Tetra Inspection es una empresa líder de control de calidad de terceros que ayuda a importadores, minoristas y marcas a proteger sus cadenas de suministro. Con una red de inspectores experimentados en más de 45 países, ofrecemos servicios de inspección rápidos y confiables que reducen las tasas de defectos, previenen costosas retiradas de productos y garantizan que sus productos cumplan con los estándares internacionales — siempre.
Capacitar a empresas de todos los tamaños para que se abastezcan con confianza, proporcionando servicios de control de calidad accesibles, transparentes e impulsados por la tecnología. Creemos que cada importador — desde compradores primerizos hasta empresas globales — merece el mismo nivel de protección de la cadena de suministro.
Convertirnos en el socio de control de calidad más confiable del mundo combinando una profunda experiencia en la industria con tecnología innovadora — haciendo las inspecciones más rápidas, inteligentes y accesibles que nunca.
Clientes en el Mundo
Países Cubiertos
Inspectores
Años de Experiencia
Nuestro equipo directivo aporta décadas de experiencia combinada en control de calidad, fabricación y comercio internacional.
Fundador y CEO
Directora de Operaciones
Jefe de Aseguramiento de Calidad
Gerente de Relaciones con Clientes
Gerente Regional — Asia
Gerente Regional — EMEA
Un enfoque riguroso basado en estándares, desarrollado a lo largo de dos décadas de experiencia en campo.
Every inspection Tetra conducts follows a structured methodology rooted in international standards — primarily ISO 2859-1 (sampling procedures for inspection by attributes) and the AQL (Acceptable Quality Limit) system. When you book an inspection, our quality engineers first review your product specifications, technical drawings, purchase order requirements, and any applicable regulatory standards to build a customized inspection checklist tailored to your product category.
On-site, our inspectors perform a systematic evaluation that begins with a production status check — verifying that the correct quantity of goods is packed and ready for inspection. We then execute AQL-based random sampling, selecting units from different production batches, cartons, and packing positions to ensure statistical representativeness. Each sampled unit undergoes visual inspection, dimensional measurement, functional testing, and packaging verification against your approved specifications.
Defects are classified into three categories — critical (safety hazards or regulatory non-compliance), major (functional failures or significant aesthetic defects that would cause consumer complaints), and minor (slight imperfections within acceptable tolerances). Our pass/fail determination is based on the AQL levels you specify, typically 0.0 for critical defects, 2.5 for major defects, and 4.0 for minor defects.
For factory audits, we follow a multi-pillar assessment framework covering quality management systems, production capacity, material and component control, process control, final inspection procedures, laboratory and testing capabilities, and personnel competency. Social compliance audits adhere to SA 8000, SMETA, and BSCI protocols depending on client requirements. Every audit produces a scored report with clear corrective action recommendations and follow-up timelines.
Beyond technical quality, we are committed to responsible sourcing practices. Conozca nuestras iniciativas de sostenibilidad y abastecimiento ético.
Estos ejemplos de nuestro historial de inspecciones demuestran el impacto tangible del control de calidad profesional en los resultados de la cadena de suministro.
A mid-sized European fashion retailer sourcing from five factories in Guangdong, China was experiencing a 12% defect rate on garment shipments — nearly triple the industry average. Returns and markdowns were costing them over €200,000 per season. They engaged Tetra Inspection to implement systematic during-production and pre-shipment inspections across all five suppliers.
Over two production seasons, our inspectors identified recurring root causes: inconsistent fabric tension during cutting, inadequate thread tension calibration on overlock machines, and color matching failures between fabric lots. We worked with the retailer to communicate detailed corrective action plans to each factory, establishing clear quality benchmarks and re-inspection triggers.
Within six months, the retailer's shipment defect rate dropped from 12% to 7.2% — a 40% reduction. Returns decreased proportionally, saving an estimated €85,000 per season and significantly improving their customer satisfaction scores.
A US-based toy distributor contracted a new factory in Shantou, China to produce a line of wooden educational toys for the holiday season. The order represented 25,000 units destined for major retail chains. The distributor booked a pre-shipment inspection with Tetra to verify the production batch before containerization.
