Marcus Mumford

In this video source, you can see Marcus Mumford with a Martin D-28. He was also mentioned on the Martin Guitar Ambassador page. The July edition of Guitar Buyer has an article on Marcus' guitars and setup and includes two Martin D-28s are called "Mary-Kate" and "Ashley".

Marcus Mumford frequently uses the Martin OM-21 acoustic guitar during live performances and in various videos, including "Little Lion Man" and "White Blank Page (Bookshop Session)." In a live performance of "Reminder" on 89.3 The Current, he prominently features this guitar, highlighting its significance in his musical repertoire.

In this concert at the Reading Music Festival, Marcus Mumford uses the Fishman Neo-D Humbucking Acoustic Pickup. As one can see, the device is drilled over his sound hole (the black bar going across it). This picks up the acoustic sound and makes it sound much better and clearer.

His choice for guitar amp used to be a Fender Hot Rod DeVille (especifically, the Hot Rod DeVille 410)

Listed as the amplifier used by Mumford on http://www.dolphinmusic.co.uk/article/5233-mumford-and-sons-gear-guide.html

Marcus was on the hunt for a new (to him) Fender Telecaster, something with some Springsteen vibe. After picking and playing several iconic teles, he stumbled across this really unique piece that just found its way to Chicago Music Exchange two days prior. It’s a 1967 Fender Telecaster in a blonde finish. What really sets this guitar apart from the others is the modified pickup in the neck. The original pickup was replaced with a vintage Gibson Patent Number pickup that really gives this guitar a screaming rock n’ roll sound. Source: https://www.chicagomusicexchange.com/blogs/soundboard/11878125-mumford-sons-talk-vintage-guitars-at-chicago-music-exchange

Marcus uses this guitar a lot on Wilder Mind and it joined him for all of the Wilder Mind tour.

In this video, Marcus can be seen playing a Collings D3 dreadnought at the One Love Manchester concert. The Collings D3 dreadnought has a similar design to the Martin D28, and Marcus began using it back in 2011 interchangeably with his Martin D28 (Likely multiple D28s). At the 2011 Grammy awards, Marcus played his Collings D3 during Mumford & Sons' live performance of The Cave.

At 0:09 in this video, Marcus Mumford holds a Fender Jazzmaster.

In this video, at 0:11, one can see Marcus Mumford playing a Fender Telecaster on the left side.

Marcus Mumford shared a photo on Instagram featuring his pedalboard, which includes the Strymon blueSky Reverberator among other pedals.

In the live performance of "The Wolf" on SNL, Marcus Mumford uses a 1965 Fender Super Reverb amplifier, as seen in the video on MumfordAndSonsVEVO's YouTube channel.

He uses this electric guitar for live performances of "Bellow my Feet". In the video of their Letterman performance he can be seen using one,

In this user-uploaded photo, Marcus Mumford is seen playing guitar using a G7th Performance Capo.

As far back as 2011 Marcus could occasionally be seen playing a Gibson ES-335 Semi-Acoustic guitar, as at the Bonnaroo music festival:

This amplifier is used during Mumford's smaller performances according to http://www.dolphinmusic.co.uk/article/5233-mumford-and-sons-gear-guide.html

Marcus is seen playing a set of Ludwig Black Oyster Pearls in this picture.

He plays often this guitar, even if it's not his main guitar, you can see he plays with this guitar in many live songs.

According to Collings artists page Mumford plays a C10 in Sunburst. In the picture he can be seen with one on stage.

In the video you can see Marcus playing a Gibson 1968 J-50 with The New Basement Tapes.

When Chris Pollard the FOH Engineer of Mumford And Sons Interviewed by SSL Mixer, he explains that Marcus using Shure SM57 and KSM313 for miking the amps.

He uses either a Beta or Sm58 for live performances

On the pedal board there's the GigRig G2.

At the reading festival 2015, Marcus used a triad-orbit advanced mic stand. Enable him to easily switch between his instrument setup without changing it. When playing electric guitar, he does not use the kickdrum. However while playing the acoustic, he does.

The connection between the mic and the stand itself is a Triad-Orbit "micro 2" adapter.

He uses either a Beta58 or SM58 E.g. 40:50

When Chris Pollard the FOH Engineer of Mumford And Sons Interviewed by SSL Mixer, he explains that Marcus using Shure SM57 and KSM313 for miking the amps.

In this video at 55 seconds you get a close up shot of Marcus Mumford using the UHF-R wireless mic with the Shure SM58 Capsule.

At 51 seconds into the video Marcus Mumfords guitar tech shows the strings used and they are the Elixir 13-56

Seen using his Gibson LG-0 in this live video

In an Instagram video posted by Marcus Mumford, the Shure SM7B can be seen standing in the background, confirming its use.