It’s ESET North America for which I provided (until 31st December 2018) 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 was for other sites such as Virus Bulletin, Infosecurity Magazine, ITSecurity UK, and so on (including a number of sites I maintained myself). 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.