International NDT

What International NDT does

International NDT Ltd is a UK-based specialist non-destructive testing (NDT) services provider, incorporated in July 2019 as a spin-off from the NDT division of Marine Results International Ltd, where the originating team had accumulated 13 years of marine-sector experience. The company operates from two physical facilities — its headquarters in Hamble, Hampshire (a 60-tonne / 11-metre horizontal tensile testing machine, fluorescent dye penetrant inspection line, and central processing facility) and a Mediterranean facility in Palma de Mallorca (housing a Water Washable Fluorescent Penetrant line for complex-shaped and threaded metal parts) — and supplements these with a globally mobile inspection team that travels to client docksides, yards and production facilities.

The core technical offering spans ultrasonic testing, phased array ultrasonics (with B-scan and C-scan imaging for thickness and defect mapping), fluorescent dye and visible-red penetrant inspection, thermography, shearography, general visual survey work, and destructive/proof load testing on the 60-tonne tensile rig. Inspection procedures have been adapted from aerospace (EN4179 / NAS410 / SNT TC-1A qualified personnel) for use on composite and metallic structures, allowing detection of disbonds, delaminations, inclusions, porosity, voids, and impact damage in GRP, carbon composites and metals.

The business model is professional services revenue from project-based, quote-priced inspection engagements (no published price list). The primary vertical is marine and superyacht (QA, baseline assurance, damage assessment, pre-purchase surveys, insurance work — anchors include Rondal, Royal Huisman, Baltic Yachts, Perini Navi, J-Class Lionheart), with secondary verticals in power generation (wind and tidal energy), defence, automotive/manufacturing, and aerospace/R&D. Sales are driven via direct outreach by project managers, repeat-client relationships, industry events (Advanced Engineering Show, BINDT/Composites UK/British Marine memberships), and a website featuring case studies and news. The GTM motion is enterprise field sales backed by event-driven demand generation, with the firm positioned as a bespoke, high-touch inspection provider rather than a scale-volume operator.

Name

International NDT

Legal name

International NDT Ltd

Website

https://int-ndt.com

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

1–10 employees

Short description

International NDT provides non-destructive testing (ultrasonic, phased array, penetrant, thermography, shearography) and 60-tonne load testing for composite and metallic structures, primarily serving superyacht and marine clients with mobile inspection teams and facilities in the UK and Spain.

Ownership category

akta.pro rank

Product category

Non-Destructive Testing Services

NAICS

Testing Laboratories and Services (541380)

SIC

Services-Testing Laboratories (8734)

akta.pro primary industry

Non-Destructive Testing (NDT) & Inspection Services (IMAIACAI)

akta.pro secondary industries

Marine Surveys, Testing & NDT (Thickness Gauging, UT/MPI, Pressure Testing, Commissioning) (TLAHAMAK), Non-Destructive Testing (NDT) & Advanced Inspection (Phased Array, TOFD, Guided Wave) (EUAEAKAF), Third-Party Certification, Code Compliance & Regulatory Inspection (ASME/API/ISO) (EUAEAHAN)

Keywords

• Non-destructive testing
• Ultrasonic inspection services
• Composite materials testing
• Marine structural inspection
• Load testing services

Headquarters

HQ city

Hamble, Southampton

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. NDT Inspection Services: Bespoke non-destructive testing inspection services for composite and metallic parts across multiple industry sectors including marine, power generation, automotive, aerospace, and defence. Services include ultrasonic testing, phased array inspection, penetrant testing, and general survey work.
2. Destructive Testing / Load Testing Services: 60-tonne capacity horizontal tensile testing machine provides destructive testing services to determine safe working loads for yacht rigging components, hydraulic cylinders, and lifting equipment. One-time testing per component.
3. Hydraulic Cylinder Servicing: Servicing of hydraulic cylinders for large superyachts, including testing of vang, backstay, and other hydraulic systems.
4. On-site Inspection Services: Mobile inspection teams travel worldwide to client locations, docksides, and production facilities to perform inspections on-site, complementing in-house facility-based services.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels8 records

Core offering

International NDT provides bespoke non-destructive testing inspection services for composite (GRP, carbon fibre) and metallic structures across marine, defence, aerospace, automotive, and power generation sectors. Services span ultrasonic testing, phased array ultrasonics, dye penetrant inspection, and destructive/load testing using a custom 60-tonne horizontal tensile testing machine. Inspection is delivered via mobile field teams worldwide or at the company's two fixed facilities in the UK (Hamble) and Spain (Palma de Mallorca).

