- Southern Martlet 1929
- Metal Martlet1930
- M.1 Satyr 1932
- M.2 Hawk 1933 two-seat light monoplane
- M.2F-T Hawk Major 1934 Hawk successor with de Havilland Gipsy Major engine
- M.2 E,L,U Hawk Speed Six 1934 racing version of Hawk Major with de Havilland Gipsy Six engine
- M.2 W,X,Y Hawk Trainer
- M.3A Falcon Major 1934
- M.3B Falcon Six1935
- M.3E Gillette Falcon 1944 Modified M.3B Supersonic Research for M.52 M.4 Merlin 1935
- M.5 Sparrowhawk 1935
- M.6 Hawcon 1935
- M.7 Nighthawk 1935
- M.8 Peregrine 1936
- M.9 Kestrel 1937
- M.9A Master I 1939 advanced trainer
- M.11 Whitney Straight 1936
- M.11 CM.11 C1
- M.12 Mohawk 1937
- M.13 Hobby 1937
- M.14 Magister 1937 basic military trainer
- M.14 Hawk Trainer III 1937 Magister for civil and export sales
- M.15 M.15 1939 Air Ministry Specification T.1/37
- M.16 Mentor1938 three-seat training and communications monoplane
- M.17 Monarch1938
- M.18 1938
- M.19 Master II 1939
- M20/2 1940 prototype low-cost fighter
- M.22A design onlydesigned to F.18/40 specification for a turret-equipped night-fighter
- M.24 Master Fighter 1940 emergency conversion of trainer design to fighter, retrospectively numbered M.24
- M.25 Martinet 1943 target tug
- M.26"X" planned 55-seat trans-Atlantic airliner
- M.27 Master III 1940
- M.28 Mercury 1941 training or communications
- M.30 X Minor 1942 small-scale prototype for Miles X airline design
- M.33 Monitor 1944 twin-engined target tug
- M.35 Libellula 1942 tandem-wing design fighter
- M.37 Martinet Trainer 1946 2two-seat trainer
- M.38 Messenger 1942
- M.39B Libellula 1943 scale aircraft of tandem-wing M.39 fast bomber design
- M.42 and M.43 not built designs tendered for an "Army Direct Support Aircraft" (i.e. a ground attack aircraft). Both tandem wing, one with twin Merlin, other with single Griffon engine.
- M.44 not built another design for the ground attack specification, conventional design with twin Merlins
- M.48 Messenger Development1945
- M.52 M.52 supersonic research aircraft design
- M.50 Queen Martinet1944 unmanned target drone version of Martinet
- M.57 Aerovan1945 STOL transport
- M.60 Marathon I 1945 civil airliner design – would become Handley Page Marathon
- M.63B not builtTandem wing jet mail plane
- M.64L.R.5 1945