Buildings with reinforced concrete, steel structures and large objects wraps the geomagnetic field in a spatially-varying way which can be used for navigation. Our approach consisted in developing a relative positioning technology based on standalone magnetic tags which compute location by sensing magnetic field lines within a facility. The tags worked just like inertial measurement units. Therefore, our technology circumvents magnetic field variations which jeopardize current solutions based on fingerprinting. Our technology offers significant advantages: no infrastructure network to be deployed on site, no initial fingerprinting, no need for extensive computing power, high accuracy. Moreover, our business model is based on a pay-for-outcomes approach which will facilitate market adoption. In the longer run, we will broaden the approach by delivering our technology to other sectors (e.g. logistics sector, manufacturing industry, etc.) so as to deliver customized value.