# Gus Tai

> Gus Tai is a Series B investor at Ten Percent Happier (Menlo Park) backing Mobile and Gaming. See 22 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Ten Percent Happier](https://shizune.co/investors/profile/change-collective)
- Location: Menlo Park, United States
- Total investments: 22
- Last investment: Dec 2021
- Lead investor: 32%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/gustai
- X (Twitter): http://twitter.com/gustai
- Website: https://x.com/gustai

Gus Tai is a Series B investor at Ten Percent Happier in Menlo Park focused on Mobile and Gaming. Gus Tai - Venture Partner @ Trinity Ventures

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Mobile | 4 | 18% |
| Gaming | 2 | 9% |
| Internet | 2 | 9% |
| Software | 2 | 9% |
| Enterprise Software | 2 | 9% |

37 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series B | 9 | 41% |
| Series A | 4 | 18% |
| Series C | 3 | 14% |
| Funding Round | 2 | 9% |
| Seed | 1 | 5% |

7 stages tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Cyrus Biotechnology | Cyrus Biotechnology builds software tools to accelerate basic research in biotech, pharma, and industrial biotechnology. Cyrus Bench delivers an enterprise version of the Rosetta molecular modeling and design toolkit, with the associated array of bio-molecular computation tools. It was founded in 2014 and headquartered in Seattle, Washington. | $18M | Series B | Dec 06, 2021 |  |
| Bulletproof | Bulletproof offers products to help people to reach a state of high performance and achieve their full protential, mentally and physically.Bulletproof mission is to help people perform better, think faster, and live better using a proven blend of ancient knowledge and brand new technologies, tempered by research, science, and measured resultsfrom their customers, top athletes, and medical professionals.Their customers know that their supplements, foods, and technologies are the purest you can get anywhere, and you can expect to feel a difference in how you perform the first time you experience them. Environmentally conscious and ethically sourced products build a sustainable foundation for future generations to thrive. | $13M | Venture - Series Unknown | Sep 15, 2020 |  |
| Bulletproof | Bulletproof offers products to help people to reach a state of high performance and achieve their full protential, mentally and physically.Bulletproof mission is to help people perform better, think faster, and live better using a proven blend of ancient knowledge and brand new technologies, tempered by research, science, and measured resultsfrom their customers, top athletes, and medical professionals.Their customers know that their supplements, foods, and technologies are the purest you can get anywhere, and you can expect to feel a difference in how you perform the first time you experience them. Environmentally conscious and ethically sourced products build a sustainable foundation for future generations to thrive. |  | Series C | Jul 30, 2018 |  |
| Ten Percent Happier | Ten Percent Happier is a provider of a meditation platform designed for fidgety skeptics. The company's platform offers expert advice to monitor behavioral changes in a person's life by blending text messages, web content, and short videos that enables users to access a clear a simple approach to meditation.It was founded in 2013 and isheadquartered in Boston, Massachusetts. |  | Seed | Jun 05, 2018 |  |
| Cyrus Biotechnology | Cyrus Biotechnology builds software tools to accelerate basic research in biotech, pharma, and industrial biotechnology. Cyrus Bench delivers an enterprise version of the Rosetta molecular modeling and design toolkit, with the associated array of bio-molecular computation tools. It was founded in 2014 and headquartered in Seattle, Washington. |  | Series A | Jul 27, 2017 |  |
| New Engen | New Engen is revolutionizing the way business acquire new customers. They are relentlessly focused on growing your new customer base. |  | Series A | May 31, 2017 |  |
| Bulletproof | Bulletproof offers products to help people to reach a state of high performance and achieve their full protential, mentally and physically.Bulletproof mission is to help people perform better, think faster, and live better using a proven blend of ancient knowledge and brand new technologies, tempered by research, science, and measured resultsfrom their customers, top athletes, and medical professionals.Their customers know that their supplements, foods, and technologies are the purest you can get anywhere, and you can expect to feel a difference in how you perform the first time you experience them. Environmentally conscious and ethically sourced products build a sustainable foundation for future generations to thrive. |  | Series B | May 24, 2017 |  |
| Bulletproof | Bulletproof offers products to help people to reach a state of high performance and achieve their full protential, mentally and physically.Bulletproof mission is to help people perform better, think faster, and live better using a proven blend of ancient knowledge and brand new technologies, tempered by research, science, and measured resultsfrom their customers, top athletes, and medical professionals.Their customers know that their supplements, foods, and technologies are the purest you can get anywhere, and you can expect to feel a difference in how you perform the first time you experience them. Environmentally conscious and ethically sourced products build a sustainable foundation for future generations to thrive. |  | Series A | Jun 23, 2015 |  |
| Biba | Business Conferencing and Messaging Biba is a free, mobile-first business app that helps people get in touch instantly. We solve basic communication problems that plague people every day. Biba is elegant: it's frictionless, seamless and works across companies and devices. | $15M | Series B | Jun 25, 2013 |  |
| PlayFirst | PlayFirst is the global leader in mobile games for family and friends.PlayFirst develops great mobile games for family and friends, and tens of millions of fans worldwide have played our hit titles. PlayFirst's portfolio of games includes the DASH® series (Diner Dash®, Wedding Dash®, Cooking Dash®, Hotel Dash®, SpongeBob Diner Dash® andHotel Transylvania Dash®) and Stars series (Mall Stars™). | $2M | Convertible Note | Apr 25, 2013 |  |

10 of 22 investments shown.

## Co-investors
- [Rustic Canyon Partners](https://shizune.co/investors/profile/rustic-canyon-partners) — VC Fund, 5 deals together
- [Mayfield Fund](https://shizune.co/investors/profile/mayfield-fund) — VC Fund, 4 deals together
- [DCM Ventures](https://shizune.co/investors/profile/dcm) — VC Fund, 3 deals together
- [Frazier Technology Ventures](https://shizune.co/investors/profile/frazier-technology-ventures) — VC Fund, 3 deals together
- [Accel](https://shizune.co/investors/profile/accel) — VC Fund, 2 deals together
- [CastleHill Ventures](https://shizune.co/investors/profile/castlehill-ventures) — VC Fund, 2 deals together

## About Ten Percent Happier

VC Fund · Boston, United States

Ten Percent Happier is a provider of a meditation platform designed for fidgety skeptics. The company's platform offers expert advice to monitor behavioral changes in a person's life by blending text messages, web content, and short videos that enables users to access a clear a simple approach to meditation.It was founded in 2013 and isheadquartered in Boston, Massachusetts.

5 contacts available at Ten Percent Happier.

| Name | Title | Profile |
| --- | --- | --- |
| Ben Rubin | Co-Founder & CEO | https://shizune.co/investors/profile/ben-rubin-3 |
| Derek Haswell | Co-Founder & VP Product | https://shizune.co/investors/profile/derek-haswell |
| Edwina Clark | Manager, Course Development | https://shizune.co/investors/profile/edwina-clark |
| Gus Tai | Investor | https://shizune.co/investors/profile/gus-tai |
| Jim Forrest | Creative Director | https://shizune.co/investors/profile/jim-forrest |

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## FAQ

### What does Gus Tai invest in?

Gus Tai invests primarily in Mobile, Gaming and Internet startups, most often at Series B and Series A stage. Most of the 22 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Gus Tai last invest?

The most recent investment recorded for Gus Tai closed in Dec 2021. Shizune tracks 22 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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