Let´s go for it:

Adler: 7 (1917) / Klein Adler 2 (1927) / Favorit (1937)
Admira (Maritsa): 2 (197X)
Alpina: SK33 (1954)
Amaya: 86 (196X)
Andina: Grafos (196X) / Especial 90 (1976)
Antares: 20S Efficiency (197X)
Atlantida (Japy) Style (197X)
Consul: 231.3 (197X) / 203 (1973)
Continental: Silenta (1936) / Standard (1917) / Klein Conti (1935)
Corona: 3 (1920)
Daro: Optima (rebranded Erika 50) (1977)
Erika: 42 (cyrillic) (1968)
Facit: 1620 (197X) / Facit T2 (1970)
Fox: 23 (1910)
Fujitsu: Oasys Lite K (1985)
Gossen: Tippa (1953)
Groma: Kolibri (1957)
Halberg: Traveler (1952)
Halda: 6 (1951) / P (1958)
Hermes: 3000 (1971) / Baby (1951) / Baby (1936)
Hispano Olivetti: Lexicon 80 (195X) / M40 (1939) / Studio 44 (195X) / Pluma 22 (x3, one in each color) / Studio 46 (195X)
Iberia: Standard (193X)
IMC Engandine: Rover 5000 Comfortmatic (197X)
Imperial: 58 (1950) / Good Companion 6 (1962)
Junior: 58 (1958)
Maritsa: 30 (198X)
Mercedes (Antares): Portable (197X)
Nakajima: 8000 (1994)
Olivetti: Linea 98 (x2) / Lettera 32 (x2) / Studio 46 (not the same as the Hispano Olivetti Studio 46) / Editor 4 (1972) / ET2200 (1988) / Valentine S (197X) / Lettera 15 (198X) / Studio 45 (197X) / Lettera 25 (1980) / L 20 (198X) / Dora (197X)
Olympia: SG3 (197X) / Traveler Deluxe (x3) / Splendid 33 (196X) / Regina Deluxe (197X)/ 8 (1936)
Olympia (IMC Engandine): Alphamatic 33 (1985) / Olympiette Deluxe (198X)
Optima: M14 (197X)
Orga: Privat 2 (1925)
Patria: Portable (195X)
Remington: Travel-Riter Deluxe (1964) / Junior (197X) / 10 (1915)
Rheinmetall: 9 (1929)
Royal: HH (1955) / Diana (1958) / 5 (1919)
Royal (Kovac): Topia (197X)
Scheidegger: Hispano Suiza (197X)
Sedic: Pulsatta Deluxe (197X)
Seidel & Naumann: Erika S (1937)
Senta: 3-Bank (192X)
Silver Reed: S200 (1980) / Silver Reed EX50 (198X)
Smith Corona: Electra 220 (197X)
Smith Premier: 35 (1937)
Sundstrand (Antares): 2000 (197X)
Regia: Mixta (x2)
Torpedo: 20 (1954) / 18s (196X) / 18 (195X)
Triumph: Tippa 1 (1967)
Triumph Adler: Gabriele 9009 (198X) / Gabriele 2000 (197X) / SE 1030 (198X)
Underwood: Touchmaster Five (196X)  / Universal (1946) / Finger-Flite Champion (195X) / 3 (1916) / All-Electric (1955)
Underwood (Olivetti): 315 (197X)
Urania: 8 (1941)

Along with these I have around 8 - 10 typewriters being currently repaired or waiting its turn for repairs, and a couple of parts typewriters, and an Olivetti Ico on its way .

