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Revolutionizing material characterization with viscosity
Providing the best viscometer solutions to industries for proper material characterization.
Timeline
RheoSense is a global high tech company based in the Bay Area of California. Our innovative viscometers feature patented Viscometer/Rheometer-on-a-Chip (VROC®) technology. Utilizing state-of-the-art MEMS and microfluidics breakthroughs that redefine the viscometry industry, our instruments offer the smallest sample volume per measurement coupled with exceptional ease-of-use and accuracy. We are the leader in biotechnology, pharmaceutical, and the emerging protein therapeutics industries. RheoSense instruments have been rigorously tested, approved, and adopted worldwide by Fortune Global 500 companies and leading research universities.
2001
Founded
RheoSense was founded in 2001 by Dr. Seonggi Baek. Since the beginning, our patented VROC® technology is accredited in the scientific field as the innovative method of bringing ease when it comes to viscosity measurements
2009
m-VROC®
Production of flagship small sample m-VROC® and microVISC™ viscometers
2013
e-VROC®
Release of extensional viscometer capable of measuring apparent extensional viscosity
2016
Automatic Viscometer
RheoSense, Inc. introduces the first automatic viscometer equipped with automatic sample loading and cleaning. The viscometer can measure absolute viscosity as a function of shear or temperature, which allows unique viscosity fingerprinting of your samples.
2020
VROC® initium one plus
RheoSense, Inc. introduces the VROC initium one plus - the leading automatic viscometer that measures viscosity with the highest accuracy (2% of reading) and repeatability (0.5% of reading) and acts as a workhorse for your material characterization.
2020
Chip Cleaning Station
Release of the highly requested chip cleaning station, capable of cleaning VROC® chips in under 10 minutes!
Why measure viscosity?
It's never too late to measure accurate viscosity measurements but it's also never too early! Join hundreds of industry and academic professionals. Get a head start on your research and quality control processes with accurate measurements. Work smart, not hard!

All RheoSense viscometers require only small sample volume, control from low to very high shear rates, and measure true viscosity of Newtonian and non-Newtonian liquids.
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Our team of support & application engineers can assist with services such as calibration, sample testing, and viscometer maintenance.
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Download our application notes and technical details where we explain data, dive into in-depth rheological concepts, and more!
Go to pageWant to learn more about our products, services or applications? Contact us to talk to a specialist!
Success Stories
"I would like to mention (m-VROC®) is a great instrument and I am really enjoying using it"
How will we use the information about you?
Handled with the utmost confidentiality. Your data will be stored to send regular technical announcements including application notes, webinars, white papers. We do not sell data or will be providing it to third parties with the exception of our international distributors in the cases which the inquiry is interested in a formal quote or anything related to the international business respective of the international country.
Blog, News & Events
Stay up to date with our most recent applications, webinars, news and events shared on our blog.
The Service Journey
HTscreen Blog Post
Boston Office
Clients & Partners
RheoSense instruments have been rigorously tested, approved, and adopted worldwide by
Fortune Global 500 companies and leading research universities.









