The Apache Software Foundation
Nonprofit home of 300+ open source software projects, such as Apache HTTP Server, Kafka and Airflow, that it gives away free to developers and enterprises under the Apache License.
The Apache Software Foundation (ASF) is a US 501(c)(3) charity, incorporated in Delaware in 1999. It provides legal, financial and infrastructure support for community-governed open source projects, which are free under the Apache License 2.0 and used by developers and enterprises worldwide. It has no product sales. It is funded by corporate sponsors (62 in FY2026) and individual donations, and it is run by volunteers. In FY2026 (ended April 30, 2026) it reported about $3.87M in revenue, $1.45M in net income, and 10,225 committers across 302 projects. It also launched a $10M Responsible AI Initiative, with initial support from Anthropic ($1.5M) and Alpha-Omega ($250K).