Guillermo Rauch
Founder and CEO @ Vercel
San Francisco, United States
Guillermo Rauch is a seed investor at Vercel in San Francisco focused on Software and Artificial Intelligence. Guillermo Rauch is based out of Lanús, Buenos Aires and is the CEO of Vercel. Guillermo previously worked at MooTools as a frontend engineer.
- Total investments:
- 153
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries Guillermo Rauch invests in
Stages Guillermo Rauch invests in
Countries Guillermo Rauch invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $2.3M–$15M
- Series A
- $10M–$40M
- Series B
- $30M–$300M
Investment Focus
Industry
- Software 60 (39%)
- Artificial Intelligence 49 (32%)
- Information Technology 34 (22%)
- Developer Tools 29 (19%)
- SaaS 16 (10%)
Stage
- Seed 72 (47%)
- Series A 42 (27%)
- Series B 16 (10%)
- Pre-Seed 12 (8%)
- Series C 2 (1%)
Country
- United States 94 (61%)
- Sweden 3 (2%)
- Germany 3 (2%)
- Argentina 3 (2%)
- United Kingdom 3 (2%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| TesterArmy provides an AI-powered QA platform that tests web and mobile apps via real browser runs and CI integrations. | $1.2M / Pre-Seed / Sep 15, 2026 | ||
| Rebill.com is the payments and subscriptions platform specifically designed for digital businesses and global companies scaling in Latin America.With our platform and API, companies can integrate over 100 local payment methods from the region, including cards, bank transfers, cash, and even wallets. In addition, they always receive the best humansupport with fair pricing and utmost transparency, enabling them to scale across the region 10 times faster.We are backed and have received investment from some of the world's leading funds such as Tiger Global Management, Soma Capital, SV Angel, Y Combinator, as well as incredible angel investors like Guillermo Rauch (Vercel), Arash Ferdowsi (Dropbox), among others. | $5.4M / Seed / Sep 13, 2026 | ||
| Wafer is an AI optimization platform that automatically accelerates AI models by generating efficient custom GPU kernels. | $40M / Series A / Sep 01, 2026 | ||
| Gravity is an AI ad platform enabling AI apps to monetize conversations with contextual ads, targeting users through conversational intent. | $30.5M / Series A / Aug 06, 2026 | ||
| Ambrook offers specialized accounting software for family-run farms, ranches, and agribusinesses. The platform includes bookkeeping, invoicing, bill payment, and analytics tools. Ambrook aims to help these businesses manage finances, track profitability, and prepare for the future. | $30M / Series B / Aug 04, 2026 | ||
| Paper is an digital canvas designed to help designers create and organize their work. | $34M / Series A / Jul 22, 2026 | ||
| SkyPilot is an open-source framework for running AI and batch workloads on any infra. | $20M / Seed / Jul 21, 2026 | ||
| Meticulous is a tool for detecting bugs in web applications. The company was founded in 2021. | $15M / Series A / Jul 15, 2026 | ||
| Pocket is a technology company that develops an AI-enabled note-taking system combining a dedicated recording device with companion software. Its platform records in-person conversations and phone calls, transcribes audio, and organizes the content into searchable transcripts, summaries, action items, and mind maps. The system supports offlinerecording, cloud synchronization, and access across mobile, desktop, and web applications, with support for more than 120 languages. Pocket also provides AI-powered features for organizing, searching, and exporting recorded information while offering integrations with task management workflows. Its products are designed for individuals and teams who need to capture, organize, and retrieve information from conversations and spoken ideas. | $11M / Seed / Jun 29, 2026 | ||
| Odyssey operates as an AI start-up, provides hollywood-grade visual AI. | $310M / Series B / Jun 17, 2026 | ||
| See all 153 investments → | |||
Co-Investors
About Vercel
Vercel is a software company that provides cloud infrastructure to save and secure personalized websites. They offer a DX platform, AI, and open-source services. They also provide resource centers, marketing sites, templates, platforms, and design engineer solutions.
Vercel Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Jared Palmer
Principle Software Engineer
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Kathy Simpson
VP of Product
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Luke Miller
VP Sales EMEA / APAC
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Marten Abrahamsen
Chief Financial Officer
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Matheus Fernandes
Head of Infrastructure & IT
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FAQ
What does Guillermo Rauch invest in?
Guillermo Rauch invests primarily in Software, Artificial Intelligence and Information Technology startups, most often at Seed and Series A stage. Most of the 153 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 Guillermo Rauch's check size?
Guillermo Rauch typically joins rounds of $2.3M–$15M at Seed, $10M–$40M at Series A and $30M–$300M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Guillermo Rauch participates in.
How do I contact Guillermo Rauch?
Public channels for Guillermo Rauch 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 Guillermo Rauch last invest?
The most recent investment recorded for Guillermo Rauch closed in Sep 2026. Shizune tracks 153 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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