List of the 500 largest Startup Investor Single Family Offices [2025]

List of 3 large startup investor single-family offices

Over recent years, investing in start-ups has become increasingly important for global single-family offices, especially in the context of low interest rates. It is an opportunity for family offices to diversify their portfolio beyond traditional investments. It offers high-growth potential and access to innovation. Individuals and family offices want to invest in the next big thing in the hope of becoming as wealthy as some people have done in the past. Here, we highlight three exciting single-family offices from our keyword-crawler-based list.

1. Pritzker Group (United States)

The Pritzker Group is a US single-family office launched by Tony and J.B. Pritzker. The family office has three major investment verticals: private capital, venture capital, and asset management. In their venture capital vertical, the startup investor family office invests from $0.5-5M in initial rounds, with the option to also participate in following rounds. Investments include Fleetmatics, LeftHand Networks, Coinbase, and Dollar Shave Club.

2. Ambient Sound Investments (Estonia)

Ambient Sound Investments is the single-family office of four early employees of Skype, established to hold their minority stake in the video call company. The family office invests in Europe, the United States, and Asia. The family office is an active venture capital investor, investing in funds as well as direct investments. Portfolio funds are Karma Ventures, Plural Platform or Golden Gate Ventures. Direct investments were, so far, Nanotronics, Pomelo and Starship Technologies.

3. Financière Saint James (France)

Financière Saint James is the French single-family office of vente-privée.com co-founder Michaël Benabou. The family office is an active venture capital and startup investor. The family office acts as an early-stage investor with initial checks starting from €200K, able to invest in follow-on rounds up to €5M. Current portfolio companies include Lydia, Colonie, or Seyna. The family office also invests in venture capital funds, such as Andreessen Horowitz or Atomico.

In this list, we combine two unique assets: our global database with more than 1,600 global single-family offices and our expertise in building web crawlers and analysis tools. In our Sartup Investor Single Family Office list, we checked if the websites of the family offices from our database cover startup-related keywords, such as „venture capital“ or „startup“. The list contains all the family offices we identified that contain at least one relevant keyword mention

Keyword Crawler Methodology

Searching our entire database manually for startup keywords would be impossible due to its size. Therefore, we have developed a Python-based search tool that makes our work easier. The process behind it is a three-step procedure.

1. Similar to a Google crawler, our tool searches each family office website from our database for subpages.
2. We then check each of the previously identified subpages to see whether they contain startup keywords. The number of keywords is counted and compared to the total number of words on the page. This allows us to calculate various statistics (see below) and highlight the most important subpages.
3. Comparing the results allows us to create a specific list for your area of interest. We have crawled the family office websites for the keywords:

• venture capital
• seed investment
• startup investment
• venture investment
• seed funding

The most often found keyword was “venture capital” with over 12,000 occurrences, followed by “seed funding”.

Picture Source: Clark Tibbs via Unsplash