Suite 107
2700 Richards Road
Bellevue, WA 98005
United States
Nationality
Denmark
Email(s)
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Telephone
+12064894220
ORCID :
0000-0001-6495-272X
Ph.D.
Institutional Management
Biological Oceanography, Marine Ecology
Deepsea
Emergency Management
Fisheries, Aquaculture
Limnology
Marine Biotechnology, Marine Products
Marine Geology, Geophysics
Pollution
Since 1995, Sequoia Scientific, Inc. has been a global leader in instrumentation for in situ measurements of suspended particles and water optical properties, serving the ocean science community and related fields.
Sequoia introduced the first LISST (Laser In Situ Scattering and Transmissometry) instrument in 1995, establishing a new standard for measuring particle size distributions and concentration directly in natural waters. Since then, our technologies have become widely adopted across oceanography, limnology, and sediment research, with thousands of instruments deployed worldwide to study coastal, open ocean, and freshwater systems.
Our instruments are used to quantify particles and their role in critical ocean processes, including sediment transport, carbon cycling, primary productivity, and light propagation. These measurements underpin both fundamental research and applied environmental monitoring and increasingly serve as in situ reference data for optical oceanography and satellite remote sensing.
Building on this foundation, Sequoia expanded into advanced optical measurements since 2016, including hyperspectral backscatter and absorption and high-resolution scattering instruments. These capabilities extend our ability to characterize aquatic particles not only by size and concentration, but also by their hyperspectral optical properties—enabling new insights into particle composition and ecosystem dynamics.
Today, Sequoia instruments integrate multiple complementary measurement approaches, including laser diffraction, holography, and hyperspectral optics. Together, these systems measure particle size, concentration, morphology, and key optical properties such as beam attenuation, volume scattering function (VSF), and hyperspectral backscatter and absorption, with hyperspectral beam attenuation to come.
While our primary focus remains ocean and freshwater science, Sequoia instruments are also used in select industrial applications, first and foremost oil & gas drilling operations but also dredging, hydropower, and process monitoring, where robust particle measurement is critical.
All design, engineering, and manufacturing take place at our headquarters in Bellevue, Washington, USA. From there, we support a global customer base, with most of our instruments sold internationally.
If your work depends on understanding particles and optical properties in natural waters, Sequoia provides the instruments to support it.
Core Scientific & Technical Expertise
- Suspended Particle Measurement in situ
- Optical Oceanography
- Aquatic Optics Instrumentation
Instrumentation & Measurement Systems
- In Situ Optical Sensor Design
- Calibration & Validation of Optical Sensors
- Data Quality & Measurement Uncertainty Analysis
Product & Technology Leadership
- Scientific Instrument Product Strategy
- Technology Commercialisation
Ocean Science & Application Areas
- Coastal and Estuarine Dynamics
- Freshwater Systems
- Environmental Monitoring Systems
- Sediment Transport & Resuspension
- Phytoplankton & Particle Characterisation
- Dredging and Hydropower Monitoring
- Industrial Particle Measurement Applications
Business & Industry Expertise
- Ocean Science Instrumentation Industry
- Global Distribution & Sales Channels
- International Scientific Markets
- Small Business Leadership
Leadership & Operations
- CEO / Executive Leadership
- Strategic Planning & Execution
- Global Customer Engagement
Partnerships & External Engagement
- Research Collaboration (Universities & Institutes)
- Government Programs (e.g., SBIR (sequoiasci.com/projects/))
- Conference organization (e.g., PiE (sequoiasci.com/about/pie/), TIDES)
Danish
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