The U.S. Department of Justice is looking into venture capital firm Andreessen Horowitz to determine whether its investment partners are holding board seats at competing artificial intelligence companies in ways that might raise regulatory concerns.

Databricks and Fivetran are both at the forefront of the probe and are backed by Andreessen Horowitz, Bloomberg reported.

Sources familiar with the matter told Bloomberg that the DOJ has not made any final determinations regarding the investigation into both companies, and it is possible that no action may be taken.

Andreesen co-founder Ben Horowitz serves on the board of Databricks, while partner Martin Casado sits on Fivetran’s board. Both companies provide data infrastructure and analytics tools to help businesses collect, manage and analyze large volumes of data, Bloomberg noted.

Casado was previously on the board of dbt labs, which was ultimately acquired by Fivetran in June. The DOJ initially looked into the deal in October, but "cleared it unconditionally," the publication noted.

The investigation stems from the Clayton Antitrust Act of 1914, which prohibits the same person from serving as a director or officer of two competing corporations. The act was designed to prevent potential anticompetitive coordination and information-sharing.

The DOJ revived aggressive enforcement of this act during the Biden administration when Antitrust Division chief Jonathan Kanter told directors at more than a dozen boards to resign or abandon planned appointments, Bloomberg noted.

Brookfield Asset Management, American Equity Investment Life Holding Company, Sun Country Airlines, Atlas Air Worldwide Holdings, N-able, Dynatrace, Solarwinds, Qualys, SumoLogic and F5, Inc. declined to appoint board members without acknowledging liability as a result of the probe at the time.

Andreessen Horowitz currently has approximately $90 billion in assets under management, as of January 2026. The Silicon Valley-based firm is invested in major companies such as Anchorage Digital, Anduril, Databricks, Eleven Labs and Flexport, among others, its website states. 

SpaceX, which debuted on the public market earlier this year, was another investment of Andreesen’s. The firm’s portfolio also included OpenAI and Cursor.

Earlier this year, the firm raised more than $15 billion with new funds including American Dynamism, Apps, Bio and Health, Infrastructure and Growth and other venture strategies, raising more than 18% of all venture capital dollars allocated to the U.S. in 2025, the company wrote in a press release at the time. 

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