# Phil Libin

> Phil Libin is a seed investor at All Turtles backing Software and Artificial Intelligence. See 17 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [All Turtles](https://shizune.co/investors/profile/allturtles)
- Location: San Francisco, United States
- Total investments: 17
- Last investment: Nov 2022
- Lead investor: 24%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/in/plibin
- X (Twitter): http://twitter.com/plibin
- Website: https://18salisbury.capital

Phil Libin is a seed investor at All Turtles in San Francisco focused on Software and Artificial Intelligence. Phil Libin is co-founder and CEO of All Turtles, a mission-driven product studio, and mmhmm, a new app that makes video communication more clear and compelling. Previously he was Managing Director at General Catalyst, and before that he was co-founder and CEO of Evernote, which he grew to become a beloved product for hundreds of millions of users.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $1.5M–$6.1M |
| Pre-Seed | $500k–$2M |
| Series A | $6M–$30M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 5 | 29% |
| Artificial Intelligence | 5 | 29% |
| Apps | 2 | 12% |
| SaaS | 2 | 12% |
| Mobile | 2 | 12% |

46 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 7 | 41% |
| Series A | 3 | 18% |
| Pre-Seed | 2 | 12% |
| Angel | 1 | 6% |
| Convertible Note | 1 | 6% |

6 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 12 | 71% |
| United Kingdom | 1 | 6% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Zibra AI | Zibra is building the AI-native infrastructure for spatial intelligence enabling real-time, scalable 3D data pipelines for AI training and edge inference. Our proprietary technology compresses complex 3D datasets by up to 97%, solving critical streaming and infrastructure bottlenecks across industries including robotics, autonomous vehicles,aerospace, digital twins, and climate modeling. | $1.2M | Convertible Note | Nov 01, 2022 |  |
| Zibra AI | Zibra is building the AI-native infrastructure for spatial intelligence enabling real-time, scalable 3D data pipelines for AI training and edge inference. Our proprietary technology compresses complex 3D datasets by up to 97%, solving critical streaming and infrastructure bottlenecks across industries including robotics, autonomous vehicles,aerospace, digital twins, and climate modeling. | $700K | Angel | Nov 01, 2022 |  |
| Zibra AI | Zibra is building the AI-native infrastructure for spatial intelligence enabling real-time, scalable 3D data pipelines for AI training and edge inference. Our proprietary technology compresses complex 3D datasets by up to 97%, solving critical streaming and infrastructure bottlenecks across industries including robotics, autonomous vehicles,aerospace, digital twins, and climate modeling. | $700K | Angel | Nov 01, 2022 |  |
| Makua | Makua is the Airbnb for donating. Explore the best nonprofits, get inspired to give, and easily make donations. See what causes your friends support, work towards philanthropy goals, and see the impact of your donations — all in one place. Makua is revolutionizing the way people give. Join the #MakuaMovement on our mission to raise humanity. | $500K | Pre-Seed | Jun 01, 2022 |  |
| Chatterbox | A corporate language learning platform that uniquely offers active practice alongside algorithmically matched native language coaches who share their students' professional backgrounds and interests. On the app, engineers are learning Arabic from engineers and aid workers are learning French from medical doctors and achieving industry toppingcourse completion rates. Chatterbox language coaches are professionals who have become forcibly displaced and are currently undervalued in the labour market. Co-founded by a former refugee and Y Combinator alum, Chatterbox is backed by BGV, All Turtles and WeWork. | $2M | Pre-Seed | Mar 15, 2022 |  |
| Octane AI | Trusted by 1,000+ Shopify and Shopify plus brands, Octane AI provides an all-in-one platform for engaging quizzes, data collection, and personalized Facebook Messenger and SMS automation. Merchants use Octane AI to connect, convert, and retain customers by personalizing the customer journey and giving customers the confidence to purchase.OctaneAI is backed by top Silicon Valley investors, including Bullpen Capital, General Catalyst, FJLabs, M Ventures, and the founders of Hipmunk, Hearsay Systems, and Articulate. The company is all-remote and employs team members in 10+ countries. It was founded in 2016 by Matt Schlicht, Ben Parr, and Leif K-Brooks. | $5M | Venture - Series Unknown | Jul 20, 2021 |  |
| Apollo Neuroscience | Apollo is a wellness product, the first clinically validated wearable that actively helps the body recover from stress. Apollo Neuroscience is a wellness product not intended to treat psychiatric disorders such as generalized anxiety disorder, social anxiety disorder, and panic disorder. Apollo is not a substitute for professional medical care. | $6M | Series A | May 21, 2021 |  |
| mmhmm | Mmhmm is a developer of a virtual camera application used to help make creative use of background during video conferencing calls. Its application integrates into the user's video calling applications and adds backdrops, allows users to team-up with their remote partners and give presentations together, and enables customers to make theirvirtual meetings more interesting and informative.The company was founded in 2020 and is headquartered in San Francisco, California. | $30.4M | Series A | Oct 07, 2020 |  |
| Octane AI | Trusted by 1,000+ Shopify and Shopify plus brands, Octane AI provides an all-in-one platform for engaging quizzes, data collection, and personalized Facebook Messenger and SMS automation. Merchants use Octane AI to connect, convert, and retain customers by personalizing the customer journey and giving customers the confidence to purchase.OctaneAI is backed by top Silicon Valley investors, including Bullpen Capital, General Catalyst, FJLabs, M Ventures, and the founders of Hipmunk, Hearsay Systems, and Articulate. The company is all-remote and employs team members in 10+ countries. It was founded in 2016 by Matt Schlicht, Ben Parr, and Leif K-Brooks. | $4.3M | Seed | Aug 21, 2020 |  |
| OccamzRazor | OccamzRazor combines machine learning and first-in-class biological techniques to improve outcomes in drug discovery and development. Our analysis pipeline consists of two proprietary technologies, Panoramic AI and RazorBrain. Together, they are designed to extract data from unstructured text sources (publications, patient reported outcomes, etc.)and join them with structured data (genomics, proteomics, phenomics, etc.) to generate stronger drug discovery hypotheses and more valuable insights. Successful applications include data extraction and curation from biomedical text, novel target identification, and drug repurposing/repositioning. | $4.5M | Seed | May 01, 2019 |  |

