128vc
www.128vc.com128vc focuses exclusively on pre-seed, AI-first B2B software companies, particularly in B2B SaaS, Fintech, Automation, and Vertical Software sectors. They seek technical teams with early customers, defined revenue paths, and deep technical depth using AI as a core differentiator.
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See If You're a MatchInvestment Thesis
128vc invests in pre-seed AI B2B software companies where artificial intelligence serves as a core product differentiator rather than merely a feature. The firm believes in backing technical, product-driven teams solving hard business problems through AI-powered solutions built around real customer workflows. Their approach emphasizes immediate support and hands-on resources from the application stage onward, recognizing that value extends far beyond capital deployment.
What Sets Them Apart
- Solo GP structure with fast decision-making and direct access to founder Ignacio Castro (MIT Sloan alum, 25+ years experience in financial services technology)
- Exclusive community of senior AI engineers and scientists for talent acquisition, due diligence, and portfolio support
- Deep global network spanning 15 years across MIT ecosystem and Founder Institute community (21K+ mentors, 5K+ companies)
- Support begins at application stage, not just post-investment
- Institutional-grade operations through partnership with Decile Partners (AI-powered fund administration, legal compliance, risk management)
Stages
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