Sunflower Capital Partners
VC Fund
San Francisco, United States
Sunflower Capital Partners is a VC fund in San Francisco focused on Artificial Intelligence and Software. Sunflower Capital is a venture capital firm specializing in seed stage and early stage investments.
- Total investments:
- 10
- Last investment:
- Lead investor:
- 10%
Last updated:
For AI agents: llms.txt
Industries Sunflower Capital Partners invests in
Stages Sunflower Capital Partners invests in
Countries Sunflower Capital Partners invests in
Round sizes
Round size
- Seed
- $600k–$15M
Investment Focus
Industry
- Artificial Intelligence 4 (40%)
- Software 3 (30%)
- Information Technology 3 (30%)
- Machine Learning 2 (20%)
- SaaS 1 (10%)
Stage
- Seed 8 (80%)
- Pre-Seed 1 (10%)
- Series A 1 (10%)
Country
- United States 7 (70%)
- Czech Republic 1 (10%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Unkey
|
Unkey operates as an open-source API authentication and authorization platform, primarily catering to user-facing APIs. The platform enables developers to create, verify, and manage API keys with low latency. Unkey's services are designed to help developers secure, manage, and scale their APIs. The company also offers an Elixir SDK, providinga simple example of its use. Unkey is also involved in solving API authentication for the next generation of developers. | $4.5M / Seed / Apr 23, 2026 | |
ConductorAI
|
ConductorAI helps the government identify people, policies, and approvals needed within their own agencies to get things done | $15M / Series A / Apr 11, 2025 | |
E2B
|
E2B is constructing the cloud for AI bots a platform and architecture that allows AI bots to operate freely and as first-class citizens. | $11.5M / Seed / Oct 18, 2024 | |
Letta
|
Letta specializes in memory management technology, enabling AI models to remember users and conversations. Its featured products include Hosted Cloud and Lett_ API. Hosted Cloud creates, deploys, and manages agents at scale with Letta Cloud. Also, its Lett_ API adds memory to LLM services to give them reasoning capabilities and transparentlong-term memory powered by MemGPT. | $10M / Seed / Sep 23, 2024 | |
Hemi Labs
|
Hemi (https://hemi.xyz) is a modular protocol that integrates Bitcoin and Ethereum to amplify and extend the core capabilities of the two leading blockchain networks. This offers a novel perspective on blockchain interoperability and scaling by approaching Bitcoin and Ethereum as components of a single supernetwork. The result providessecurity that exceeds that of Bitcoin (“superfinality”) and new levels of blockchain programmability, portability, and potential. Hemi was co-founded by Jeff Garzik (former Bitcoin core developer) and Max Sanchez (inventor of the Proof-of-Proof consensus protocol), and is surrounded by a team of renowned blockchain engineers, strategic partners and investors. | $15M / Seed / Sep 18, 2024 | |
TollBit
|
TollBit is a content monetization platform that allows AI bots and data scrapers to pay websites directly to license their content and protects the health of the entire content ecosystem. | $7M / Seed / Mar 05, 2024 | |
OpenMeter
|
OpenMeter offers to quickly implement usage-based pricing for AI, API, and infrastructure consumptions like logs, Kubernetes, S3, and databases. | $3M / Seed / Mar 05, 2024 | |
|
Unkey
|
Unkey operates as an open-source API authentication and authorization platform, primarily catering to user-facing APIs. The platform enables developers to create, verify, and manage API keys with low latency. Unkey's services are designed to help developers secure, manage, and scale their APIs. The company also offers an Elixir SDK, providinga simple example of its use. Unkey is also involved in solving API authentication for the next generation of developers. | $1.6M / Pre-Seed / Nov 15, 2023 | |
Modelbit
|
Modelbit provides deployment solutions for machine learning models. The platform works with Jupyter and other data science notebooks. It enables users to deploy their model right from the Notebook where they build and trained it. Modelbit also enables users to manage their deployments in production and collaborate on datasets with their team.Thecompany was co-founded by Harry Glaser and Tom O'Neill. | $5M / Seed / May 16, 2023 | |
Inspirit Learning
|
Inspirit is the first and only education solution to combine powerful virtual and augmented reality technology with Stanford research-based instructional practices. Our mission is to empower educators to leverage immersive technology in their own classrooms to create powerful opportunities for learning. Inspirit offers STEM experiences aligned tonational and state standards in mathematics, chemistry, life science, physics, earth science, and biology. | $600K / Seed / Feb 02, 2019 |
Co-Investors
Essence VC
3 deals together
YZi Labs
2 deals together
Abstract
1 deal together
AIX Ventures
1 deal together
Alchemy
1 deal together
Also Capital
1 deal together
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FAQ
What does Sunflower Capital Partners invest in?
Sunflower Capital Partners invests primarily in Artificial Intelligence, Software and Information Technology startups, most often at Seed and Pre-Seed stage. Most of the 10 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 Sunflower Capital Partners's check size?
Sunflower Capital Partners typically joins rounds of $600k–$15M at Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Sunflower Capital Partners participates in.
When did Sunflower Capital Partners last invest?
The most recent investment recorded for Sunflower Capital Partners closed in Apr 2026. Shizune tracks 10 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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