10 of 17 investments shown.

## Co-investors
- [SID Venture Partners](https://shizune.co/investors/profile/sid-venture-partners) — VC Fund, 7 deals together
- [Boost VC](https://shizune.co/investors/profile/boostfunder) — VC Fund, 2 deals together
- [Bullpen Capital](https://shizune.co/investors/profile/bullpen-capital) — VC Fund, 2 deals together
- [Human Capital](https://shizune.co/investors/profile/human-capital-da7c) — VC Fund, 2 deals together
- [Innovation Works](https://shizune.co/investors/profile/innovation-works) — VC Fund, 2 deals together
- [137 Ventures](https://shizune.co/investors/profile/137-ventures) — VC Fund, 1 deal together

## About All Turtles

VC Fund · San Francisco, United States

All Turtles makes products first, companies later. We partner with founding teams to solve everyday problems with practical AI. Our products include Butter.ai, Disco, DoNotPay, Edwin, Leade.rs, Octane AI, Replika, Spot, and Sunflower Labs. Our approach to entrepreneurship is responsible, inclusive, and international from the start. That’s why wehave locations in San Francisco, Tokyo, and Paris, with more to come.

5 contacts available at All Turtles.

| Name | Title | Profile |
| --- | --- | --- |
| Daniel Nicolae | Product founder | https://shizune.co/investors/profile/daniel-nicolae |
| Dylan Marriott | Product Founder & Software Engineer | https://shizune.co/investors/profile/dylan-marriott |
| Jessica Collier | Co Founder and VP of Product | https://shizune.co/investors/profile/jessica-collier-2 |
| Molly Norris Walker | Head of Design / Partner | https://shizune.co/investors/profile/molly-norris-walker-70b8 |
| Phil Libin | Co-founder & CEO | https://shizune.co/investors/profile/phil-libin |

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## FAQ

### What does Phil Libin invest in?

Phil Libin invests primarily in Software, Artificial Intelligence and Apps startups, most often at Seed and Series A stage. Most of the 17 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 Phil Libin's check size?

Phil Libin typically joins rounds of $1.5M–$6.1M at Seed, $500k–$2M at Pre-Seed and $6M–$30M at Series A. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Phil Libin participates in.

### When did Phil Libin last invest?

The most recent investment recorded for Phil Libin closed in Nov 2022. Shizune tracks 17 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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