Publishers
- H. & J. Pillans & Wilson 4
- H. Alabaster, Gatehouse & Co. 1
- H. Dumont 1
- H. F. & G. Witherby 5
- H. Fisher, Son And Jackson 2
- H. Fleischmann 3
- H. Humphreys 2
- H. Veenman & Zonen Ltd. 1
- H.A. and W.L. Pitkin Ltd. 4
- H.D. Symonds 1
- H.F. & G. Witherby Ltd. 50
- H.F. Ullmann 3
- H.F.W. Deane & Sons 1
- H.J. Drane 1
- H.J. Drane & Co. 1
- H.J.V.D. Garde & Co. 1
- H.K. Lewis 1
- H.M.S.O. 1
- H.R. Allenson 4
- Hachette 7
- Hachette Partworks Ltd 1
- Hafner Publishing Company 3
- Haile Sellassie I University 2
- Haileybury And Imperial Service College 2
- Hal Leonard Books 1
- Halbert's Family Heritage 1
- Halcyon House 1
- Hali Publications Limited 1
- Hall & Knight Ltd 1
- Hallmark 1
- Halsgrove 5
- Halstar 1
- Halsted Press 1
- Halton & Truscott Smith Ltd. 5
- Hambledon 1
- Hambledon And London 1
- Hambledon Continuum 1
- Hambleside Publishers 1
- Hamer 20th Century Books 1
- Hamilton, Adams & Co. 5
- Hamilton, Adams, and Co. 2
- Hamish Hamilton 106
- Hamish Hamilton Childrens Books 6
- Hamish Hamilton Ltd 2
- Hamlyn 24
- Hammond, Hammond & Company 1
- Hammond, Hammond & Company Ltd. 2
- Hampshire County Council 3
- Hampshire Ornithological Society 1
- Hampster Books 3
- Hampton Cars 1
- Hamwic Publishers 1
- Hand And Heart Publishing Office 1
- Handpost Books 3
- Hanns Reich 2
- Har-Anand Publications Pvt Ltd 1
- Harcourt 1
- Harcourt Brace & Co. 1
- Harcourt Brace & World Inc. 2
- Harcourt Brace Jovanovich, Publishers 2
- Harcourt, Brace & Company 6
- Harcourt, Inc 1
- Harding And Curtis 1
- Hardwicke & Bogue 1
- Hardwicke Press 1
- Hare Print Press 1
- Hargreaves Sports Ltd. 1
- Harleyford Publications Limited 15
- Harmony Books 1
- Harmsworth Bros., Limited 1
- Harper 1
- Harper & Bros 11
- Harper & Row 17
- Harper And Brothers 9
- Harper Collins 81
- Harper Collins Childrens Books 16
- Harper Press 4
- Harpercollins Publishers Ltd 3
- Harperfestival 1
- Harrap 4
- Harrap Limited 1
- Harris Museum And Art Gallery, Preston 1
- Harrison & Sons 1
- Harrowood Books 2
- Harry Cuff Publications Limited 1
- Harry N. Abrams 11
- Harry N. Abrams, Inc. 4
- Hart Publishing Co. 1
- Hart-Davis 1
- Hart-Davis, MacGibbon 2
- Harvard University Press 6
- Harvester Press 2
- Harvey And Darton 2
- Harvey Miller 1
- Harvill 2
- Harvill Secker 1
- Harwood Academic Publishers 2
- Hastings-Spital Publishing 1
- Hatchard & Co. 1
- Haverstock Publishers Ltd. 2