| name | games | status | region | founded | closed | activity | |
|---|
| Image Works |
125 | dead | UK | 1988 | 1992 | 1988/2000 | |
| Images |
19 | | UK | | | 1988/2014 | |
| Imagine |
169 | | UK | 1982 | 1989 | 1982/1989 | |
| Imagitec Design |
84 | bought | UK | 1989 | 1997 | 1987/1996 * | |
| Impressions |
135 | dead | UK | 1989 | 2004 | 1988/2004 * | |
| Impulze |
20 | | UK | | | 1990/1992 | A label from Zeppelin Games |
| Incentive Software |
85 | | UK | 1983 | | 1983/1992 | |
| Inkle Studios |
9 | active | UK | 2011 | | 2013/2021 | |
| Intelligent Games |
16 | dead | UK | 1988 | 2002 | 1990/2001 | Founder: Matthew Stibbe |
| Interactive Girls Club |
6 | dead | UK | 1993 | 1995 | 1993/1995 | Based in the UK. The operating name of Multi-Media Marketing (Canterbury) Limited … |
| Interceptor Micros |
79 | dead | UK | 1982 | 1990 | 1982/1990 | |
| Interscan Data Systems |
1 | nomoregames | UK | | | 1974/1974 | Interscan Data Systems, Ltd., a marketing organization of England, will market, … |
| Introversion Software |
17 | active | UK | 2002 | | 2001/2016 * | Founders: Chris Delay, Mark Morris, Thomas Arundel Website: http://www.introversion … |
| Jagex |
9 | active | UK | 2001 | | 2001/2021 | Jagex Ltd. HQ: Cambridge, UK Founders: Andrew Gower, Paul Gower, Constant Tedder … |
| James Software |
14 | | UK | | | 1984/1986 | |
| JoyBits |
17 | | UK | | | 2011/2020 | |
| Just Add Water Developments |
16 | active | UK | 2006 | | 2009/2019 | |
| K-Soft |
3 | | UK | | | 1986/1986 | |
| KAG |
1 | dead | UK | 1990 | 1990 | 1990/1990 | |
| Kavcom |
6 | | UK | | | 2011/2014 | |
| Keen Software House |
7 | active | UK | 2007 | | 2012/2019 | Keen Software House s. r. o. Keen Software House Ltd. HQ: London, U.K. ... … |
| Kerian UK |
6 | | UK | | | 1984/1984 | |
| KISS Ltd |
24 | active | UK | | | 2000/2016 | Not to be confused with the Japanese KISS company. Website: http://www.kiss-ltd … |
| Krisalis |
213 | dead | UK | 1987 | 2001 | 1987/2001 | The Krisalis name was originally used as a subsidiary label under Teque Software … |
| Kuma |
42 | | UK | | | 1983/1992 | |
| Laser Dog |
5 | | UK | | | 2016/2017 | |
| Leisure Genius |
60 | dead | UK | 1983 | 1992 | 1983/1992 | Specialising in converting traditional board games, Leisure Genius were a division … |
| Level 9 Computing |
208 | dead | UK | 1981 | 1991 | 1981/1991 | |
| Linux Game Publishing |
24 | active | UK | 2001 | | 1999/2013 * | Aims to bring top quality Linux games to market by providing a reseller channel … |
| Lionhead Studios |
19 | active | UK | 1997 | | 2001/2014 | HQ: Guildford, Surrey Website: http://www.lionhead.com |
| Lo-Fi Games |
1 | active | UK | | | 2018/2018 | Website: http://www.lofigames.com |
| Logotron |
33 | name changed | UK | 1987 | 1990 | 1985/1990 * | Became Millennium Interactive in 1990. |
| Lolimobi |
1 | active | UK | 2020 | | 2022/2022 | Lolimob Inc. Global casual game company. dedicated to creating fun and engaging … |
| M.K. Circuits |
1 | dead | UK | 1982 | 1984 | 1983/1983 | |
| Macmillan |
63 | active | UK | 1843 | | 1983/2000 | |
| Macsen Software |
26 | dead | UK | | 1987 | 1984/1987 | |
| Mad Fellows |
3 | | UK | 2013 | | 2017/2019 | |
| Maelstrom Games |
19 | dead | UK | 1987 | | 1987/1996 | |
| Magnetic Fields |
23 | dead | UK | | | 1989/1996 | Formerly known as "Mr. Chip Software". |
| Magnetic Scrolls |
61 | | UK | 1986 | 1990 | 1985/1993 * | |
| Magpie Computer Developments |
1 | dead | UK | | | 1989/1989 | |
| Martech |
108 | dead | UK | 1982 | 1989 | 1982/1989 | |
| Mastertronic |
718 | bought | UK | 1983 | 1991 | 1981/2015 * | |
| MC Lothlorien |
125 | dead | UK | 1982 | 1990 | 1982/1990 | |
| Medici |
1 | dead | UK | 2000 | 2000 | 2000/2000 | |
| Micro Power |
117 | dead | UK | 1980 | 1991 | 1980/1991 | Micro Power Ltd was a British company that released both hardware and software for … |
| Micro User |
67 | dead | UK | 1983 | 1992 | 1983/1992 | |
| Microdeal |
218 | dead | UK | 1981 | 1990 | 1981/1989 | The company publishing licences were sold to "Hi-Soft" and it ceased trading … |
| MicroStyle |
32 | | UK | | | 1989/1990 | UK label of MicroProse. |
| Midas Interactive Entertainment |
110 | nomoregames | UK | 1998 | | 1995/2010 * | |
