Flox, a New York-based platform for unified software lifecycles, has raised $25 million in a Series B funding round.
Investors
The round was led by Addition, with participation from NEA, D. E. Shaw Group, Hetz, and Illuminate Financial.
Addition is a venture capital firm that focuses on investing in early- and growth-stage technology companies globally. Founded in 2020, Addition invests in founder-led, technology-enabled companies. Its investment strategy typically allocates capital to both early-stage (like Series A) and growth-stage (Series B and beyond) opportunities. The firm has a broad technology focus, encompassing areas such as e-commerce and retail, SaaS, fintech, data & analytics, AI & deep tech, and developer tools.
Flox Use of Funds
The company will use the funding to accelerate product development, expand go-to-market efforts, and enhance universal development infrastructure, security, and compliance features.
About Flox
Led by CEO Ron Efroni, Flox is a platform designed to simplify the creation and management of reproducible development environments. By leveraging the power of Nix, an open-source package manager, Flox provides an end-to-end solution that empowers teams to accelerate and streamline their Systems Development Life Cycle through secure, isolated, and reproducible development and runtime environments. Its platform supports enterprise automation, advanced dependency management, cross-platform portability, and built-in software supply chain security. Flox was founded in 2021 as a spin-off from the D.E. Shaw Group.
Funding Details
Company: FloxDev, Inc.
Raised: $25.0M
Round: Series B
Funding Date: September 2025
Lead Investor: Addition
Additional Investors: NEA, D. E. Shaw Group, Hetz, Illuminate Financial
Company Website: https://www.flox.dev
Software Category: Software Infrastructure / Developer Tools
Source: Samantha Boselli, Public Relations Lead, Growth Stack Media