HAX — Pre-Seed VC Firm ($250K–$1.0M Checks)
HAX is a Pre-Seed venture capital firm based in San Francisco, California investing in Other, Deep Tech, AI / ML. The firm typically writes $250K–$1.0M checks and has 17 portfolio companies in our records.
- Check size
- $250K–$1.0M
- Portfolio
- 17 companies on record
- Partners
- 8 listed
- Stage
- Pre-Seed
- Sectors
- Other, Deep Tech, AI / ML, Climate / Energy, Healthcare
- HQ
- San Francisco, California
- AUM
- Not in our records
Last verified: 2026-10-05
Pre-Seed
$250K – $1.0M
17+ companies
8 partners
Investment Thesis
HAX is a hands-on pre-seed program for startups at the intersection of science and engineering. It is especially relevant for hardware-enabled manufacturing products that need prototyping, iteration, and embedded technical support.
How HAX invests
HAX is a vc firm based in San Francisco, California. The firm invests at the Pre-Seed stage, with a focus on Other, Deep Tech, AI / ML, Climate / Energy, Healthcare.
HAX typically writes checks of $250K–$1.0M per investment.
Investing since at least 2009, HAX has backed 17 companies in our records, including 5QXT, AIR Corp, AMATEC. Its most recent recorded investment was in 2025, with 2 investments logged over the last 12 months.
Partners & Team
Industry Focus
Invests In
Portfolio Companies (17)
2025
5QXT
Waste-to-value metal extraction from slags and battery waste using low-capex, low-water 'Quantum Extraction' corrosion-based process.
AIR Corp
Autonomous civil infrastructure inspection with combined hardware and software solution
2023
AMATEC
High-speed construction platform
Verdex Technologies
A Revolution In Green Advanced Materials
3DK Tech
Disrupting the additive manufacturing industry.
Algoma
Automating the repeatable delivery of zero-carbon buildings
Altiro Energy
Decarbonizing heat and power generation
2022
Aeromutable
Active response to aerodynamic changes
2019
Allozymes
Fast and affordable enzyme development platform
2018
AiSight
Automating machine diagnostics for manufacturing
- •Raising at Pre-Seed? You're squarely in their sweet spot.
- •Lead with your fit in Other, Deep Tech, AI / ML — the sectors they actively back.
- •Size your ask to their typical $250K – $1.0M check.
- •cold outreach ok
- •Address your outreach to a specific partner, such as Kate Whitcomb, Program Director.
- •A warm introduction beats a cold email. Get matched and request an intro.
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