Y-Combinator
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Y Combinator (YC) is an American technology
startup accelerator Startup accelerators, also known as seed accelerators, are fixed-term, cohort-based programs, that include mentorship and educational components and culminate in a public pitch event or demo day. While traditional business incubators are often g ...
launched in March 2005. It has been used to launch more than 3,000 companies, including
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, Cruise,
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PagerDuty PagerDuty is an American cloud computing company specializing in a SaaS incident response platform for IT departments. It has been recognized by ''Forbes'' on its "Cloud 100" as well as the ''USA Today'' list for the top small and mid-sized compa ...
,
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, Stripe and
Twitch Twitch may refer to: Biology * Muscle contraction ** Convulsion, rapid and repeated muscle contraction and relaxation ** Fasciculation, a small, local, involuntary muscle contraction ** Myoclonic twitch, a jerk usually caused by sudden muscle co ...
. The combined valuation of the top YC companies was more than $300 billion by January 2021. The company's accelerator program started in
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and Mountain View, expanded to
San Francisco San Francisco (; Spanish language, Spanish for "Francis of Assisi, Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the List of Ca ...
in 2019, and has been entirely online since the start of the
COVID-19 Coronavirus disease 2019 (COVID-19) is a contagious disease caused by a virus, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The first known case was COVID-19 pandemic in Hubei, identified in Wuhan, China, in December ...
pandemic. ''Forbes'' characterized the company in 2012 as one of the most successful startup accelerators in
Silicon Valley Silicon Valley is a region in Northern California that serves as a global center for high technology and innovation. Located in the southern part of the San Francisco Bay Area, it corresponds roughly to the geographical areas San Mateo County ...
.


