TSL Laboratory Services Limited (TSL LS) was born out of TSL in 2019, and is now one of its subsidiaries. TSL LS is a full-service analytical laboratory that was the first ISO 9001 certified (now ISO 17025 accredited) laboratory in the Caribbean. It is the largest food testing laboratory in the Caribbean in terms of volume, and does significant work in the areas of occupational health and safety and environmental testing. TSL is currently ISO 17025 accredited by the American Association for Laboratory Accreditation (A2LA) to offer an extensive range of microbiological, and chemical analyses.