Flux Capital backs technical founders from pre-seed through Series A, deploying $250K-$5M into AI, robotics, hard tech, advanced manufacturing, and fintech. Led by Ari Stiegler, we can lead or follow, and we are often the first check in.
Deployed to date
$100M+
Check size
$250K - $5M
Stage
Pre‑Seed to Series A
Investment sectors
We focus where technical depth, industrial execution, and financial infrastructure are likely to reshape the real economy over multi-decade horizons.
AI + Robotics
We back teams where models, perception, and embodied systems compound in the real world—not slide-deck demos. Our AI venture capital lens favors systems that ship, learn from production, and compound through hardware–software feedback loops.
Hard Tech
Hard tech VC, for us, means backing companies where physics, supply chain, and manufacturing risk are first-class problems. We look for founders who can convert lab-grade insight into repeatable production and resilient operations.
Advanced Manufacturing
Advanced manufacturing investors need patience for yield curves, factory learning, and supplier complexity. We partner with founders building industrial automation, precision production, and category-defining equipment that global supply chains actually adopt.
Financialization of Everything
Markets, instruments, and infrastructure are eating the cost of coordination. We invest where fintech, novel market structures, and software-defined trust reshape how capital flows—especially at the intersection of frontier technology and regulated rails.
Start the conversation
Flux Capital is led by Ari Stiegler, founder of TutorMe (acquired), alongside a team focused on early-stage venture capital from pre-seed to Series A. Meet the team.
We value ambition over theater. A clear note, a sharp deck, and evidence of real pull are enough to start.
Apply