Clay Fisher
General Partner @ Spark Capital
New York, United States
Clay Fisher is a Series A investor at Spark Capital in New York focused on B2B and Security. Clay Fisher is based out of New York, New York and is the general partner of Spark Capital. Clay previously worked at Allen & Company as a Merchant Banking. Clay Fisher attended the University of Chicago.
- Total investments:
- 6
- Last investment:
- Lead investor:
- 33%
Last updated:
For AI agents: llms.txt
Industries Clay Fisher invests in
Stages Clay Fisher invests in
Countries Clay Fisher invests in
Investment Focus
Industry
- B2B 1 (17%)
- Security 1 (17%)
- Software 1 (17%)
- Insurance 1 (17%)
- Health Care 1 (17%)
Stage
- Series A 2 (33%)
- Series B 1 (17%)
- Series C 1 (17%)
- Series D 1 (17%)
- Venture - Series Unknown 1 (17%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Latent
|
Latent is a creator of medical language models aimed at reducing healthcare operational costs. | $80M / Series A / Mar 18, 2026 | |
Antithesis
|
Antithesis develops QA software that revolutionizes the way software testing is performed. At Antithesis, the company wants to bring the confidence and productivity benefits of autonomous testing to your team. It has developed a platform that searches for bugs in your software, in a controlled environment where all bugs are reproducible. Its firstoffering finds fault tolerance bugs: failures of the software that occur under specific network, hardware, or timing conditions. | $105M / Series A / Dec 03, 2025 | |
Chainguard
|
Chainguard provides hardened, minimal container images that are continuously rebuilt from source in secure environments, aiming to eliminate known vulnerabilities and ensure end-to-end integrity. These images come with built-in cryptographic signatures, Software Bill of Materials (SBOMs), and Supply-chain Levels for Software Artifacts (SLSA)provenance. In addition to container images, Chainguard offers a catalog of guarded Java dependencies through its Chainguard Libraries, built securely from source in SLSA-certified infrastructure. The company also contributes to and maintains several widely used open source projects, reflecting its commitment to the open source community. | $356M / Series D / Apr 23, 2025 | |
|
Antithesis
|
Antithesis develops QA software that revolutionizes the way software testing is performed. At Antithesis, the company wants to bring the confidence and productivity benefits of autonomous testing to your team. It has developed a platform that searches for bugs in your software, in a controlled environment where all bugs are reproducible. Its firstoffering finds fault tolerance bugs: failures of the software that occur under specific network, hardware, or timing conditions. | $30M / Venture - Series Unknown / Feb 13, 2025 | |
|
Chainguard
|
Chainguard provides hardened, minimal container images that are continuously rebuilt from source in secure environments, aiming to eliminate known vulnerabilities and ensure end-to-end integrity. These images come with built-in cryptographic signatures, Software Bill of Materials (SBOMs), and Supply-chain Levels for Software Artifacts (SLSA)provenance. In addition to container images, Chainguard offers a catalog of guarded Java dependencies through its Chainguard Libraries, built securely from source in SLSA-certified infrastructure. The company also contributes to and maintains several widely used open source projects, reflecting its commitment to the open source community. | $140M / Series C / Jul 25, 2024 | |
|
Chainguard
|
Chainguard provides hardened, minimal container images that are continuously rebuilt from source in secure environments, aiming to eliminate known vulnerabilities and ensure end-to-end integrity. These images come with built-in cryptographic signatures, Software Bill of Materials (SBOMs), and Supply-chain Levels for Software Artifacts (SLSA)provenance. In addition to container images, Chainguard offers a catalog of guarded Java dependencies through its Chainguard Libraries, built securely from source in SLSA-certified infrastructure. The company also contributes to and maintains several widely used open source projects, reflecting its commitment to the open source community. | $61M / Series B / Nov 01, 2023 |
Co-Investors
About Spark Capital
Spark Capital is an early-stage venture capital firm that invests in exceptional products and the creative individuals behind them. Known for embracing risk and a unique approach, Spark Capital has backed companies like Twitter, Discord, Anthropic, Cruise, Niantic, Oculus, Warby Parker, and Tumblr. Recognizing that there are no set playbooks orformulas for success, the firm supports founders in achieving success on their own terms. Spark Capital invests across all sectors and stages, operating out of San Francisco, Boston, and New York City.
Spark Capital Contacts
| Name | Phone | Socials | |
|---|---|---|---|
|
Clay Fisher
General Partner
|
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Alexander Finkelstein
Co-founder & General Partner
|
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Bijan Sabet
Co-Founder and General Partner
|
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Fraser Kelton
General Partner
|
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James Kuklinski
General Partner, Growth
|
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FAQ
What does Clay Fisher invest in?
Clay Fisher invests primarily in B2B, Security and Software startups, most often at Series A and Series B stage. Most of the 6 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 Clay Fisher last invest?
The most recent investment recorded for Clay Fisher closed in Mar 2026. Shizune tracks 6 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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