647 Open Core Companies

Rank Name Commercializing Stage
1
RedHat (IBM)
Linux, OpenShift, Kubernetes, Apache Camel, Podman, Ansible, Apache CFX, 389 Directory Server, Apache ActiveMQ Public
1
SUSE
Linux, Rancher, NeuVector, K3s, Harvester Private / Private Equity
1
Rocky Linux
Linux Private / SMB
4
Modular AI
LLVM, PyTorch, Tensorflow, ONNX, Core ML Tools Venture / Series A
5
Microsoft
OpenShift, Kubernetes, Redis, Apache Cassandra, PostgreSQL, Jupyter Notebook, Citus, MariaDB, MySQL Public
5
AWS / Amazon
OpenShift, Grafana, MongoDB, Apache Airflow, Kubernetes, Apache Spark, Prometheus, Apache Flink, Apache Kafka, Presto, OpenSearch, Redis, Apache Cassandra, Apache TinkerPop, PostgreSQL, Jupyter Notebook, AWS OpenTelemetry (OTEL), FreeRTOS, MySQL Public
5
IBM
OpenShift, Kubernetes, Calico, containerd, cri-o, Jupyter Notebook, runc Private / SMB
8
CoreDB
Rust, PostgreSQL, CoreDB, Trunk (Postgres) Venture / Seed
9
Yandex
PyTorch, Tensorflow, ClickHouse, Kubernetes, YDB, Elasticsearch, Gitlab, Greenplum Database, Apache Kafka, Apache Hadoop, Apache Hive, Apache HBase, PostgreSQL, Jupyter Notebook, Apache Zepplin, MySQL Public
10
W4 Games
Godot Venture / Seed
11
Tailscale
Wireguard Venture / Series B
12
ClickHouse
ClickHouse Venture / Series B
12
Aiven
ClickHouse, Grafana, Apache Flink, Apache Kafka, OpenSearch, Redis, Apache Cassandra, PostgreSQL, MySQL, InfluxDB, M3 Venture / Series D+
12
Altinity
ClickHouse Venture / Seed
12
ChistaData
ClickHouse Venture / Seed
16
Lightstep
OpenTelemetry (OTEL) Venture / Series C
16
Helios
OpenTelemetry (OTEL) Venture / Seed
16
Timescale
OpenTelemetry (OTEL), Prometheus, PostgreSQL, TimescaleDB Venture / Series C
16
Mezmo
OpenTelemetry (OTEL) Venture / Series D+
16
ObservIQ
OpenTelemetry (OTEL), BindPlane OP Venture / Seed