Website

https://slingsintt.com

Company type

Private

Founded year

1982

Operating status

Operating

Headcount range

11–50 employees

Short description

Slingsintt is a Spain-based designer and manufacturer of custom heavy-load lifting equipment, primarily for wind-turbine OEMs, complemented by distribution of branded lifting products and certified after-sales inspection services.

Ownership category

akta.pro rank

Product category

Industrial Lifting Equipment

NAICS

Overhead Traveling Crane, Hoist, and Monorail System Manufacturing (333923)

SIC

Construction Machinery & Equip (3531), General Industrial Machinery & Equipment (3560)

akta.pro primary industry

Lifting Accessories & Rigging (Slings, Shackles, Hooks, Spreaders) (IMAHAJAI)

Keywords

• Custom lifting equipment
• Wind energy lifting
• Lifting accessories distribution
• Load testing services
• Industrial lifting tools

Headquarters

HQ city

Oiartzun

HQ country

Spain

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Lifting Equipment Manufacturing: Design, manufacture, and certification of customized lifting solutions. Products include nacelle lifting tools, hub supports, blade clamps, frame turners, rotor turners, steel tower lifting tools, and specialized lifting beams. Manufactured to customer specifications with engineering collaboration.
2. Commercial Products Distribution: Distribution of branded lifting equipment and accessories including shackles, chains, eye bolts, wire rope, polyester slings, roundslings, and lifting points from manufacturers such as Van Beest, Gunnebo, Terrier, KITO, Dolezych, and CODIPRO.
3. Inspection and After-Sales Services (SAT): Periodic technical inspections at customer facilities for lifting equipment follow-up and repair. Includes magnetic particle and penetrant liquid testing for crack detection, balancer inspection and repair, and coding/inventory services for customer lifting materials.
4. Load Testing and Certification: In-house 240-ton test bench for load testing with certified documentation and marking for audits and inspections. Compliance with ASME BTH 1-2 standards and issuance of homologated certificates.
5. R&D and Engineering Services: Research, development, and innovation services for lifting optimization. Includes homologation services for lifting and transport fixtures, non-destructive testing, and custom engineering design.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels3 records

Core offering

Slingsintt develops, manufactures and supplies custom-engineered lifting equipment for wind turbine components (nacelles, hubs, blades, towers, rotors) and other heavy industrial applications, complemented by distribution of branded commercial lifting accessories and recurring after-sales inspection, load-testing and certification services.

Product overview

Slingsintt (Sling Supply International Sa) is a lifting equipment company with over 40 years of experience, recently acquired by Royal Van Beest Group. The company offers two main product categories: (1) Custom Products - specialized engineering solutions designed and manufactured for specific customer needs, including nacelle lifting tools, blade clamps, frame turners, steel tower lifting tools, rotor assembly tools, and self-balancing lifting devices primarily for wind energy, electric machines, and general industry; and (2) Commercial Products - standardized lifting equipment from partner brands including Van Beest shackles, Gunnebo accessories, Crosby BLOKCAM, Codipro lifting points, and wire rope products. The company also provides engineering services, R&D capabilities, a 240-ton test bench, and after-sales inspection services (SAT). Their products serve wind, foundry, electric machines, and general industry sectors worldwide.

Differentiator

Problem solved

Functional benefit

Products and services

• Nacelle lifting tool

Quantifiable outcome

• Products used worldwide in wind energy sector
• +1 more outcomes

Named customers3 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

Feature3 records

Partnerships

Six partnerships are on record, tiered core.

• Van Beest B.V.coreChannel Partner/ Reseller/ DistributorVan Beest is a key supplier brand for shackles and lifting accessories. Slingsintt distributes Van Beest products including shackles (Green Pin brand), C15 connectors, sockets, thimbles, and turnbuckles through their commercial product catalog.
• Gunnebo IndustriescoreChannel Partner/ Reseller/ DistributorGunnebo is a key supplier of chain products (Grade 80-100), lifting points, and accessories. Slingsintt distributes Gunnebo chains and accessories including KLA 32-10 chains through their commercial catalog.
• CODIPROcoreChannel Partner/ Reseller/ DistributorCODIPRO supplies lifting points and swivels distributed by Slingsintt through their commercial product catalog.
• DolezychcoreChannel Partner/ Reseller/ DistributorDolezych supplies polyester slings and roundslings distributed by Slingsintt through their commercial product catalog.
• TerriercoreChannel Partner/ Reseller/ DistributorTerrier supplies lifting clamps (Terrier Clamps) distributed by Slingsintt through their commercial product catalog.
• KITOcoreChannel Partner/ Reseller/ DistributorKITO supplies hoists and material handling equipment distributed by Slingsintt through their commercial product catalog.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• RUD Group: German manufacturer of lifting and lashing technology (chains, sling systems, lifting points, hoists). Comparable in product breadth and engineering-led custom lifting capability, and a competitor in European wind energy and heavy industry OEM channels.
• Gunnebo Industries: Swedish manufacturer of chain, lifting points, lifting components and load-securement products (Grade 80-100). Direct competitor to Slingsintt's custom lifting tools and an existing channel partner for the Slingsintt commercial catalog, indicating the two compete and collaborate in parallel.
• Dolezych: German manufacturer of roundslings, lashing equipment and lifting accessories. Comparable in textile/round-sling categories Slingsintt distributes, and competes with Slingsintt's own offerings in European industrial and wind-energy supply channels.
• Tractel: French-headquartered global specialist in load handling and measurement, lifting and safety equipment (hoists, tirfor, scaffolding, cradles). Comparable in engineered below-the-hook lifting equipment and the integrated service-plus-product model Slingsintt pursues with engineering, R&D and after-sales SAT.
• Modulift: UK-based manufacturer of modular spreader beams and engineered below-the-hook lifting equipment. Direct competitor in the modular/custom lifting beam segment where Slingsintt launched its new Modular Spreader Beam product in 2025.
• The Crosby Group: US-founded, globally dominant manufacturer of rigging, lifting and load-securement products (shackles, hooks, lifting beams, clamps). Direct competitor to Slingsintt's commercial catalog offering and a benchmark for engineered below-the-hook lifting solutions across wind, oil & gas, marine and construction.
• CODIPRO: Belgian manufacturer of articulated lifting points and swivel rings. Comparable specialty lifting hardware competitor and also a Slingsintt catalog brand; a useful peer for assessing competitive dynamics in rotating lifting points and engineered lifting hardware.
• SpanSet: Swiss-origin global specialist in lifting, rigging and height-safety equipment including roundslings, webbing slings and engineered lifting solutions. Direct overlap with Slingsintt's commercial product line and the safety/inspection positioning Slingsintt targets with its SAT services.

Broad incumbents

• Konecranes: Finland-based global leader in industrial cranes, hoists and material-handling solutions across manufacturing, ports and energy. Overlaps with Slingsintt via custom below-the-hook lifting attachments used on Konecranes' cranes in wind and steel, but operates at substantially larger scale and product breadth.
• MacGregor (Cargotec): Finland-headquartered marine and offshore load-handling specialist within Cargotec, supplying offshore wind turbine installation vessel equipment and heavy-lift deck machinery. Relevant broad incumbent peer for Slingsintt's offshore wind tower and nacelle lifting fixtures via HWG and offshore-wind installation customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/sling-supply-international-s.a.

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Sling Supply International Sa