# Mike Chalfen

> Mike Chalfen is a seed investor at Mike Chalfen (London) backing Software and SaaS. See 31 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Mike Chalfen](https://shizune.co/investors/profile/mike-chalfen-3d49)
- Location: London, United Kingdom
- Total investments: 31
- Last investment: May 2026
- Lead investor: 55%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/mikechalfen/
- X (Twitter): http://twitter.com/chalfs
- Website: https://x.com/chalfs

Mike Chalfen is a seed investor at Mike Chalfen in London focused on Software and SaaS. Mike Chalfen is based out of London, England, and is the Founder & Partner of Chalfen Ventures and also Board of Director of SurrealDB. Mike previously worked at Advent Venture Partners as a General Partner. Mike Chalfen attended Harvard University. Mike Chalfen has received the award of The Midas List.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $3.2M–$11M |
| Series A | $5M–$29M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 10 | 32% |
| SaaS | 7 | 23% |
| Artificial Intelligence | 6 | 19% |
| E-Commerce | 4 | 13% |
| Big Data | 3 | 10% |

53 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 12 | 39% |
| Series A | 10 | 32% |
| Series B | 1 | 3% |
| Series C | 1 | 3% |
| Series D | 1 | 3% |

6 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United Kingdom | 11 | 35% |
| United States | 6 | 19% |
| Germany | 2 | 6% |
| Spain | 1 | 3% |
| France | 1 | 3% |

7 countries tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Inherent | Inherent aims to establish the blueprint for AI-native science while investigating the boundaries of scientific inquiry. | $50M | Seed | May 28, 2026 |  |
| Iridius | Iridius is the compliance-by-design AI platform that enables regulated enterprises to design, build, and operate AI systems that are continuously compliant. In regulated industries, AI isn’t failing because of model capability — it’s failing because it can’t operate within real-world constraints: fragmented systems, complex workflows, and strictregulatory compliance requirements. Instead of treating compliance as a manual process that happens after systems are built, Iridius makes compliance part of how systems run. | $8.6M | Seed | Apr 23, 2026 |  |
| SurrealDB | SurrealDB develops a multi-model database platform designed to handle document, graph, and relational data within a single system. The platform supports SQL-like querying while enabling real-time data synchronization and event-driven updates across applications. It provides built-in features such as authentication, authorization, and access controlat the database layer. SurrealDB operates across various environments, including embedded deployments, single-node instances, and distributed clusters. The system is designed to support modern application development by combining flexible data modeling with transactional consistency and programmable logic inside the database. | $23M | Series A | Feb 17, 2026 |  |
| Amenitiz | We created Amenitiz because we believe technology is the key to making success and profitability accessible to every hotelier in the world - whether they are in the heart of Paris or in the Uyuni Salt Flats in Bolivia. Our mission is to build an all-in-one platform to help owners grow and manage their vacation properties by making attractingguests, managing bookings and crafting exceptional experiences, simple and easy. We invite you to be part of our growing community and help us redefine the future of online hospitality together. | $45M | Series B | Nov 11, 2025 |  |
| Tracelight | Tracelight is an AI-powered Excel add-in that enhances financial modeling by enabling users to generate formulas from natural language, check for errors, and interact with models using plain English. It helps financial professionals save time, reduce errors, and work more efficiently while maintaining security and data privacy. | $3.6M | Seed | Aug 07, 2025 |  |
| Stackfix | Stackfix operates as a software comparison platform. | $3M | Seed | Dec 03, 2024 |  |
| Polar Analytics | Polar Analytics allows e-commerce merchants to easily combine all of their marketing data from multiple ad platforms, analytics tools, modern CRM, and sales channels to make the right data-driven decisions in seconds. | $19.1M | Series A | Nov 12, 2024 |  |
| SurrealDB | SurrealDB develops a multi-model database platform designed to handle document, graph, and relational data within a single system. The platform supports SQL-like querying while enabling real-time data synchronization and event-driven updates across applications. It provides built-in features such as authentication, authorization, and access controlat the database layer. SurrealDB operates across various environments, including embedded deployments, single-node instances, and distributed clusters. The system is designed to support modern application development by combining flexible data modeling with transactional consistency and programmable logic inside the database. | $15M | Series A | Jun 18, 2024 |  |
| General Index | General Index is an energy data and analytics company that develops transparent benchmarks for global commodity markets. The platform generates daily spot prices and forward curves across crude oil, refined products, natural gas, and energy transition markets using extensive transaction data and consistent methodologies. | $12.1M | Series A | Feb 01, 2024 |  |
| Translucent | Translucent is next-gen accounting software. | $6.4M | Seed | Aug 23, 2023 |  |

10 of 31 investments shown.

## Co-investors
- [BACKED VC](https://shizune.co/investors/profile/backed-vc) — VC Fund, 4 deals together
- [Point Nine](https://shizune.co/investors/profile/point-nine-capital) — VC Fund, 3 deals together
- [Acequia Capital (AceCap)](https://shizune.co/investors/profile/acequia-capital) — VC Fund, 2 deals together
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund, 2 deals together
- [Angular Ventures](https://shizune.co/investors/profile/angular-ventures) — VC Fund, 2 deals together
- [Balderton Capital](https://shizune.co/investors/profile/balderton-capital) — VC Fund, 2 deals together

## About Mike Chalfen

VC Fund

I invest my own capital to back teams building remarkable software-driven companies. I often partner with them from the start of their journeys. I have chosen to operate as a solo investor as there is no greater privilege than supporting founding teams as fully as I can. My consistent success as an investor is only possible because of them. So Ialways put the interests of our companies first. I am drawn to distinctive, original startups, and frequently invest in less obvious opportunities that require some vision. If they succeed fully, they will become enduring companies with important positions in global markets. This success will be built on accumulating advantages, technical moats, and attractive economic models and therefore ultimate self-determination. I have had the good fortune to invest early in a wide range of great companies including King.com, Houzz, The Foundry, Ubiquisys, Boxed, eDreams and QXL.com. In the last few years, I invested early in emerging platforms like Illumio, Infosum and Tray.io, “intelligent software” startups like Moogsoft and Seal Software, and some unannounced investments. In November 2017, I was honoured to be included in Forbes' first Midas List Europe. Without the adventurous entrepreneurs that I've enjoyed working with over the years, this wouldn't have been possible, and I am thankful to this very special group of people.

1 contacts available at Mike Chalfen.

| Name | Title | Profile |
| --- | --- | --- |
| Mike Chalfen | Investor | https://shizune.co/investors/profile/mike-chalfen |

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## FAQ

### What does Mike Chalfen invest in?

Mike Chalfen invests primarily in Software, SaaS and Artificial Intelligence startups, most often at Seed and Series A stage. Most of the 31 investments tracked by Shizune back companies in United Kingdom. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Mike Chalfen's check size?

Mike Chalfen typically joins rounds of $3.2M–$11M at Seed and $5M–$29M 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 Mike Chalfen participates in.

### When did Mike Chalfen last invest?

The most recent investment recorded for Mike Chalfen closed in May 2026. Shizune tracks 31 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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