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Leonid Radnivsky Homepage


Leo Radvinsky is an economist by training and entrepreneur by trade. Founder and strategic investor of multiple online giants. Elixir evangelist. Open source advocate. 

Leo Radvinsky is an accomplished company architect, angel investor, philanthropist, and open source software supporter. He has spent the last two decades building software companies and contributing to the open source movement. Leo aligns himself with talented teams of entrepreneurs and engineers all over the world who are building the next generation of internet applications and services.

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Leo is active in the development of many projects which encompass open source software for their communities. 

Image by Hack Capital


Pleroma is a free and open source self-hosted distributed social networking and microblogging service. It implements the ActivityPub protocol making Pleroma instances part of an interconnected and decentralized network of independently operated servers.

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From Anywhere Technologies, B4X is a suite of IDEs and programming language that allows for the development of mobile applications. The suite of programs that provide a development platform for the programming language makes it easy for those new to computing or programming to get started. 

Image by Kevin Ku


The Elixir language is built on an Erlang foundation but inspired by Ruby. One of the most important features of Elixir is its fault-tolerance which other languages do not provide. Elixir optimizes for consistent performance, including easy scalability of web projects and applications by leveraging parallelism and concurrency. Today Elixir is used across industries to create and grow businesses. The Elixir community is fueled by passionate developers who contribute to its ecosystem.

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Leo Radvinsky contributes funds to many organizations publicly and privately. Many of the organizations he donates to support groundbreaking medical research.

Organizations that have received philanthropic donations include:

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uchicago medicine logo, leo radnivsky home
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west suburban humane society logo, leo radnivsky

The LR Foundation was born from a deeply-held belief in the power of open source technology as a force for global equality and empowerment. Through its support for a growing portfolio of innovative open source projects, Founder Leo Radvinsky seeks to empower the organizations that are dedicated to expanding technological accessibility, nourishing the newest generation of developers, and fostering collaboration on a global scale. 

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