Startup Success Rates: VC-Backed vs Bootstrapped (2018-2026 Data)

Roughly 50 million new businesses are created globally each year. About 0.05% of them receive venture capital. The rest figure it out on their own, or they don't figure it out at all. What separates the companies that survive from the ones that shut down has less to do with funding path than most people assume, and more to do with the structural incentives that each path creates.

This page compiles the most reliable data available on startup survival and failure rates across VC-backed, bootstrapped, and accelerator-backed companies. Every figure is traced to a named source. Where primary data is unavailable or contested, that is noted explicitly.

The Headline Numbers

Before getting into the details, here is the summary. These are the most frequently cited data points, each verified against its primary source.

VC-backed startups (Carta, 2018 cohort of 4,369 US companies):

Outcome	Percentage	Count
Shut down	61.9%	2,707
Still operating (private)	32.2%	1,408
Acquired	5.5%	239
Became unicorn ($1B+ valuation)	1.3%	57
Went public (IPO)	0.34%	15

Source: Carta data as reported by SaaStr, January 2025. Cohort is US startups incorporated in 2018 and tracked on Carta's platform.

VC-backed startups (Harvard Business School, Shikhar Ghosh research):

Metric	Finding
Never return cash to investors	75%
Investors lose all money	30-40%
Fail to meet projected ROI	90-95%

Source: HBS Senior Lecturer Shikhar Ghosh, based on 2,000+ companies that raised at least $1M between 2004 and 2010. The study was published in 2012 and remains the most cited academic research on VC-backed startup failure rates.

All US businesses (Bureau of Labor Statistics):

Timeframe	Survival Rate
1 year	~80%
5 years	~50%
10 years	~35%

Source: BLS Establishment Age and Survival Data. Based on the 2013 cohort tracked through 2023: 34.7% of private-sector establishments born in March 2013 were still operating in March 2023.

VC-Backed Startup Failure Rates

The most comprehensive data on VC-backed startup outcomes comes from Carta, which manages cap tables for tens of thousands of private companies. Their 2018 cohort analysis tracked 4,369 US startups from incorporation through January 1, 2025, giving each company at least six years to reach some resolution.

The headline figure is stark: 62% shut down within seven years. But the detail beneath that number matters.

The funding funnel narrows at every stage. Of the 4,369 companies in the 2018 cohort:

• 56.4% raised a Seed round (2,464 companies)
• 36.4% raised a Series A (1,588 companies)
• 14.8% raised a Series B (643 companies)
• 4.4% raised a Series C (194 companies)
• 1.1% raised a Series D or beyond (50 companies)

Each step filters out roughly half or more of the remaining companies. The transition from Seed to Series A is particularly brutal. In the 2018 cohort, 30.6% of companies that raised a Seed round in Q1 2018 reached Series A within two years. For the 2022 cohort, that rate dropped to 15.4%. The funding environment matters enormously.

The failure rate is worse than 62% suggests. The 62% figure counts companies on Carta's platform, which already biases toward companies that have some form of institutional backing or at least formalized their cap table. The true population-level failure rate for all startups attempting the venture path is almost certainly higher.

The bankruptcy spike confirms the trend. Carta reported 254 venture-backed client bankruptcies in Q1 2024, a rate more than seven times higher than the same period in 2019. Between Q1 2023 and Q1 2024, shutdowns increased 58% year-over-year. The primary driver was the 2021-2022 funding boom: companies that raised at elevated valuations during that period could not raise follow-on rounds once the market corrected. Between Q1 2023 and Q1 2024, closures increased by 102% at the seed stage, 61% at Series A, and 133% at Series B. Even pre-boom, growth-at-all-costs funding created structural failure: Zenefits raised $584M and imploded while capital-efficient BambooHR built $274M ARR on $12M in the same market.

