E-resource usage statistics, harvested and analyzed automatically.

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Automated harvesting
COUNTER + 180 non-COUNTER formats
Report templates, powerful analytics
Trusted by leading institutions worldwide

Easy set-up, intuitive interface

"After two cycles of subscription renewals using CELUS to inform decision-making and report usage, we've really appreciated the easy set-up, the intuitive interface, the ease of use, and your responsiveness to questions and suggestions. The site looks good, which is helpful when reporting to management. Thanks, CELUS!"

Cheryl Hamill

Head of Department

South & East Metropolitan Health Services, Australia

Consistently adding useful features

"CELUS has been consistently adding useful features, without the product becoming overly complex to use. Support has been outstanding. Thank you!"

Lauren Marshall

Collections Analyst

John Carroll University

Finally a sustainable solution

"We are pleased that we partnered with CELUS, and now we finally have a sustainable solution for harvesting, uploading, and reporting electronic resources usage data."

Rachel Erb

Director of E-Resources

Florida Virtual Campus

Personable and responsive team

"We love how personable and responsive the CELUS team is. You guys have been an invaluable resource for our library; thank you!"

Annelise H

Library Acquisitions & E-Resources Technician

Westmont College

Permanently-accessible, flexible tools

"CELUS brought us permanently-accessible, extremely flexible tools in terms of granularity, deeper views, selections, and so on. Using the same tools, all individual consortium members can analyse their own statistical data and compare it with anonymized data from other consortium participants. The reaction was immediate, ranging from positive to enthusiastic."

Martin Svoboda

Director

CzechELib Consortium

CELUS is fantastic

"CELUS is fantastic, and I would not want to have to go back to doing my job without it again. It saves an unbelievable amount of time."

CELUS User

Judge

2026 MLA Awards

Makes it very easy

"Kansas State University loves CELUS! CELUS makes it VERY easy for those who do not typically use COUNTER. It's a one-stop for access to all assessment content. It also allows users to compare a single product in more than one package, making it easy to tell which package is getting better use."

Elizabeth Berney

Content Development Librarian for STEM

Kansas State University

Impressed with their support

"We've implemented CELUS several years ago, and we've been impressed with their support during and after implementation along with the product's evolution in performance and capability."

CELUS User

Judge

2026 MLA Awards

Greater control, broader coverage

"By choosing CELUS, libraries gain not only a robust reporting solution but also a dedicated partner in data-driven decision-making. CELUS offers broader platform coverage compared to other usage statistics aggregators, ensuring a more comprehensive analysis of resource usage."

Katy Najafi

Manager

The Australian National University Library

Transformed our data processes

"CELUS delivers on every promise. It has transformed our usage data processes — it's now a joy to work with our usage data. CELUS is a robust, intuitive product that has streamlined and elevated our usage data work. The customer service is amazing!"

CELUS User

Judge

2026 MLA Awards