An open archive of startup postmortems from around the world. Study real failures, understand what went wrong, and learn what not to do.
Pets.com became the poster child of dot-com excess. A famous sock puppet mascot, a Super Bowl ad, and $300M in losses on a business that sold pet food below cost.
Lesson: Selling products below cost is not a business model—it's a donation to customers funded by investors.
Webvan burned through $800 million trying to revolutionize grocery delivery in 1999. Its collapse became the defining cautionary tale of the dot-com bubble.
Lesson: Validate demand before building infrastructure. Scale incrementally, not all at once.
Gawker Media was a digital media pioneer worth hundreds of millions. A single invasion-of-privacy lawsuit, secretly funded by Peter Thiel, drove it into bankruptcy.
Lesson: Know your enemies. Publishing decisions that create personal vendettas with billionaires can destroy your company years later.
Theranos claimed to revolutionize blood testing with a single drop of blood. It raised over $1.4 billion before collapsing in one of the largest fraud cases in startup history.
Lesson: In healthcare, validate your technology with independent third parties before scaling. A prestigious board cannot substitute for working science.
Quibi raised $1.75 billion to create short-form video content for mobile. It shut down after just 6 months, having attracted fewer than 500,000 paying subscribers.
Lesson: Your product must be 10x better than free alternatives to justify a paid subscription. Distribution and sharing features are essential for content platforms.
Juicero raised $118 million to sell a $400 Wi-Fi-connected juicer. It collapsed after Bloomberg showed you could squeeze the juice packets by hand—faster than the machine.
Lesson: Always test your core value proposition against the simplest alternative. If a human hand can do what your machine does, you don't have a product.
Pets.com became the poster child of dot-com excess. A famous sock puppet mascot, a Super Bowl ad, and $300M in losses on a business that sold pet food below cost.
Lesson: Selling products below cost is not a business model—it's a donation to customers funded by investors.
Webvan burned through $800 million trying to revolutionize grocery delivery in 1999. Its collapse became the defining cautionary tale of the dot-com bubble.
Lesson: Validate demand before building infrastructure. Scale incrementally, not all at once.
Gawker Media was a digital media pioneer worth hundreds of millions. A single invasion-of-privacy lawsuit, secretly funded by Peter Thiel, drove it into bankruptcy.
Lesson: Know your enemies. Publishing decisions that create personal vendettas with billionaires can destroy your company years later.
Theranos claimed to revolutionize blood testing with a single drop of blood. It raised over $1.4 billion before collapsing in one of the largest fraud cases in startup history.
Lesson: In healthcare, validate your technology with independent third parties before scaling. A prestigious board cannot substitute for working science.
Skype pioneered internet calling and was acquired by Microsoft for $8.5 billion. It lost dominance to Zoom, WhatsApp, FaceTime, and Slack as Microsoft failed to innovate the product.
Lesson: A dominant position is never permanent. Even companies with massive resources can lose to faster, simpler competitors.
Quibi raised $1.75 billion to create short-form video content for mobile. It shut down after just 6 months, having attracted fewer than 500,000 paying subscribers.
Lesson: Your product must be 10x better than free alternatives to justify a paid subscription. Distribution and sharing features are essential for content platforms.
Juicero raised $118 million to sell a $400 Wi-Fi-connected juicer. It collapsed after Bloomberg showed you could squeeze the juice packets by hand—faster than the machine.
Lesson: Always test your core value proposition against the simplest alternative. If a human hand can do what your machine does, you don't have a product.
Better Place aimed to build a global network of EV battery-swapping stations. It raised $850 million before running out of cash, having sold fewer than 1,500 vehicles.
Lesson: Your business model shouldn't depend on competitors agreeing to cooperate. Infrastructure-heavy businesses need guaranteed demand before you build.
Blippar raised over $130 million to build an augmented reality platform, reaching unicorn status before collapsing under unsustainable cash burn and a failed pivot.
Lesson: A billion-dollar valuation means nothing without revenue to sustain the business.
