Justin Waldron
Co-Founder and President @ Playco
San Francisco, United States
Justin Waldron is a seed investor at Playco in San Francisco focused on Software and Internet. Justin Waldron is Co-Founder & President of Playco, and previously Co-Founder / EVP of Product of Zynga, the world's largest mobile game company. Zynga IPO'd in 2011 with a $10 billion valuation and over $1b in annual revenue. Justin is an angel investor in Lambda School, Substack, and 60+ other companies. He mentors youngentrepreneurs at The Thiel Foundation's Thiel Fellowship program.
- Total investments:
- 60
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries Justin Waldron invests in
Stages Justin Waldron invests in
Countries Justin Waldron invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $933k–$5.3M
- Pre-Seed
- $50k–$2.1M
- Venture - Series Unknown
- $2M–$20M
Investment Focus
Industry
- Software 13 (22%)
- Internet 8 (13%)
- Gaming 7 (12%)
- Mobile 7 (12%)
- E-Commerce 7 (12%)
Stage
- Seed 49 (82%)
- Pre-Seed 4 (7%)
- Venture - Series Unknown 3 (5%)
- Angel 2 (3%)
- Series A 1 (2%)
Country
- United States 43 (72%)
- Japan 3 (5%)
- Chile 1 (2%)
- India 1 (2%)
- Sweden 1 (2%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Remix is a platform combining AI and mobile gaming, designed to offer on-chain, AI-powered games. | $5M / Seed / Jul 10, 2025 | ||
| Uncharted is a cryptocurrency-based gaming platform helps game developers and companies. | $1.7M / Seed / Apr 22, 2024 | ||
| Proof of Play creates games that are defining for a generation because they essentially give players control and ownership. The company was founded in 2022 and is based in New York, New York, USA. | $33M / Seed / Sep 21, 2023 | ||
| AnotherBall is a blockchain startup that combines entertainment and blockchain. | $2.2M / Angel / May 16, 2023 | ||
| Toku is an all-in-one global solution for token compensation and tax compliance. | $20M / Venture - Series Unknown / Mar 08, 2023 | ||
| Tippsy is an online e-Commerce platform that promotes a modern lifestyle of drinking for Japanese sake. They offer over 200 bottles on the product pages with visual metrics to make choosing sake easy. It also offers monthly subscription service Tippsy Sake Box to provide three mini bottles each month to help you explore distinct differences ofdifferent brews.Tippy changing the perception people may have on sake as exotic but cheap, hang-over producing spirit that they only drink at the restaurant for experience, and making it as sophisticated and deep a culture as wine by democratizing the access to selection and information for any consumers. | $1.6M / Seed / Apr 13, 2022 | ||
| Callback is building a next-generation loyalty platform for independent stores | $1M / Seed / Mar 29, 2022 | ||
| Breakr connects artists and influencers to break new music through the culture. Music influencers can set up profiles, update their music preferences, and create digital campaigns available across all platforms. | $4.2M / Seed / Jul 20, 2021 | ||
| Breakr connects artists and influencers to break new music through the culture. Music influencers can set up profiles, update their music preferences, and create digital campaigns available across all platforms. | $50K / Pre-Seed / Jul 20, 2021 | ||
| Spore develops platform for creators designed to improve their web experience. | $1M / Pre-Seed / Jun 24, 2021 | ||
| See all 60 investments → | |||
Co-Investors
About Playco
Playco is an instant-play gaming company that develops games that billions of people can play together. The company works closely with a vast network of partners from global tech and social media giants to new startups developing innovative technologies.
Playco Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Michael Carter
CEO
|
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Michael Carter
CEO
|
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Alex Churchill
Director Talent Acquisition
|
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Darwin Ling
Investor
|
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Deyan Vitanov
CMO
|
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FAQ
What does Justin Waldron invest in?
Justin Waldron invests primarily in Software, Internet and Gaming startups, most often at Seed and Pre-Seed 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 Justin Waldron's check size?
Justin Waldron typically joins rounds of $933k–$5.3M at Seed, $50k–$2.1M at Pre-Seed and $2M–$20M at Venture - Series Unknown. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Justin Waldron participates in.
How do I contact Justin Waldron?
Public channels for Justin Waldron include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did Justin Waldron last invest?
The most recent investment recorded for Justin Waldron closed in Jul 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 Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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