ISQ

ISQ

Instituto de Soldadura e Qualidade

Porto Salvo, Oeiras, Portugal

WindSolarHydrogenOtherPrivate company
Profile last updated: April 3, 2026

About

ISQ is a private company headquartered in Porto Salvo, Portugal specializing in Wind, Solar, Hydrogen.

ISQ is a private, independent Portuguese technology institute offering engineering, consulting, inspection, testing, certification, training, metrology and R&D services across several sectors, including energy. Its renewable energy activities include wind turbine component inspection, quality control on hydro and wind projects, green hydrogen work, and energy efficiency and renewable integration consulting.

Headquarters

Porto Salvo, Portugal

Company type

Private company

Focus areas

inspectiontestingcertificationmetrologywind energygreen hydrogenenergy efficiencyR&DTaguspark

Products & services

Business models

B2B

Value chain

EngineeringConsultingR&DAsset Management

Service areas (1)

  • Energy sector services

    Engineering, inspection, testing, energy efficiency audits, support for conversion to renewable energy, and wind and hydrogen quality control.

Locations

Headquarters

Av. Prof. Dr. Cavaco Silva 33, 2740-120, Porto Salvo, Oeiras, Portugal

Projects

4

Windfloat Atlantic

Offshore floating wind farm

ISQ provided quality control during construction of the Windfloat Atlantic floating offshore wind farm, after earlier R&D work on the Windfloat demonstrator.

Viana do Castelo, Portugal

Gouvães-Daivões penstock

Hydroelectric penstock

ISQ has been involved since 2017 and currently provides all weld quality control for the large-diameter penstock linking the Gouvães and Daivões reservoirs.

Phasewind

Wind turbine tower weld inspection

Automated high-speed ultrasonic and visual weld inspection system for wind turbine towers, developed by ISQ.

Wind component factory inspections

Wind turbine component manufacturing inspection

Factory quality control and NDT inspections of wind turbine components for EDP Renováveis and Vestas.

Credentials & affiliations

Certifications

Accreditation for calibration and testing laboratories (ISO/IEC 17025)

Issued by: IPAC

Partnerships

H2 CoLAB Green Hydrogen, COTR (Centro Operativo e de Tecnologias de Regadio), Aralab

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