John Keisler
CEO @ Sunstone Management
Long Beach, United States
John Keisler is a pre-seed investor at Sunstone Management in Long Beach focused on Software and Internet. John P. Keisler is based out of Irvine, California and is the CEO and Managing Partner of Sunstone Management and Board of Directors of The Center by Lendistry. John previously worked at the City of Long Beach as an Economic Development Director. John P. Keisler attended St. Olaf College.
- Total investments:
- 12
- Last investment:
- Lead investor:
- 17%
Last updated:
For AI agents: llms.txt
Industries John Keisler invests in
Stages John Keisler invests in
Countries John Keisler invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Software 3 (25%)
- Internet 2 (17%)
- Social Network 2 (17%)
- Apps 1 (8%)
- Gaming 1 (8%)
Stage
- Pre-Seed 9 (75%)
- Seed 1 (8%)
- Grant 1 (8%)
- Funding Round 1 (8%)
Country
- United States 11 (92%)
- Germany 1 (8%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Scedugame is a powerful gaming platform that allows gamers to connect with other gamers in a way that has never been done before. | Seed / Jul 21, 2023 | ||
| Podcast ad marketplace for b2b marketing | $150K / Pre-Seed / Jul 20, 2023 | ||
| Practice Axis takes the headache out of intake for mental health private practices with a niche-tailored Client Relationship Manager (CRM). | $500K / Pre-Seed / Jul 20, 2023 | ||
| Operator of an online gifting portal intended to help giftee a selection of gift options based on their hobbies and interests. | Pre-Seed / Jul 20, 2023 | ||
Flute Technologies Inc.
|
Developer of a peer-to-peer drinks sharing application designed to find local drinks dealers and share across a social network. | Pre-Seed / Jul 20, 2023 | |
| Productions.com is a movement that seeks to streamline and diversify employment within the film and television industries, and its website serves as the go-to for finding competent, local crew workers. They are proud to help level the playing field for women and professionals of color, who are underrepresented in the sector, and they supportproduction professionals from all backgrounds. | $150K / Jul 20, 2023 | ||
| AI accelerator chipsets, Machine Learning, AI chips, Semiconductors | Pre-Seed / Oct 12, 2022 | ||
| Equal Time develops technology that helps to track virtual meetings. They provide solutions for coaching, sales, schools, and universities. Their app allows meeting participants to track meeting speaking time, interruptions, monologue, attendance, and participation in meetings. | Pre-Seed / Oct 12, 2022 | ||
| SINC is a software company that creates business solutions for public organizations. They are convinced that effective institutions are necessary for a democratic constitutional state to operate. To ensure that all duties can be completed effectively, they create software just for customers that are properly customized to their needs. | $150K / Pre-Seed / Oct 12, 2022 | ||
| BallBox is revolutionizing the transfer of goods with lockers & logistics. BallBox is the only locker that can be used for package management, product rentals and product distribution. We provide multifamily apartments with best in class package management, while turning what's normally a cost center into an amazing revenue generatingamenity. | Pre-Seed / Oct 12, 2022 | ||
| See all 12 investments → | |||
Co-Investors
About Sunstone Management
Sunstone Management (“Sunstone”) is a diversified private capital management and investment firm.
Sunstone Management Contacts
| Name | Phone | Socials | |
|---|---|---|---|
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John Keisler
CEO
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Jasmine Jiang
Director of Investment Department
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Jennifer Huang
Marketing & Communications Manager
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Jing Sun
Associate Vice President
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John Shen
Co-Founder
|
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FAQ
What does John Keisler invest in?
John Keisler invests primarily in Software, Internet and Social Network startups, most often at Pre-Seed and Seed stage. Most of the 12 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact John Keisler?
Public channels for John Keisler include LinkedIn and Facebook. 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 John Keisler last invest?
The most recent investment recorded for John Keisler closed in Jul 2023. Shizune tracks 12 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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