I would like to point out that most of the French editors you quoted don't released english subtitles. Carlotta is well known for that, as Wild Side and, given to the old age of their release, René Chateau.
I don't think, except MK2, that a lot of 'arty / oldy' movies editor have english subtitles on their release (I'm French, so I have the release on my shelves ^^). Wild Side doesn't do it, as Carlotta and Bodega (the Bollywood branch of Carlotta), Neo Publishing (they have some Lucio Fulci, Mario Bava, some Gialli too), HK Video (a lot of Tsui Hark movies, along with John Woo, Chinese Ghost Stories and other stuff), Potemkine (a very good edition of Walkabout, the DC of The President's Last Bang, a new edition of the russian war film 'Come and see'). Not sure about Bach Films, though.
But among these editors, Carlotta is an excellent one. I think they are now even better than MK2 and are now the 'French Criterion'. They have the French Ozu editions, Mizoguchi, some Wilder like Love In The Afternoon, The Human Condition, and so on. They have released a few weeks ago Antonioni's 'Chung Kuo', and Pasolini's African Orestia and Salo in new versions (with each time a booklet made from reprints of press kit and/or newspapers articles) and they will release 3 Bava's movies on June 22nd (I Vampiri, I coltelli del vendicatore, and Reazione a catena).
HK Video used to do an excellent work too, but now, they don't release a lot of movies anymore and, except A/V quality (not even all the time on the past few releases), they don't do such a good work anymore (they delayed for more than a year the release of A Better Tomorrow trilogy, and they fucked up the release). But they have very good releases of Baby Cart, Hard Boiled, old Tsui Hark movies (they have the only DVD edition in the world of the uncut Don't Play With Fire).
Wild Side does a good job too, but they've chosen to release very limited movies this year (Japanese softcore erotic movies...) but they used to do a great job too (Jodorowsky, Fukasaku, Naruse, Kurosawa, along with Fritz Lang movies, they have the Welles' Macbeth).
Here are 2 'search'
pages of their website.
The 'Introuvables' (which can be translated litterally by 'unfoundable' or, here, by Out of print) collection is focused on old gems. It's kind like the Criterion mission (except that we have in here a lot of movies that no one really cares about). They also release new movies, like [REC], The Orphenage, or Pan's Labyrinth (the first THX HD DVD in the world was french ^^) or Martyrs and Southland Tales.
Hope that will help some French-speaking people here.