Publishers
- George Woolley 1
- George Young 1
- Gerald G. Swan 1
- Gerald G. Swan Ltd. 1
- Gerard Gaston Grange 2
- Getty Museum 1
- Gibbs Smith, Publisher 1
- Gilbert And Hodges 1
- Gill & Macmillan Ltd 2
- Ginn and Company 3
- Ginn And Company Ltd. 1
- Giorgio Apostolo Editore 1
- Giorgio Nada Editore 4
- Girl's Own Paper 6
- Girls Gone By 24
- Giunti 2
- Giunti Barbera 1
- Glamorgan Archive Service 1
- Glamorgan County History Trust 1
- Glasgow Corporation Public Libraries 1
- Gliddon Books 1
- Global Motorsport Group Gmbh 1
- Gloucestershire County Council 1
- GMS Enterprises 4
- Goddard, Walker & Brown, Ltd. 1
- Godfrey Cave 2
- Goerge Prior 1
- Golden Pleasure Books Ltd. 1
- Golden Press 1
- Golden Valley Publications 1
- Goldenstone Press 2
- Goldstar Holdings 1
- Gollancz 1
- Gomer 3
- Gomer Press 9
- Goncalo Elias 1
- Gono Studio 1
- Good Read Publishing 2
- Good Reading Limited 1
- Goodwood Road Racing Club 2
- Goodwood Road Racing Company Ltd 2
- Goose and Son 1
- Gordon Forrest 1
- Gordon Fraser Gallery 1
- Government Of India 3
- Government Of West Bengal 3
- Government Press, Bulaq 1
- Government Printing Office, Washington 1
- Gowans & Gray Ltd. 1
- Gower 1
- Gower Press 1
- Grafton Books 1
- Graham & Trotman Limited 1
- Graham Gauld 1
- Graham Horton 1
- Graham Shipman 1
- Gralene Books 1
- Gramercy Books 3
- Granada 8
- Grandreams Limited 4
- Grange Books 4
- Grant and Griffith 3
- Grant Richards 20
- Grant Richards Ltd. 1
- Granta 1
- Granta Books 1
- Granta Editions 1
- Graphic Publishers 2
- Grass, Barth & Comp. (w. Friedrich) 1
- Grasshopper 1
- Grayson & Grayson 1
- Great Bear Publishing 2
- Great Eastern Publishing 1
- Great Northern Books 6
- Great Western Railway Company 1
- Green Tiger Press 1
- Greenhill Books 22
- Greening & Co. Ltd. 2
- Greenwich Editions 5
- Greenwillow Books 1
- Greenwood Press 1
- Grenville Publishing Company Limited 3
- Gresley Books 1
- Greystone Books 2
- Grid Publishing 1
- Griffin Press 1
- Griffith and Farran 5
- Griffith Farran & Co. 3
- Griffith Farran Browne & Co Limited. 4
- Griffith Farran Browne & Co. Ltd. 1
- Griffith Farran Okeden & Welsh 4
- Griffith, Farran, Browne & Co. 1
- Griffith, Farran, Okeden & Welsh 1
- Grimsby Public Libraries And Museum 1
- Groombridge & Sons 6
- Grosset & Dunlap 11
- Grosvenor Books 1
- Group Officers Association 1
- Grub Street 22
- Grund 1