Portfolio Companies

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Josef Mandelbaum


Josef co-founded Nili in 2019. Josef leads the firm’s sourcing and origination activities and is responsible for advising portfolio company management teams on strategic initiatives. Prior to founding Nili, Josef was an Executive in Residence at Battery Ventures. Prior to Battery Ventures, Josef was the CEO of Perion where he grew revenue from $29 million to over $300 million increasing EBITDA margins to 15% over 7 years. During his tenure, the company acquired 7 companies and established and/or managed operations in 10 countries (UK, France, Spain, Germany, Italy, Argentina, U.S., Canada, Israel and India). Prior to Perion, Josef was the CEO of American Greetings Digital and Media Division. Over an 11 year tenure, Josef acquired 10 companies and established global operations in 10+ countries, growing revenues from $10 million to $200 million with 20% EBITDA margins. Josef has a BA from Yeshiva University and an MBA from Weatherhead School of Management at Case Western Reserve University.