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Mary Ann Liebert, Inc. is a scientific and medical journal publisher that Sage acquired in December 2024. It publishes more than 100 peer-reviewed journals, and those journals keep the Mary Ann Liebert, Inc. name. The name also belongs to a person, the publisher’s founder, which is why searches for “Mary Ann Liebert” return both a company and a biography. This guide covers the publisher: what it is, what it publishes, where its journals now sit online, and how it compares with the platform that now carries them. Facts below come from Sage’s own pages, checked on 29 October 2026.
What Mary Ann Liebert, Inc. is
Mary Ann Liebert, Inc. is a publisher of peer-reviewed journals in science and medicine. According to Sage’s announcement of the acquisition, Mary Ann Liebert launched the company in 1980. The founder and the company share a name, so keep the two apart when reading sources: a biography of Mary Ann Liebert describes the founder, while “Mary Ann Liebert, Inc.” or “Liebert” as a publisher refers to the company and its journals.
On 13 December 2024, Sage announced that it had acquired Mary Ann Liebert, Inc. Sage describes itself as a company founded in 1965 by Sara Miller McCune. The press release states that the journals will continue to be published under the Mary Ann Liebert, Inc. name, and that Sage will also publish some of its own life sciences and medical journals under the Liebert imprint. An imprint is a publisher’s brand name for a set of titles, so the Liebert name survives as a label inside a larger publishing house.
Who runs it and what it covers
Since the acquisition the publisher is part of Sage. Sage’s press release gives the scope as more than 100 peer-reviewed journals across four areas:
- biotechnology and life sciences
- specialized clinical medicine
- public health and policy
- technology and engineering
The release names several titles as examples of that range: Diabetes Technology & Therapeutics, Autism in Adulthood, Advances in Wound Care, AIDS Research & Human Retroviruses, The CRISPR Journal, AI in Precision Oncology and AI in Neuroscience. These are examples from the announcement, not a complete list of the portfolio.
Sage’s librarian information page also names Mary Ann Liebert titles alongside Sage’s own as leading journals in two Web of Science (SCIE) subject categories: “Cell & Tissue Engineering” and “Health Care Sciences & Services.” It supports a statement about subject strength, not a complete list of titles.
Where its journals are found now
The Liebert website that authors and readers once used, home.liebertpub.com, now redirects to Sage Journals (journals.sagepub.com). Its author-information pages redirect there too, and the librarian publication-URL page redirects to Sage’s librarian overview. For the sign-in page, use Sage Journals, which is where those addresses lead.
Mary Ann Liebert, Inc. and Sage Journals compared
| Item | Mary Ann Liebert, Inc. | Sage Journals |
|---|---|---|
| Role | Publisher and imprint, now owned by Sage | Sage’s journals platform and portfolio |
| Journal count (publisher’s own figure) | More than 100 peer-reviewed journals | More than 1,100 peer-reviewed journals |
| Founded | 1980, by Mary Ann Liebert | 1965, by Sara Miller McCune (Sage) |
The two journal counts come from different pages and each is the publisher’s own figure. Do not add them together or treat the Liebert titles as necessarily included in or excluded from Sage’s 1,100.
Strengths and limits
What the sources support
- Specialist focus. The portfolio is concentrated in biomedical, clinical and technology-related fields, with several titles at the edge of new methods, such as The CRISPR Journal.
- Continuity of titles. The journals keep the Mary Ann Liebert, Inc. name after the acquisition, so a citation to a Liebert journal stays a citation to that journal.
What to check journal by journal
- Rankings. Impact factors and quartiles change every year and belong to individual journals, not to the publisher. For how those figures are produced, see how the journal impact factor is calculated.
- Fees. Article processing charges and open access terms are set journal by journal. The page of the journal you are considering is the place for them, and hybrid open access journals explains the model that many subscription journals use.
- Indexing. Whether a journal is indexed in a given database is a fact you check in that database’s own list, as described in journal indexing in DOAJ, Scopus and Web of Science.
If you are deciding where to submit, how to choose a journal sets out the criteria to compare, and peer review defines the review process that “peer-reviewed” refers to.
Frequently asked questions
Who owns Mary Ann Liebert, Inc.?
Sage. Sage announced on 13 December 2024 that it had acquired Mary Ann Liebert, Inc.
Is Mary Ann Liebert a person or a publisher?
Both. Mary Ann Liebert is the person who launched the company in 1980. Mary Ann Liebert, Inc. is the publisher. The two should not be confused in citations.
What does Mary Ann Liebert, Inc. publish?
More than 100 peer-reviewed journals in biotechnology and life sciences, specialized clinical medicine, public health and policy, and technology and engineering, according to Sage’s announcement.
Why does the Liebert website redirect to Sage?
The former Liebert home site and its author pages now redirect to Sage Journals, consistent with the publisher’s journals being part of Sage after the 2024 acquisition.
Did the Liebert journal names change?
The press release says the journals continue under the Mary Ann Liebert, Inc. name, and that Sage will publish some of its own life sciences and medical journals under the Liebert imprint.
Sources
- Sage, Sage acquires the scientific and medical publisher Mary Ann Liebert, Inc. (press release dated 13 December 2024). Checked 29 October 2026.
- Sage, Information for librarians: overview. Checked 29 October 2026.
- Former Liebert site addresses (home.liebertpub.com and its author and librarian pages) redirect to Sage Journals. Checked 29 October 2026.
