British Aircraft Companies - M
- McCandless
- McCardle and Gould
- McCurd
- M'Donnell
- McDonnell
- Macdonald
- Macfie
- Mackensie-Hughes
- Mackenzie-Osborne
- Mackworth
- McMullen
- MacWilliams
- Madeler
- Madison-Butler
- MagSurvey
- Maillard
- Malcolm
- Malloy
- Mann and Grimmer
- Mann and Overtons
- Mann and Wellings
- Mann Egerton
- Manning-Flanders
- Manuel
- Marendaz
- Marlboro
- Marsh
- Marshall
- Martin (circa 1937)
- Martin (circa 1937)
- Martin (circa 1975)
- Martin and Handasyde
- Martinsyde
- Martin-Baker
- Mason
- Mattocks
- Maund
- Maxfield
- Maxim
- Maynard
- MBA
- McNab
- Medway
- Meggitt
- Megone
- Membland
- Mercury
- Merlin (circa 1909)
- Merlin (circa 1988)
- Merriam
- Mersey
- Metzgar and Leno
- Micro Biplane Aviation
- Microflight
- Midland Aero Club
- Midland Gliding Club
- Midland Glyders
- Midland Ultralights
- Miles
- Miller
- Millichamp
- Mills-Fulford
- Mines
- Mitchell and Sons
- Mitchell Bros.
- Mitchell, C. G. B.
- Mitchell-Prizeman
- Mitchell-Proctor
- ML
- Molesworth-Hughes
- Monospar
- Montgomerie
- Moon
- Moore (circa 1892)
- Moore (circa 1970)
- Moore-Brabazon
- Mortimer and Vaughan
- Morton and Weaver
- Mosscraft
- Moy
- Moya
- Mulliner
- Mumford, E.R.
- Mumford, W
- Murray
- Musgrave