Shikhar Ghosh's Harvard Business School research provides a different angle on the same problem. His study of 2,000+ companies that raised at least $1M found that 75% never return cash to investors. The definition of failure matters: if failure means total loss of invested capital, the rate is 30-40%. If failure means falling short of projected returns, it rises to 90-95%. Most VC-backed companies do not produce the returns their business plans promised.

Bootstrapped Startup Survival

Bootstrapped startup data is harder to pin down than VC data, for a simple reason: there is no equivalent of Carta tracking the cap tables of companies that never raised capital. The best available data comes from government business registrations, industry surveys, and SaaS-specific benchmarking.

The BLS baseline. The U.S. Bureau of Labor Statistics tracks all private-sector business establishments. Their data shows roughly 50% of new businesses survive to year five and about 35% survive to year ten. This covers everything from restaurants to law firms to tech startups, so it is not a clean proxy for software startups specifically. But it establishes the general baseline: surviving five years is a coin flip for all businesses.

European data tells a similar story. Eurostat's business demography statistics for the EU show a five-year survival rate of approximately 46% for the 2015 cohort (enterprises born in 2015 still active in 2020). Rates vary widely by country, from 26% in Lithuania to 61% in Sweden. These figures cover all enterprise types, not bootstrapped startups specifically.

SaaS-specific data is more targeted. SaaS Capital's annual survey of over 1,000 private B2B SaaS companies (2025 data) found that 85% of bootstrapped companies are operating at breakeven or are profitable, compared to just 46% of equity-backed companies. Bootstrapped companies spend a median of 95% of ARR across all departments, while equity-backed companies spend 107% of ARR. The efficiency gap is significant: equity-backed companies spend 89% more on sales, 100% more on marketing, 80% more on G&A, and 71% more on R&D to achieve comparable growth.

Growth rates are closer than people think. ChartMogul's SaaS Growth Report, based on over 2,500 SaaS businesses, found that bootstrapped SaaS companies grow at a median rate of 23% annually versus 25% for VC-backed companies. That is a gap of just two percentage points, and the VC-backed companies spend roughly twice as much on customer acquisition to achieve it. The top quartile of bootstrapped companies reaches $1M ARR only four months slower than their VC-backed peers.

A note on the "58% five-year survival" claim. A widely circulated figure claims bootstrapped startups have a 58% five-year survival rate, citing a European longitudinal study of 500+ bootstrapped ventures across 15 EU countries. This figure appears on multiple aggregator sites but traces to a single blog post (blog.mean.ceo) rather than a peer-reviewed publication or government statistical agency. The study's methodology has not been independently verified. Given that Eurostat's own data shows only 46% five-year survival for all EU businesses (not just bootstrapped startups), the 58% claim for a subset of those businesses requires skepticism. We include it here for completeness but flag it as unverified against primary data.

YC: Does the Accelerator Change the Odds?

Y Combinator has funded over 5,600 companies since 2005 and is the most data-rich accelerator in the world. Several independent analyses provide a clearer picture of YC outcomes than exists for almost any other startup cohort.

Series A graduation rate. Garry Tan, YC's president, stated in August 2023 that 45% of YC companies secure Series A funding, with median ARR of $1M+ at that stage. The industry average Series A conversion rate for seed-stage companies is approximately 33%, making YC companies roughly 36% more likely to reach this milestone.

Unicorn rate. Between 4% and 5% of YC companies reach unicorn status ($1B+ valuation), compared to approximately 2.5% for non-YC seed-stage startups. As of 2026, YC's portfolio includes over 80 unicorns from a base of approximately 5,600+ companies.

The power law is extreme. The top four YC companies by public market capitalization (Airbnb, DoorDash, Coinbase, and Instacart) account for over 84% of YC's total public market value, exceeding $200 billion combined. This concentration mirrors the power law that governs venture capital returns more broadly: a tiny number of outlier outcomes drive the vast majority of total value.

Failure rate is lower, but context matters. Jared Heyman of Rebel Fund, which maintains what it describes as the most comprehensive YC database outside of YC itself, found that approximately 20% of YC startups are confirmed inactive. However, over 1,500 of YC's investments were made in the last five years, meaning most companies in the portfolio are too young to have reached resolution. When looking only at the first 17 YC batches (those with 10+ years of history), the inactive rate doubles to approximately 40%.