PledgeMusic was a music crowdfunding platform that raised $23 million. It collapsed in 2019 owing hundreds of artists millions in unpaid campaign funds.
Lesson: Financial platforms must segregate customer funds from operating capital. Trust, once broken, is irreparable.
Nasty Gal went from a one-woman eBay vintage store to a fashion brand with $300M+ revenue. By 2016, it was bankrupt, a victim of hypergrowth and brand identity loss.
Lesson: When scaling, protect the brand DNA that made you successful.
Katerra raised $2 billion from SoftBank to revolutionize construction through vertical integration. It collapsed in 2021, having burned through nearly all its capital.
Lesson: Not every industry can be disrupted with software and capital alone. Deeply physical, local industries require different approaches than digital-native businesses.
Sidecar invented peer-to-peer ride-sharing before Uber and Lyft. Despite being first to market with many features, it lost the war and shut down in 2015.
Lesson: In winner-take-all markets, being first and innovative isn't enough.
Jawbone was once valued at $3 billion and competed with Fitbit for wearable technology dominance. It burned through $930 million before liquidating in 2017.
Lesson: For consumer hardware, quality is the ultimate moat. One bad cycle can be fatal.
Brandless raised $292 million from SoftBank to sell hundreds of products at a single $3 price point. The business model never worked.
Lesson: Pricing should reflect your economics, not your marketing slogan.
Andy Rubin, Android's creator, raised $330 million to launch the Essential Phone. Despite critical acclaim, only 150,000 units were sold.
Lesson: The smartphone market is a graveyard of beautiful hardware that couldn't sell.
MoviePass offered unlimited movie tickets for $9.95/month. At its peak with 3 million subscribers, it was losing money on every single one.
Lesson: If you lose money on every transaction, volume won't save you.
Yik Yak let college students post anonymous messages. It raised $73 million, reached millions of users, then collapsed under cyberbullying and toxicity.
Lesson: Anonymity without robust moderation infrastructure is a recipe for toxicity.
Secret was an anonymous social app that became Silicon Valley's favorite gossip platform. It raised $35M, hit #1 in the App Store, and was dead within 16 months.
Lesson: Returning capital to investors is sometimes the most honorable exit.
Path limited users to 150 friends, promising intimacy in an age of mass social media. It raised $66M but never found enough users to sustain the business.
Lesson: Network effects are nearly impossible to beat with a better product alone.
Fab.com was the fastest-growing e-commerce site of 2011, reaching unicorn status. By 2015, it sold for $15 million after burning through $336 million.
Lesson: High growth funded by unsustainable marketing spend is a ticking time bomb.
Homejoy raised $40M to build a marketplace for home cleaning. It shut down in 2015 after failing to retain customers and facing worker classification lawsuits.
Lesson: A marketplace is only valuable if it solves a persistent problem for both sides.
Shyp raised $62M to make shipping as easy as taking a photo. Despite cult following, unit economics never worked, and it shut down in 2018.
Lesson: Make money on your core transaction. Beautiful design can't fix broken economics.
ScaleFactor raised $100M claiming AI-powered bookkeeping. It collapsed after customers discovered the 'AI' was hundreds of human accountants in Texas.
Lesson: Fake AI is fraud, not a growth hack. In financial services, accuracy is existential.
Beepi aimed to disrupt the used car market with peer-to-peer sales and a 10-day return policy. It burned through $149M before selling for parts.
Lesson: In marketplaces, the take rate must cover the cost of service, or you're just burning investor money.
Sprig built its own kitchens, designed its own menus, and delivered meals in 15 minutes. It raised $56M but couldn't make full-stack food delivery economics work.
Lesson: Controlling the entire value chain multiplies operational complexity.
Munchery delivered chef-prepared meals across the US. It raised $125M but shut down in 2019 after burning through cash with an unsustainable model.
Lesson: The most successful food delivery businesses are platforms, not kitchens.
Ofo was once the world's largest bike-sharing platform with 200M users. It collapsed in 2018, leaving millions unable to get their deposits back.
Lesson: Hardware unit economics must work from day one.
