# 01 Advisors

> 01 Advisors is a VC fund backing Software and Artificial Intelligence. See 77 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: San Francisco, United States
- Total investments: 77
- Last investment: May 2026
- Lead investor: 31%
- Fund size: $325M
- Last fund: Feb 2021
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/company/01a
- X (Twitter): https://twitter.com/01Advisors
- Website: https://01a.com/

01 Advisors is a venture and advisory firm helping founders go from building a product to building a company. The firm was founded in 2018 and is headquartered in San Francisco, California.

## Contacts

5 contacts available for 01 Advisors. Shizune tracks 2 team members at 01 Advisors. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/01-advisors-01?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Series A | $9M–$35M |
| Series B | $15M–$60M |
| Series C | $40M–$150M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 19 | 25% |
| Artificial Intelligence | 12 | 16% |
| SaaS | 9 | 12% |
| Financial Services | 8 | 10% |
| Information Technology | 7 | 9% |

105 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series B | 19 | 25% |
| Series A | 16 | 21% |
| Series C | 12 | 16% |
| Series D | 7 | 9% |
| Series E | 3 | 4% |

8 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 40 | 52% |
| Canada | 1 | 1% |
| France | 1 | 1% |
| Israel | 1 | 1% |
| United Kingdom | 1 | 1% |

6 countries tracked in total.

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Adam Bain | Co-Founder & Managing Partner | 32 | https://shizune.co/investors/profile/adam-bain |
| Richard Costolo | Managing Partner & Co-Founder | 66 | https://shizune.co/investors/profile/dick-costolo |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Capchase | Capchase is a fintech company that provides financial solutions to startups by allowing access to funds as they grow. | $26M | Venture - Series Unknown | May 27, 2026 |  |
| Crosby | Crosby is a company with programmers from Ramp, Vanta, Meta, and Google joining attorneys. | $60M | Series B | Mar 31, 2026 |  |
| Cape | Cape develops privacy-enabling technology that allows users to reclaim their privacy and security on electronic devices. The company's technology communicates with electronic devices while maintaining anonymity and privacy without compromising user experience. | $100M | Series C | Mar 19, 2026 |  |
| Render | Render offers the easiest cloud for developers and teams to host any application or website. The company’s goal is to completely eliminate the need to manage servers by offering a cloud with the best developer experience combined with incredible flexibility and power. This will ultimately improve all software and enable entirely new kinds ofapplications. Render was founded in 2018 and is based in San Francisco. | $100M | Series C | Feb 17, 2026 |  |
| Sublime Security | Open, adaptable email security. | $150M | Series C | Oct 28, 2025 |  |
| micro1 | Micro1 offers a platform that converts human expertise into structured datasets and recruitment processes for companies using AI. It provides a Data Engine that handles the recruitment of experts and manages human-in-the-loop operations to generate data used in post-training of AI models. It also provides Zara, an AI recruiter agent, whichdiscovers, vets, and qualifies talent globally for enterprises and large-volume recruitment firms. The company maintains a Research Lab that publishes studies related to evaluating AI-assisted recruitment, speech-to-text systems, proctoring models, and other aspects of human-data integration into AI systems. It delivers APIs to access its human-data services and recruiter tools. | $35M | Series A | Sep 12, 2025 |  |
| micro1 | Micro1 offers a platform that converts human expertise into structured datasets and recruitment processes for companies using AI. It provides a Data Engine that handles the recruitment of experts and manages human-in-the-loop operations to generate data used in post-training of AI models. It also provides Zara, an AI recruiter agent, whichdiscovers, vets, and qualifies talent globally for enterprises and large-volume recruitment firms. The company maintains a Research Lab that publishes studies related to evaluating AI-assisted recruitment, speech-to-text systems, proctoring models, and other aspects of human-data integration into AI systems. It delivers APIs to access its human-data services and recruiter tools. | $35M | Series A | Sep 12, 2025 |  |
| Baseten | Baseten provides a platform for training, deploying, and serving artificial intelligence models in production environments. It supports open-source, fine-tuned, and custom models, converting them into API endpoints with capabilities such as autoscaling, observability, and optimized model serving. The platform manages infrastructure componentsincluding containerization, GPU scheduling across multiple cloud providers, and performance optimizations to support large-scale inference workloads. Baseten also offers preconfigured model APIs and deployment options that can run either on its managed cloud service or within a customer's own environment. Its tools are designed to help developers build, manage, and scale AI applications while maintaining flexibility in how models are hosted and executed. | $150M | Series D | Sep 05, 2025 |  |
| Attio | Attio is an AI-native CRM platform for go-to-market teams. It helps manage customer relationships, automates workflows, and provides data-driven reporting. The service automatically enriches data from connected sources like email and calendars. | $52M | Series B | Aug 26, 2025 |  |
| Levelpath | Levelpath is a software development company that offers a platform to manage procurement services. The company's procurement platform maps the process so everyone can find where they need to go while streamlining workflows and approvals for enterprises of all sizes. Its solution also offers an intuitive workflow for employees engaging with theprocurement team, customized to meet each company’s compliance and procurement parameters. | $55M | Series B | Jun 30, 2025 |  |

10 of 77 investments shown.

## Co-investors
- [IVP](https://shizune.co/investors/profile/institutional-venture-partners) — VC Fund, 12 deals together
- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund, 11 deals together
- [Founders Fund](https://shizune.co/investors/profile/founders-fund) — VC Fund, 8 deals together
- [Index Ventures](https://shizune.co/investors/profile/index-ventures) — VC Fund, 8 deals together
- [Felicis](https://shizune.co/investors/profile/felicis-ventures) — VC Fund, 7 deals together
- [Abstract](https://shizune.co/investors/profile/a-list-ventures) — VC Fund, 6 deals together

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## FAQ

### What does 01 Advisors invest in?

01 Advisors invests primarily in Software, Artificial Intelligence and SaaS startups, most often at Series B and Series A stage. Most of the 77 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 01 Advisors's check size?

01 Advisors typically joins rounds of $9M–$35M at Series A, $15M–$60M at Series B and $40M–$150M at Series C. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds 01 Advisors participates in.

### How do I contact 01 Advisors?

Public channels for 01 Advisors 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 01 Advisors?

The team at 01 Advisors includes Adam Bain (Co-Founder & Managing Partner) and Richard Costolo (Managing Partner & Co-Founder). 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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