Education Technology · Profile from Education Technology Research Companion
Busuu Ltd (Busuu)
The Madrid-born, London-based language app that built its brand on "social" learning, where learners correct each other's writing and speaking, raised only ~$12m of venture capital, grew to ~120m claimed registered learners and ~500,000 paying subscribers, and was sold to Chegg in 2021 for ~$436m (€385m) in cash, after which it became a modest-growth part of Chegg's "skilling" business.
At a glance
- Founded
- 2008, Madrid, Spain (launched May 2008)
- Founders
- Bernhard Niesner (Austrian) and Adrian Hilti, who met as MBA students at IE Business School in Madrid (reported)
- Headquarters
- London, UK (since 2012); office in Madrid
- Ownership / structure
- Venture-backed private company (2008–2021); wholly owned subsidiary of Chegg, Inc. (NYSE: CHGG) since January 2022
- Leadership (2026)
- Part of Chegg (CEO Dan Rosensweig, returned October 2025). Karine Allouche named General Manager of Language Learning, Worldwide (February 2026, reported). Co-founder Bernhard Niesner led Busuu after the acquisition; his current role is unclear (verify)
- Segment and buyer
- Consumer language learning for adults (learners pay monthly or annual subscriptions); growing B2B line (Busuu for Business) sold to employers and institutions
- Scale
- ~120m learners registered to date across 160+ countries and ~500,000+ paying subscribers (company claims at the 2021 sale); 12–14 languages; revenue ~$40m (2020, reported), ~$45m (2021, Chegg estimate), ~$48m expected in 2025 (secondhand report, verify)
- Capital raised / valuation / market cap
- ~$11–12m of venture capital over several rounds (2009–2017, database estimates); €3.5m Series A (2012, PROfounders Capital); sold to Chegg for ~$436m (€385m) cash, ~$417m at close plus up to ~$25m deferred to key employees
- Signature moves (incl. failures)
- Social, peer-correction model (2008); Series A and move to London (2012); CUNY efficacy study and "college semester" claim (2016); B2B and live classes (2019–2021); pandemic surge (2020); sale to Chegg (2021); repositioning inside Chegg's "skilling" segment (2025). Failures: never closed the gap with Duolingo or Babbel; much of Chegg's purchase value later written down
7 strategic moves analysed
Each one gets a full strategy file in the companion: context, the decision, the financing, what happened, and the lesson.
2008
Founding and Social Learning Model
Launch
2012
Series A and Move to London
Funding round and relocation
2016
Efficacy Study College Semester Claim
Evidence / marketing (commissioned efficacy research)
2019
Busuu for Business and Live Classes
Launch (B2B line and live human instruction)
2020
Pandemic Surge
Growth / operations (response to COVID-19 demand)
2021
Sale to Chegg
Acquisition (exit by sale to a US public company)
2025
Chegg Skilling Repositioning
Restructuring / B2B pivot