Bill Tai
Co-Founder @ OneOf
Palo Alto, United States
Bill Tai is a seed investor at OneOf in Palo Alto focused on Software and Information Technology. Bill Tai is based out of Palo Alto, California and is the Co-Founder of OneOf. Bill previously worked at Maxthon International Limited as a Chairman of the Board. Bill Tai attended Harvard Business School.
- Total investments:
- 60
- Last investment:
- Lead investor:
- 12%
Last updated:
For AI agents: llms.txt
Industries Bill Tai invests in
Stages Bill Tai invests in
Countries Bill Tai invests in
Round sizes
Round size
- Seed
- $1.3M–$8M
- Series A
- $500k–$31M
- Series B
- $2M–$105M
Investment Focus
Industry
- Software 9 (15%)
- Information Technology 9 (15%)
- E-Commerce 7 (12%)
- Apps 6 (10%)
- Internet 6 (10%)
Stage
- Seed 27 (45%)
- Series A 11 (18%)
- Series B 7 (12%)
- Series C 4 (7%)
- Angel 3 (5%)
Country
- United States 32 (53%)
- Australia 4 (7%)
- United Kingdom 2 (3%)
- India 1 (2%)
- Canada 1 (2%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Robyn
|
Robyn provides an AI-powered marketing mix modeling platform that helps brands optimize media spend and measure performance. | $5.5M / Seed / Apr 08, 2025 | |
Perle AI
|
Kiva AI is a platform designed to supply high-quality and compliant data solutions at scale to create specialized AI applications in domains such as healthcare, finance, and law. | $7M / Seed / Oct 08, 2024 | |
Fairmatic
|
Fairmatic offers data-driven fleet insurance that rewards safety with savings. Fairmatic uses AI-powered technology in combination with troves of telematics data to create meaningful cost savings for fleets, safer roads, and a profitable business model. Fairmatic helps fleets in proactively managing safety issues with actionable insights. | $46M / Series B / Mar 16, 2023 | |
Faradai
|
As the world races toward mainstream transition to net-zero economy, digitalization and electrification, there is a huge gap in digital product & services to accelerate this transformation. We fill this gap and be the digital core of these transitions, utilizing the AI, IoT and blockchain technologies. we help enterprises to collect, manage andanalyze, share critical energy & sustainability data from facilities. We bridge the gap between the data that businesses have and the valuable insights they need to extract from it. | $2.4M / Seed / Nov 09, 2022 | |
|
Fairmatic
|
Fairmatic offers data-driven fleet insurance that rewards safety with savings. Fairmatic uses AI-powered technology in combination with troves of telematics data to create meaningful cost savings for fleets, safer roads, and a profitable business model. Fairmatic helps fleets in proactively managing safety issues with actionable insights. | $42M / Series A / Aug 31, 2022 | |
MAKO
|
Solving human problems with nature’s surfaces. | $3.9M / Seed / Jun 13, 2022 | |
Fathom
|
An audiovisual recording service that integrates with both Zoom and Google Calendar. | $4.7M / Seed / Jan 24, 2022 | |
Algen Biotechnologies
|
Algen Biotechnologies is a therapeutic discovery company that builds a platform to decode functional gene networks. The company was founded in 2018 and is based in San Francisco, California, United States. | $5.4M / Seed / Aug 31, 2021 | |
Class Technologies
|
Class provides Class for Zoom, which integrates the Class software on the Zoom Meetings platform to help teachers take attendance, hand out assignments, give a quiz or test, grade work, proctor exams, or talk one-on-one with a student. | $105M / Series B / Jul 28, 2021 | |
Archipelo
|
Archipelo develops an intelligent code discovery engine for software developers. Archipelo is the San Francisco, California. | $8M / Seed / Jul 17, 2021 | |
| See all 60 investments → | |||
Co-Investors
About OneOf
OneOf is a platform that focuses on the intersection of music, sports, and lifestyle with blockchain technology. It offers a marketplace for digital collectibles, allowing artists and brands to create and sell NFTs. The platform aims to provide an eco-friendly and user-friendly experience for both creators and collectors.
OneOf Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Adam Fell
Co-Founder & CSO
|
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|
Bill Tai
Co-Founder
|
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Jared Christopherson
Co-Founder
|
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Joshua James
Co-Founder & COO
|
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Lin Dai
CEO & Co-Founder
|
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FAQ
What does Bill Tai invest in?
Bill Tai invests primarily in Software, Information Technology and E-Commerce startups, most often at Seed and Series A stage. Most of the 60 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Bill Tai's check size?
Bill Tai typically joins rounds of $1.3M–$8M at Seed, $500k–$31M at Series A and $2M–$105M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Bill Tai participates in.
When did Bill Tai last invest?
The most recent investment recorded for Bill Tai closed in Apr 2025. Shizune tracks 60 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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