By the 12-year mark, approximately 88% of YC startups have reached some resolution: either shut down or exited. About 40% of YC startups ultimately achieve an exit (acquisition or IPO).

Is it YC, or is it selection? YC's acceptance rate is approximately 1.5%. Companies that get in are already screened for founder quality, market opportunity, and traction. The improved outcomes for YC companies partially reflect this selection effect rather than the program's value alone. It is impossible to separate the causal impact of YC (the network, mentorship, and Demo Day exposure) from the selection bias (YC picks companies that would have done well anyway) with the available data. Both effects are likely real, but their relative magnitude is unknown.

The Caveat: Why Direct Comparison Is Hard

Comparing bootstrapped and VC-backed survival rates is genuinely misleading without understanding the structural asymmetry between the two populations.

The populations are fundamentally different. A solo founder running a profitable $30K/month SaaS tool counts as "bootstrapped." A pre-revenue biotech company burning $2M/month on clinical trials counts as "VC-backed." Both are real startups, but they face completely different risk profiles, market dynamics, and definitions of success. Comparing their survival rates is like comparing the injury rates of joggers and Formula 1 drivers. The joggers get hurt less often. That does not make jogging a superior racing strategy.

VC-backed companies self-select for risk. Venture capital is designed for companies pursuing large, uncertain outcomes. A company raises VC specifically because it wants to take a high-risk, high-reward approach that requires capital it cannot generate organically. The higher failure rate is not an accident or a flaw in the model. It is the expected consequence of deliberately taking bigger swings.

As Paul O'Brien argues in his critique of bootstrapping survival statistics: "Almost every dataset claiming that bootstrappers outperform VC-backed startups is built on government registration data that classifies any newly formed employer firm as a 'startup.'" A freelancer who incorporates and a team building a network-effects platform both count as new businesses in BLS data. Their failure rates are not meaningfully comparable.

Survivorship in bootstrapping is also misleading. Bootstrapped companies that survive may do so by staying small, pivoting to consulting, or operating as lifestyle businesses. Survival is not the same as growth, scale, or venture-style returns. A bootstrapped company that generates $500K/year indefinitely is a "survivor" in the data. Whether that represents success depends entirely on what the founder was trying to build.

The honest framing. Neither path is objectively better. They optimize for different things:

• VC funding optimizes for maximum scale at the cost of higher failure probability and founder dilution
• Bootstrapping optimizes for founder control and survival at the cost of slower growth and smaller potential outcomes
• Accelerators like YC attempt to improve the odds within the VC path through selection, preparation, and network effects

The data shows clearly that each path has different risk and reward profiles. It does not show that one path is universally superior.

What the Data Actually Tells Founders

Strip away the advocacy (both the "bootstrap everything" crowd and the "raise venture" crowd have incentives to cherry-pick) and the data points toward several conclusions that hold regardless of funding path.

1. Most startups fail, regardless of funding.

The BLS baseline is roughly 50% five-year survival for all businesses. Carta's data shows 62% failure for tracked VC-backed startups within seven years. The failure rate for VC-backed companies that specifically raised at least $1M is 30-40% total loss (Ghosh). No funding path eliminates the base rate of failure.

2. The funding environment changes the odds.

The 2018 Carta cohort saw 30.6% Seed-to-Series A conversion within two years. The 2022 cohort saw 15.4%. The same founders with the same companies face radically different odds depending on when they raise. Market timing is a variable that founders control less than they think.

3. Bootstrapped companies are more capital-efficient, but not faster-growing.

ChartMogul's data shows only a two-percentage-point median growth gap between bootstrapped (23%) and VC-backed (25%) SaaS companies, while VC-backed companies spend roughly double on acquisition. SaaS Capital data shows 85% of bootstrapped companies operating at or near breakeven. The efficiency advantage is real. Whether it translates to better outcomes depends on the market: in winner-take-all categories, efficiency means nothing if a funded competitor captures the market first.

