645 Open Core Companies

Rank Name Commercializing Stage
1
Modular AI
LLVM, PyTorch, Tensorflow, ONNX, Core ML Tools Venture / Series A
2
Tembo
Rust, PostgreSQL, Tembo, Trunk (Postgres), pgmq Venture / Series A
3
RedHat (IBM)
OpenShift, Linux, Kubernetes, Apache Camel, Podman, Ansible, Apache CFX, Apache ActiveMQ, 389 Directory Server Public
3
Microsoft
OpenShift, Kubernetes, Apache Cassandra, PostgreSQL, Redis, MariaDB, Citus, Jupyter Notebook, MySQL Public
3
AWS / Amazon
OpenShift, Grafana, MongoDB, Apache Airflow, Kubernetes, Apache Spark, Prometheus, Apache Flink, Apache Kafka, OpenSearch, Presto, Apache Cassandra, PostgreSQL, AWS OpenTelemetry (OTEL), Redis, Apache TinkerPop, Jupyter Notebook, FreeRTOS, MySQL Public
3
IBM
OpenShift, Kubernetes, Calico, containerd, cri-o, runc, Jupyter Notebook Private / SMB
7
SUSE
Linux, Rancher, NeuVector, K3s, Harvester Private / Private Equity
7
Rocky Linux
Linux Private / SMB
9
Yandex
PyTorch, ClickHouse, Tensorflow, YDB, Elasticsearch, Kubernetes, Gitlab, Apache Kafka, Greenplum Database, Apache Hadoop, Apache Hive, Apache HBase, PostgreSQL, Jupyter Notebook, Apache Zepplin, MySQL Public
10
W4 Games
Godot Venture / Seed
11
ClickHouse
ClickHouse Venture / Series B
11
Aiven
ClickHouse, Grafana, Apache Flink, Apache Kafka, OpenSearch, Apache Cassandra, PostgreSQL, Redis, InfluxDB, MySQL, M3 Venture / Series D+
11
Altinity
ClickHouse Venture / Seed
11
ChistaData
ClickHouse Venture / Seed
15
Lightstep
OpenTelemetry (OTEL) Venture / Series C
15
Helios
OpenTelemetry (OTEL) Venture / Seed
15
Timescale
OpenTelemetry (OTEL), Prometheus, PostgreSQL, TimescaleDB Venture / Series C
15
Mezmo
OpenTelemetry (OTEL) Venture / Series D+
15
ObservIQ
OpenTelemetry (OTEL), BindPlane OP Venture / Seed
20
Odoo
Odoo Private / Private Equity