Laura Bordewieck Rippy

Managing Partner, Castor Ventures
Laura Bordewieck Rippy, former CEO of Handango—the first mobile app marketplace—focuses on founders building defensible, one‑of‑a‑kind companies and was named Business Insider’s #1 female seed investor in 2025.
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USA
Laura Bordewieck Rippy
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Generalist
AI
Deeptech / Hardware
Space
Web3 / Crypto
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About Laura Bordewieck Rippy

Before becoming a venture investor, Laura Bordewieck Rippy was CEO of Handango, described as the first mobile app marketplace, and she also co-founded two businesses inside Microsoft as part of a small team spun out of Bill Gates' office—experience that shapes her focus on founders building defensible, one-of-a-kind companies and her view that women who make it through VC's filtering tend to be especially vetted, efficient, and tested. She's been recognized individually for this track record, including being named among Business Insider's best early-stage investors in both 2024 and 2025 and ranked #1 among top female seed investors in 2025, and she stays publicly engaged with founders by hosting conversations on the Tech Optimist podcast, including an interview with Gatik's CEO.

About their Fund

Castor Ventures

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Generalist, AI, Deeptech / Hardware, Space, Web3 / Crypto
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Castor Ventures operates as an MIT-only alumni venture fund that requires investors to be MIT alumni and offers both a fully managed annual fund plus a live syndicate where individual alumni can opt into specific deals with access to internal diligence. The fund applies a strict co-invest-only model targeting 5-15% allocations alongside elite firms like Andreessen Horowitz and Sequoia, while leveraging Alumni Ventures' 850,000+ person network and 1,300+ portfolio companies to provide portfolio support far beyond what typical small alumni funds can offer.

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