The fleet automation spinout from Swiss Federal Institute of Technology in Lausanne has attracted a $2m extension for its seed round.

The LED technology developer, based on research conducted at Yale University, has raised $5m from investors led by Leyard.

Ultrasound tumour treatment developer HistoSonics has been backed by Michigan’s Mints initiative and student-run Wolverine Venture Fund.

Cambridge Innovation Capital has backed the series B round, alongside other investors that included Parkwalk Advisors.

George Mason University spinout Ceres Nanosciences has closed a first tranche of its $9m series A round.

Cellestia Biotech, an oncology drug spinout of EPFL, has closed its seed funding at $8m after securing a third tranche backed by PPF Group, the owner of biotech company Sotio.

Comcast Ventures, a participant in the smart mattress developer's $6m seed round last year, has come back for its $5m series A round.

Osage University Partners was among the participants in a round led by Ignition Partners that will help KenSci further develop its machine learning technology.