I know companies like yours, and it's always a chicken/egg situation getting started
.
You can either try to do a sales job to find a reasonable customer project, or you need to develop special skills yourself.
Either way, you'll need a list of references of the work you've done, which is of course impossible when starting out.
Ask yourself: do we have have skills in this team that stand out, and can we develop them further?
eg, IoT, power, wireless, sensors, optics and so on. Think about areas where most "normal" customers don't have their own expertise, or the entry bar is too high to do it themselves.
And a Hot Tip: seek the distributor FAEs as your allies. Some people have badmouthed them here as "useless", but they're excellent networkers. And if you have special skills, thay're in a very good position to connect you to potential customers, which is a win-win-win situation for all.
Good luck.
PS: I've had excellent results working with Serbian engineering consultants.