Acorn Instruments is a division of Nektar Technology, Inc, based in California. Behind Acorn Instruments is a group of people who have designed and developed products over the past 20+ years. Acorn Instruments was established in 2010. Acorn takes great care in resolving any issues that customers have and use this feedback to improve their process where possible. The Acorn factory employs over 1000 people in China with additional engineering taking place in the United States and United Kingdom. The global effort that goes in to delivering each product is a great example of how it’s possible to successfully cooperate across cultures and borders. Acorn manufactures the Masterkey series of MIDI controllers and comes in 25, 49 and 61 keys.