History

Y Combinator was founded in 2005 by Paul Graham,
Jessica Livingston Jessica Livingston, born 1971, is an American author and a founding partner of the seed stage venture firm Y Combinator. She also organized Startup School. Previously, she was the VP of marketing at Adams Harkness Financial Group. She has a B. ...
,
Robert Tappan Morris Robert Tappan Morris (born November 8, 1965) is an American computer scientist and entrepreneur. He is best known for creating the Morris worm in 1988, considered the first computer worm on the Internet. Morris was prosecuted for releasing the ...
, and
Trevor Blackwell Trevor Blackwell (born 4 November 1969, in Canada) is a computer programmer, engineer and entrepreneur based in Silicon Valley. Blackwell is a developer of humanoid robots. Dr. Blackwell is the founder and former CEO of Anybots and a partner at ...
. From 2005 to 2008, one program was in
Cambridge, Massachusetts Cambridge ( ) is a city in Middlesex County, Massachusetts, United States. As part of the Boston metropolitan area, the cities population of the 2020 U.S. census was 118,403, making it the fourth most populous city in the state, behind Boston, ...
, and one was in
Mountain View, California Mountain View is a city in Santa Clara County, California, United States. Named for its views of the Santa Cruz Mountains, it has a population of 82,376. Mountain View was integral to the early history and growth of Silicon Valley, and is the ...
. As Y Combinator grew to 40 investments per year, running two programs became too much. In January 2009, Y Combinator announced that the Cambridge program would be closed and all future programs would be in Silicon Valley. In 2009,
Sequoia Capital Sequoia Capital is an American venture capital firm. The firm is headquartered in Menlo Park, California, and specializes in seed stage, early stage, and growth stage investments in private companies across technology sectors. , Sequoia's total a ...
led the $2 million investment round into an entity of Y Combinator to enable it to invest in approximately 60 companies a year. In 2010, Sequoia led an $8.25 million funding round for Y Combinator to further increase the number of startups the company could fund. In 2011,
Yuri Milner Yuri Borisovich (Bentsionovich) Milner (russian: Юрий Борисович (Бенционович) Мильнер; born 11 November 1961) is a Soviet-born Israeli entrepreneur, venture capitalist and physicist. He is a cofounder and former c ...
and SV Angel offered every Y Combinator company a $150,000 convertible note investment. The amount put into each company was changed to $80,000 when Start Fund was renewed. In September 2013, Y Combinator began funding nonprofit organizations that were accepted into the program after testing the concept with
Watsi Watsi, legally Watsi, Inc., is a nonprofit healthcare crowdsourcing platform that enables individual donors to directly fund medical care for individuals in developing countries without access to affordable medical care. Background Watsi was ...
. In 2014,
Sam Altman Samuel H. Altman ( ; born April 22, 1985) is an American entrepreneur, investor, programmer, and blogger. He is the CEO of OpenAI and the former president of Y Combinator. Early life and education Altman grew up in St. Louis, Missouri; his mothe ...
replaced Graham as president of Y Combinator. In 2014, Y Combinator began a new deal for startups, offering $150,000 for 7 percent
equity Equity may refer to: Finance, accounting and ownership * Equity (finance), ownership of assets that have liabilities attached to them ** Stock, equity based on original contributions of cash or other value to a business ** Home equity, the dif ...
. In 2014, Altman announced a partnership with Transcriptic to provide increased support for Y Combinator's growing community of biotech companies. In 2015, he announced a partnership with Bolt and increased support for hardware companies. The YC Fellowship Program was announced in July 2015, with the goal of funding companies at the idea or prototype stage. The first batch of YC Fellowship included 32 companies that received an equity-free grant instead of an investment. In January 2016, Y Combinator changed the fellowship program, with participating companies receiving $20k investment for a 1.5 percent equity stake. The equity stake is structured as a
convertible security A convertible security is a financial instrument whose holder has the right to convert it into another security of the same issuer. Most convertible securities are convertible bonds or preferred stocks that pay regular interest and can be converted ...
that converts into shares only if a company has an
initial public offering An initial public offering (IPO) or stock launch is a public offering in which shares of a company are sold to institutional investors and usually also to retail (individual) investors. An IPO is typically underwritten by one or more investment ...
(IPO), or a funding event or acquisition that values the company at $100 million or more. The fellowship was discontinued in 2017. In 2016, Y Combinator announced that YC partners would visit 11 countries to meet with founders and learn more about how they could be helpful to international startup communities. Those 11 countries were
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Portugal Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of ...
,
Sweden Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on ...
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Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...
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Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...
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Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...
,
Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...
,
Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...
,
Israel Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated ...
, and
India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...
. Former Twitter chief financial officer and chief operating officer Ali Rowghani, who was in charge of the YC Continuity Fund when it began, became CEO of YC Continuity.
Michael Seibel Michael Seibel (born October 7, 1982) is a managing director at Y Combinator and co-founder of two startups – Justin.tv/Twitch and Socialcam. He first joined Y Combinator in 2013, advising hundreds of startups, and has been active in promoting ...
, who co-founded
Justin.tv Justin.tv was a website created by Justin Kan, Emmett Shear, Michael Seibel, and Kyle Vogt in 2007 to allow anyone to broadcast video online. Justin.tv user accounts were called "channels", like those on YouTube, and users were encouraged to br ...
, became CEO of YC Core, the program that
Paul Buchheit Paul T. Buchheit is an American computer engineer and entrepreneur who created Gmail. He developed the original prototype of Google AdSense as part of his work on Gmail. He also suggested Google's former company motto ''Don't be evil'' in a 2000 ...
had run since 2016. In 2017, Y Combinator began Startup School, an online course that released public videos and coached individual startups. More than 1500 startups graduated the program in its first year. In 2018, Y Combinator announced a new batch of startup school. After a software glitch, all 15,000 startups that applied to the program were accepted, only to learn a few hours later that they had been rejected. But the ensuing outcry led Y Combinator to change course again and decided over an official blog to accept all those 15,000 companies. Now, every company is accepted to join YC Startup School without any restrictions. In 2019,
Geoff Ralston Geoff Ralston is the former President of Y Combinator. He was the CEO of La La Media, Inc., developer of Lala, a web browser-based music distribution site. Prior to Lala, Ralston worked for Yahoo!, where he was Vice President of Engineering and Ch ...
replaced Altman as president of Y Combinator. The summer 2020 batch was conducted remotely via
videotelephony Videotelephony, also known as videoconferencing and video teleconferencing, is the two-way or multipoint reception and transmission of audio and video signals by people in different locations for real time communication.McGraw-Hill Concise Ency ...
due to the
COVID-19 pandemic The COVID-19 pandemic, also known as the coronavirus pandemic, is an ongoing global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The novel virus was first identif ...
. In the summer of 2022, Y Combinator intentionally shrunk the number of startups within its accelerator down 40% from 414 companies to 250 companies.


