ElFys, Inc.

ElFys, Inc. is a Finnish deep-tech company that specializes in high-sensitivity photodetectors.

Founded in August 2017 as a spin-off from Aalto University, ElFys utilizes proprietary Black Silicon Induced Junction technology to design and manufacture next-generation photodetectors. The company has achieved near 100% external quantum efficiency across ultraviolet, visible, and near-infrared spectrums. ElFys offers both standard and customized photodetector solutions, including 4-quadrant detectors, surface mount modules, and individual photodiodes. Their technology is applied in various sectors such as medical wearables, analytical instrumentation, security imaging, autonomous systems, and space and defense. The company has a global presence and serves customers in multiple languages, focusing on mission-critical applications. ElFys is recognized for its innovative approach and has received funding to support its advancements in photodetector technology.