LeEco expanded from streaming into smartphones, TVs, electric cars, and more. The empire collapsed under massive debt, with its founder fleeing to the US.
Lesson: Diversification without competence is destruction. Build one business at a time.
Jabong was India's leading fashion e-commerce platform. After burning through $200M+, it was sold to rival Myntra for just $70 million.
Lesson: E-commerce success in one market doesn't translate automatically to another.
Jolla was born from Nokia's discarded MeeGo OS and raised $100M+ to build an independent mobile operating system. It failed against Android and iOS.
Lesson: Technical superiority means nothing without an ecosystem of apps.
Ve Interactive claimed a $1.5 billion valuation as a UK adtech star. It collapsed into administration in 2017, leaving behind debts and unpaid wages.
Lesson: Real unicorns don't need to self-declare. Market validation comes from external, not internal, sources.
AskMe connected consumers with 100,000+ small businesses. It collapsed when its main investor pulled funding overnight, leaving 4,000 employees stranded.
Lesson: Single-investor dependency is an existential risk. Diversify or become self-sufficient.
Google launched Google+ in 2011 as its answer to Facebook. Despite massive resources and forced integration, it shut down in 2019 with barely a whimper.
Lesson: Creating accounts through force doesn't create engagement. Users must want to be on your platform.
Wonga was once the UK's largest payday lender, processing billions in loans. Regulatory crackdowns and compensation claims drove it into administration in 2018.
Lesson: Regulatory-dependent business models must anticipate regulation tightening, not just exploit current gaps.
Flybe was Europe's largest regional airline, connecting smaller UK and European cities. It collapsed twice—in 2020 and again in 2023—under debt and pandemic pressure.
Lesson: Capital-intensive industries with thin margins don't survive external shocks without massive cash reserves.
Lily Robotics raised $34 million in pre-orders for a throw-and-shoot camera drone. It never delivered a single unit after a viral video was revealed as staged.
Lesson: Staging a demo with a competitor's product is fraud, not marketing. Ship first, promote second.
Moni was a Finnish P2P lending platform that collapsed when borrowers defaulted en masse. It showed the dark side of fintech disruption.
Lesson: Financial innovation without proper risk management is gambling, not disruption.
Take Eat Easy raised €16M to deliver restaurant meals by bicycle across Europe. It collapsed in 2016, crushed by Deliveroo and Uber Eats.
Lesson: Capital-efficient operations are good, but in winner-take-all markets, capital access determines survival.
Grown was an Australian plant-based fast-food chain that expanded too quickly. It collapsed in 2020, having opened too many stores before proving the concept.
Lesson: Never open a second location until the first one is sustainably profitable.
YPlan offered last-minute event tickets in London and New York. It raised $38M, had celebrity backing, and still couldn't build a sustainable business.
Lesson: Low-frequency use cases need very low CAC. If customers transact quarterly, don't spend like they're daily users.
Zeek was an Israeli marketplace for buying and selling unwanted gift cards and coupons. It collapsed amid fraud allegations and mismanagement.
Lesson: Trust is a marketplace's most valuable asset. Spend on fraud prevention before customer acquisition.
SpoonRocket delivered meals for as low as $1 in the Bay Area. It raised $13.5M before realizing you can't build a business on selling dollars for 90 cents.
Lesson: Selling dollars for 90 cents and trying to make it up on volume never works in physical goods.
Maple raised $29M to deliver chef-made meals in NYC. Despite premium branding and David Chang as a partner, it shut down after 2 years.
Lesson: Premium branding is not a substitute for sustainable unit economics.
Peach combined Slack-like commands with social networking. It went viral in January 2016, hit #1 in the App Store, and faded within weeks.
Lesson: A viral launch is not a business. Build retention before chasing virality.
Ello promised an ad-free, privacy-respecting social network as an alternative to Facebook. It raised $5.5M and attracted millions—briefly—before fading.
Lesson: Being 'not Facebook' is marketing, not a business. Build a positive, not a protest.
