About YSI
YSI was founded on the spirit of innovation. The burning desire to solve a problem, develop a solution, and change the world is woven into the fabric of YSI and our team.
It all started in Yellow Springs, Ohio in 1948. In the beginning, two engineers, Hardy Trolander and John Benedict, embraced their entrepreneurial side, setting out to solve the problems of the day through the application of good science. They were joined by chemist David Jones.
We work with industry and government professionals to provide monitoring and sampling solutions for process improvement and to protect our planet's natural resources.
About YSI
Behind the Brand | An Inside Look at YSI
Behind-the-scenes access to our company's people and their daily operations, values, and what...
About YSI
YSI 75th Anniversary Gathering
YSI celebrates 75 years of innovation, collaboration, and dedication to high-quality...
About YSI
Mission: Water | Addressing Critical Water Issues
Mission: Water is an annual publication that brings awareness to our most precious...
About YSI
Consult an Expert for Your Water or...
We have experts in all types of water related projects and applications including: Baseline...
About YSI
Water Abundance | Who's Minding the Planet? | YSI
(Video Transcription) It was the beginning of a particularly active year. In fact, this activity...
About YSI
Water Scarcity | Who's Minding the Planet? | YSI
(Video Transcription) It was the end of an exceptionally dry year. In fact, it was the end of an...
About YSI
Water Quality | Who's Minding the Planet? | YSI
(Video Transcription) It was the start to a particularly eventful summer. Another summer where...
Water Quality Sampling
Thornton Creek Restoration | Urban Watershed
A wilderness teems just out of sight in rivers, actually below the rivers in the saturated soils,...
About YSI
Who's Minding the Planet? The Story of YSI Part 1
YSI turned 60 in 2008. The Story of YSI is a two-part video series to celebrate who we were at...
About YSI
Who's Minding the Planet? The Story of YSI Part 2
YSI turned 60 in 2008. The Story of YSI is a two-part video series to celebrate who we were at...
About YSI
YSI Professional Series Water Quality Meters:...
YSI Professional Series water quality instruments are smart, tough, and versatile. This Mac vs...
