Hochschulbibliothekszentrum

What Hochschulbibliothekszentrum does

Hochschulbibliothekszentrum des Landes Nordrhein-Westfalen (hbz) is a public-law institution (Einrichtung des öffentlichen Rechts) of the German federal state of North Rhine-Westphalia, headquartered in Cologne at Jülicher Straße 6. Founded in 1973 and operating with 51-100 employees, hbz functions as the centralized library service center for all universities and Kunsthochschulen in NRW, delivering shared technology, metadata, and digital infrastructure under the supervision and funding of the Ministerium für Kultur und Wissenschaft des Landes NRW. Its mandate includes serving as the Leihverkehrszentrale (interlibrary-loan center) for the NRW region, and its council (hbz-Rat) comprises representatives from every NRW university, embedding the institution in member governance.

hbz operates a multi-module technology platform organized into five service areas: library management and support (Systeme und Support, Lizenzmanagement, Bibliotheksstatistik); metadata services (Verbunddaten, Normdatenmanagement, lobid-organisations, GND-Reconciliation-Service, Knowledge Bases, Regionalbibliographien); digital collections and preservation (Digitales Archiv NRW, Webarchivierung, Digitalisierung, Landesportal NOAH); portals and interlibrary loan (DigiBib, DigiBib IntrOX, DigiAuskunft, Fernleihe, ELi:SA); and scholarly publishing infrastructure (OJS/OMP hosting, DOI-Konsortium NRW via DataCite, Langzeitverfügbarkeit LZV.nrw, Open Educational Resources including OERSI). The technical backbone includes the hbz-Verbundkatalog (a union catalog spanning more than 125 libraries in NRW and Rhineland-Palatinate), adherence to semantic web and library standards (GND, OAI-PMH, ORCID), and an open-source-first stack anchored on PKP's OJS/OMP. Notable integrations include DataCite, Google Scholar, DOAJ, Scopus, Web of Science, Sherpa/Romeo, and DNB Pflichtexemplar workflows.

hbz is funded by state appropriations and provides its core services free of charge to state-funded NRW universities through cooperative arrangements under the openaccess.nrw Landesinitiative (guaranteed through at least December 31, 2025). The institution does not generate commercial revenue from end users; instead, it monetizes through managed-services budget allocations. Go-to-market is sales-led via direct relationships with university libraries and the hbz-Rat governance structure, with outreach through the SWIB conference, newsletters, GitHub, and the hbz service wiki. Key strategic partnerships include Deutsche Nationalbibliothek (GND infrastructure), TIB - Technische Informationsbibliothek (OERSI), and the openaccess.nrw state initiative. Leadership comprises Dr. Silke Schomburg as Director (Leiterin), with an hbz-Rat Vorstand chaired by Dr. Jochen Johannsen (RWTH Aachen) and deputized by Sabine Boccalini (Universität Siegen).

Name

Hochschulbibliothekszentrum

Legal name

Hochschulbibliothekszentrum des Landes Nordrhein-Westfalen

Website

https://hbz-nrw.de

Company type

Private

Founded year

1973

Operating status

Operating

Headcount range

51–100 employees

Short description

Hochschulbibliothekszentrum des Landes Nordrhein-Westfalen (hbz) is a state-funded public library service center providing metadata, digital archiving, interlibrary loan, Open Access publishing, and DOI services to universities and Kunsthochschulen in North Rhine-Westphalia, Germany.

Ownership category

akta.pro rank

Product category

Library Information Services

NAICS

Libraries and Archives (51921), Libraries and Archives (519210), Web Search Portals, Libraries, Archives, and Other Information Services (5192)

SIC

Services-Management Services (8741), Services-Computer Programming, Data Processing, Etc. (7370)

akta.pro primary industry

Digital Library & Electronic Resources Operations (e-Resources, Repositories, Licensing) (EDAEAGAF)

akta.pro secondary industries

Interlibrary Loan (ILL) & Resource Sharing Operations (EDAEAGAK), Library Collections & Cataloging Services (Acquisitions, Metadata, Circulation) (EDAEAGAE), Library User Services & Information Support (Reference, Research Help, Instruction Support) (EDAEAGAL)

Keywords

• Library management systems
• Digital archiving services
• Interlibrary loan services
• Open access publishing
• Metadata management services

Headquarters

HQ city

Cologne

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Infrastructure, Operations

Revenue model

1. Public Government Funding: hbz is a public law institution funded by the state of North Rhine-Westphalia. Services are provided to universities free of charge or at minimal cost through government funding from the Ministerium für Kultur und Wissenschaft des Landes NRW.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Hochschulbibliothekszentrum des Landes Nordrhein-Westfalen (hbz) operates a centralized library service center providing library management systems, metadata infrastructure, digital collections, interlibrary loan coordination, and Open Access publishing platforms (OJS, OMP) for universities and art academies in North Rhine-Westphalia. The organization serves as the interlibrary loan center (Leihverkehrszentrale) for NRW and hosts the hbz-Verbundkatalog union catalog covering more than 125 libraries across NRW and Rhineland-Palatinate.

