Crypto and blockchain
Crypto and blockchain: the closure stories and lessons of 23 startups.
23 startups
ICRYPEX
A crypto exchange that grew through sponsorships and fan tokens, then went into liquidation in 2026
Closed2018 – 2025Bitay
A crypto exchange born as an R&D project at Yıldız Teknopark that issued its own token
Closed2017 – 2025BitTurk
A Turkish exchange that was first to list some altcoins in Turkey and also built blockchain software
Closed2013 – 2024Koinim
A first-generation Turkish bitcoin wallet and trading platform, launched in 2013
Closed2018 – 2024Terraform Labs
The company behind the Terra blockchain, which created the algorithmic stablecoin UST and LUNA
Closed2017 – 2022BlockFi
A $3 billion company offering lending products backed by crypto assets
Closed2017 – 2022Celsius Network
A crypto lending platform that promised depositors returns of up to 17 per cent
Closed2019 – 2022FTX
The crypto exchange that reached a $32 billion valuation and collapsed within days
Closed2018 – 2022Voyager Digital
The crypto broker offering trading and loyalty rewards that lent out its assets
Closed2018 – 2021Coinzo
An İzmir-based platform that ranked among Turkey's five most-used crypto exchanges
Closed2017 – 2021Thodex
The Turkish crypto exchange, founded as Koineks, that went dark overnight in 2021
Closed2017 – 2021Vebitcoin
The Muğla-based crypto platform that halted operations right after Thodex
Closed2017 – 2019Koinex
Once one of India's biggest crypto exchanges, shut down by a banking ban
Closed2013 – 2019QuadrigaCX
The Canadian crypto exchange whose customer funds went missing after its founder died
Closed2013 – 201537coins
A start-up that wanted to give the unbanked millions a bitcoin wallet by text message
Closed2010 – 2014Mt. Gox
The Tokyo exchange that once handled most of the world's bitcoin trading
Closed2024 – 2026Hyli
Proof-powered blockchain company
Closed2012 – 2023LocalBitcoins
Bitcoin startup company based in Helsinki Finland
Closed2013 – 2023Wyre
American crypto payments infrastructure company, 2013-2023
Closed2014 – 2022HashFlare
Crypto and blockchain
Closed2016 – 2017Bitsewa
Nepali bitcoin exchange
Closed2013 – 2016Ghash.io
Bitcoin mining pool
Closed2011 – 2014BitInstant
Bitcoin exchange
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This section is compiled from public sources (Wikidata, news archives and company announcements). Figures are given as they appear in those sources; unknown fields are left blank. If you spot a mistake in an entry, you can send us a correction.