- Louis, A.
- Loutrel, Victor
- Lowry, Joseph Wilson
- Lupton, Thomas Goff
- Lyouns, H. W.
- M. & N. Hanhart
- Maguire, Henry Calton
- Manceau, Alexandre
- Mar, Léopold
- Marichal
- Marie, Alexandre Léon
- Marks, W.
- Marvy, Louis
- Massard, Léopold
- Mauduit, Charles
- Maurand, Charles
- Mayer, Auguste Etienne François
- Measom, William Frederick
- Méaulle, Fortuné-Louis
- Michel
- Michelet
- Midderich
- Miller, William
- Moller, F.
- Moret & Lalaisse
- Mouard, Eugène
- Mulder, Joseph
- Nargeot, Jean-Denis
- Navellier, Narcisse
- Noël, Alphonse-Léon
- Outhwaite, Jean-Jacques
- Pannemaeker, Pierre Joseph de
- Pannemaker, Adolphe François
- Pannemaker, Stéphane
- Paterson, George
- Pearson