Topline

The Justice Department is investigating venture capital firm Andreessen Horowitz for potential antitrust violations, Bloomberg reported Monday, a rare instance of the Trump administration looking into a political ally as billionaire cofounder Marc Andreessen has emerged as a key adviser and financial supporter for President Donald Trump.

Key Facts

The DOJ has been investigating Andreessen Horowitz for nearly a year, Bloomberg reports citing anonymous sources, based on concerns about potential conflicts involving board members on competing AI firms.

Partners at Andreessen Horowitz serve on boards of multiple AI companies that the venture capital firm has stakes in—the companies Databricks Inc. and Fivetran Inc.—which could run afoul of antitrust laws that prohibit individuals or entities from serving on boards of competing companies.

It’s still unclear whether the probe could result in any consequences, with Bloomberg noting such probes typically result in officials being forced to resign from the boards at issue.

The DOJ’s willingness to go after Andreessen Horowitz is notable given the firm and its founders’ close relationship with the Trump White House, with Bloomberg previously describing the firm as being a “sounding board” for the administration and serving as the White House’s “first outside call” on issues regarding AI policy.

Andreessen has also been a standout Trump donor and ally, getting appointed to multiple advisory boards through the administration and saying he spent “half” his time after the 2024 election advising Trump at the president’s Mar-a-Lago estate.

Andreessen Horowitz and the DOJ have not yet responded to requests for comment.

Forbes Valuation

Forbes values Andreessen’s net worth at $1.9 billion as of Monday afternoon.

This story is breaking and will be updated.