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Bowker (US ISBN Agency)

Bowker

The official ISBN agency for publishers located in the United States and its territories. Sells ISBNs singly or in blocks through its Myidentifiers site and registers you as the publisher of every title you assign one to.

Official site

Verified 15 October 2026

Publishing terms

Territories
United States and its territories, including Puerto Rico, Guam, the US Virgin Islands, the Northern Mariana Islands and American Samoa
Fees
  • 1 ISBN — $125.00 one-off
  • 10 ISBNs — $295.00 one-off$29.50 per ISBN.
  • 100 ISBNs — $575.00 one-off
  • 1,000 ISBNs — $1,500.00 one-off

Editorial note

Prices, eligibility and the no-expiry statement read on Bowker's Buy ISBNs page on 2026-10-15. Barcode bundles are sold too but are not recorded. No privacy assessment has been made, so the record does not appear in the Rights & Privacy Index.

Sources

Every factual claim above is drawn from these documents.

  1. Official pricing

    Buy ISBNs

    Bowker

    Accessed 15 October 2026

    Source for package prices, the eligibility statement and the statement that ISBNs never expire.

Related

The rest of the stack

Bowker (US ISBN Agency) covers one part of publishing a book. The author tools directory covers the writing, formatting, cover, email and promotion tools around it.

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