What CW Mars does

CW MARS (Central/Western Massachusetts Automated Resource Sharing) is a 501(c)(3) non-profit library consortium incorporated in 1984 and headquartered in Worcester, Massachusetts. It operates as the largest of nine library consortia in Massachusetts, serving 167 member libraries across 206 branch locations in Central and Western Massachusetts, with a registered patron base of 750,000. Its core function is to host and operate the shared technology infrastructure that lets member libraries of all sizes — from towns under 500 to large urban systems like Worcester and Springfield — share a single catalog of 8 million items and process 13.3 million annual loans (10 million physical, 3.3 million digital in 2025).

The consortium's technology stack is built on the open-source Evergreen Integrated Library System (adopted May 2012 after prior DataPhase, CARL, and Innovative Interfaces deployments), with Aspen Discovery (supported by ByWater Solutions) as the public-facing catalog. Member libraries also receive access to consortial subscriptions including OverDrive digital content, NoveList readers' advisory, Gale OneFile databases, and Britannica, plus native iOS/Android apps and an online eCard. CW MARS additionally delivers telecommunications services funded through the FCC E-rate program.

The business model is a closed membership subscription: annual membership fees from the 167 libraries are the primary revenue stream, supplemented by Massachusetts Board of Library Commissioners (MBLC) LSTA/state grants and FCC E-rate reimbursements. Governance rests with a Users Council (one vote per member library) and a 12-member Executive Board, and the organization operates with a very lean staff of 1-10 employees, distributing services through member libraries rather than direct consumer channels.

Name

CW Mars

Legal name

C/W MARS

Website

https://cwmars.org

Company type

Private

Founded year

1981

Operating status

Operating

Headcount range

1–10 employees

Short description

CW MARS is a 501(c)(3) library consortium operating the largest of nine Massachusetts library networks, providing a shared Evergreen ILS catalog of 8 million items to 167 member libraries and 750,000 patrons across Central and Western Massachusetts.

Ownership category

akta.pro rank

Product category

Library Consortium Services

NAICS

Libraries and Archives (519210), Libraries and Archives (51921)

SIC

Services-Membership Organizations (8600)

akta.pro primary industry

Interlibrary Loan (ILL) & Resource Sharing Operations (EDAEAGAK)

akta.pro secondary industries

Library Collections & Cataloging Services (Acquisitions, Metadata, Circulation) (EDAEAGAE), Libraries, Archives & Special Collections (BPAGAHAF), Library/Media Center & Digital Resource Management Systems (EDAJAMAN)

Keywords

• Library consortium services
• Integrated library systems
• Resource sharing networks
• Digital library catalogs
• Interlibrary loan services

Headquarters

HQ city

Worcester

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Infrastructure

Revenue model

1. Annual Membership Fees: C/W MARS is primarily funded through annual membership fees paid by member libraries. These fees provide access to the shared ILS, cataloging services, technical support, training, and consortia-wide subscriptions.
2. Government Grants (MBLC): Significant support received from the Massachusetts Board of Library Commissioners (MBLC) through LSTA grants and other state funding programs.
3. E-rate Funding (FCC): Additional funding for telecommunications services comes from the Federal Communications Commission E-rate program.

Go-to-market motion1 record

Distribution channels5 records

Marketing channels3 records

Core offering

CW MARS is a library consortium that operates a shared open-source Evergreen Integrated Library System (ILS) and Aspen Discovery public catalog interface for 167 member libraries across Central and Western Massachusetts. The consortium hosts 8 million items in a unified catalog, enables interlibrary loan and resource sharing among 750,000 registered patrons, provides technical support and telecommunication services, and negotiates group subscriptions to digital content (OverDrive, NoveList, Britannica) for its members.

Product overview

C/W MARS is a library consortium providing a unified technology platform for over 150 member libraries in Central and Western Massachusetts. The core offering is the shared Evergreen ILS (Integrated Library System) powering the shared online catalog and staff operations. Built on top of this is the Aspen Discovery public catalog interface and a dedicated Kids Catalog for children's materials. The consortium provides digital content access through OverDrive (ebooks, audiobooks, magazines, video), LEA for statewide lending, and the Commonwealth Catalog for inter-library borrowing. Member libraries also receive mobile app access, cataloging services, technical support, telecommunications services, and print management software. Patrons benefit from a digital eCard option, access to databases including NoveList Plus, Digital Commonwealth historical collections, and the ability to use their card at any consortium member library.

Differentiator

Problem solved

Functional benefit

Brands

• CW MARS Kids: A dedicated catalog for children's materials within the C/W MARS consortium.

