Join Forces with the World’s Leading Libraries and Publishers for Preservation

Affordable and Sustainable - As an independent, tax-exempt 501(c)(3) not-for-profit charitable organization, CLOCKSS is committed to keeping fees affordable, to allow libraries and publishers of all sizes and budgets to participate in CLOCKSS. Low operating costs make it possible to keep this commitment.

To join CLOCKSS or set up a webinar introduction, please contact us at +1 (248) 848 7079 or info@clockss.org

- Libraries Materials Budgets - - Annual Contribution -
Under $1 million $490
$1 - 2 million $650
$2 - 3 million $1,300
$3 - 4 million $1,960
$4 - 5 million $2,610
$5 - 7 million $3,260
$7 - 9 million $4,560
$9 - 11 million $5,870
$11 - 13 million $7,170
$13 - 15 million $8,480
$15 - 20 million $9,775
$20 - 25 million $13,035
Over $25 million $16,300

Consortial discounts are available. Please send email to info@clockss.org.

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Participating Publishers

The 2022 annual contribution below covers e-journals, e-books, and any other archived materials.

- Total Publishing Revenue - - Annual Contribution -
Under $250,000 $244
$250,000 - 500,000 $490
$500,000 - 1 million $1,151
$1 - 5 million $2,303
$5 - 10 million $4,606
$10 - 15 million $6,908
$15 - 20 million $9,201
$20 - 30 million $11,504
$30 - 40 million $13,802
$40 - 50 million $16,104
$50 - 200 million $17,271
Over $200 million $28,785

Modest transactional fees include:

  • Front file ingest for journals is $0.25/article, with no charge for the first 100 articles. Backfiles are $0.15/article, with discounts at high volumes.
  • For books, frontlist ingest is $3.00/book, with no charge for the first 10 books. Backlist books are $2.00, with discounts at high volumes.
  • Archiving a new format with CLOCKSS may also include a setup fee that depends on the nature and complexity of the content.

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