Programs

Y Combinator interviews and selects two or more batches of companies per year. The companies receive total of $500,000
seed money Seed money, sometimes known as seed funding or seed capital, is a form of securities offering in which an investor invests capital in a startup company in exchange for an equity stake or convertible note stake in the company. The term ''seed'' ...
as well as advice, and connections. The companies receive $125,000 on a post-money
safe A safe (also called a strongbox or coffer) is a secure lockable box used for securing valuable objects against theft or fire. A safe is usually a hollow cuboid or cylinder, with one face being removable or hinged to form a door. The body and ...
in return for 7%
equity Equity may refer to: Finance, accounting and ownership * Equity (finance), ownership of assets that have liabilities attached to them ** Stock, equity based on original contributions of cash or other value to a business ** Home equity, the dif ...
and $375,000 on an uncapped safe with a Most Favored Nation (MFN) provision. Non-profits receive $100,000 donation. The program includes "office hours", where startup founders meet individually and group meetings. Founders also participate in weekly dinners where guests from the
Silicon Valley Silicon Valley is a region in Northern California that serves as a global center for high technology and innovation. Located in the southern part of the San Francisco Bay Area, it corresponds roughly to the geographical areas San Mateo County ...
ecosystem (successful entrepreneurs, venture capitalists, etc.) speak to the founders. Y Combinator's motto is "Make Something People Want." The program teaches founders to market their product, team and market, refining their business model, achieving
product/market fit Product/market fit, also known as product-market fit, is the degree to which a product satisfies a strong market demand. Product/market fit has been identified as a first step to building a successful venture in which the company meets early adopt ...
, and scaling the startup into a high growth business, etc. The program ends with Demo Day, where startups present their business and sometimes technology to potential investors. The Y combinator operates an additional program and fund designed to support and invest in startups which have already graduated from the main accelerator program. The YC Growth Program and YC Continuity fund are operated by the same team and focus on helping fast growing startups which are approaching 50 employees, and startups raising their Series B funding of $20 million to $100 million. Y Combinator has introduced additional programs since 2015, including: * In July 2015, Y Combinator introduced the YC Fellowship Program aimed at companies at an earlier stage than the main program. * In October 2015, Y Combinator introduced the YC Continuity Fund. The fund allows Y Combinator to make
pro rata ''Pro rata'' is an adverb or adjective meaning in equal portions or in proportion. The term is used in many legal and economic contexts. The hyphenated spelling ''pro-rata'' for the adjective form is common, as recommended for adjectives by some E ...
investments in their alumni companies with valuations under $300 million. Y Combinator will also consider leading or participating in later stage growth financing rounds for YC companies. * Nonprofit research lab YC Research was announced in October 2015. Researchers are paid as full-time employees and can receive equity in Y Combinator.
OpenAI OpenAI is an artificial intelligence (AI) research laboratory consisting of the for-profit corporation OpenAI LP and its parent company, the non-profit OpenAI Inc. The company conducts research in the field of AI with the stated goal of promo ...
was the first project undertaken by YC Research, and in January 2016 a second study on
basic income Universal basic income (UBI) is a social welfare proposal in which all citizens of a given population regularly receive an unconditional transfer payment, that is, without a means test or need to work. It would be received independently of a ...
was also announced. Another project is research on new cities. Australian quantum physicist
Michael Nielsen Michael Aaron Nielsen (born January 4, 1974) is a quantum physicist, science writer, and computer programming researcher living in San Francisco. Work In 1998, Nielsen received his PhD in physics from the University of New Mexico. In 2004, he wa ...
is a research fellow at YC Research since 2017. * In October 2015, YC introduced YC Research to fund long-term fundamental research. YC President
Sam Altman Samuel H. Altman ( ; born April 22, 1985) is an American entrepreneur, investor, programmer, and blogger. He is the CEO of OpenAI and the former president of Y Combinator. Early life and education Altman grew up in St. Louis, Missouri; his mothe ...
donated $10m. *During 2017–2019, YC launched Startup School, the Series A program, the YC Growth program, Work at a Startup, and YC China. *In March 2019, it was reported that Y Combinator was moving headquarters to San Francisco. As of late 2021, Y Combinator had invested in >3,000 companies, most of which are for-profit. Non-profit organizations can also participate in the main YC program. Few non-profits have been accepted in the last years, among them
Watsi Watsi, legally Watsi, Inc., is a nonprofit healthcare crowdsourcing platform that enables individual donors to directly fund medical care for individuals in developing countries without access to affordable medical care. Background Watsi was ...
,
Women Who Code Women Who Code (WWCode) is an international non-profit organization that provides services for women pursuing technology careers and a job board for companies seeking coding professionals. The company aims to provide an avenue into the technolo ...
, New Story, SIRUM,
Zidisha Zidisha allows people to lend small amounts of money directly to entrepreneurs in developing countries. It is the first peer-to-peer microlending service to link borrowers and lenders across international borders without a local microfinance ins ...
,
80,000 Hours 80,000 Hours is a London-based nonprofit organisation that conducts research on which careers have the largest positive social impact and provides career advice based on that research. It provides this advice on their website and podcast, and ...
, and
Our World in Data Our World in Data (OWID) is a scientific online publication that focuses on large global problems such as poverty, disease, hunger, climate change, war, existential risks, and inequality. It is a project of the Global Change Data Lab, a re ...
.


