- check_box_outline_blankSurvey of India Offices, Calcutta41
- check_box_outline_blankWilliam Blackwood & Sons15
- check_box_outline_blankEdward Stanford12
- check_box_outline_blankStanford's Geographical Establishment11
- check_box_outline_blankIntelligence Division, War Office9
- check_box_outline_blankIntelligence Branch, War Office6
- check_box_outline_blankRoyal Geographical Society6
- check_box_outline_blankSurveyor General's Office, Calcutta4
- check_box_outline_blankGeorge Philip & Son3
- check_box_outline_blankSurvey of India, Office of the Trigonometrical Branch3
- check_box_outline_blankThomas and John Bowles3
- check_box_outline_blankA. & C. Black2
- check_box_outline_blankBlack, Parbury & Allen2
- check_box_outline_blankBritish North Borneo Chartered Company2
- check_box_outline_blankButton and Gale2
- check_box_outline_blankHydrographic Office, Admiralty2
- check_box_outline_blankJulius Bien & Co.2
- check_box_outline_blankRoyal Asiatic Society, Straits Settlements’ Branch2
- check_box_outline_blankW. & A.K. Johnston2
- check_box_outline_blankWar Department, Adjutant General's Office, Military Information Division2