Lux, a venture capital firm focused on investing at the frontier of science and technology, announced the close of Lux Ventures IX, a $1.5 billion fund the firm described as its largest to date.
In the announcement, the firm said it was founded in 2000 on the belief that “the biggest opportunities lie at the frontier of science and technology that others find too hard, too early, or too confusing,” and argued that the intervening 25 years have brought a meaningful shift: what was once considered fringe “deep tech” has matured into scalable engineering across compute, automation and biology.
Lux said it sees increasing industrial capacity, tooling, and talent as key accelerants for turning advances across the physical, computational, and life sciences into durable companies. The firm positioned the new fund as a source of “meaningful capital and conviction” for founders building in areas including aerospace, biotech, defense, industrials and transportation.
The firm also emphasized a long-duration approach to company building, describing a partnership model intended to support companies from earliest formation through later-stage scaling. Lux said it aims to deploy both initial seed-level checks and significant follow-on capital, supporting founders through the “full arc” of business building.
Lux stated that its 44-person team now manages $7 billion in assets, and said its investment approach remains centered on backing founders “others have overlooked,” prioritizing conviction over consensus, and treating capital as a tool in service of building enduring companies.