People

Y Combinator was founded in March 2005 by Paul Graham,
Jessica Livingston Jessica Livingston, born 1971, is an American author and a founding partner of the seed stage venture firm Y Combinator. She also organized Startup School. Previously, she was the VP of marketing at Adams Harkness Financial Group. She has a B. ...
, Robert Morris and
Trevor Blackwell Trevor Blackwell (born 4 November 1969, in Canada) is a computer programmer, engineer and entrepreneur based in Silicon Valley. Blackwell is a developer of humanoid robots. Dr. Blackwell is the founder and former CEO of Anybots and a partner at ...
. In 2010, Kirsty Nathoo joined as an accountant and became CFO in 2012. In early 2010, Harj Taggar joined as an advisor. In September 2010,
Alexis Ohanian Alexis Kerry Ohanian ( hy, Ալեքսիս Քերի Օհանյան; born April 24, 1983) is an American internet entrepreneur and investor. He is best known as the co-founder and executive chairman of the social media site Reddit along with Ste ...
joined. In November 2010,
Paul Buchheit Paul T. Buchheit is an American computer engineer and entrepreneur who created Gmail. He developed the original prototype of Google AdSense as part of his work on Gmail. He also suggested Google's former company motto ''Don't be evil'' in a 2000 ...
and Harj Taggar were named partners. In 2015, Taggar left YC. In January 2011,
Garry Tan Garry Tan (; born 1981) is the founder of Initialized Capital. He previously co-founded Posterous and Posthaven. He was also an early employee at Palantir Technologies, and a partner at Y Combinator. Early life and education Tan was born in 1 ...
joined YC, first as designer-in-residence and later as partner. He left YC in November 2015. Later in 2011,
Aaron Iba Aaron Iba (born June 18, 1983) is an American computer programmer and entrepreneur. He is known for co-authoring Etherpad, co-founding AppJet, and for his work as a partner in Y Combinator. Iba graduated from the Massachusetts Institute of Techno ...
joined as a partner. In February 2014, Sam Altman became president of Y Combinator.
Michael Seibel Michael Seibel (born October 7, 1982) is a managing director at Y Combinator and co-founder of two startups – Justin.tv/Twitch and Socialcam. He first joined Y Combinator in 2013, advising hundreds of startups, and has been active in promoting ...
joined Y Combinator as part-time partner in January 2013 and later became a full-time Partner in 2014. The company includes managing directors, group partners, visiting group partners and team members as listed on its website. In 2018, Y Combinator announced that Lu Qi, a former CEO of
Baidu Baidu, Inc. ( ; , meaning "hundred times") is a Chinese multinational technology company specializing in Internet-related services and products and artificial intelligence (AI), headquartered in Beijing's Haidian District. It is one of the la ...
and
Bing Bing most often refers to: * Bing Crosby (1903–1977), American singer * Microsoft Bing, a web search engine Bing may also refer to: Food and drink * Bing (bread), a Chinese flatbread * Bing (soft drink), a UK brand * Bing cherry, a varie ...
, would join the company as CEO of YC China. Y Combinator announced that Lu left YC in November 2019 and that it had decided not to pursue a program in China. In March 2019, Y Combinator announced its president Sam Altman would be transitioning into a Chairman position to focus more on
OpenAI OpenAI is an artificial intelligence (AI) research laboratory consisting of the for-profit corporation OpenAI LP and its parent company, the non-profit OpenAI Inc. The company conducts research in the field of AI with the stated goal of promo ...
and
Geoff Ralston Geoff Ralston is the former President of Y Combinator. He was the CEO of La La Media, Inc., developer of Lala, a web browser-based music distribution site. Prior to Lala, Ralston worked for Yahoo!, where he was Vice President of Engineering and Ch ...
would be the new president.


