It’s ESET North America for which I provide formal consultancy, but most of my writing for ESET can be found on the WeLiveSecurity site. My blog articles are here, and my conference papers and white papers, like those of other ESET researchers, can be found here.
However, much of my writing on ESET’s behalf has been for other sites such as Virus Bulletin, Infosecurity Magazine, ITSecurity UK, and so on. There’s much more information on this at The Geek Peninsula. Of course, there’s also lots of writing I do or have done that wasn’t for ESET.