# Sunstone Management

> Sunstone Management is a VC fund backing Software and Health Care. See 134 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Long Beach, United States
- Total investments: 134
- Last investment: Sep 2025
- Lead investor: 6%
- Last fund: Aug 2022
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/company/sunstonemanagement/
- X (Twitter): https://twitter.com/sunstonemgmt
- Website: http://sunstoneinvestment.com

Sunstone Management (“Sunstone”) is a diversified private capital management and investment firm.

## Contacts

5 contacts available for Sunstone Management. Shizune tracks 12 team members at Sunstone Management. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/sunstone-management-inc-067f?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $150k–$6.3M |
| Pre-Seed | $90k–$1.3M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 23 | 17% |
| Health Care | 15 | 11% |
| Artificial Intelligence | 15 | 11% |
| Information Technology | 11 | 8% |
| Biotechnology | 6 | 4% |

143 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Pre-Seed | 58 | 43% |
| Seed | 28 | 21% |
| Funding Round | 7 | 5% |
| Non-equity Assistance | 5 | 4% |
| Series A | 4 | 3% |

11 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 77 | 57% |
| Chile | 1 | 1% |
| Canada | 1 | 1% |
| France | 1 | 1% |
| Germany | 1 | 1% |

7 countries tracked in total.

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| John Keisler | CEO | 12 | https://shizune.co/investors/profile/john-keisler-4c02 |
| Jasmine Jiang | Director of Investment Department | 0 | https://shizune.co/investors/profile/jasmine-jiang-36e0 |
| Jennifer Huang | Marketing & Communications Manager | 0 | https://shizune.co/investors/profile/jennifer-huang-e3f0 |
| Jing Sun | Associate Vice President | 0 | https://shizune.co/investors/profile/jing-sun-ee63 |
| John Shen | Co-Founder | 4 | https://shizune.co/investors/profile/john-shen-ca80 |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Green Wealth Energy Solutions | GreenWealth Energy Solutions is the leading hotel energy management company providing turnkey sustainability solutions for real estate owner |  | Convertible Note | Sep 01, 2025 |  |
| LocalAway | LocalAway is a SaaS platform that uses AI to run influencer campaigns for brands. The company is headquartered in Austin, Texas and was founded in 2021. |  | Pre-Seed | Nov 01, 2023 |  |
| Avisi Technologies | Avisi Technologies develops ophthalmic medical devices using nanotechnology to address vision loss associated with glaucoma and related eye conditions. The company designs implantable solutions such as VisiPlate, an aqueous shunt that regulates intraocular fluid through microchannel structures to help manage eye pressure. Its work combinesmaterials science and ophthalmology to create minimally invasive devices intended for long-term function within the eye. | $6.3M | Seed | Oct 01, 2023 |  |
| Wyvern AI | Wyvern AI is a provider of a machine learning platform for marketplaces to optimize product ranking. The company's API integrates with the product catalog, which optimizes product ranking based on factors such as popularity, relevance, and personalization. In addition, it also provides a framework where users can fine-tune product rankingmodels with custom insights and tailor them to the business. |  | Seed | Oct 01, 2023 |  |
| Docsum | Docsum is a developer of an AI-based platform designed for contract review and negotiation. |  | Seed | Oct 01, 2023 |  |
| Agentive | Agentive helps accountants in audit testing, data extraction and documentation. |  | Pre-Seed | Sep 01, 2023 |  |
| Cair Health | Developer of artificial intelligence powered software designed to automate medical insurance workflows. |  | Seed | Sep 01, 2023 |  |
| Santé Technologies | Operator of a POS business platform intended for liquor stores. |  | Seed | Sep 01, 2023 |  |
| AutoEmber | Developer of a visual design tool intended for making websites. |  | Seed | Sep 01, 2023 |  |
| PointsHound | The best place on the internet to earn TONS of points in your favorite loyalty rewards programs. |  | Seed | Sep 01, 2023 |  |

10 of 134 investments shown.

## Co-investors
- [The Long Beach Accelerator](https://shizune.co/investors/profile/the-long-beach-accelerator) — VC Fund, 17 deals together
- [Lair East Labs](https://shizune.co/investors/profile/lair-east-labs) — VC Fund, 15 deals together
- [Techstars](https://shizune.co/investors/profile/techstars) — VC Fund, 8 deals together
- [Seraph Group](https://shizune.co/investors/profile/seraph-group) — VC Fund, 6 deals together
- [Y Combinator](https://shizune.co/investors/profile/y-combinator) — VC Fund, 6 deals together
- [Applied Ventures](https://shizune.co/investors/profile/applied-ventures) — VC Fund, 4 deals together

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## FAQ

### What does Sunstone Management invest in?

Sunstone Management invests primarily in Software, Health Care and Artificial Intelligence startups, most often at Pre-Seed and Seed stage. Most of the 134 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 Sunstone Management's check size?

Sunstone Management typically joins rounds of $150k–$6.3M at Seed and $90k–$1.3M at Pre-Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Sunstone Management participates in.

### How do I contact Sunstone Management?

Public channels for Sunstone Management 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.

### Who are the partners at Sunstone Management?

The team at Sunstone Management includes John Keisler (CEO), Jasmine Jiang (Director of Investment Department) and Jennifer Huang (Marketing & Communications Manager), among 12 team members tracked by Shizune. The Team section lists each member with their title, investment count and links.

### 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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