Cloud infrastructure provider Lambda is preparing to raise up to $4 billion in what may serve as its final private funding round before an initial public offering planned for 2027, according to reports from The Wall Street Journal. The round is being led by Coatue Management and Blackstone, with the company now holding a pre-money valuation of $14.5 billion.
Investor materials reviewed by the Journal indicate that Lambda’s order backlog expanded sharply from $15 billion in June to $50 billion by September. However, a significant portion of this surge stems from a single customer: AI lab Anthropic. In late August, the two companies finalized a $35 billion cloud commitment, which has substantially inflated Lambda’s metrics.
The company’s valuation has risen considerably since its previous funding round in November 2025, which followed a multi-billion-dollar agreement with Microsoft. Analysts suggest that Lambda’s current pricing may be heavily reliant on Anthropic’s continued ability to meet its payment obligations. Nevertheless, investors remain eager to back firms securing reliable GPU capacity, particularly those with deep ties to major AI laboratories.
For neocloud operators like Lambda, the primary challenge lies not in generating demand but in financing the capital-intensive construction of data centers. These projects are predominantly debt-funded; Lambda recently secured an additional $1 billion in senior secured fixed-rate financing last week. As lenders grow increasingly selective about their terms and borrowers, the timing of this equity raise is strategic.
Raising capital now allows Lambda to set a favorable tone for its upcoming IPO pricing while securing resources before facing the rigorous scrutiny typical of public markets. Although the company was initially expected to go public this year, it has delayed the move due to broader market volatility.
Upon launching, Lambda will join a cohort of Nvidia-backed neoclouds that have turned to public markets to fund expansion, including CoreWeave and Nebius. Similarly, British neocloud Nscale filed for an IPO last month and is expected to begin trading shortly, signaling a growing trend among AI infrastructure startups seeking public liquidity.
Representatives for Lambda, Coatue, and Blackstone did not immediately return requests for comment.
Another AI infra unicorn chasing an exit. I wonder if the 2027 timeline holds up with current market volatility?
Waiting for the IPO to see how public markets treat this valuation. $14.5 billion feels steep given the concentration risk.
That $50 billion backlog is mostly Anthropic. Is that really a diversified demand story or just one huge bet?