Two partners at Andreessen Horowitz sit on the boards of companies that now compete with each other: Ben Horowitz at Databricks and Martin Casado at Fivetran. Nothing about that is scandalous on the surface. But according to TechCrunch, the Department of Justice has been investigating the arrangement for almost a year, and in doing so has dusted off a 112-year-old antitrust law that is rarely used against venture capitalists.

The board seat is not the new part

Conflicts on boards are hardly new to the venture world. An investor holding influence at more than one company in a sector has been ordinary practice for years. And when a16z first invested, Databricks and Fivetran were not necessarily direct competitors.

What changed was the companies themselves. In data infrastructure, product boundaries expanded quickly, and two firms that started out doing different things began selling to the same customer for the same need. The investor stayed still; the market moved.

A question for the whole sector

That is why the scope of this probe is not limited to a16z. The larger question it raises is this: how does a venture firm manage board seats when the boundaries between its portfolio companies keep moving?

In practice there are a handful of answers, and each carries a cost:

  • Give up the seat — the investor loses influence over the company and the flow of information that comes with it.
  • Move to observer status — attend without a vote; some information still flows.
  • Build an information wall — restrict sharing between teams inside the same fund, which is difficult to audit.
  • Exit one of the investments — the cleanest option and the most expensive.

None of these is foreign to the industry; large funds already use them. What is new is the prospect of the choice moving from voluntary practice to regulatory scrutiny.

Why this matters for AI

Capital in artificial intelligence is concentrated in a small number of large funds. The same fund invests in several companies operating at the same layer, and the lines between model providers, data infrastructure firms and agent tooling keep shifting. Two companies that look complementary now can become competitors six months later on the strength of a single product announcement.

In that environment, conflicts of interest look less like exceptions and more like the default. The Justice Department's decision to revive this statute suggests an area that venture investing has largely governed through its own conventions may be about to face outside supervision.

Other headlines discussed on the same TechCrunch Equity episode included Stripe paying $7.5 billion for the AI model router OpenRouter, Rivian spinout Also raising $150 million, and dictation app Wispr raising $280 million at a $2 billion valuation.