Evaluating only Mendeley’s profile at its peak — without knowing the outcome — the model ranked Competition as the #1 likely cause. Documented cause: Acquisition gone wrong.
Key Events Timeline
FOUNDING
Victor Henning, Jan Reichelt, and Paul Föckler launch Mendeley in London as research reference manager and collaboration network.
ACQUISITION ATTEMPT
Elsevier acquires Mendeley for $100M; all three founders depart within 24 months of acquisition.
SHUTDOWN
Elsevier sunsets Mendeley Data platform and reduces API access, cutting off third-party integrations built by researchers.
SHUTDOWN
Mendeley Funding feature discontinued; open collaboration tools stripped; product reduced to basic citation manager.
Full Analysis
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Documented cause
Mendeley was acquired by Elsevier for $100M in 2013 and spent the next decade being progressively hollowed out. The original founders — Victor Henning, Jan Reichelt, Paul Föckler — left within two years of acquisition. By 2020, Elsevier had sunset Mendeley Data and reduced investment in the reference manager. In 2022-2023, Elsevier discontinued Mendeley Funding and several API features, effectively killing the open collaboration features that made it valuable to researchers.
Lesson
“Selling to legacy publishing incumbents converts open science tools into controlled, neutered enterprise features.”