We use cutting edge cross-disciplinary approaches
to solve pressing problems


Guardian addresses Big Data and Sensing Problems in Security, Energy & Health Care.

Client Stories

Guardian for Nuclear Decommissioning

One of our international clients is involved in the safe, timely and cost-effective decommissioning of nuclear reactors

We are configuring Guardian, in conjunction with our patented digital sensing technology (called “Mercury”) to generate accurate 3D maps of nuclear reactors

At scale roll-out underway

Guardian for Defense

Guardian for Defense

One of our defense clients is the US Air Force
Combining authentic Air Force data on Manpower, Money and Materiel (Assets) with Guardian’s global context data, we have configured Guardian to assist in the US Air Force’s strategic and budget planning processes
At scale roll-out underway

Guardian for Intelligence

One of our clients is a member of the Intelligence Community

Using open source, historic and real-time data from satellites, sensors, social and stores, we configured Guardian to accurately predict regional instabilities globally

At scale roll-out underway

Guardian for Health

Guardian for Health

One of our Healthcare clients is a predictive analytics company that offers analytics and insights to health insurance companies
Using the client's siloed data, we configured Guardian to predict adverse outcomes
Guardian predicts adverse outcomes for members with high accuracy and augments the client’s decision processes


Anshu Roy
Founder & CEO

Anshu Roy, PhD, founded Rhombus In 2011. Before starting Rhombus, he teamed up with Nobel Laureate Prof. Alan Heeger to set a world record in solar cell efficiency. He earned his PhD from the University of Michigan (Ann Arbor) at the intersection of Materials, Complex Systems, High Performance Computing and Turbulence. He invented Mercury™ – Rhombus' patented platform for solid state subatomic particle detection. He is the architect of Guardian.

Alan Heeger

Alan Heeger is widely known for co-founding the field of semiconducting and metallic polymers. In 2000, he was awarded the Nobel Prize in Chemistry. He is a member of the National Academy of Science (USA), the National Academy of Engineering (USA), the Korean Academy of Science and the Chinese Academy of Science. He founded UNIAX Corporation in 1990 and is co-founder of CBrite Inc., Cynvenio and Cytomx Therapeutics.

Arno Penzias

Arno Penzias co-discovered the cosmic background radiation that is probably a remnant of the Big Bang when the universe was created. For this discovery, Arno was awarded the Nobel Prize in Physics in 1978. Later, Arno headed Bell Lab’s research organization. He is member of both the National Academy of Sciences and the National Academy of Engineering.

Sam Araki

Sam Araki is a Draper Prize Winner and NRO Pioneer who dedicated his career to the National Security Space arena. He played a key role in CORONA, ARPANET and DIALOG. He was Vice President and Program Manager of the MILSTAR Program, the first global secure digital communication satellite system. Mr. Araki also led Lockheed’s efforts in the Iridium Program, ERIS and THAAD programs, Sensor-to-Shooter concept and the Hubble Space Telescope program. He was the first President of Lockheed Martin Missiles & Space.

Ashu Roy
Investor & Board Member

Ashu Roy is co-Founder and CEO of eGain - the leading provider of cloud customer engagement solutions that include a suite of Artificial Intelligence based products.

Jeffrey Merrifield

Jeff Merrifield is a Partner with Pillsbury Winthrop Shaw Pittman LLP in Washington, DC. His practice focuses on advanced nuclear reactors, physical security at operating nuclear reactors and counseling to executives and boards of directors. He is a former Commissioner of the U.S. Nuclear Regulatory Commission (1998-2007), appointed by President Clinton and reappointed by President Bush. Mr. Merrifield was asked to testify on the development of Advanced Reactors before the U.S. Senate and U.S. House in the spring of 2016.

Deborah C. Gordon

Deborah C. Gordon is the Executive Director of the Preventive Defense Project at Stanford University, directed by former Secretary of Defense, William J. Perry. She currently serves Mayor Pro-tem on the Woodside Town Council and as Director, City/County Association of Governments of San Mateo County. Deborah has over 30 years of experience in algorithm design, signal processing, network design, and network security and holds several U.S. and Canadian patents for her work in medical instrumentation. She was founder and president of InforMD, Inc.

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