About
Bill Bartee is a private investor, avoids media, operates behind the scenes, and as co‑founder of Southern Cross Venture Partners and founding partner at Blackbird helped build Australia's venture ecosystem.
Invests in
AgTechAI & Machine LearningBiotechClimate TechDeep TechFoodTechHardwareHealthtechQuantum ComputingSpace Tech
Experience
- Main Sequence VenturesManaging Partnercurrent2017 — present
- Universal QuantumSeed Investorcurrent2025 — present
- DiraqSeries A investor and observercurrent2024 — present
- Q-CTRLLead Seed, Series A, Series B investor and Directorcurrent2017 — presentSydney, New South Wales, Australia
- Gilmour Space TechnologiesBoard Observercurrent2018 — present
- Trellis DataSeries A investor and Directorcurrent2020 — present
- Morse MicroSeries A investor and Directorcurrent2017 — present
- Quantum BrillianceSeed investor and Directorcurrent2021 — present
- QuintessenceLabsSeries B investor and Directorcurrent2020 — present
- SunDrive SolarSeries Acurrent2022 — present
- Process StreetSeed Investorcurrent2015 — presentSan Francisco Bay Area
- StartmateMentorcurrent2011 — present
- BarajaSeries A investor and observer2017 — 2025
- CyliteSeries B investor and Director2019 — 2025
- AcceloMember, Board of Directors and Series A investor2014 — 2023
- CSIROCo-facilitator and designer of internal Acceleration program -- consultant2015 — 2020Sydney, Australia
- StartupAUSCo-founder and Member, Board of Directors2013 — 2019Sydney
- Culture AmpSeries A investor2015 — 2018
- Blackbird VenturesCo-founder and Managing Partner2011 — 2017
- University of SydneyExternal Lecturer - Principal Instructor2010 — 2017
Education
- University of Richmond School of LawJuris Doctor
- Old Dominion UniversityBachelor of Science - BS and MBA, Economics and statistics
Skills & more
Mobile Technology9Competitive Analysis34Venture Capital69Entrepreneurship92Business Transformation18Financial Services18Business28Start-ups99
From Bill's professional profile.
Same school
Also attended University of Richmond School of Law4
Also attended Old Dominion University11
Ryan BatraInvestor at Khosla VenturesKaitlin DiDomenicoDirector of Finance, Management Company Operations at Mainsail PartnersLata SettyDeal Team & Limited Partner Advisory Council at How Women InvestAshley KramerRevenue Leader, OpenAI at Stage 2 CapitalAdriane BrownManaging Partner at Flying Fish VenturesDominique HiteExecutive Assistant to the Chief of Environmental and Climate Justice at Bezos Earth Fund
+ 5 more
Shared employers
Also worked at Q-CTRL13
Ben YuInvestor at Sierra VenturesBRITT DANNEMANPrincipal at Alpha EdisonAravind RatnamChief Strategy Office, Q-Ctrl at SeafundLewis PinaultChief Scientist at Airbus VenturesNicole ConnerPartner at Airbus VenturesJoseph MillerInvestor at Morpheus Ventures
+ 7 more
Also worked at Trellis Data2
Also worked at Morse Micro2
Also worked at Cylite1
Deals · 3
Attribution from SEC filings, press coverage, and firm rosters.
Colleagues at Main Sequence Ventures
Alejandra Romero
Associate at Main Sequence Ventures
Alezeia Brown
Investment Manager at Main Sequence Ventures
Alison Deans
Investment Committee at Main Sequence Ventures
Ben Hansky
Senior Legal Counsel at Main Sequence Ventures
Danielle Haj Moussa
Analyst at Main Sequence Ventures
Danielle Haj-Moussa
Associate at Main Sequence Ventures
Elaine Stead
Principal at Main Sequence Ventures
Emerald Scofield
Associate at Main Sequence Ventures

















