A problem with finding farmhouse ales to present at tastings and so on is that very few are made commercially. Here is a list of what little there actually is. At the moment I'm only including Norwegian beers.

True farmhouse ale

• Morten Granås, Hegra, Stjørdal. He has no distribution, so you really have to pick it up at his place.

Fairly authentic farmhouse ales

These beers are made in commercial facilities, and some compromises have been made on process and the level of carbonation and so on, but they are still reasonable approximations of the real thing.

• Klostergården Såinn (stjørdalsøl with Voss kveik)
• Voss Bryggeri Vossaøl (various incarnations, all vossaøl)
• Aass Pilotbryggeri Vossaøl (not sure if still available)

Craft beer with farmhouse elements

These beers are brewed like craft beer, but they have at least one real farmhouse element about them, like farmhouse yeast or farmhouse malts or the process.

• Bygland Bryggeri Sveikadden (smoky, junipery with Voss kveik)
• Voss Bryggeri: several beers with kveik. Kveika Rugøl is a favourite.
• Klostergården Alstadberger: excellent beer with stjørdal malts.
• Nøgne Ø: several beers with kveik. Raw is an excellent raw ale with lovely smoke character. Norsk Høst is a very good beer dominated by Myrica gale. Tradisjon is also good, with kveik and Myrica.
• Stjørdalsbryggeriet Okkelberger: good beer with stjørdal malts.
• Kinn Kveik: kind of saison with kveik from Sykkylven.
• Lervig/Arizona Lawless: kind of saison with kveik.
• Ego Draumr: raw ale with a possible kveik.
• Ego & Eik og Tid Ny Hornindal Pale Ale: pale ale that's also raw and with kveik
• Eik og Tid: all of their beers are raw ales with juniper infusion and kveik. However, they are sour and carbonated, and have other deviations, too.

A larger list of beers with kveik.

Craft beer inspired by farmhouse ale

These beers are craft beers that were made to approximate what the brewers imagined farmhouse ale could perhaps be like. Many of them are good beers, but they're not very close to the originals.

• Haandbryggeriet Hesjeøl.
• Haandbryggeriet Norwegian Wood.
• Little Creatures Stryn Farmhouse Ale.