Publishers
- Head Of Zeus 1
- Headline 4
- Headline Book Publishing PLC 1
- Heathfield Railway Publications 1
- Heaven And Earth Publishing 1
- Heinemann 36
- Heinemann Educational Books 3
- Heinemann Quixote Press 1
- Heinemann Young Books 1
- Helena Osvaldova 1
- Helion & Company 21
- Helion & Company Ltd 4
- Helm Information 1
- Helmshore Local History Society 1
- Henderson Publishing 1
- Hendon Publishing Co. Ltd. 2
- Henrik Koppels Forlag 1
- Henry Altemus Company 10
- Henry And Co. 1
- Henry Frowde 41
- Henry G. Bohn 4
- Henry Herbert, Publisher 1
- Henry Holt and Company 4
- Henry Melland 2
- Henry Mozley And Son 1
- Henry Thomas 2
- Henry Washbourn 1
- Henry Young & Sons 1
- Her Majesty's Stationery Office 14
- Herald Gravure 1
- Herald Printers (whitchurch) Ltd 1
- Herbert & Daniel 1
- Herbert Jenkins 6
- Herbert Jenkins Limited 5
- Herbert Jenkins Ltd. 4
- Herbert Joseph 1
- Herbert Joseph Limited 2
- Herder & Co. 1
- Heritage Trust Of Lincolnshire 1
- Hermann 1
- Hermann & Cie. 1
- Hermann Schafftein 1
- Hermes House 2
- Herridge & Sons 1
- Hertfordshire Natural History Society 1
- Hickory House Press 1
- High Museum Of Art, Atlanta 1
- Hikoki Publications 5
- Hildesheimer & Faulkner 6
- Hillside Publishing 1
- His Majesty's Stationery Office 1
- Hisarlik Press 1
- Histoire & Collections 2
- Historica Selecta 1
- Historical Aviation Album 1
- Historical Model Railway Society 1
- Historical Publications Ltd. 6
- History Research 1
- Hitchin Historical Society 1
- Hitchin Urban District Council 2
- HMSO 34
- Hobby House Press 3
- Hodder & Stoughton 258
- Hodder & Stoughton Children's Books 2
- Hodder & Stoughton Limited 1
- Hodder Children's Books 20
- Holborn House 1
- Holiday House, New York 3
- Holland Studio Craft Ltd. 3
- Hollis & Carter 9
- Holt Rinehart & Winston 2
- Holywell Press 2
- Home Words Publishing Office 1
- Homewood Publishing Company 1
- Honda (u.K.) Ltd. 1
- Hong Kong Museum Of Art 1
- Honno 1
- Hood & Co. Limited 1
- Horace Cox 1
- Horizons De France 1
- Houghton Mifflin and Company 2
- Houghton Mifflin Company 9
- Houlston & Sons 2
- Houlston and Stoneman 1
- Howard Baker 79
- Howard Baker Press 63
- Howard Frisch 1
- HSW Print 1
- Hudson & Kearns 1
- Hudson Hills Press 2
- Hugh Evans 5
- Hugh Evelyn 2
- Hugh Henry 1
- Hughes & Son 4
- Hughes A'I Fab 3
- Hughes and Son Ltd. 2
- Hughes Griffin Press 1
- Hull City Museums 2
- Hull Museum 1
- Hulton Press 2