What Arduino boards would be compatible?
As one can see from the pinout description page (https://learn.adafruit.com/adafruit-lsm9ds1-accelerometer-plus-gyro-plus-magnetometer-9-dof-breakout/pinouts): 



So this board is literally designed to be powered by 3.3V and 5V and have compatible logic levels for both these voltage ranges, which is what every Arduino known to me and the Raspberry Pi use. 

Furthermore, there is also Arduino Code (https://github.com/adafruit/Adafruit_LSM9DS1)  which is compatible with pretty much every Arduino Core and Raspberry Pi Python code (https://learn.adafruit.com/adafruit-lsm9ds1-accelerometer-plus-gyro-plus-magnetometer-9-dof-breakout/python-circuitpython). 

So by means of voltage levels and platforms, this board is highly compatible with everything out there that is either 3.3V or 5V powered and has a SPI or I2C peripheral.