Got an invitation to place my company's info at www.die-it-fachleute.ch.

They want CHF 391.45 per year for a company entry. That's actually the first time I've seen this website, and there's no indication that they care of attracting visitor traffic in any way.

looks like a scam? The only purpose of this website seems to collect the payments, but not really to be a useful service.

well, actually by googling "HIM Swiss-Internet AG" it appears to be a scam indeed.

Scam, and there are many similar scams!