Product overview

International NDT provides a portfolio of non-destructive testing services for composite and metallic structures. The core offerings include Ultrasonic Testing and Phased Array Ultrasonics (imaging inspection methods), Penetrant Testing (surface flaw detection), Load Testing (60-tonne destructive/proof testing), General Survey (visual inspection), and Other NDT Methods (Thermography, Shearography). These are organized into service verticals covering Marine (yacht survey, mast/rigging/hull inspection), Composite (carbon/GRP inspection), Metallics, Power Generation (wind/tidal energy), Defence, and Manufacturing sectors. The company operates from facilities in Hamble, UK and Palma de Mallorca, with globally mobile inspection teams.

Differentiator

Problem solved

Functional benefit

Products and services

• Ultrasonic Testing Versatile ultrasonic inspection method using aerospace-grade flaw detection equipment to examine GRP, carbon composites, and metallic parts. Detects disbonds, delaminations, inclusions, porosity, and other discontinuities in monolithic or cored composite laminates and metallic components.
• Phased Array Ultrasonics Advanced ultrasonic inspection using phased array technology to deliver detailed volumetric scanning of composite and metallic structures. Produces B-scan cross-section and C-scan colour mapping for thickness and defect analysis data.
• Penetrant Testing Surface-breaking flaw detection using in-house fluorescent water washable and visible red penetrant methods on-site and in-house. Targets complex shaped and threaded metal parts with higher sensitivity than purely on-site techniques.
• Load Testing Destructive and proof load testing using a 60-tonne horizontal tensile testing machine (11 metres long, hydraulically operated, externally calibrated to ISO 7500-1:2004) for rigging, spars, hydraulic cylinders and lifting equipment on superyachts. Determines safe working loads for components such as splices, vang and backstay systems.
• General Survey Visual and conventional surveys covering vessel structure with specialism in masts, rigging, deck gear, and running rigging for vessels ranging from small racing craft to large yachts. Includes pre-purchase and damage surveys.
• Other NDT Methods Supporting non-destructive methods including Thermography (thermal imaging) and Shearography, used as complementary inspection techniques through established equipment providers and industry partners. Includes bespoke inspection design and development of manufacturing techniques.
• Marine NDT Services Non-destructive testing for yachts covering mast NDT, hull and structure inspection, keel and appendage assessment, damage assessment, and baseline assurance surveys for the leisure marine industry from weekender boats to 90-metre superyachts.
• Composite NDT Services NDT inspection for all composite components including carbon fibre, glass fibre, monolithic, and cored laminates using aerospace inspection procedures adapted for marine and industrial applications. Detects voids/porosity, impact damage, skin-to-core delamination, and foreign inclusions.
• Metallics NDT Services Inspection of metallic forgings and welded parts using ultrasonic and penetrant testing methods for volumetric assessment or surface-breaking flaw detection in metals.
• Power Generation NDT Services R&D and quality assurance inspections of parts manufactured for wind and tidal energy systems, supporting quality demonstration, manufacturing method development, and life extension of in-service components.
• Defence NDT Services Quality assurance inspections of defence components with re-inspection at service intervals to ensure continued integrity of parts exposed to demanding environments.
• Manufacturing / Automotive NDT Services Non-destructive testing assistance for manufacturing at R&D and quality assurance stages with bespoke inspection programmes designed around construction processes and individual parts, including high-quality carbon fibre panels and glue bonded structures used in automotive applications.