 

Im not cramming all of my machines out of storage to check the SN, Ill list the ones I know off hand. 
Olympia:
Olympia SM3 in green (first typewriter I ever bought, the first Ive ever used was an SM1) 
Olympia SM4 in Cream/Burgundy 
1961 Olympia Splendid 99 in red
1961 Olympia SG1 in cream/green
1974 Olympia Report Deluxe (white logo, wide carriage)
Erika:
early 1920s Erika folding portable (model 1)
1930s Ideal Standard 
1930s Erika 5
1939 Erika Model M
Erika 9 in black
Erika 10 in black
1961 Erika 20
Other:
Groma Kolibri in black
1954 Hermes baby
Optima Elite 3
Triumph Adler Gabriele 10
1930s Continental Standard
1920s Remington Portable
1958 Remington quiet-riter in salmon
IBM correcting selectric II (96c) in red

1. 1957 Olympia SM3
2. 1954 Underwood Quiet Tab Deluxe
3, 1957 S-C Silent Super
4. 1957 Royal Quiet DeLuxe
5. 1962 Triumph Perfekt
6. 1964 Hermes 3000
7. 1960 AMC (Alpina)
8. 1964 Torpedo 18s (Remington
9. 1961 Olympia SM7
10. 1947 Royal Quiet DeLuxe
11. 1959 Royal Futura 800 (grey)
12. 1968 Olympia SM9
13. 1961 Aztec 600 (Rheinmettal)
14. 1965 Olympia SF
15. 1967 Facit TP2 (Cursive script)
16. 1968 Hermes Baby
17. 1962 Royal Futura 800 (cococa)
18. 1955 Halda P
19. 1966 Underwood Olivetti 21
20. 1961 Olympia SG1 (Standard)
21. 1964 Triumph Tippa
22. 1964 Facit TP1
23. 1971 Facit T2 (Standard)
24. 1959 Consul Deluxe 1511
25. 1969 Facit 1620
26. 1971 Olympia Traveller
27. 1973 Facit 1840 Orange (Electric)
28. 1959 Everest K2
29. 1978 ADDO 621 (Facit)
30. 1974 Olympia SGE-35 (Electric)
31. 1978 Olympiette SEP (Electric)
33. 1957 Imperial Good Companion 5
34. 1977 Olympia SGE A62 (Electric)
35. 1971 Hermes 10 (Electric)
36. 197x Olympia 3 Traveller
37. 195x Sears Tower Presidential

My vintage typewriters
 
Used regularly:
1970 Hermes 3000, like new, fully restored, my most expensive. Elite Font
1961 Olympia ST De Luxe Portable, Made in Western Germany. Like new. Italic Font.
1960 Olympia SM4, Made in Western Germany. Restored. Like New. Elite Font
1967 Olympia SM9. Made in Western Germany. Like new. Restored. Elite Font.
1956 Royal Quiet--Deluxe, Like new. Restored. Pica Font
1929 Royal Portable. My oldest typewriter. Sub-Elite Font. Refurbished. Types nicely.
1960's Smith Corona Galaxie Deluxe. Refurbished. Mint condition. Works great.   Elite Font
 
Electric typewriters:
1965 & 1968  Smith Corona 120 Electra. Mint condition. Elite Font. Very reliable and quick.
 
Under repair, refurbish, or hybearnation:
1948 Hermes Baby. Found in a thrift store 30 years ago. Types well. Pica Font.
1960's Smith Corona Electra 120. Refurb in progress. Backup for parts if needed.
1965 Olympia SM9. Pica Font.  Refurbish in progress.
1960's Smith Corona Galaxie 12. Refurbished. Series 6. Backup for parts if needed. 
1950 Smith Corona Sterling: great thrift store find. Refurb complete. Types great. Elite Font
 

I like Uwe's percentage list.  I just generated one for my collection.  However, as I haven't entered several of the late model wedges, it isn't all-inclusive.

Smith-Corona     20.93%
Olympia     20.93%
Royal     16.28 %
Smith Premier     16.28%
Underwood     8.14%
Remington     8.14%
L.C. Smith     2.33%
Corona     2.33%
Hall (Braille)     1.16%
Fox     1.16%
Hammond     1.16%
Oliver     1.16%