Bill Bartee is the co-founder and Managing Partner of Main Sequence Ventures. See sector focus, stage focus and contact routes.
Bill Bartee is the co-founder and Managing Partner of Main Sequence Ventures, Asia Pacific’s largest dedicated deep tech venture fund backed by CSIRO, the Australian Federal Government, and private investors including Temasek[7][9]. He previously co-founded Blackbird Ventures, where he served as managing director helping the firm become a leading Australian VC for global internet startups[3][7]. His investment thesis focuses on deep tech companies rooted in scientific breakthroughs, targeting stages from Seed to Series B across sectors like AI, security, health IT, and space[2][5]. Typical check sizes range from $250,000 to $20 million, and he often leads rounds given his firm’s deep tech specialization[5][6]. Notable portfolio companies include Canva, Q-CTRL, Gilmour Space, and Morse Micro, all early-stage deep tech or disruptive internet ventures he invested in[1][8]. Bartee’s distinctive viewpoint centers on leveraging publicly funded research to build global companies, emphasizing the role of national science agencies in venture creation[7][9]. He has shared this perspective in rare public interviews, including a podcast discussing NASA’s influence and his path from research sc
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