Menlo Ventures Lands $3B, Its Largest Fund, on an Anthropic Bet

The headline number is $3 billion, but the more revealing figure is the one sitting behind it. According to Bloomberg, Menlo Ventures has closed its largest-ever fundraising haul, bringing in $3 billion for a set of funds dedicated to AI startups. The fuel for that raise is a single position: Menlo's stake in Anthropic, built up through an additional $500 million in investments across several rounds, is now reportedly worth nearly $14 billion, as Anthropic's valuation has soared to more than $900 billion.

Menlo managing partner Shawn Carolan reportedly called the original Anthropic investment a "bet-the-firm moment," and from the outside it reads exactly that way. A firm historically focused on backing newer startups made a concentrated bet on AI infrastructure and it has reshaped the firm's profile entirely, helping, as the reporting describes it, to supercharge Menlo's clout and investing activity.

Nearly $14 billion remains a paper figure tied to a private valuation above $900 billion. Menlo has not yet distributed those gains to LPs, and the path from paper to cash runs through either an IPO or secondary sales at a moment when AI valuations are historically elevated. Anthropic itself is pitching investors on $190B-$200B in 2028 revenue to anchor that IPO case. The reporting does not detail how the $3 billion is split between Anthropic follow-ons and new bets, what the fund's return timeline looks like, or when Menlo expects to realize the position.

What the close does confirm is a strategic shift. Menlo says it intends to pursue more later-stage bets of the kind it made in Anthropic, expanding beyond its traditional early-stage identity. For growth-stage AI companies, that means another well-capitalized firm now competing for the larger checks that crossover and growth funds have historically owned.