Apache Software Foundation 2019 Annual Report: Community, Projects, and Sponsorship Statistics

Apache Projects In 2019 the Apache Software Foundation oversaw 339 projects and sub‑projects, including 206 top‑level projects, 46 incubator projects, 11 foundation committees, and 60 other categories such as operations and support.

Community / People The foundation counted 7,203 contributors (7,038 active), 765 individual members, and 40 newly elected members.

Project and Code Statistics A total of 3,081 Apache contributors made 171,689 commits, modifying 59,309,787 lines of code, and the number of contributors reached a historic high of 12,250 in 2019.

Top Five Committers The most prolific contributors were Andrea Cosentino (3,841 commits, 588,217 lines changed), Tilman Hausherr (2,791 commits, 64,805 lines), Claus Ibsen (2,562 commits, 628,919 lines), Jean‑Baptiste Onofré (2,498 commits, 81,563 lines), and Mark Thomas (2,452 commits, 331,234 lines).

Top Five Apache Project Repositories by Commits Camel, HBase, Flink, Beam, and Hadoop.

Top Five Apache Project Repositories by Lines of Code NetBeans (8,354,466 lines), OpenOffice (7,828,646 lines), Flex (whiteboard 523,377 lines), Mynewt (core 4,108,323 lines), and Flex (SDK 3,933,522 lines).

Mailing Lists The foundation hosts 1,399 mailing lists; 19,385 authors sent 2,116,421 emails covering 1,116,478 topics.

Most Active Apache Users on Mailing Lists Flink, Lucene‑Solr, Ignite, Kafka, and Tomcat.

Most Active Apache Developers on Mailing Lists Beam, Flink, Tomcat, Royale, and NetBeans.

Contributor License Agreements and Software Licenses In 2019, 759 Individual Contributor License Agreements (ICLAs), 34 Corporate Contributor License Agreements (CCLAs), and 40 Software Grant Agreements (SGAs) were signed.

Sponsorship and Individual Support Platinum sponsors include AWS, Cloudera, Leaseweb, Microsoft, Pineapple Fund, Tencent, and Verizon Media; gold sponsors include Anonymous, ARM, Bloomberg, Handshake, Huawei, IBM, Indeed, Union Investment, and Workday; silver sponsors include Aetna, Alibaba Cloud, Baidu, Budget Direct, Capital One, CarGurus, Cerner, Inspur, ODPi, Private Internet Access, Red Hat, and Target; bronze sponsors list numerous companies such as Airport Rentals, Bestecasinobonussen.nl, and many others.

Directed Sponsors Directed platinum sponsors are CloudBees, DLA Piper, JetBrains, Microsoft, OSU Open Source Labs, Sonatype, and Verizon Media; directed gold sponsors include Atlassian, The CrytpoFund, Datadog, PhoenixNAP, and Quenda; directed silver sponsors are Amazon Web Services, HotWax Systems, and Rackspace; directed bronze sponsors include Bintray, Education Networks of America, Google, Hopsie, No‑IP, PagerDuty, and others.

The combined efforts of members, contributors, users, supporters, and sponsors drive Apache’s mission to provide free, community‑driven open‑source software for the public good. For full details, see the 2019 fiscal year annual report at https://s.apache.org/FY2019AnnualReport.