I guess you should look at https://www.polypico.com/
It is somehow unique because it uses one-time low cost plastic pipettes. That often is very advantageous over traditional glass pippetes (expensive, fragile, have to be washed).
Thank you for the answer. The expertise of Polypico seems to be in ultra-low volume dispensers, in the range of nano liters. For a miniprep, we need volumes in ul quantities. If you also come across such dispenser, please do let me know.