Formspring let users ask each other anonymous questions. It reached 30M users before anonymity-fueled bullying drove users away and advertisers fled.
Lesson: Some product features are fundamentally unsafe for certain audiences. Design for safety, not just engagement.
Lendy was the UK's largest P2P property lending platform. It collapsed in 2019, with investors losing over £160 million in defaulted property loans.
Lesson: Above-market returns always come with above-market risk. Understand what you're actually lending against.
Fast raised $120M to build one-click checkout for the web. Despite Stripe as a partner, it couldn't find a sustainable business model and shut down in 2022.
Lesson: A feature that large platforms already offer is not a viable standalone business.
Zirtual matched busy professionals with dedicated virtual assistants. It raised $5.5M, grew fast, and then laid off 400 employees with zero notice.
Lesson: People-based businesses have irreducible labor costs. Don't price below cost hoping to figure it out later.
Gome, one of China's largest electronics retailers, tried to launch its own smartphone brand. Despite retail advantage, it flopped within two years against entrenched brands.
Lesson: Owning distribution does not guarantee demand. Brand and product drive purchase decisions.
Relonch built a $500 hardware camera with AI image enhancement—then discovered its real value was in software. By then, it was too late.
Lesson: If it could be an app, make it an app. Hardware adds friction without 10x advantage.
Cake Financial tried to build a social network around investing portfolios. Despite early venture backing, it failed because people don't want to share financial data socially.
Lesson: Not everything should be social. Finance, health, and other private domains resist social features for good reason.
Budge tried to make budgeting social and fun. Users didn't want to compete with friends over who could save more. The company burned through funding and died quietly.
Lesson: What works in fitness doesn't always work in finance. Domains have different psychological profiles for sharing.
Bodega built AI-powered vending machines to replace corner stores. It raised $2.5M before being destroyed by bad branding and public backlash.
Lesson: Brand names have cultural meaning. Test your name with diverse audiences before launch.
Knotel raised $560M to offer flexible office space as a WeWork alternative. It filed for bankruptcy in 2021 after COVID emptied offices.
Lesson: Real estate arbitrage (long liabilities, short assets) only works when demand is constantly rising. Any downturn is catastrophic.
Hyperloop One raised $450M to build Elon Musk's vision of pods traveling at 700mph through vacuum tubes. It shut down in 2023 having built only a test track.
Lesson: Some infrastructure problems require government-scale funding. Not every moonshot is VC-fundable.
Arrivo was founded by an ousted Hyperloop One co-founder to build a different kind of high-speed transport. It raised millions, built nothing, and vanished.
Lesson: Press releases are not progress. Build something real before announcing partnerships.
Convoz let fans send video messages to celebrities and public figures. Despite backing from Chamillionaire, it failed to attract enough users on either side.
Lesson: Don't build a platform that requires celebrities when they already have better channels.
Zeo built a headband-based sleep tracker years before Fitbit and Oura. It raised millions but was too early to the quantified-self market.
Lesson: Timing is everything. Being right about the trend but too early means you die before the trend arrives.
Rupert Murdoch's News Corp spent $30M+ creating The Daily—the first iPad-only newspaper. It launched with fanfare in 2011 and shut down after 22 months.
Lesson: Don't bet your publication on a single device platform. Content needs to go where readers already are.
Quirky let anyone submit product ideas, with the community voting on the best. It raised $185M, partnered with GE, and filed for bankruptcy in 2015.
Lesson: Democratic voting doesn't produce commercially viable products. Real product development needs focused user research.
Color Labs raised $41M pre-launch for a photo-sharing app in 2011. It was dead within a year, becoming the poster child for excessive pre-product funding.
Lesson: Too much money too early removes the discipline of constraints. Launch lean, validate, then raise.
Everpix built a beautiful photo management app that users loved. It raised $2.3M but couldn't secure Series A funding and shut down in 2013.
Lesson: Product love doesn't equal venture-scale growth. Understand what VCs in your space want to see.
Dinnr delivered pre-portioned ingredients with recipes in London. It was one of the earliest meal kit startups but failed to scale before HelloFresh dominated.