Products and services

• Shared Integrated Library System (Evergreen ILS) Open-source Integrated Library System hosting the shared online library catalog, circulation control, interlibrary loan, acquisitions, cataloging, and bibliographic record management for all 167 member libraries across Central and Western Massachusetts.
• Aspen Discovery Public Catalog Public-facing catalog interface powered by Aspen Discovery and supported by ByWater Solutions, enabling 750,000 patrons across the consortium to search 8 million items, place holds, manage accounts, and access personalized recommendations and saved searches.
• CW MARS Libraries Mobile App Native iOS and Android application providing catalog search, holds management, fine payment, digital library card display, list management, item checkout viewing, and access to OverDrive digital content for registered patrons.
• CW MARS Kids Catalog Dedicated catalog interface for children's materials within the C/W MARS consortium, providing age-appropriate discovery and search for young patrons.
• CW MARS eCard Digital library card available through online registration for eligible Massachusetts residents, granting immediate access to electronic materials including ebooks, audiobooks, magazines, and databases without visiting a physical library.
• Consortial OverDrive Digital Collection Shared ebook, audiobook, magazine, and video collection licensed for the entire C/W MARS consortium, providing patrons priority holds access to digital content through the Libby app and OverDrive platform.
• Cataloging Services and Support Professional cataloging services and bibliographic record management provided to member libraries as part of the shared ILS infrastructure.
• Technical Support and Training ILS technical support, staff training, custom reports, and annual statistics services for member library personnel.
• Telecommunication and E-rate Internet Services Internet line and telecommunication hardware services for networked member libraries, funded in part through the FCC E-rate program to subsidize connectivity costs.
• Print Management Software Print management software including mobile print option provided to member libraries for patron printing services.
• LEA (Library Ebooks and Audiobooks) Statewide Lending Statewide Massachusetts ebook and audiobook lending platform enabling patrons to borrow eContent from all library networks regardless of home library.
• Commonwealth Catalog (ComCat) Interlibrary Resource Sharing Inter-library resource sharing catalog enabling patrons to search and borrow physical materials from libraries across the Commonwealth of Massachusetts beyond the C/W MARS consortium.
• Digital Commonwealth Digitized images, documents, and sound recordings from Massachusetts libraries, museums, historical societies, and archives available for local history research.
• NoveList Plus Readers Advisory Consortial subscription to the NoveList readers advisory database providing expert book recommendations, reviews, articles, and lists for member library patrons, plus online catalog record enhancements.
• Gale OneFile Database Collections Consortial subscription to multiple Gale OneFile databases covering topics including business, culinary arts, fine arts, health, news, and academic research.
• Britannica School and Library Consortial subscription to Britannica School, Britannica Library, and related products providing encyclopedic content, dictionary, thesaurus, and atlas for elementary, middle, and high school students.

Quantifiable outcome

• 13.3 million loans processed in 2025, including 10 million physical items and 3.3 million e-items
• +2 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration16 records

Feature5 records

Partnerships

Five partnerships are on record, tiered core.

• Massachusetts Board of Library Commissioners (MBLC)coreOthersMBLC provides significant funding support to C/W MARS. Databases and resources are made possible by MBLC and Massachusetts Library System with funding from the Commonwealth of Massachusetts. MBLC also certifies public libraries for state aid.
• Federal Communications Commission (FCC) E-rate ProgramcoreOthersFCC E-rate program provides funding for telecommunications services including internet connectivity for member libraries.
• ByWater SolutionscoreTechnology or IntegrationByWater Solutions provides support for Aspen Discovery, the public catalog interface used by C/W MARS. The app is powered by Aspen Discovery supported by ByWater Solutions.
• OverDrivecoreTechnology or IntegrationOverDrive provides the consortial digital collection of e-books, audiobooks, and magazines accessible through the Libby app. C/W MARS provides holds priority on the consortium OverDrive collection.
• Massachusetts Library SystemcoreOthersMLS works with MBLC to support library services in Massachusetts. Member libraries must be members of MLS to join C/W MARS. Databases are funded through MLS with MBLC support.

Scale indicators6 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Minuteman Library Network: Massachusetts library consortium serving 40+ member libraries in the MetroWest region with shared ILS and resource sharing. Operates the same consortium-plus-shared-catalog model as C/W MARS and competes for statewide influence.
• Merrimack Valley Library Consortium: Massachusetts library consortium serving libraries in the Merrimack Valley region with shared integrated library system and resource sharing services. Directly comparable multi-type library consortium model in the same state.
• Old Colony Library Network (OCLN): Massachusetts regional library network providing shared ILS, interlibrary loan, and technology services to member libraries in southeastern Massachusetts. Operates with similar membership-fee-and-grant funding structure.
• CLAMS (Cape Libraries Automated Materials Sharing): Massachusetts library consortium providing shared ILS and resource sharing to Cape Cod and Islands libraries. Closest organizational analog to C/W MARS in scale, mission, and governance model.
• NOBLE (North of Boston Library Exchange): Massachusetts library consortium serving 38+ member libraries north of Boston with shared catalog and resource sharing. Directly comparable in member-funded, multi-type library cooperative model.
• Boston Library Consortium: Northeastern US library consortium focused on academic and research libraries with shared collections access and resource sharing. Comparable consortium-based model serving multiple library types, though skews academic.
• Orbis Cascade Alliance: Pacific Northwest library consortium of 40+ academic and research libraries offering shared infrastructure and resource sharing. A larger-scale example of the same consortium-plus-shared-catalog model C/W MARS operates.
• MOBIUS (Missouri library consortium): Missouri multi-type library consortium providing shared ILS, resource sharing, and courier services to nearly 200 member libraries. The closest national analog in scale and multi-type library membership.
• Bibliomation: Connecticut library consortium providing shared ILS and technology services to public and school libraries statewide. Highly comparable model serving a similar member-funded, multi-type library base.

Broad incumbents

• LYRASIS: National nonprofit technology and content services provider serving libraries, archives, museums, and cultural heritage organizations. A broader incumbent offering overlapping infrastructure, digital preservation, and shared services to the same library segment.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about CW Mars