There are a few companies out there, such as Feng, Hook Soft, and Circus, who specialize primarily in the 'pure moe' genre. They might tack on a real story to some of their VNs (Tsuki ni Yorisou Otome no Sahou), but at the core is a direct appeal to the moe-addicts that make up about seventy percent of all otakus. There is absolutely nothing wrong with moe-appeals. Almost all Japanese VN-makers have moe appeals, even ones like Light that primarily do chuunige. I don't even think that pure moege are a bad thing... though they can be wearying at times.

Hook Soft is probably the most obvious example of a pure moege company that doesn't stray into nukige territory out there. Strawberry Nauts, which is one of their more famous VNs, is probably the most sugar-sweet moege/charage I've ever played, without anything resembling darkness or bitterness to it... not even a hint of it. This is actually typical of this company's games, from what I have played. Another aspect that is typical of this company is heroine-overdosing. Almost all of their VNs have more than the standard five heroines (Strawberry Nauts had ten, if I recall correctly), and the common route is generally the strongest part of their VNs.

If I had to pick a company that is the model case for 'modern' moege, it would be Hook Soft (though it is an older company, having been formed just after the turn of the century). If you play one of the VNs they made in the last seven years, you will inevitably see echoes of familiar charage in them, with all hint of hard drama extracted painstakingly to render all potential sharp edges round.

While there are many companies that use the basic idea of Hook Soft's VNs in their own ways, I don't think any other is either as prolific or as obvious about it as this company, lol.