List of publishers with date of establishment, current date of establishment and how old their publishing houses are. The list is sorted against the name of the publisher in descending order:

Publisher's name	Date of establishment	Current date	AGE
Ultra Press Inc.	1948-07-10	2025-10-20	77
Pieterson Grp. of Publishers	1950-07-15	2025-10-20	75
Jex Max Publication	1969-12-25	2025-10-20	55
New Harrold Publication	1975-09-05	2025-10-20	50
Mountain Publication	1975-01-01	2025-10-20	50
BPP Publication	1985-10-01	2025-10-20	40
Summer Night Publication	1990-12-10	2025-10-20	34
Novel Publisher Ltd.	2000-01-01	2025-10-20	25