Quantifiable outcome

• Detection of surface-breaking flaws in complex shaped and threaded metallic parts using fluorescent dye penetrant inspection (more sensitive than on-site techniques)
• +4 more outcomes

Named customers10 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

AI capability8 records

Feature6 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Rondal BVcoreStrategic or Co-development PartnerInternational NDT has partnered with Rondal BV, a superyacht spar and structures manufacturer, for over 5 years. International NDT provides quality assurance inspection services for newly constructed masts, booms, systems, and composite structures for the world's largest yachts. The partnership enables both companies to develop their systems and processes, resulting in higher quality end products and tailored inspection data reporting. International NDT acts as an independent party providing reliable quality assurance data trusted by Rondal. Notable projects include inspection of Sea Eagle II (81m Royal Huisman) and Canova (43m Baltic Yachts).
• Lavender NDT LtdcoreStrategic or Co-development PartnerInternational NDT's inspection team is trained in partnership with Lavender NDT Ltd, reaching EN4179/NAS410/SNT TC-1A standards. Lavender NDT Ltd is the certified training partner providing the formal NDT certification that underpins International NDT's inspector qualifications.
• Marine Results International LtdcoreStrategic or Co-development PartnerInternational NDT was founded by the team that operated the NDT division within Marine Results International Ltd. The two companies maintain a close working relationship; Marine Results manufactures rigging packages at the Hamble facility and International NDT supports Marine Results to ensure all their products are safe through destructive testing and inspection services. International NDT evolved from Marine Results' 13-year NDT experience.
• Royal HuismanminorStrategic or Co-development PartnerInternational NDT provided NDT inspection services for the 81m Sea Eagle II built by Royal Huisman (world's largest aluminium sailing yacht), as part of the quality assurance programme in partnership with Rondal. This represents a project-based collaboration rather than an ongoing formal partnership.
• Baltic YachtsminorStrategic or Co-development PartnerInternational NDT provided NDT inspection services for the 43m Canova built by Baltic Yachts, as part of the quality assurance programme in partnership with Rondal. This represents a project-based collaboration rather than an ongoing formal partnership.

Scale indicators6 records

Recent moves8 records

Expansion highlights4 records

Broad incumbents

• SGS: World's largest TIC company with industrial inspection and NDT service lines covering marine, energy, and manufacturing — directly comparable testing services to International NDT's inspection portfolio.
• Bureau Veritas: Global testing, inspection, and certification major with marine and offshore NDT services for classification and asset integrity — competes in the broader NDT testing category where International NDT operates but at vastly larger scale.
• Lloyd's Register: Maritime classification society providing survey, inspection, and NDT services for the marine industry — directly comparable inspection regime and customer base in the superyacht and commercial marine segments.
• TÜV SÜD: International TIC firm offering NDT and inspection services for industrial, marine, and energy clients — comparable testing services in ultrasonic and composite inspection, though serving a much broader portfolio.
• Applus+ IDIADA: Global TIC group providing NDT, inspection, and asset integrity services across marine, aerospace, defence, and industrial sectors — broad incumbent with overlapping ultrasonic and penetrant inspection capabilities.
• Intertek: Global TIC firm providing industrial inspection, NDT, and materials testing across marine, aerospace, and energy — comparable testing services business serving adjacent verticals to International NDT.
• RINA: Marine classification and certification body offering NDT and survey services to yacht and commercial vessel operators — overlapping marine inspection activities with International NDT, particularly on composite and metallic structures.
• DEKRA: Global TIC and inspection services provider active in industrial NDT, materials testing, and certification — comparable testing services to International NDT but at much larger corporate scale.

Direct peers

• Force Technology: Specialist NDT and inspection provider serving wind energy, marine, and industrial clients with ultrasonic and composite inspection expertise — most directly comparable specialist peer to International NDT's service mix.
• Lavender NDT: UK-based specialist NDT firm and International NDT's certified training partner providing EN4179/NAS410/SNT TC-1A training — closely comparable specialist NDT services firm in the UK market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/Int_NDT
• Facebookfacebook.com/InternationalNDT
• LinkedInlinkedin.com/company/international-ndt
• Instagraminstagram.com/int.ndt

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 International NDT