What Is Untapped Capital and How Is Yohei Nakajima Involved?

Untapped Capital is an early-stage venture capital firm based in the US, founded in 2020 and led by Yohei Nakajima and Jessica Jackley. Nakajima is a general partner at the firm, and Untapped is the main vehicle for his venture investing work — the same role he describes on yoheinakajima.com as "VC by Day, Builder by Night." If you are a founder raising an early-stage round, or you want to understand how one VC firm runs itself on AI tooling, this page covers what Untapped is, how Nakajima fits in, and what founders can actually use.

What Untapped Capital is

Untapped Capital is an early-stage venture capital firm founded in 2020 and based in the US. It is led by two general partners: Yohei Nakajima and Jessica Jackley.

The firm is known for two things beyond its stage focus:

• Leveraging AI and automations in how it operates as a firm.
• A "build-in-public" methodology that spans No Code, web3, AI, and beyond.

That methodology is not just marketing language — it describes how the firm builds and shares its internal tooling as it goes, rather than keeping it private.

How Yohei Nakajima is involved

Nakajima is a general partner at Untapped Capital. His background supports that role:

• He has spent 15 years supporting early-stage startups.
• He worked closely with early-stage startups at Techstars and Scrum Ventures, and with global corporations including The Walt Disney Company and Nintendo.
• He was ranked a Top 20 thought leader in the 2023 Data Driven VC Landscape report.
• He has presented on "How to run your VC firm using AI" at events globally, including the a16Z GP-LP Mixer during SF Tech Week.

He describes himself as an innovator, artist, and venture capitalist, and is widely recognized for his "build-in-public" approach — building publicly with the latest technologies to "learn faster, meet founders, and contribute to the ecosystem."

What Untapped actually builds with AI

The firm's AI work is concrete rather than conceptual. Examples of AI tools Untapped leverages include:

The GPT VC Associate is the piece most relevant to founders: you answer its questions, it expands on your answers, and it produces a downloadable investment memo you can keep.

What founders can do with this

If you are preparing for a fundraise, the practical entry point is the AI venture capitalist tool:

1. Go to the GPT VC Associate chat linked from yoheinakajima.com.
2. Practice your startup pitch by answering its questions.
3. Expect it to expand on your answers rather than just record them.
4. Download the resulting investment memo.

The value here is rehearsal and structure: you get a founder-facing simulation of the pitch conversation and a written artifact to review, without needing a warm introduction first.

Where BabyAGI fits

Nakajima's most notable build is BabyAGI (March 2023), described as the first popular open-source autonomous agent with task planning capability. It went viral on Twitter, amassed tens of thousands of GitHub stars, drew dozens of Arxiv citations, and received coverage across major online media globally, along with speaker engagements including the inaugural TED AI in San Francisco.

BabyAGI is a separate project from Untapped Capital, but it is the clearest example of the build-in-public approach the firm is known for — and it is part of why Nakajima's profile as a builder and as a VC are hard to separate.

Quick answers

Is Untapped Capital the same as yoheinakajima.com? No. yoheinakajima.com is Nakajima's personal site; Untapped Capital is the venture firm he co-leads, with its own site at untapped.vc.

When was it founded and by whom? Founded in 2020, led by Yohei Nakajima and Jessica Jackley.

What stage does it focus on? Early-stage venture capital.

What makes it different? Its use of AI and automations in firm operations, and its build-in-public methodology across No Code, web3, and AI.