Publishers
- Imagier Publishing 2
- Immel 1
- Imperial Chemical Industries 1
- Impressions Of Monmouth Ltd 1
- Imprimerie De La Manufacture De La Charite 1
- Imray, Laurie, Norie & Wilson Ltd. 1
- Independent Books 1
- Independent Music Press 1
- Indepenpress Publishing Limited 1
- Index 2
- Indiana University Press 8
- Indological Book House 1
- Informa Law From Routledge 1
- Information As Material 1
- Ingram, Cooke & Co. 1
- Ingrid, Sils 6
- Inner Traditions International, Ltd. 1
- Innovative Kids 3
- Inside Pocket Ltd. 2
- Inspire Creative 1
- Institue Of Fisheries Management 1
- Institut D'Ethnologie 1
- Institut D'Etudes Slaves De L'Universite De Paris 1
- Institut De Recherches Scientifiques Et Techniques 1
- Institut Des Hautes Etudes Scientifiques 2
- Institute For Strategic Studies 2
- Institute Of Cornish Studies 2
- Institute Of Historical Research 4
- Institute Of Irish Studies 2
- Institute Of Mathematical Statistics 1
- Institute Of Physics 3
- Institution Of Electrical Engineers 2
- Institution Of Naval Architects 2
- Instituto Botanico Da Universidade De Coimbra 1
- Instituto Camon Aznar 1
- Instituto Geografico De Agostini 1
- International Biggles Association 1
- International Bureau For Plant Taxonomy And Nomenclature 1
- International Correspondence Schools Ltd. 1
- International Exhibitions Foundation 1
- International Learning Systems Corporation Limited 1
- Interpet Publishing 3
- Interpress Publishers 2
- Interpresse 1
- Ion Creanga Publishing House 4
- IPC Magazines Ltd. 8
- Ipc Transport Press 1
- Iris Druck C. Weller & Co. 1
- Irish Academic Press 2
- Irish Manuscripts Commission 1
- Irish Railway Record Society 1
- Ironbridge Open Air Museum Of Steel Sculpture 1
- Ironbridge Publications 1
- Irwell Press 13
- Irwin Publishing 1
- IS Enterprises 1
- Isbister & Co. Ltd. 1
- Islamic Art Publications 1
- Island Press 1
- Istituto Bancario San Paolo Di Torino 1
- Italtel 1
- Ithaca 1
- Iucn 1
- Iveco Image 1
- Ivor Nicholson & Watson 2
- Ivor Nicholson & Watson Ltd. 2
- Ivor Waters 3
- Ivy Leaf 1
- Ivy Press 1
- IWRB 1
- J. - B. Balliere Et Fils 1
- J. & A. Churchill 3
- J. Alfred Sharp 1
- J. And F. Rivington 1
- J. And J. Pemberton 1
- J. Arliss 1
- J. Arthur Dixon Ltd 1
- J. Bale 1
- J. Bew 1
- J. Boyle 1
- J. Cary 1
- J. Coker & Co. 3
- J. Coker & Co. Ltd. 15
- J. Curwen & Sons Ltd. 2
- J. Cuthell 2
- J. Debrett 1
- J. Dodsley 3
- J. Fairston 3
- J. Faulder 1
- J. Good 1
- J. Harris 4
- J. Hetzel Et Cie 2
- J. Irving 1
- J. Johnston 1
- J. Kyrle Fletcher 2
- J. Lindauer 1
- J. Masters And Co. 1
- J. P. Lippincott Co 1
- J. Richardson 1
- J. Salmon 6