Lesson: First-mover advantage means nothing without capital to defend your position.
Hailo was Europe's answer to Uber—an app for hailing licensed taxis. It raised $100M, expanded globally, and died when Uber's subsidies won.
Lesson: Price dominates for most consumers. Ethical practices are important but don't win against massive subsidies.
Powa Technologies claimed a $2.7B valuation for its mobile payment technology. When the numbers were scrutinized, it turned out the business barely existed.
Lesson: Inspect what you invest in. Bank statements, not press releases, reveal the truth.
Kazam built EV charging infrastructure in India. Despite the EV boom, it failed due to regulatory challenges and the slow pace of electric adoption.
Lesson: Infrastructure plays need patient capital and government support. Venture timelines often don't match.
Bitconnect promised 1% daily returns through a 'trading bot.' It was one of the largest cryptocurrency Ponzi schemes in history, collapsing in 2018.
Lesson: If the returns are mathematically impossible, it's a scam. No exceptions.
Yubl raised £30M (theoretically) to build a social network for young people in the UK. It launched in 2016 and was dead by 2017 with almost no users.
Lesson: A new social network needs a breakthrough mechanic, not a slightly better interface.
BlackSquare was a Canadian real estate technology startup that over-expanded before finding product-market fit. It collapsed under the weight of its own ambition.
Lesson: Win one market before expanding. Multi-product strategy needs multi-product resources.
PayTouch built fingerprint-based payment terminals across Europe. It failed because consumers preferred contactless cards and mobile payments.
Lesson: New payment methods face extreme inertia. You must be dramatically better than a credit card tap.
Kiwi Crate built a successful kids' activity subscription. Its attempt to expand into elder care boxes (Kiwicrate for seniors) failed due to fundamentally different user needs.
Lesson: Adjacent ≠ similar. Your expertise in one category doesn't transfer automatically.
Txt Labs was a popular messaging app in Brazil before WhatsApp. It failed to adapt when WhatsApp offered free messaging and leveraged the Facebook ecosystem.
Lesson: Messaging is winner-take-all. Network effects + better product = instant dominance.
Lendico was Germany's answer to Lending Club, bringing P2P lending to Europe. It failed when German regulators tightened rules and banks fought back.
Lesson: Fintech models from one regulatory regime often don't transfer to another. Regulation shapes viability.
DroneCast flew advertising banners behind drones at events. It raised seed funding but crashed when the business model proved too niche and operationally complex.
Lesson: Cool tech demos don't equal venture-scale businesses. Market size matters.
The Social Radio turned Twitter feeds into spoken audio streams. It raised seed funding but failed because nobody wants to hear tweets read aloud.
Lesson: Converting visual content to audio doesn't automatically add value. Understand the medium.
Bubbly let celebrities send voice messages to fans. It raised millions in India but failed when WhatsApp and Instagram added voice features.
Lesson: If your app is just one feature of a major platform, you'll lose when that platform adds it.
Shoply tried to build a social network around shopping in Australia. It failed because social + shopping = Pinterest, and that market was already taken.
Lesson: Regional social networks only win where local context is everything and global players can't adapt.
Yumly was a promising meal planning and recipe app. Despite a polished product, it failed because free recipe sites dominated and premium conversions were minimal.
Lesson: Monetizing commodity content is extremely difficult. Free alternatives set the price ceiling at $0.
Trigg made smart jewelry—beautiful bracelets with hidden panic buttons that alerted emergency contacts. The product was elegant but too niche to survive.
Lesson: Combining two product categories doesn't double your market—it often quarters it.
FoodChéri delivered chef-prepared meals in Paris. It raised millions, partnered with top chefs, but couldn't escape the full-stack food delivery margin trap.
Lesson: When the same model fails across multiple countries, believe the pattern, not your exceptionalism.
Pearla built an AI-powered language learning app that gave personalized feedback. Despite solid technology, it lost to Duolingo's free, gamified approach.
