Publishers
- H. & J. Pillans & Wilson 2
- H. Alabaster, Gatehouse & Co. 1
- H. Besley 1
- H. Dumont 1
- H. F. & G. Witherby 6
- H. Fisher, Son And Jackson 2
- H. Fleischmann 2
- H. Humphreys 2
- H. Pordes 1
- H. Veenman & Zonen Ltd. 1
- H. Weishaupt 1
- H.A. and W.L. Pitkin Ltd. 3
- H.A.C. 1
- H.D. Symonds 1
- H.F. & G. Witherby Ltd. 39
- H.F. Ullmann 3
- H.G. Walters 1
- H.J. Drane 1
- H.J. Publications 1
- H.K. Lewis 1
- H.O. Duncan 1
- H&m Productions 1
- Haakman B.V. 1
- Hachette 6
- Hackman Printers Ltd. 2
- Hafner Publishing Company 1
- Haile Sellassie I University 2
- Haileybury And Imperial Service College 1
- Hal Leonard Books 1
- Halcyon House 1
- Hali Publications Limited 1
- Hall & Knight Ltd 1
- Hall Park Books Ltd. 13
- Hall The Printer Ltd. 1
- Hallmark 1
- Hallmark Children's Editions 1
- Halsgrove 8
- Halton & Truscott Smith Ltd. 4
- Hambleside Publishers 1
- Hamilton, Adams & Co. 5
- Hamilton, Adams, and Co. 2
- Hamish Hamilton 80
- Hamish Hamilton Childrens Books 13
- Hamish Hamilton Ltd 2
- Hamlyn 16
- Hammond, Hammond & Company Ltd. 1
- Hampshire County Council 3
- Hampster Books 4
- Hamwic Publishers 1
- Handpost Books 2
- Hanns Reich 2
- Har-Anand Publications Pvt Ltd 1
- Harbour Publishing 3
- Harcourt Brace & World Inc. 1
- Harcourt Brace Jovanovich, Publishers 2
- Harcourt, Brace & Company 1
- Harcourt, Inc 1
- Harding And Curtis 1
- Harley Books 1
- Harley Davidson, Inc 1
- Harleyford Publications Limited 2
- Harmsworth Bros., Limited 1
- Harper & Bros 8
- Harper & Row 13
- Harper And Brothers 6
- Harper Collins 63
- Harper Collins Childrens Books 28
- Harper Collins Publishers Ltd 1
- Harper Press 4
- Harpercollins Publishers Ltd 2
- Harrap 2
- Harrap & Co 1
- Harrison House 1
- Harrowood Books 1
- Harry Margary 1
- Harry N. Abrams 9
- Harry N. Abrams, Inc. 7
- Hart Publishing Co. 1
- Hart-Davis 1
- Hart-Davis Educational Limited 1
- Harvard University Press 5
- Harvester Press 2
- Harvey And Blythe 1
- Harvey And Darton 4
- Harvey Miller Publishers 2
- Harwood Academic Publishers 2
- Hatchard & Co. 1
- Hatje Cantz Verlag 1
- Havelock Publishing 1
- Haverstock Publishers Ltd. 1
- Hawk Books Limited 2
- Hawk Books Ltd. 2
- Hawk Editions 1
- Hawk Publishing 1
- Hawker Siddeley (hatfield) Service School 1
- Haymarket Motoring Publications 3
- Haymarket Publishing Limited 1
- Haynes 63
- Haynes Publishing 37
- Haynes Publishing Group 94