Bessemer raises $5.75 billion across two funds to back the full AI stack

Bessemer closes $5.75 billion for AI investing

Bessemer Venture Partners announced on Wednesday that it has raised $5.75 billion across two new funds, capital the firm intends to deploy across every part of the AI stack, according to TechCrunch. The announcement, dated September 23, 2026, extends a run of unusually large venture raises aimed at artificial intelligence.

The money is divided by stage. Bessemer has set aside $1.75 billion for seed and early-stage investing and the remaining $4 billion for growth-stage startups — a split that reflects where maturing AI companies now consume the most capital.

From SaaS specialist to full-stack AI investor

Bessemer built its reputation as a leading venture firm of the SaaS era, with a knack for spotting enterprise software winners such as Box, Docusign and Gainsight. Its current portfolio includes Anthropic, Cognition, Legora, Perplexity, Ramp, Shopify and Waymo.

Since 2022, the firm has invested in more than 260 AI-native companies, TechCrunch reports. Bessemer says roughly $3 billion has gone into AI-related startups so far, spread across compute, infrastructure, foundation models, developer tools, application-layer companies and agentic technology — effectively the entire length of the AI value chain.

Bigger funds for a structural shift

Partner Byron Deeter framed the bet in the firm's funding announcement, saying AI-native companies are scaling faster than any category of technology Bessemer has backed before. Deeter also told Bloomberg that venture firms must keep enlarging their funds because companies staying private for longer has become, in his words, a "permanent structural shift."

TechCrunch adds a note of skepticism toward the framing, observing that Bessemer's positioning of AI as the opportunity of a lifetime matches the standard industry line that tends to accompany each new technology wave.

Why it matters

The raise is further evidence that the amount of capital flowing into AI remains enormous, and that it is spreading across the whole market rather than pooling around a single layer. By funding everything from seed-stage startups through growth rounds, and from compute and infrastructure up to foundation models, developer tools, applications and agents, Bessemer is treating the entire AI stack as investable territory.

The $4 billion growth allocation is equally telling. AI companies are raising later and larger, staying private longer and spending heavily on compute and scaling. Investors who want exposure to the biggest outcomes increasingly need funds large enough to keep participating from the earliest rounds through maturity — a change in how venture capital is structured, not just a temporary response to a hot cycle.

Finally, the size of the commitment from a firm whose identity was forged in enterprise software signals where established venture investors believe the next generation of company-building is happening. When a SaaS-era specialist redirects this much money toward AI-native companies, it doubles as a statement about where the industry expects value to be created next.