  We present the results of the Bibliometric Indicators for Publishers project
(also known as BiPublishers). This project represents the first attempt to
systematically develop bibliometric publisher rankings. The data for this
project was derived from the Book Citation Index, and the study time period was
2009-2013. We have developed 42 rankings: 4 for by fields and 38 by
disciplines. We display six indicators by publisher divided into three types:
output, impact and publisher's profile. The aim is to capture different
characteristics of the research performance of publishers. 254 publishers were
processed and classified according to publisher type: commercial publishers and
university presses. We present the main publishers by fields. Then, we discuss
the main challenges presented when developing this type of tools. The
BiPublishers ranking is an on-going project which aims to develop and explore
new data sources and indicators to better capture and define the research
impact of publishers.