Product overview

Hochschulbibliothekszentrum des Landes Nordrhein-Westfalen (hbz) operates a multi-module library technology and information infrastructure platform organized into five service areas. The core of the platform is the hbz-Verbundkatalog (union catalog covering 125+ libraries in NRW and Rhineland-Palatinate), supported by metadata services including lobid-organisations, GND-Reconciliation-Service, OERSI, and Knowledge Bases. The portal layer includes DigiBib (Die Digitale Bibliothek), DigiBib IntrOX, DigiAuskunft, and the Landesportal NOAH, alongside interlibrary loan services (Fernleihe, ELi:SA). For digital collections, hbz provides Digitales Archiv NRW, Webarchivierung, and Digitalisierung von A bis Z. The Open Access infrastructure includes Journals publizieren (OJS hosting), Bücher publizieren (OMP hosting), DOI-Konsortium NRW (DataCite DOI service), and Langzeitverfügbarkeit (LZV.nrw). Supporting services include library management systems and support, Lizenzmanagement, and Bibliotheksstatistik. The platform is governed by the hbz-Rat advisory council and operates as a public institution under the Ministry for Culture and Science of NRW.

Differentiator

Problem solved

Functional benefit

Brands

• hbz-Verbundkatalog: Union catalog operated by hbz, searching across more than 125 libraries from NRW and Rhineland-Palatinate and the North Rhine-Westphalian Bibliography
• DigiBib
• DigiAuskunft
• ELi:SA
• Digitales Archiv NRW
• Landesportal NOAH
• DOI-Konsortium NRW
• Open Journal Systems (OJS) Hosting
• Open Monograph Press (OMP)
• lobid-organisations
• OERSI
• GND-Reconciliation-Service

Products and services

• hbz-Verbundkatalog

Quantifiable outcome

• hbz-Verbundkatalog covers more than 125 libraries across NRW and Rhineland-Palatinate
• +2 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration15 records

Feature8 records

Partnerships

Four partnerships are on record, tiered core.

• Deutsche Nationalbibliothek (DNB)coreStrategic or Co-development Partner · 18 June 2024hbz and DNB jointly develop GND data services. The cooperation includes development of the GND-Reconciliation-Service, the GND-Kooperative website (gnd.network), and use of metadaten.community forum for joint exchange. A Memorandum of Understanding outlines concrete next steps for cooperation.
• TIB - Technische InformationsbibliothekcoreStrategic or Co-development Partner · 10 November 2015hbz and TIB cooperated to build the OERSI (Open Educational Resources Index) search index for higher education teaching. The 5-year development milestone was reached in November 2025.
• openaccess.nrw - LandesinitiativecoreStrategic or Co-development Partnerhbz cooperates within the openaccess.nrw state initiative, receiving funding from the Ministerium für Kultur und Wissenschaft for Open Access services. Services are available free of charge to state-funded NRW universities until at least December 31, 2025.
• Ministerium für Kultur und Wissenschaft des Landes NRWcoreOthershbz operates under the supervision of the NRW Ministry for Culture and Science, which provides funding and regulatory oversight.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Others

• DataCite: DataCite is the DOI registration agency that powers hbz's DOI-Konsortium NRW. It is an ecosystem enabler whose continued operation is critical to hbz's persistent-identifier service.
• Public Library Karlsruhe: While a public library rather than a service center, it represents one of the institutional library users in the broader hbz ecosystem and adjacent cooperative library infrastructure in Germany.

Direct peers

• Bibliotheksverbund Bayern (BVB): BVB operates the union catalog and library infrastructure for academic libraries in Bavaria, offering a directly comparable service portfolio to hbz's union catalog, metadata, and Open Access offerings.
• HeBIS (Hessisches BibliotheksInformationsSystem): HeBIS is the Hessian library information system, providing union catalog and library services for academic libraries in Hesse — a state-level peer with a very similar service mandate to hbz.
• Verbundzentrale des GBV (VZG): VZG is the central service office of the Gemeinsamer Bibliotheksverbund, providing union cataloging, library systems, and Open Access services for libraries in Lower Saxony, Saxony-Anhalt, Thuringia, Hamburg, Bremen, Mecklenburg-Vorpommern, and Schleswig-Holstein — a direct structural peer to hbz.
• Bibliotheksservice-Zentrum Baden-Württemberg (BSZ): BSZ is the regional library service center for Baden-Württemberg, operating a union catalog, library management systems, and Open Access infrastructure — the direct functional counterpart to hbz for universities in another German state.

Broad incumbents

• Deutsche Nationalbibliothek (DNB): DNB is Germany's national library and the operator of the GND authority file. hbz and DNB are MoU-level co-development partners on GND infrastructure, making DNB both an enabling incumbent and a deep collaborator.
• TIB – Leibniz-Informationszentrum Technik und Naturwissenschaften: TIB is a national Leibniz information center for science and technology and a strategic co-development partner of hbz on OERSI. It operates overlapping research-data and Open Access infrastructure with a broader national mandate.

Regional players

• SLUB (Sächsische Landesbibliothek – Staats- und Universitätsbibliothek Dresden): SLUB combines a state library and university library in Saxony with its own digital and Open Access services. It is a regional peer with comparable infrastructure ambitions, though within the GBV rather than the hbz cooperative.

Emerging players

• Open Library of Humanities (OLH): OLH is a Diamond Open Access publisher using OJS infrastructure similar to what hbz hosts. It represents an emerging adjacent player in the Diamond OA space that intersects with hbz's hosting and infrastructure interests.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• GitHubgithub.com/hbz
• Xx.com/hbz_NRW
• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/hochschulbibliothekszentrum-nrw-hbz-

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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