Lesson: In consumer apps, engagement and habit-building beat technical sophistication every time.
CryptoChange was a Brazilian cryptocurrency exchange that suddenly went offline in 2019. Users' funds vanished, and the founders were never located.
Lesson: Unregulated exchanges are trust-based businesses where trust can evaporate instantly.
MegaBox was a Korean video streaming platform with local content advantages. It lost to Netflix when Netflix invested heavily in K-content.
Lesson: Content platforms compete on capital. Local knowledge matters until the global player arrives with 10x more money.
InstaMekan was Turkey's go-to app for sharing venue check-ins and reviews. It died when Instagram added location tagging and Stories.
Lesson: Platform risk: if a major platform can absorb your product with a feature update, assume they will.
Mekanist was a Turkish clone of Foursquare/Swarm for venue discovery. It failed because it offered nothing the global apps didn't already provide in Turkey.
Lesson: Localizing a global concept only works if the global version genuinely underserves the market.
Satorify tried to build an e-commerce platform in Nigeria. It failed because logistics, payments, and trust infrastructure weren't ready for online retail at scale.
Lesson: E-commerce in emerging markets requires building infrastructure, not just software.
Twiga Foods' initial B2C model for direct farmer-to-consumer food sales in Kenya failed. The company survived by pivoting to B2B, but the original vision died.
Lesson: Sometimes the viable business is a pivot away from your original vision. B2B often makes more sense than B2C in emerging market food supply chains.
WhereIsMyTransport mapped informal public transit in African cities. Despite important mission, it couldn't build a sustainable business model from transit data.
Lesson: VC funding requires VC-compatible business models. Impact missions need different funding structures.
Carspring tried to become the Carvana of the UK. It raised £5M, sold a few hundred cars, and died—the unit economics of online car sales were far worse than expected.
Lesson: Online car sales need massive scale to justify per-unit costs. Most startups can't reach that scale before running out of money.
MoveButter aimed to disrupt grocery delivery with a curated, premium model. It failed when Amazon, Walmart, and Instacart absorbed the entire market.
Lesson: Grocery e-commerce is won on price, selection, and logistics—not curation.
HomeSwipe was a Chicago-based home cleaning app. It couldn't compete with Handy and TaskRabbit's national scale and brand recognition.
Lesson: Local marketplaces need to scale fast or find an unassailable niche before national players arrive.
NiftyMiles consolidated travel rewards points across programs. It failed because airlines and hotels blocked aggregation and the business model relied on their cooperation.
Lesson: Don't build a business that requires your 'partners' to act against their own interests.
LearnUp trained entry-level job seekers with skills employers said they wanted. It failed because employer promises didn't translate to actual hires.
Lesson: Verbal support from employers is not a commitment. Get signed hiring agreements, not just endorsements.
Payzer built a B2B payments and financing platform. It failed because B2B payment behavior is sticky—companies don't switch processors easily.
Lesson: B2B fintech needs a 10x value proposition to overcome extreme switching costs and institutional inertia.
Trucker Path built a popular app for truck drivers to find parking, fuel, and weigh stations. Its B2C monetization failed; the company survived only by pivoting to B2B freight matching.
Lesson: Users who love your free product won't necessarily pay for it. The viable business may be on the B2B side.
RideScout aggregated all transportation options in one app. It was acquired by Daimler for its technology, and the consumer app was immediately shut down.
Lesson: A financial exit can be a product failure. Users invest in your product too—don't forget them.
Booktrack added synchronized music and sound effects to ebooks. It raised $10M but failed because most readers prefer silence when reading.
Lesson: Reading + music = worse comprehension. Don't add features to experiences that are already perfect.
FreeCharge was India's leading mobile wallet, acquired by Snapdeal for $400M. It was made obsolete when India's UPI made bank-to-bank transfers free and instant.
Lesson: Government infrastructure can destroy private fintech overnight. Watch for policy risk as much as market risk.
Learning from failure is the oldest form of education. Every postmortem on this site represents real people, real money, and real lessons.
Study them. Understand them. Don't repeat them.