Full Members of the project use the complete functionality of the Horizon online computer system for circulation and other transactions, in addition to contributing to the Regional Catalog and Patron Database.

Contributing Members of Compass add holdings to the Regional Catalog and/or perform patron registration on Horizon. These members do not circulate material on the system. It is not possible to place electronic holds on their items, and the availability of their material is not tracked in the online catalog.

Public Libraries:

Aurora Public Library
Babbitt Public Library
Baudette Public Library
Bovey Public Library
Buhl Public Library
Calumet Public Library
Carlton Public Library
Chisholm Public Library
Coleraine Public Library
Cloquet Public Library
Cook Public Library
Ely Public Library
Eveleth Public Library
Gilbert Public Library
Grand Marais Public Library
Grand Rapids Area Library
Hibbing Public Library
Hoyt Lakes Public Library
International Falls Public Library
Keewatin Public Library
Marble Public Library
Moose Lake Public Library
Mt. Iron Public Library
Silver Bay Public Library
Two Harbors Public Library
Virginia Public Library

School libraries:

Cook County School District (ISD 166)
Cook County Middle School High Media Center
Deer River School District (ISD 317)
Deer River High School
King Elementary School (Deer River)
Ely School District (ISD 696)
Memorial Junior/Senior High School
Washington Elementary School
Eveleth-Gilbert School District (ISD 2154)
Nelle Shean/Junior High Media Center
Eveleth-Gilbert Senior High Media Center
Franklin Elementary School Media Center
Grand Rapids School District (ISD 318)
Bigfork Secondary School
Grand Rapids Middle School
Grand Rapids High School
International Falls School District (ISD 361)
Falls High School
Falls Elementary School
Lake Superior School District (ISD 381)
Minnehaha Elementary School (Two Harbors)
Two Harbors High School
William Kelley School (Silver Bay)
Mountain Iron-Buhl School District (ISD 712)
Mountain Iron-Buhl High School (Mountain Iron)
Merritt Elementary School (Mountain Iron)
 Nashwauk Keewatin School District (ISD 319)
Nashwauk High School/Nashwauk Area Community Library
Keewatin Elementary School
 North Shore Community School (Duluth)

Special libraries:

Iron Range Research Center (Chisholm)

Current Contributing Members

Duluth Public Library
Kinney Public Library