
AMS were a manufacturer of professional studio equipment. The company later merged with Neve Electronics to form AMS Neve.

Ashdown Engineering is a British manufacturer of instrument amplifiers, particularly for bass and acoustic guitars.

Blackstar Amplification is a British company which produces and manufacturers guitar amplifiers and effects units. The company was founded by a group of ex-Marshall employees, most notably Bruce Keir, the current technical Director at Blackstar and former Chief Design Engineer at Marshall, Ian Robinson. In 2009 the company began operations in the United States. The majority of the research and development for Blackstar is carried out in the UK. Blackstar is endorsed by major artists like Ozzy Osbourne, Kurt Viehdorfer, Neal Schon, Opeth, Richie Sambora of Bon Jovi. Blackstar has been consistently ranked amongst the best amplification brands by leading guitarists.

Bush is a British consumer electronics brand owned by J Sainsbury plc (Sainsbury's), the parent company of the retailer Argos. The former Bush company is one of the most famous manufacturers of early British radios. The company is now defunct, but the Bush brand name survives as a private label brand for budget electronics. Bush has a sister brand, Alba, which has a similar history. Today, all Bush and Alba products are sold exclusively at Argos and Sainsbury's, with Argos having a wider selection.

The Columbia Graphophone Company Limited was one of the earliest gramophone companies in the United Kingdom.

E.M.G. Hand-Made Gramophones Limited was founded in 1923 by Ellis Michael Ginn. Its object was to build and sell high class acoustical gramophones. E.M.G.'s first model was the Magnaphone, demonstrated and sold in Brighton in March 1924.

Focusrite plc is an English music and audio products group based in High Wycombe, England. The Focusrite Group trades under six brands: Focusrite, Focusrite Pro, Martin Audio, ADAM Audio, Novation, and Ampify Music. Focusrite designs and markets audio interfaces, microphone preamps, consoles, analogue EQs and Channel strips, and digital audio processing hardware and software for professional and home studios. Many, but not all, Focusrite products are manufactured in China.

Funktion-One is a British loudspeaker manufacturer based in Dorking, Surrey, England. The company was formed in 1992 by Tony Andrews and John Newsham. It is known as an "industry standard" designer and manufacturer of high quality loudspeaker systems for venues like dance clubs or festivals.

The Garrard Engineering and Manufacturing Company of Swindon, Wiltshire, was a British company that was famous for producing high-quality gramophone turntables. It was formed by the jewellers Garrard & Co in 1915. The company was sold to Plessey, an electronics conglomerate, in 1960. During the period 1976-1978, Garrard developed demonstrators of the novel video disc technology. Although the team recognised the future potential of this data storage technology, Plessey chose not to invest. After several years in decline, Garrard was sold by Plessey to Gradiente Electronics of Brazil in 1979 and series production was moved to Brazil (Manaus). The remaining Garrard research and development operation in Swindon was reduced to a skeleton operation until completely shut down in 1992. Then, Gradiente licensed the Garrard name to Terence O'Sullivan, who operated as Loricraft Audio, in 1997.

HH Electronics is a British amplifier manufacturer, that was founded in 1968 by Mike Harrison, Malcolm Green and Graham Lowes in Harston near Cambridge, England, where its first solid state TPA and MA range of studio quality amplifiers were designed and manufactured. These amplifiers were used by many recording and broadcasting studios, including the BBC.

Hiwatt is a British company that manufactures amplifiers for electric guitars and electric basses. Starting in the late 1960s, together with Marshall and Vox, Hiwatt contributed to the sonic image popularly termed "British sound".

Laney Amplification is a British designer and manufacturer of guitar amplifiers, bass guitar amplifiers, cabinets, and public address systems. Laney Amplification does not sell directly to the public, instead dealing with distributors and retailers.

Marshall Amplification is a British company that designs and manufactures music amplifiers, speaker cabinets, brands personal headphones and earphones, and, having acquired Natal Drums, drums and bongos. It was founded by drum shop owner and drummer Jim Marshall, and is now based in Bletchley, Milton Keynes, Buckinghamshire.

Quad Electroacoustics is a British manufacturer of hi-fi equipment, based in Huntingdon, England.

Rega Research Ltd. is a British audio equipment manufacturer. Rega was founded in 1973. The company's name was formed of the initials of its two founders. Rega are widely known for their turntables – most notably the iconic Rega Planar 3, cartridges and tonearms, and has produced award-winning amplification and speakers for over 20 years. In addition to manufacturing products under their own brand name, they have also served as an original equipment manufacturer of turntables and tonearms for other companies such as NAD and Rotel.

ROXi, is a television based music entertainment experience providing full catalogue music streaming, radio, karaoke, music games, sound machine and photo visuals via a TV user interface on pay TV and Smart TV platforms and via ROXi Music System; a dedicated digital media player.

SME is a brand name of an English company that produces high end tonearms and turntables, whose name has become synonymous with the industry standard detachable headshell mount.

Solid State Logic (SSL) is a manufacturer of high-end mixing consoles and recording studio hardware which is headquartered in Begbroke, Oxfordshire, England.

Tannoy Ltd is a British manufacturer of loudspeakers and public-address (PA) systems. The company was founded by Guy Fountain in London, England as Tulsemere Manufacturing Company in 1926 and moved to Coatbridge, Scotland in the 1970s. In 2015 Tannoy was acquired by Music Group (company) along with TC Group which itself had acquired Tannoy in 2002. Later on it was suggested that the Coatbridge facility would be closed and all related activities would be relocated to Manchester, England. However, this was later corrected and in 2016 it was confirmed that Tannoy loudspeaker manufacturing would continue in Scotland, with a brand new manufacturing facility planned.

Trace Elliot is a United Kingdom-based bass amplification manufacturer, and has a sub-brand, Trace Acoustic, for acoustic instruments.

Watkins Electric Music (WEM) is a British company known for manufacturing musical instruments, guitar, bass and PA amplification and the CopiCat tape echo machine.