Controversies

Y Combinator has been blamed for its encouragement of the
ageism Ageism, also spelled agism, is discrimination against individuals or groups on the basis of their age. The term was coined in 1969 by Robert Neil Butler to describe discrimination against seniors, and patterned on sexism and racism. Butler defi ...
culture in Silicon Valley. Paul Graham said in 2005 that people over 38 lacked the energy to launch startups. It was also at a Y Combinator event, the 2007 Startup School, that
Mark Zuckerberg Mark Elliot Zuckerberg (; born ) is an American business magnate, internet entrepreneur, and philanthropist. He is known for co-founding the social media website Facebook and its parent company Meta Platforms (formerly Facebook, Inc.), o ...
said, "Young people are just smarter". Research on this issue published by ''
Harvard Business Review ''Harvard Business Review'' (''HBR'') is a general management magazine published by Harvard Business Publishing, a wholly owned subsidiary of Harvard University. ''HBR'' is published six times a year and is headquartered in Brighton, Massach ...
'' found Y Combinator's views to be misguided, as the average age of a successful startup founder was found to be 45 years old.


Open Research

The Human Advancement Research Community (HARC) project was set up with the "mission to ensure human wisdom exceeds human power". The project was inspired by a conversation between Sam Altman and
Alan Kay Alan Curtis Kay (born May 17, 1940) published by the Association for Computing Machinery 2012 is an American computer scientist best known for his pioneering work on object-oriented programming and windowing graphical user interface (GUI) d ...
. Its projects include modelling, visualizing and teaching software, as well as programming languages. Members included Alan Kay, Bret Victor, and
Vi Hart Victoria Hart (born 1988), commonly known as Vi Hart (), is an American mathematician and YouTuber. They describe themselves as a "recreational mathemusician" and are well-known for creating mathematical videos on YouTube. Hart founded the virt ...
.
Patrick Scaglia Patrick Scaglia is chairman of the Y Combinator (company), Y Combinator Research's project Human Advancement Research Community (HARC). Before that, he was co-director of Foundry@CITRIS and a Hewlett Packard executive for twelve years. References< ...
was chair of HARC and was listed as an advisor in 2017. YC Research disaffiliated with Y Combinator and now operates as Open Research.


See also

*
Hacker News Hacker News (sometimes abbreviated as HN) is a social news website focusing on computer science and entrepreneurship. It is run by the investment fund and startup incubator Y Combinator. In general, content that can be submitted is defined as "any ...
* List of Y Combinator startups * Entrepreneurs Roundtable Accelerator * Techstars *
500 Startups 500 Global (previously 500 Startups) is an early-stage venture fund and seed accelerator founded in 2010 by Dave McClure and Christine Tsai. The fund admitted a first "class" of twelve startups to its incubator office in Mountain View, California ...
*
HighTechXL HighTechXL is a deep-tech venture builder, located in Eindhoven, the Netherlands. HighTechXL was established in 2014-15 on the High Tech Campus Eindhoven. HighTechXL is supported by the Eindhoven Startup Alliance, a dedicated partnership includin ...


References


External links

*
Wonderful Performance
formerly Y Combinator China {{Authority control Business incubators of the United States Startup accelerators Venture capital firms of the United States Financial services companies based in California Companies based in Mountain View, California Financial services companies established in 2005 2005 establishments in California