Parkwalk has returned to back three-dimensional imaging developer Fuel3D as the Oxford spinout continues work on a scanner than can accurately detail sub-cutaneous tumours.

The carmaker has acquired a 10% stake in electric vehicle developer Rimac Automobili, adding to a $35m investment by Camel Group in September.

Codelucida, Regulonix and Post.Bid.Ship have all been backed by UAVenture Capital.

Stealth has secured $100m in convertible note financing across two rounds, one of which was led by Nan Fung Technology's Pivotal Beta.

Elph, co-founded by UC Berkeley graduates, has raised $875,000 in a round backed by the House Fund.

North Carolina State University semiconductor material spinout HexaTech will seek $3.5m from its latest round to bring its overall funding to roughly $12m.