It's always good to know what's pushing people forward.

Spiden:  light + ai + biomarkers

Impressive startup in Switzerland which uses among others Raman spectroscopy to analyze blood samples
Actually, spoke to them and they are quite impressed by my prism technology and see potential in their area.

Spectral Industries: Laser-induced Breakdown Spectroscopy

Dutch Startup which uses laser-induced breakdown spectroscopy (LIBS) to analyze elements.

The laser is focused to form a plasma, which atomizes and excites samples. This light is then analyzed using a spectrometer.

Atlant3D:  Atomic Layer Deposition with a sort of extruder setup.

They can now deposit 400 micrometer tracks, nanomemeters thick.  They are working on decreasing nozzle size to 30 microns.
I spoke to them on FormNext. Their greatest competitor is laser induced forward transfer (LIFT).
Atlant3D recenlty won the Hello Tomorrow Prize.
Still, I think LIFT with prisms would be much faster than their extrusion setup can ever be.