4. Accelerators improve the odds, but selection effects are significant.

YC's 45% Series A rate and 4-5% unicorn rate substantially outperform baselines. But YC accepts approximately 1.5% of applicants. The companies that get in are already filtered for quality. The accelerator amplifies existing potential rather than creating it from scratch.

5. Power law concentration is extreme everywhere.

The top four YC companies represent 84% of total public value. VC returns are driven by a small number of massive outcomes. Bootstrapped success stories like Mailchimp ($12B exit) are equally rare relative to the total bootstrapped population. At the extremes, both paths produce exceptional results. The median outcome in both paths is more modest than the headline stories suggest.

6. Survival is not the same as success.

A company that breaks even indefinitely at $200K/year is a survivor. A company that shuts down after generating $50M in revenue and $10M in founder compensation before running out of runway is a "failure." The definitions matter more than the percentages.

The most useful thing the data can do is calibrate expectations. If you are raising venture capital, know that roughly 60-75% of companies on that path fail to return investor capital. If you are bootstrapping, know that roughly half of all new businesses fail within five years regardless of ambition level. If you are applying to YC, know that even with YC's brand, the majority of companies do not become unicorns.

None of this data tells you what to do. It tells you what to expect.

Frequently Asked Questions

What percentage of startups fail?

The number depends entirely on how you define "startup" and "fail." According to Carta's analysis of 4,369 US companies founded in 2018, 62% had shut down by January 2025. The U.S. Bureau of Labor Statistics reports that roughly 50% of all new businesses fail within five years. For VC-backed startups specifically, Harvard Business School research found that 75% never return cash to investors. These are different populations measured differently, so no single failure rate applies universally.

Do bootstrapped startups really survive longer than VC-backed ones?

The raw numbers suggest higher survival rates for bootstrapped companies. SaaS Capital's 2025 survey of 1,000+ B2B SaaS companies found that 85% of bootstrapped companies operate at or near breakeven, compared to 46% of equity-backed ones. However, the comparison is structurally misleading. VC-backed startups self-select for high-risk, high-ambition strategies. A profitable one-person SaaS tool and a pre-revenue biotech lab both count in their respective categories. Survival rates do not measure the same kind of company.

What are the odds of a startup becoming a unicorn?

Carta data from the 2018 cohort shows 1.3% of tracked startups reached unicorn status ($1B+ valuation). Y Combinator companies fare better at 4-5%, compared to roughly 2.5% for non-YC seed-stage startups. But unicorn status is heavily concentrated: the top four YC companies by market cap (Airbnb, DoorDash, Coinbase, Instacart) account for over 84% of YC's total public market value.

Does Y Combinator actually improve a startup's odds?

The data says yes, but with caveats. YC companies secure Series A funding at a 45% rate versus approximately 33% for non-YC startups. Their unicorn rate of 4-5% is roughly double the baseline for seed-stage companies. However, YC also selects from the top fraction of applicants (roughly 1.5% acceptance rate), so the improved outcomes partially reflect selection rather than treatment. The true causal effect of the program versus the selection effect is impossible to separate cleanly.

How many startups actually receive venture capital funding?

Approximately 0.05% of the roughly 50 million new businesses created globally each year receive venture capital. The vast majority of startups (roughly 78%) are funded through personal savings and self-generated revenue. VC funding is statistically rare, though it receives outsized media attention relative to its actual prevalence.

Are venture-backed startup failures getting worse?

Yes, at least through 2024. Carta reported 254 venture-backed client bankruptcies in Q1 2024, a rate more than seven times higher than in 2019. Between Q1 2023 and Q1 2024, shutdowns increased by 58% year-over-year. The primary driver is startups that raised during the 2021-2022 boom at high valuations, then failed to raise follow-on rounds as the funding environment tightened.