in conversation with

sam altman, president of yc

Monday, March 27th 2017 | 6PM

Shoreditch Town Hall

Due to high demand, attendance will be on a first come first serve basis


Y Combinator is the leading Silicon Valley accelerator program, with a mission to “enable the most innovation of any company in the world, in order to make the future great for everyone”. Over the last decade YC has funded over 3,200 founders and 1470 companies, including big tech successes Airbnb, Cruise, Docker, Reddit and Stripe — all-­told, approaching a combined market cap of $100Bn.

Mosaic Ventures is excited to host Sam Altman, President of Y Combinator on Monday March 27th, in conversation with Simon Levene and Toby Coppel. Pitched in large part towards prospective founders, you will learn about Sam’s wide-ranging perspective on the future of tech, and why startups matter to the world.  Hear first-hand about the tech ecosystem: how to form a winning team, develop a great idea, raise money from top tier investors and more.

We will also discuss YC's newly launched online Startup School, as well as pressing issues ranging from the Future of Work, starting non-profits and how tech can potentially Improve Democracy.



Sam Altman

Sam Altman is the President of Y Combinator.  Previously he was cofounder and CEO of Loopt, which was funded by Y Combinator in 2005 and acquired by Green Dot in 2012. At Green Dot, he was the CTO and is now on the Board of Directors. Sam also founded Hydrazine Capital. He studied computer science at Stanford, and while there worked in the AI lab.

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Simon Levene

Simon Levene is a co-founder and partner at Mosaic Ventures, a London-based venture capital firm focused on early stage investing. Simon has been operating and investing in Internet and software-related startups since 1996. He began his career in Silicon Valley co-founding @Home Network’s (later Excite@Home) international business. In 2001, he was recruited to Yahoo! and spent four years as VP Corp Dev. He joined Accel London as a partner in 2006 and led investments in Etsy, Knewton, Seeking Alpha, and MyHeritage. From 2010, both as an angel and with Index Ventures, he’s invested in Fotolia, ResearchGate, Number Four, Shapeways, Squarespace, and Appcard. At Mosaic, Simon is thematically focused on marketplaces, consumer services, SaaS, blockchain, fintech and education. 

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Toby Coppel

Toby Coppel is a co-founder and partner at Mosaic Ventures. Toby has been investing and operating in Internet startups since 1996.  He began his investment career at Allen & Company, before starting his first investment firm. He joined Yahoo!’s new management team in 2001 and spent 6 years as Yahoo!’s Chief Strategy Officer, leading over $5 billion of investments and acquisitions including $1 billion into Alibaba. Since then, both as an angel and alongside Richard Branson and Virgin, he has made investments including 3DRobotics, CreativeLive, Criteo, Hailo, Indiegogo, Pinterest, and Transferwise. At Mosaic, Toby is thematically focused on fintech, blockchain, marketplaces, messaging and health. 

in conversation With Sam Altman - London, 2016

Last year we hosted a fireside chat with Sam hosted by Mosaic partners Simon Levene and Mike Chalfen exploring his interest in “hard tech” sectors including Energy and Synthetic Life. Sam also discusses YC’s strategy and future including the new $700 continuity fund as well as the launch of YC research, a nonprofit research lab (including the famed initiative around universal basic income).

Y Combinator is a startup seed fund based in Mountain View, CA. In 2005, Y Combinator developed a new model of startup funding. Twice a year they invest a small amount of money in a large number of startups. The startups move to Silicon Valley for 3 months, and the YC partners work closely with each company to get them into the best possible shape and refine their pitch to investors. Each batch culminates in Demo Day, when the startups present their companies to a carefully selected audience of investors. Y Combinator has invested in over 1,250 companies including Dropbox, Airbnb, Stripe, Reddit, Instacart and Weebly. The combined market capitalization of YC companies is over $65B.


Mosaic Ventures is a new Silicon Valley­-style venture capital firm based in London, focused on Series A.  We are investing a $140 million fund in founding teams that are fundamentally reshaping big markets.

Our partners have 30+ years of experience investing on both sides of the Atlantic. In that time, we have invested across 10 countries in over 70 companies that together have created about $200 billion of value. We also bring extensive operating experience at leading West Coast startups.

For more background, please read about what we invest in, our values, and the Mosaic story.


Shoreditch Town Hall

380 Old St, London