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World's leading experts in Fluid Sensing

Rheonics brings together a team of experts from the leading universities and global companies to build cutting edge fluid process monitoring instruments. Rheonics is advised by an advisory board made of leaders from the industrial automation & process industry.


Rheonics’ products are already used in a broad range of markets from food processing to downhole oil & gas exploration and production by core brand customers like Shell, BASF, Baker Hughes, Nestle, Sulzer and Buhler. We are growing our markets through a combination of innovative technology, robust products and focus on ease of use. We believe the fluid sensing market for density and viscosity is on the cusp of revolution through the introduction of stable, reliable, robust, plug-and-play instruments.

Rheonics solutions are backed by more than 30 years of research from ETH Zurich, one of world’s top 10 universities. With more than 200 years collective experience, it brings together seasoned experts in the fields of mechanics, electronics, and fluid dynamics whose mission is to build customer-driven application-specific fluid sensing solutions. The founders of the company are Dr. Sunil Kumar, CEO; Professor Jürg Dual, Professor at the Institute of Mechanical Systems at ETH; Professor emeritus Mahir Sayir, ex-head of IMES at ETH; Dr. Joe Goodbread, Chief Technology Officer and inventor of numerous innovative fluid sensing systems, Dr. Klaus Haeusler, who has developed a wide range of novel fluid solutions for medical, food and polymer applications. We produce robust and reliable solutions based on a foundation of time- and field tested technologies, backed by a broad & expanding portfolio of intellectual property.

Prior to the founding of the company, the core group has been active in sensor research and design at ETH Zurich since the early 1980’s, when Joe Goodbread with Juerg Dual and Mahir Sayir designed and patented their first vibrational viscometer. The group subsequently invented and patented their “Gated phase-locked loop” technology and developed an inline process viscometer which is marketed as one of the most commercially successful process viscometer finding wide acceptance for process monitoring and control in food, chemicals, coatings, & printing.
The Rheonics Advantage
Rheonics is rapidly providing application-specific fluid sensing solutions for a wide variety of measurement challenges in the most demanding and aggressive environments. Clients can select from standard solutions based on our established technologies, or partner to develop bespoke solutions. We also have expertise in high temperature electronics enabling co-location of the electronics and sensing element in the same environment. We have built electronics for downhole application that operates to 150 °C (300 °F) and are developing electronics operating at 225 °C (440 °F).
Strategic Alliances
Rheonics count some of the largest oil & gas, food, and petrochemical companies as customers to whom they provide fluid sensing solutions based on patented viscosity and density measurement platforms. Rheonics maintain close ties with the ETH Zurich and ZHAW, where they collaborate with a team of experts in the fields of electronics, mechanics, computational fluid dynamics, and fluid-structure interactions. Production and assembly of Rheonics products is carried out by strategic partners, all based in Switzerland with ISO 9001 certification. We are growing our market base globally through collaboration with market leaders in multiple industries and appointing key solution partners in those regions.
Our Story


Conceptual framework at ETH Zurich


First viscometer patented


Gated PLL technology patented


Process Viscometer developed


Developed HPHT D-V sensor


rheonics incorporated


HPHT Viscosity and Density Sensor for Oil and Gas (DVM)


Inline process Density & Viscosity Sensor (DVP)


Inline process Viscometer (SRV)


Inline process Density and Viscosity Meter (SRD)


RHDV for downhole standalone integration with 150°C electronics


Rheonics Process Monitoring Solution introduced


Rheonics InkSight Printing ColorLock solution introduced

Big Business Expertise, Startup Mindset

We’re building a business that is good for profits and good for the planet, one that help companies save time, energy, and money.

rheonics is poised for the future.

Building the future of density and viscosity sensing

We produce robust and reliable solutions based on a foundation of time- and field tested technologies, backed by a broad & expanding portfolio of intellectual property. Our current palette of products includes a series of process density & viscosity instruments.

Our Vision

Fluid intelligence leads to better utilization of resources

We envision a world of material transformation that uses materials and energy in the most efficient way to deliver sustainable processes.


Our Mission

To build the team’s extensive technical expertise in fluid sensing into commercial products that our customers can use to control and optimize their processes: increasing efficiency, margins and sustainability.

Measure. Control. Optimize. Monetize.

Meet the Team

See Our R&D Facilities and Testing Lab.

Building trust for long-term partnership starts with a simple meeting.
Come meet our team and take a tour of our R&D facilities.

Schedule a visit
USA and Switzerland

Portland, Houston and Winterthur

We have offices in Portland, Oregon and Winterthur, Switzerland. In 2015, we added a local office in Houston, Texas.

Our Locations