During the inspection, our inspector discovered that 8% of sampled units had small wooden components that failed the small parts cylinder test — a critical safety requirement under ASTM F963 and EN 71 for toys intended for children under 36 months. Additionally, several paint samples showed lead content exceeding the 90 ppm limit specified by CPSIA (Consumer Product Safety Improvement Act).
The shipment was rejected and the factory was required to rework the entire batch — resizing the small components and re-finishing with certified non-toxic paint. A follow-up inspection confirmed compliance before the goods shipped. Without the pre-shipment check, the distributor would have faced a mandatory product recall, potential CPSC enforcement action, and severe reputational damage.
An electronics brand sourcing Bluetooth speakers from a factory in Dongguan, China noticed inconsistent battery performance in recent shipments — some units were showing 30% lower runtime than specified. They engaged Tetra Inspection to conduct a factory audit with a specific focus on component sourcing and incoming material quality control.
Our audit team discovered that the factory had quietly switched battery cell suppliers to reduce costs. The replacement cells, while labeled with the same brand markings, showed inconsistent capacity readings during our voltmeter and discharge testing. Cross-referencing the cell batch codes with the original manufacturer confirmed the cells were counterfeit — relabeled units from an unauthorized source with no UL or IEC 62133 certification.
The client immediately required the factory to revert to the approved battery supplier and implemented a Tetra-managed incoming component verification program. This prevented the shipment of approximately 15,000 units with uncertified batteries — avoiding potential overheating incidents, lithium battery shipping violations, and liability exposure that could have cost millions.
Mantenemos los más altos estándares de la industria y somos reconocidos por los principales organismos de acreditación internacionales y organizaciones profesionales.
Our ISO 17020 accreditation certifies Tetra Inspection as a Type A inspection body — fully independent and impartial, with no commercial interest in the products or factories we inspect. This is the gold standard for third-party inspection organizations and ensures our reports are objective, reliable, and accepted by regulatory authorities worldwide.
We hold ISO 9001:2015 certification for our internal quality management system, ensuring consistent service delivery, continuous improvement, and standardized processes across all 45+ countries where we operate. Our AQSIQ certification authorizes us to conduct inspections on goods destined for or exported from China, and our CNAS accreditation is recognized under mutual recognition agreements with accreditation bodies in over 100 countries.
Our auditors are certified to conduct social compliance audits under SA 8000, SMETA, and BSCI frameworks. We are an active member of IFIA (International Federation of Inspection Agencies) and maintain partnerships with industry associations across the quality control, supply chain management, and international trade sectors.
Tetra Inspection is a third-party quality control company that provides product inspection, factory audit, and supplier verification services. We help importers, retailers, and brands ensure their products meet international quality standards before shipment, reducing defect rates and preventing costly recalls.
Tetra Inspection operates in over 45 countries across Asia, Europe, Africa, and the Americas. Our largest presence is in major manufacturing hubs including China, India, Vietnam, Turkey, Bangladesh, and Indonesia, with local inspectors available for rapid deployment.
Tetra Inspection holds ISO 17020 accreditation for inspection bodies, ISO 9001:2015 for quality management systems, AQSIQ certification, and CNAS accreditation. Our auditors are qualified to conduct SA8000 social audits and we are a BSCI affiliate.
Booking an inspection is simple. Submit a request through our online quote form with your product details, factory location, and preferred inspection date. Our team will confirm availability and provide a quote within a few hours. Most inspections can be arranged within 24–48 hours.
Our inspection reports include detailed findings with photographs, AQL-based defect classification (critical, major, minor), measurements and specifications verification, packaging and labeling checks, and a clear pass/fail recommendation. Reports are delivered digitally within 24 hours of the inspection.
A standard product inspection typically takes one full working day (man-day) at the factory. The exact duration depends on the order size, product complexity, and the scope of checks required. For large orders, multi-day inspections may be needed. You receive the report within 24 hours after the inspection is completed.
Únase a más de 2000 empresas que confían en Tetra Inspection para proteger su cadena de suministro.
