Publishers
- N. Boubee 1
- N.A.G. Press Ltd. 2
- N.R. Omell Gallery 1
- Nadas 1
- Nai Publishers 2
- Nand Kishore & Bros 1
- Narrow Gauge Railway Society 1
- National Academy Of Sciences 1
- National Academy Press 2
- National Army Museum 1
- National Botanic Gardens 1
- National Galleries Of Scotland 2
- National Gallery 3
- National Gallery Company Limited 2
- National Gallery Of Ireland 1
- National Gallery Of Victoria 2
- National Gallery Publications Limited 3
- National Gallery Singapore 1
- National Geographic Society 10
- National Geographical Society Of India 1
- National Institute Of Environmental Health Sciences 1
- National Library Of Australia 1
- National Maritime Museum 1
- National Museum Of Canada 1
- National Museum of Wales 12
- National Museums & Galleries Of Wales 1
- National Organizing Committee 1
- National Portrait Gallery 2
- National Radiological Protection Board 1
- National Society's Depository 6
- Natraj Publishers 2
- Natural History Museum 2
- Natural History Publications (borneo) 1
- Nature Conservancy Council 1
- Nautical & Aviation Publishing Company Of America 1
- Nautical Publishing Company 2
- Naval Historical Center 1
- Naval Institute Press 27
- Navigator Publishing Ltd. 1
- Navybooks 1
- Nea W. Ensor 1
- Nebulous Books 1
- Negretti & Zambra 1
- Nelson 9
- Nelson & Phillips 1
- Nelson And Saunders 1
- Nelson Doubleday Inc. 1
- Nemo Productions 1
- Nestle And Anglo-Swiss Condensed Milk Co. 1
- Network Books 1
- New Burlington Books 1
- New Cavendish Books 9
- New English Library 3
- New Enterprise Publications 1
- New Era Publications 4
- New Holland 13
- New Holland Publishers (uk) Ltd 1
- New Orchard Editions Ltd 1
- New York Graphic Society Publishers 1
- Newark (nottinghamshire & Lincolnshire) Air Museum Limited 1
- Newman Press 1
- Newnes 18
- Newnes Educational Publishing Co. Ltd. 1
- Newport & Monmouthshire Historical Association 3
- Newport Corporation 3
- Newport Public Libraries Committee 1
- News Chronicle 10
- News Chronicle Ltd. 5
- News Chronicle Publications 4
- News of the World 2
- Newton 3
- Nicholas Kaye 3
- Nichols And Sons 2
- Nicholson 1
- Nicholson & Watson 5
- Nickerson & Collins 1
- Nicola Zanichelli 1
- Nicosia 1
- Nihon Keizei Shimbun 1
- Nisbet & Co. Ltd. 21
- Nister 1
- NISTER & CO. 1
- Nister & Co. Ltd. 4
- Niton Publishing 2
- Nms Publishing 1
- NO NAME 1
- Nobrow Ltd. 1
- Noel Carrington 4
- Noel Douglas 1
- Nonsuch 1
- Norfolk & Norwich Naturalists' Society 1
- Norman Adlard & Co. Ltd. 1
- Norman Wright 5
- North Holland Publishing Company 1
- North Kent Books 1
- North South Books 5
- North-East Scotland Bird Club 2
- North-Holland Publishing Company 4
- North-South Books 2
- Northamptonshire Libraries 1