For our Institute, quality is a fundamental pillar. Every year we renew our UNE-ISO 20252 and UNE-ISO 9001 certificates with auditors who validate our compliance, and we demand the same quality from our suppliers. TESI provides us with the software and services we need for our quantitative research, whether in CAPI, CATI, or CAWI surveys. We trust them and feel completely satisfied with the excellent service we receive.
