A few years ago i was part of setting up Proto venture tech, a studio focussed on those first couple of steps a startup takes. Proto offers support in (digital) product design, architecture, development, branding and more.
Clients range from online payment systems, health tracking, e-commerce, and various campaigns for net neutrality.
Notable client is Pictly, a one-stop print and frame shop. I redesigned their branding and we built their mobile- and web applications from the ground up.
You should also check out Pastime, a web- and native app that we initially designed as an audiobook player for the visually impaired, but these days serving more as a podcast discovery platform.