Publishers
- N. & S. Press 1
- N.J. International 2
- N.V. De Technische Uitgeverij H. Stam-Haarlem 1
- Nadas 1
- Nai Publishers 1
- Nand Kishore & Bros 1
- Narkiewicz Thompson 1
- Narrow Gauge Railway Society 1
- National Academy Of Sciences 1
- National Academy Press 2
- National Army Museum 1
- National Book Trust 1
- National Botanic Gardens 1
- National Galleries Of Scotland 2
- National Gallery 3
- National Gallery Company Limited 1
- National Gallery Of Victoria 2
- National Gallery Publications Limited 2
- National Geographic Society 5
- National Geographical Society Of India 1
- National Heritage Museum 1
- National Institute Of Environmental Health Sciences 1
- National Library Of Australia 1
- National Library Of Ireland 1
- National Maritime Museum 1
- National Museum of Wales 7
- National Museums Northern Ireland 2
- National Museums Of Scotland Publishing Limited 1
- National Portrait Gallery 4
- National Radiological Protection Board 1
- National Railway Museum 1
- National Society's Depository 3
- Nattali & Maurice Limited 1
- Natural History Publications (borneo) 4
- Nautical & Aviation Publishing Company Of America 1
- Nautical Association Of Australia Inc. 2
- Nautical Publishing Company 1
- Naval Institute Press 15
- Navigator Publishing Ltd. 1
- Nebulous Books 1
- Neil Wilson 1
- Nelson 6
- Nelson & Phillips 1
- Nelson And Saunders 1
- Nemo Productions 1
- Nestle And Anglo-Swiss Condensed Milk Co. 1
- Neville Granville 1
- New Cavendish Books 5
- New English Library 2
- New Enterprise Publications 1
- New Era Publications 1
- New Holland 2
- New Holland Publishers (uk) Ltd 1
- New York Graphic Society Publishers 1
- New York University Press 2
- Newnes 7
- Newport & Monmouthshire Historical Association 3
- Newport Corporation 2
- Newport Golf Club 2
- News Chronicle 7
- News Chronicle Ltd. 1
- News Chronicle Publications 7
- Newton 2
- Nexus Special Interests Ltd 1
- Nicholas Kaye 1
- Nichols And Sons 1
- Nicholson & Watson 5
- Nick McCann Associates Ltd 3
- Nick Waters 2
- Nickerson & Collins 1
- Nihon Keizei Shimbun 1
- Nisbet & Co. Ltd. 19
- Nister & Co. 1
- Nister & Co. Ltd. 4
- Niton Publishing 5
- Nmse Publishing 1
- NO NAME 1
- Noel Carrington 2
- Noel Douglas 1
- Norfolk & Norwich Naturalists' Society 1
- Norfolk Museums Service 1
- Norman Adlard & Co. Ltd. 1
- Norman Wright 6
- North Atlantic Books 2
- North Holland Publishing Company 1
- North South Books 1
- North-East Scotland Bird Club 1
- North-Holland Publishing Company 3
- North-South Books 4
- Northampton Development Corporation 1
- Northamptonshire County Council 1
- Northamptonshire Libraries 1
- Northern Books 1
- Northern Mine Research Society 3
- Northumberland County Library 1
- Northumberland Press 1
- Northwood Books 1
- Nostalgia Road Publications 2
- Nottingham City Museums 1
- Nottingham Civic Society 1