648 Open Core Companies

Rank Name Commercializing Stage
1
Modular AI
LLVM, PyTorch, Tensorflow, ONNX, Core ML Tools Venture / Series A
2
RedHat (IBM)
Linux, OpenShift, Kubernetes, Apache Camel, Podman, Ansible, Apache CFX, 389 Directory Server, Apache ActiveMQ Public
2
SUSE
Linux, Rancher, NeuVector, K3s, Harvester Private / Private Equity
2
Rocky Linux
Linux Private / SMB
5
Microsoft
OpenShift, Kubernetes, Apache Cassandra, PostgreSQL, MariaDB, Redis, Jupyter Notebook, Citus, MySQL Public
5
AWS / Amazon
OpenShift, Grafana, Kubernetes, MongoDB, Apache Airflow, Apache Spark, Prometheus, Apache Kafka, Apache Flink, OpenSearch, Presto, Apache Cassandra, PostgreSQL, Redis, AWS OpenTelemetry (OTEL), Apache TinkerPop, Jupyter Notebook, FreeRTOS, MySQL Public
5
IBM
OpenShift, Kubernetes, Calico, containerd, cri-o, runc, Jupyter Notebook Private / SMB
8
Tembo
Rust, vLLM, PostgreSQL, Tembo, pgmq, Trunk (Postgres), pgvector, pg_tier, pg_vectorize, Tembo Self Hosted, pg_auto_dw Venture / Series A
9
Yandex
PyTorch, ClickHouse, Tensorflow, YDB, Kubernetes, Elasticsearch, Gitlab, Apache Kafka, Apache Hadoop, Apache HBase, Apache Hive, PostgreSQL, Greenplum Database, Jupyter Notebook, MySQL, Apache Zepplin Public
10
ClickHouse
ClickHouse Venture / Series B
10
Aiven
ClickHouse, Grafana, Apache Kafka, Apache Flink, OpenSearch, Apache Cassandra, PostgreSQL, Redis, InfluxDB, MySQL, M3 Venture / Series D+
10
Altinity
ClickHouse Venture / Seed
10
ChistaData
ClickHouse Venture / Seed
14
W4 Games
Godot 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