TSI's Quality policy is to meet or exceed our customers' needs and expectations through continual improvement of our processes, products and services. Below, we have listed links to various forms of certifications:
 

TSI DICKEY-john (Auburn, IL)
ISO/IEC 17025 2017 (Auburn)
ISO 9001:2015 (Auburn)

TSI Incorporated (Shoreview, MN)
TSI Incorporated ISO 9001:2015 Certificate (Shoreview) 
ISO/IEC 17025:2017 (Shoreview)

TSI Instruments Ltd (High Wycombe, UK)
ISO/IEC 17025:2017 (High Wycombe)
TSI Instruments Ltd. BS EN ISO 9001:2015 Certificate
TSI Instruments Ltd: ISO 14001:2015

TSI Instruments Singapore (Singapore)
ISO 9001 : 2015 (Singapore) 

TSI MSP (Shoreview, MN)
MSP, a Division of TSI: ISO 9001:2015

MSPC Korea (Republic of Korea)
MSPC Korea, a Division of TSI: ISO 9001:2015