# Mendeley funding: rounds and investors > Mendeley has raised $8.8M across 3 rounds since 2009. Investors include Stefan Glaenzer, Alex Zubillaga and Ambient Sound Investments. Source: https://millionrounds.com/company/mendeley (Millionrounds; every figure on the page links to its filing or article) United Kingdom · [Funded startup](https://millionrounds.com/companies) # Who invested in *Mendeley* 3 rounds we have observed, with the 5 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it. IT Services Funding summary Updated 26 Oct 2026 **$8.8M** raised across 3 rounds since 2009, from 3 sources **$2.0M** Series A **$125K** Grant **$6.7M** Round - **Latest round:** Round, $6.7M Dec 2022 - **Step-up i:** 53.6× - **Investors:** 5 See who backed them ## The funding story Each circle is a round, placed by date and sized by amount. The line above is the running total. 2009 2011 2013 2015 2017 2019 2021 **$2.0M** Series A **$125K** Grant **$6.7M** Round - **First round:** Series A, $2.0M - **Biggest round:** $6.7M - **Usual gap between rounds:** 10.9 years ## The rounds - **Dec 2022** Round **$6.7M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet - **Jan 2012** Grant **$125K** *1 new* [Alfred P. Sloan Foundation](https://millionrounds.com/fund/alfred-p-sloan-foundation) Reported by science20.com - **Feb 2009** Series A **$2.0M** *4 new* [Stefan Glaenzer](https://millionrounds.com/fund/stefan-glaenzer) [Alex Zubillaga](https://millionrounds.com/fund/alex-zubillaga) [Ambient Sound Investments](https://millionrounds.com/fund/ambient-sound-investments) [Andurance Ventures](https://millionrounds.com/fund/andurance-ventures-llp) Reported by techcrunch.com ## Funding filed with regulators Mendeley filed one raise, $6.7M in all. Filings say how much was sold and to how many investors; they never name the investors. - Dec 2022 **$6.7M** UK share allotment ## Who was in which round The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led. **Series A** 2009 **Grant** 2012 **Round** 2022 [Stefan Glaenzer](https://millionrounds.com/fund/stefan-glaenzer) [Alex Zubillaga](https://millionrounds.com/fund/alex-zubillaga) [Ambient Sound Investments](https://millionrounds.com/fund/ambient-sound-investments) [Andurance Ventures](https://millionrounds.com/fund/andurance-ventures-llp) [Alfred P. Sloan Foundation](https://millionrounds.com/fund/alfred-p-sloan-foundation) ## The exit Exit Buyer Price When Acquired Elsevier undisclosed Apr 2013 From historical deal records. Wrong? [Tell us](https://millionrounds.com/corrections?slug=mendeley). ## Everyone who backed them [Stefan Glaenzer](https://millionrounds.com/fund/stefan-glaenzer) VC firm **1** round [Alex Zubillaga](https://millionrounds.com/fund/alex-zubillaga) VC firm **1** round [Ambient Sound Investments](https://millionrounds.com/fund/ambient-sound-investments) Family office **1** round [Andurance Ventures](https://millionrounds.com/fund/andurance-ventures-llp) VC firm **1** round [Alfred P. Sloan Foundation](https://millionrounds.com/fund/alfred-p-sloan-foundation) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=mendeley). ## Quick answers about Mendeley ### Who invested in Mendeley? Mendeley's investors include Stefan Glaenzer, Alex Zubillaga, Ambient Sound Investments, Andurance Ventures and Alfred P. Sloan Foundation. ### How much has Mendeley raised? Mendeley has raised $8.8M across 3 rounds since 2009. ### When did Mendeley last raise? Mendeley's most recent round, $6.7M, was in Dec 2022. ### What was Mendeley's biggest round? Its most recent round, $6.7M in Dec 2022, is also its largest on record. ### Who backed Mendeley first? Mendeley's first round on record, in Feb 2009, was backed by Stefan Glaenzer, Alex Zubillaga and Ambient Sound Investments and 1 others. ### What stage is Mendeley at? Mendeley's latest named round is a Grant, in Jan 2012. ### Where is Mendeley based? Mendeley is based in the United Kingdom. ## Companies like Mendeley In the same sector, and raised in the last eighteen months. [**Atlian** $933K · Oct 2026](https://millionrounds.com/company/atlian)[**Nuuri** $1.1M · Sept 2026](https://millionrounds.com/company/nuuri)[**SmartyPlants** $461K · Sept 2026](https://millionrounds.com/company/smartyplants)[**InTouchNow** $3.1M · Sept 2026](https://millionrounds.com/company/intouchnow)[**Vitaspan** $976K · Sept 2026](https://millionrounds.com/company/vitaspan)[**Universal Quantum** $101M · Sept 2026](https://millionrounds.com/company/universal-quantum) ## Find investors like these Search every investor by what they have actually funded, then narrow to your stage and market. Free. Open the investor searchOr these rounds in the app