About YSI

Who's Minding the Planet?

About Us

YSI is part of Xylem Analytics and a leading provider of water measurement solutions.

Xylem Analytics’ global brands have been leaders in the water and laboratory instrumentation market for decades, and are relied upon every day across more than 150 countries. Working in true partnership with our clients, we listen, learn and adapt to individual needs, offering deep application expertise built upon our long history of innovation in instruments and services. Our solutions for analysis, measurement and monitoring help enable many of today’s environmental monitoring, modern laboratories and industrial processes, and provide our customers the trusted and high performing solutions they need to succeed.

Xylem Analytics is part of Xylem Inc., a global company focused on solving the world’s most challenging and fundamental water issues. As accurate analysis is crucial to the water industry, Xylem Analytics taps its diverse product brands for leadership in that field and beyond, providing the best laboratory and field monitoring instrumentation across a wide variety of industries.

Learn more at Xylem.com

About YSI

We work with industry and government professionals to provide monitoring and sampling solutions for process improvement and to protect our planet's natural resources.

YSI's environmental products provide high quality, high resolution data to better understand and manage our water resources. They are used for wastewater process control, climate change and drought studies, flood monitoring and warning, stormwater runoff monitoring, groundwater quantification and contamination, aquaculture production and source water safety. In addition to standard products, YSI's custom integrated systems help customers obtain critical data in most any application. Tell us what you need and let us design and deploy a total system, even if you simply just want the data.

Our environmental products provide infrequent maintenance cycles, user interchangeable sensors, and field-rugged enclosures all backed up by a passionate and knowledgeable technical support team.

YSI Life Science and laboratory products are considered the Gold Standard for QC applications. They are used for process control, research and industrial applications by food and beverage, environmental, biofuels, biotech and pharmaceutical customers.

When purchasing YSI, you can expect proven products and technologies that provide true value and low TCO (total cost of ownership). Whatever your instrumentation need, YSI is ready to provide a reliable solution. We know you are passionate about your work...we are equally passionate and enthusiastic about what we can offer to help you succeed.

From the GM

At YSI we are interested in partnering with our customers to deal with the impacts of global climate change. What we provide helps you make critical decisions — for wetlands restoration, near-coastal monitoring, water resource planning, aquaculture, and many applications in between.  We are dedicated to responsibly providing the reliable water resource instruments and environmental monitoring systems and data that you need to do this.

YSI also offers Life Sciences products including biochemical analyzers for bioprocess monitoring, food and beverage processing, and sports physiology. This line began with the YSI blood-gas analyzer in the 1950s and is presently the industry “gold standard” for glucose and lactate measurement.

Along with our products, we build relationships with our customers through our dedicated customer service, including technical applications and service support. Our employees have years of knowledge and know-how to share. You can find our trained employees in many locations around the world, ready to assist you quickly.

I welcome your feedback about our products, services, or any other aspect of YSI.


Ron Geis
General Manager
YSI Incorporated