Seiji Yamamoto net worth
Quick answer
Seiji Yamamoto's estimated net worth is $10.0M (range $7.0M – $15.0M) as of 2026. Seiji Yamamoto is Founder at PerfectBit, Inc.. PerfectBit, Inc. valuation.
Seiji Yamamoto is Founder at PerfectBit, Inc. (YC P26). Independent Entrepreneurial Check model estimate from public YC data.
At a glance
- Company status: Active
- Region: United States of America
- Industries: B2B
- Team size: 2
- Website: https://perfectbit.ai
Who is Seiji Yamamoto?
Seiji Yamamoto is a founder involved with PerfectBit, Inc. and participated in Y Combinator.
Highlights:
- Y Combinator
- PerfectBit, Inc.
About PerfectBit, Inc.
We create a new kind of data for training AI models. Most LLMs are pre-trained on noisy web-scraped text, but they hallucinate and still fail on tasks that humans find trivial. PerfectBit creates high-quality training data that's correct by construction. We verify against physics simulators, scientific databases, formal proof systems. LLMs, robotics, AI for Science, and more.
FAQ: Seiji Yamamoto net worth and PerfectBit, Inc. valuation
What is Seiji Yamamoto's net worth?
Seiji Yamamoto's estimated net worth is $10.0M (range $7.0M – $15.0M) as of 2026. Seiji Yamamoto is Founder at PerfectBit, Inc.. Entrepreneurial Check publishes an independent model-based estimate from public company and role data. Not verified net worth, and Entrepreneurial Check is not affiliated with Y Combinator or the profiled companies.
What is PerfectBit, Inc. valuation?
PerfectBit, Inc.'s estimated valuation on Entrepreneurial Check is $20.0M. That valuation, or a disclosed round when one is public, is the source for the paper-wealth estimate. Independent model output — not a verified appraisal or official mark.
What is Seiji Yamamoto's role?
Seiji Yamamoto is Founder at PerfectBit, Inc., a Y Combinator-backed startup (batch P26).