SEKO Scheepselektrotechniek If it’s a complete shipboard electrical system you’re looking for, leave it to us! It’s what we’ve been doing since 1992 – starting out as Koster Elektrotechniek, and under the moniker SEKO Scheepselektrotechniek since 2007. We have our own panel building workshop, and our experience ranges all the way from seagoing tugs to electric tenders. Our specialist fields include luxury passenger ships and ferries.SEKO Scheepselektrotechniek bv is also the place to go to for repairs, upgrades, and maintenance.