Mario Fleck
InvestorPartner at AcNext Capital
Sao Paulo, Brazil
Writes $100K – $5M checks · typically $2.5M
Find your path to Mario
247 people in our graph share verified history with Mario — schools, employers, funds. One of them is your warm intro.
Lourdes Álvarez de ToledounlockedMario: together at Accenture (Andersen Consulting) (2004)
×5Mario: together at Accenture (Andersen Consulting)
Mario: together at Weizmann Institute of Science
×5Mario: together at Pontifícia Universidade Católica do Rio de Janeiro
About
Mario Fleck is a partner at AcNext Capital, where he focuses on venture capital investments in startups across Brazil, the United States, and Israel. He serves as vice chair of the International Board and Assets Committee, as well as a member of the Executive and Management Committees at the Weizmann Institute of Science. His professional interests include Jewish affairs and Israel-related matters.
Experience
- Weizmann Institute of ScienceVice chair International Board, Executive Board, Vice chair Assets committee, Mgment Committeecurrent2025 — presentIsrael
- Weizmann Institute of ScienceInternational Board member, Executive Board Member, Assets committeecurrent2010 — presentIsrael
- AcNext CapitalPartnercurrent2020 — presentSão Paulo, SP
- American Jewish Committee (AJC)Board of Governors membercurrent2008 — presentEstados Unidos
- Rio Bravo Investimentos S.A.Partner and CEO2004 — 2020
- Accenture (Andersen Consulting)country managing partner 1990 / 20041990 — 2004
- Andersen Consultingpartner1986 — 2004
- Andersen ConsultingPresident1976 — 2004
- Andersen ConsultingRetired Partner1976 — 2004
- Andersen Consultingpartner1976 — 2004
- Acenturepartner1981 — 2004
Skills & more
Coaching
From Mario's professional profile.
Colleagues at AcNext Capital
André Cruz
Partner at AcNext Capital
Carlos Pedranzini
Partner at AcNext Capital
Francisco A. Ribeiro
Partner at AcNext Capital
Giancarlo Berry
Partner at AcNext Capital
Heron Abi-Sâmara
Partner at AcNext Capital
Roger Ingold
Partner at AcNext Capital
Steph Ango
Founder at Lumi
Vasco Luce
Partner at AcNext Capital
Network4
André Cruz
Partner at AcNext Capital
Carlos Pedranzini
Partner at AcNext Capital
Francisco A. Ribeiro
Partner at AcNext Capital
Giancarlo Berry
Partner at AcNext Capital
Investors connected to Mario in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Mario Fleck?
- Mario Fleck is a partner at AcNext Capital, where he focuses on venture capital investments in startups across Brazil, the United States, and Israel. He serves as vice chair of the International Board and Assets Committee, as well as a member of the Executive and Management Committees at the Weizmann Institute of Science. His professional interests include Jewish affairs and Israel-related matters.
- Where does Mario Fleck work?
- Mario Fleck is Partner at AcNext Capital.
- What check size does Mario Fleck write?
- Mario Fleck typically writes checks of $100K – $5M.
- Where did Mario Fleck go to school?
- Mario Fleck studied at Pontifícia Universidade Católica do Rio de Janeiro (Ba, Mechanics).
Same school
Also attended Pontifícia Universidade Católica do Rio de Janeiro84
Gabriel FarmeInvestor at Graphene VenturesAbdul LyInvestor at Initialized CapitalAlexandre FlamantPartner at HCVCCarlos Alonso TorrasPartner at FinTech CollectiveEduardo LealSr. Research Analyst at Sands Capital VenturesFelipe MendesDirector of Finance Brazil at Valor Capital Group
+ 78 more
Shared employers
Also worked at Weizmann Institute of Science27
Reut ShemaPartner at aMoonStella PaffenholzSenior Associate at Atlas VentureChris BostickPartner at OCV PartnersNathan YadlinGeneral Partner at Palsar VenturesOmer LernerAssociate at Crescendo Venture PartnersNicole ElenterScientific Explorer at GRIDX
+ 21 more
Also worked at American Jewish Committee (AJC)2
Also worked at Rio Bravo Investimentos S.A.4
Also worked at Accenture (Andersen Consulting)1,073
Mark SusterManaging Partner at Upfront VenturesChris BrittCo-founder & CEO of ChimeViviana FagaGeneral Partner at Felicis VenturesJulie YangVice President at InvestcorpAmira OujiVice President of Platform & Portfolio Success, Rise of the Rest at RevolutionAntonio GrifoniAssociate at P101 Ventures
+ 1,067 more
































