Movesense
Movesense started off as an internal concept project within Suunto back in 2015 and released their first beta versions of their Movesense sensors (IMU + HR sensor) to developers sometime in 2017. Developers who signed up for the beta program had access to the hardware (Movesense sensor), the sensor code, as well as the software libraries for developing mobile applications (iOS and Android). Since then, they have started an Academic Program where they support scientists and researchers who are making use of IMUs in their studies. One important criteria is: there has to be potential for commercial applications. Besides that, lots of different sports and health startups have relied on Movesense for their wearable product development.