ONSEI is dedicated to building voice interfaces to make the world smarter. The Founders held several leadership positions in tech companies, lived around the world and hold degrees from Reading & Harvard.


Amazon Echo is “one of the best voice-controlled home products”


The world started talking. This year it is expected that more than 33m voice devices will be sold. The Mary Meeker Internet Report of 2016 states that voice should become the efficient form of computing input. Amazon Echo & Google Home are simply the start of a much bigger future, where consumers will enjoy a more natural way of interacting with machines - conversational voice. 

We at ONSEI specialize in building voice interfaces to empower your business. We help companies around the world to access the world of voice.

Working with ONSEI has been a pleasure. We were always in the loop regarding the project due to their great communication. ONSEI worked very pro-active, self-organized and contributed many valuable ideas for the development of the skill. We will continue our partnership.
— Niklas Jansen, Co-Founder @ Blinkist
Our partnership with ONSEI has always been great and fun. They helped us figure out what we and our users wanted and delivered a great product. ONSEI has always been on top of things and contributed many great ideas. We are going to continue the cooperation.
— Jekaterina Cechini, Head of Digitalisation @ BVG