Publishers
- N. & S. Press 1
- N.J. International 2
- N.V. De Technische Uitgeverij H. Stam-Haarlem 1
- Nadas 1
- Nai Publishers 2
- 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 Environmental Research Institute 1
- National Galleries Of Scotland 2
- National Gallery 2
- National Gallery Company Limited 1
- National Gallery Of Victoria 2
- National Gallery Publications Limited 2
- National Gallery Singapore 1
- 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 2
- National Museum of Wales 11
- National Museums Northern Ireland 2
- National Portrait Gallery 4
- National Radiological Protection Board 1
- National Railway Museum 1
- National Society's Depository 3
- Nattali & Maurice Limited 1
- Natural History Museum 2
- Natural History Publications (borneo) 2
- Nautical & Aviation Publishing Company Of America 1
- Nautical Association Of Australia Inc. 2
- Nautical Publishing Company 2
- Naval Institute Press 13
- Navigator Publishing Ltd. 1
- Neath Antiquarian Society 1
- Nebulous Books 1
- Neil Wilson 1
- Nelson 6
- Nelson & Phillips 1
- Nemo Productions 1
- Nestle And Anglo-Swiss Condensed Milk Co. 1
- Network Books 1
- Neville Granville 1
- Neville Spearman 1
- New Cavendish Books 8
- New English Library 3
- New Enterprise Publications 1
- New Era Publications 2
- New Holland 3
- New Holland Publishers (uk) Ltd 2
- New Horizon 1
- New York Graphic Society Publishers 1
- New York University Press 2
- Newman Press 1
- Newnes 7
- Newport & Monmouthshire Historical Association 5
- Newport Corporation 2
- Newport Golf Club 2
- News Chronicle 8
- News Chronicle Ltd. 1
- News Chronicle Publications 7
- Newton 1
- Nicholas Kaye 2
- Nichols And Sons 1
- Nicholson & Watson 5
- Nick McCann Associates Ltd 3
- Nick Waters 2
- Nickerson & Collins 1
- Nigel Press 1
- Nihon Keizei Shimbun 1
- Nisbet & Co. Ltd. 18
- Nister & Co. 1
- Nister & Co. Ltd. 4
- Niton Publishing 7
- Nmse Publishing 1
- NO NAME 1
- Noel Carrington 2
- Noel Douglas 1
- Noodle Books 1
- Norfolk & Norwich Naturalists' Society 1
- Norman Adlard & Co. Ltd. 1
- Norman Wright 7
- North Atlantic Books 2
- North Holland Publishing Company 1
- North Kent Books 1
- North South Books 4
- North-East Scotland Bird Club 1
- North-Holland Publishing Company 3
- North-South Books 3
- Northampton Development Corporation 1
- Northamptonshire County Council 1
- Northamptonshire Libraries 1
- Northern Books 1