About us & Team

Discover our skills in geomatic applications...

The Company

Kuaternion srl is an innovative start-up of young engineers specialized in Geomatics and Positioning.
We are a professional group engaged in university research, PhD students and researchers.
Our intent is to encourage technology transfer from university to industry with the aim to enhance and to apply the scientific knowledge of our country in innovative projects and services.


Man is the measure of all things: of the things that are, that they are, of the things that are not, that they are not.

Protagoras in Teeteto (Plato)

Our Partners

Our Team

Andrea Nascetti CEO and Co-Founder

Andrea Nascetti is a Post-Doc researcher at the Geodesy and Geomatics Division of the University of Rome “La Sapienza”.

His main research activities are related to 3D information extraction from imagery no matter if acquired from mobile phones or satellite sensors. In 2012 he followed the postgraduate master RED (Research Enhancement and Development) through which he gained fundamental skills in management, entrepreneurship, intellectual property and business modeling.

Roberta Ravanelli CTO and Co-Founder

Roberta Ravanelli received her PhD in geomatics from University of Rome “La Sapienza” in 2017 and she is currently a post-doc researcher at the Geodesy and Geomatics Division of Sapienza University of Rome.




Her research activities include close-range 3D modelling, image and point cloud processing, Geo and Remote Sensing Big Data analysis.

Alberico Sonnessa Project Manager

Alberico Sonnessa is a PhD in Geophysics. He has been a PostDoc researcher at Geodesy and Geomatics Division at “La Sapienza” University of Rome.

His main research is focused the design and implementation of geomatic monitoring systems. His educational background is in environmental engineering.



Elisa Benedetti Co-Founder

Elisa Benedetti is a PhD in Infrastructures and Transports from the Faculty of Civil and Industrial Engineering, Geodesy and Geomatics Division at “La Sapienza” University of Rome.

Her main research topic is focused on real-time GNSS applications for structural and ground monitoring, in particular as regards the development of original strategies for an integrated use of GNSS sensors and MEMS accelerometers.

Mara Branzanti Co-Founder

Mara is a PhD in Infrastructures and Transports from the Faculty of Civil and Industrial Engineering, Geodesy and Geomatics Division at “La Sapienza” University of Rome. Her main research topic is focused on real-time GNSS data processing for Earth monitoring and navigation.






Gabriele Colosimo Co-Founder

Gabriele Colosimo works as GNSS Positioning Algorithms Engineer in Leica Geosystems AG, Switzerland. In 2012 he achieved a PhD in Infrastructures and Transports by the Geodesy and Geomatics Division of “La Sapienza” University of Rome. He focused his research on real-time displacements/velocities estimation and atmosphere analysis using GNSS observations. He now develops and maintains a range of precise GNSS positioning solutions including RTK, Network RTK and PPP. He has the technical lead research and development projects

Martina Di Rita Co-Founder

Martina Di Rita is a PhD student at Geodesy and Geomatics Division, Faculty of Civil and Industrial Engineering, University of Rome “La Sapienza”. Achieved a Master Degree Cum Laude in Environmental Engineering in 2011.

Her principal research activity is now devoted to 3D modeling using a hybrid approach based on photogrammetry and Computer Vision techniques.

Francesca Fratarcangeli Co-Founder

Francesca Fratarcangeli is a Post Doc researcher at the Faculty of Civil and Industrial Engineering, Geodesy and Geomatics Division at “La Sapienza” University of Rome.

Her main research topic is focused on the development and on the implementation of new algorithms, into the scientific software, for the 3D models generation with the optical and SAR high resolution satellite imagery.

Giorgio Savastano Co-Founder

Giorgio Savastano is a PhD candidate in Infrastructures and Transports from the Faculty of Civil and Industrial Engineering, Geodesy and Geomatics Division at “La Sapienza” University of Rome. His main research topic is focused on new possible applications of the GNSS variometric approach, such as the Ionospheric anomalies analysis, the calibration of atomic oscillators and the free Earth oscillations detection.

Augusto Mazzoni GNSS R&D & Co-Founder

Augusto Mazzoni is Associate professor of Geomatics at the Engineering Faculty of the University of Rome “La Sapienza”. He received a PhD, in 2009, with a thesis on GNSS Permanent Stations Networks for Positioning Service.

His main research topics focus on GNSS Seismology (developing and implementation of VADASE algorithm), GNSS data processing and real-time positioning and navigation.

Mattia Crespi Scientific Advisor & Co-Founder

Mattia Crespi is Full professor of Positioning and Geomatics at the Engineering Faculty of the University of Rome “La Sapienza” and member of the PhD Governing Board of the University of Rome “La Sapienza”.

His main interest are within several application of GNSS, SAR and optical satellite and close range image processing for 3D terrain and objects modeling.


© Kuaternion srl, Registered Office: Viale Castrense, 21 - 00182 Roma (RM), PI: 13118301004, CF: 13118301004

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