
About Rain Neuromorphics
Brain-inspired NPU for energy-efficient AI; raised $3M bridge in May 2025, total funding ~$146M.
Rain Neuromorphics was founded in 2017 and is based in Redwood City, CA, United States. It is listed under Neuromorphic Computing, Analog Computing. Reported funding is $3M bridge (May 2025); ~$146M total raised.
Compute Technologies
- Neuromorphic
- Analog Computing
What Rain Neuromorphics works on
Neuromorphic Computing
Neuromorphic computing builds chips that copy some features of the brain. Instead of a central processor and separate memory, a neuromorphic chip has many small units that act like neurons, each with its own local memory, joined by connections that act like synapses.
Analog Computing
Analog computing represents numbers as continuous physical quantities, such as voltage or current, rather than as strings of 0s and 1s. The physics of the circuit does the calculation. For example, Ohm's law and Kirchhoff's current law let a grid of resistors multiply and add numbers at once.


