Prior Completed Investments

A curated view of private market opportunities where Grain Ventures previously secured access and deployed capital. These past investments reflect our sourcing strength, disciplined selectivity, and long term focus on category defining companies.

xAI

Logo of xAI, a private company invested in by Grain Ventures

AI research and deployment company building large-scale foundation models focused on reasoning and real-time intelligence.

SpaceX

Logo of SpaceX, a private company invested in by Grain Ventures

Aerospace and space transportation company vertically integrating launch, satellite broadband, and reusable rocket systems at global scale.

Lyten

Logo of lyten, a private company invested in by Grain Ventures

Advanced materials and energy storage company commercializing lithium-sulfur battery technology to improve performance, cost, and supply-chain resilience.

Neuralink

Logo of Neuralink, a private company invested in by Grain Ventures

Neurotechnology company developing implantable brain-computer interfaces to enable direct communication between the human brain and machines.

OpenAI

Logo of OpenAI, a private company invested in by Grain Ventures

Artificial intelligence research and deployment company advancing frontier models that underpin next-generation software and productivity platforms.

Kalshi

Logo of Kalshi, a private company invested in by Grain Ventures
Regulated prediction market exchange enabling trading on real-world economic and event outcomes through market-implied probabilities.

Signals & Grain

We share selected market signals and investment perspectives as they emerge. Opportunities are introduced selectively and only when conviction, structure, and access align.