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 We are hands-on investors who are fully commited to making your  
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YL Ventures is headed by Managing Partner Yoav Andrew Leitersdorf, Partner John G. Quigley, and Partner Ofer Schreiber, who make all investment decisions. Between us, we have decades of accumulated expertise in early-stage venture capital as well as industry recognition for building, molding and exiting successful technology startups.


Yoav Andrew Leitersdorf

Yoav Andrew Leitersdorf, Managing Partner

Yoav Andrew Leitersdorf has been a successful tech entrepreneur and investor for the past two decades. YL Ventures, which he founded, invests early in core-technology software companies in and around the Internet, and accelerates their evolution via value-added involvement and Silicon Valley-based business development.

Mr. Leitersdorf currently serves on the boards of six YL Ventures portfolio companies: Twistlock (virtual container security), Hexadite (automated cyber incident response), Seculert (cloud-based malware detection), Upstream Commerce (online retail intelligence), BlazeMeter (self-service performance testing cloud) and FireLayers (security, compliance and IT governance for cloud applications and data). Yoav served on the boards of ClickTale (customer experience analytics) until it was mostly exited by YL Ventures, and AcceloWeb (browser experience optimization) until it was acquired by Limelight Networks.

Mr. Leitersdorf was the CEO and cofounder of Movota (mobile gaming) acquired by Bertelsmann, the CTO and cofounder of ExchangePath (online payments) acquired by CMGI, and the CEO and cofounder of PcEntertainer Magazine. Mr. Leitersdorf was also an associate at DFJ Gotham Ventures, studied at IMD, and holds an MBA with honors from Columbia University.

Mr. Leitersdorf's expertise and work has been extensively featured in The Wall Street Journal, Bloomberg Businessweek, Fortune, Wired, TechCrunch, Re/code, VentureBeat, InformationWeek, The Next Web and other publications. He also participates in well-known events including the Code Conference by Re/code and Fortune Brainstorm TECH.

John G. Quigley

John G. Quigley, Partner

John G. Quigley is a longtime principal investor.  As a founder and managing partner of Nassau Capital, established in the mid-90s as the sole manager of the Princeton endowment’s alternative assets, Mr. Quigley has invested across the spectrum of private equity, venture capital, real estate and energy, both in funds and directly.  Nassau Capital’s investment performance during the decade following its launch fueled a period of extraordinary growth by the Princeton endowment.

Mr. Quigley was a partner of one of the pioneering leveraged buyout investment firms during the 1980s.  Thereafter he was co-founder of the merchant banking arm of a major international bank.  He began his career as an attorney with Kirkland & Ellis in Chicago.  Mr. Quigley has served as a director of companies in a wide range of industries, and as an advisory board member of several private equity funds.

Mr. Quigley is a graduate of Georgetown (A.B., summa cum laude), Stanford (J.D., M.B.A.) and Columbia (M.Phil.).  For many years he has taught courses on private equity, venture capital and entrepreneurial finance, most recently at Stanford Law School, and previously at Princeton, Columbia and NYU. 

Ofer Schreiber

Ofer Schreiber, Partner

Ofer Schreiber, Partner at YL Ventures, has broad responsibilities across deal sourcing, investment due diligence and portfolio company value-add. Mr. Schreiber currently serves as a board observer of Twistlock (virtual container security), FireLayers (security, compliance and IT governance for cloud applications and data) and Hexadite (automated cyber incident response).

Mr. Schreiber joined the firm as Analyst in 2009 from IVC Research Center where he spent nearly three years researching and analyzing the technology and venture capital industry. While at IVC, he specialized in the telecommunications, Internet and mobile sectors and also conducted research relating to investment firms.

Mr. Schreiber holds a Bachelor of Laws degree from Tel Aviv University. He served in an elite technological unit of the Intelligence Corps in the Israel Defense Forces.

Iren Reznikov

Iren Reznikov, Analyst

Iren Reznikov, Analyst at YL Ventures, is focused on deal sourcing, investment due diligence and research.

Ms. Reznikov joined the firm from the Israeli Ministry of Finance’s International Affairs Department, where as Analyst of international Economic Policy she specialized in Foreign Direct Investments (FDI) and other macro-economic factors of the Israeli economy. On behalf of the Israeli government, Ms. Reznikov negotiated Free Trade Agreements, Bilateral Investment Treaties and financial protocols with Israel’s trading partners.

In addition, she was an Israel-China Economic Leaders Fellow, working at the Office of the Prime Minister of Israel within the China-Israel Economic Task Force to develop strategic initiatives for the strengthening of Israel’s economic relations with China.

Ms. Reznikov holds a Bachelor of Arts in Philosophy, Economics and Political Science from Hebrew University.

YL Ventures was one of the first to believe in Hexadite and in its potential. Yoav and Ofer have been an invaluable source of support and information as they have taken an active role in the growth of the company, all from strategic advice to marketing campaigns and to most importantly generating leads and connecting Hexadite with top tier CISOs from various verticals. YL Ventures is an amazing partner for startup entrepreneurs!"

Eran Barak
Co-Founder and CEO

Yoav is providing us with unbelievable support. We can’t thank him enough. YL Ventures is a true partner for startup entrepreneurs!"

Doron A. Elgressy
Co-Founder and President

YL Ventures has been an invaluable ally to Seculert at every step of the company's evolution. Yoav shares our vision of Seculert providing the world’s most advanced cloud-based malware detection service. His financial support is obvious: the first dollar invested in the company, more capital each subsequent round and spearheading our securing additional financing at the optimal point thereafter. Beyond that, he provides the type of sage advice, insights and hands-on involvement critical to growing the company to be strategically well-positioned as a leader in this exciting and dynamic market."

Dudi Matot
Co-Founder and CEO

YL Ventures has played a key role in evolving ClickTale to where it is today. This firm will do everything it takes for its startups to succeed. It has opened its broad network of excellent relevant contacts to us, providing us with first-rate access to board members, employees, customers and partners."

Tal Schwartz
Co-Founder and CEO

Yoav's personal commitment to us was strong from investment to exit. He rolled up his sleeves and worked hard for AcceloWeb. He was responsive and efficient – getting back to us quickly, prioritizing our needs at the top."

Ofer Gadish
Co-Founder and CEO