645 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, Apache Camel, Podman, Kubernetes, Ansible, Apache CFX, Apache ActiveMQ, 389 Directory Server Public
2
SUSE
Linux, Rancher, NeuVector, K3s, Harvester Private / Private Equity
2
Rocky Linux
Linux Private / SMB
5
Tembo
Rust, PostgreSQL, Tembo, Trunk (Postgres), pgmq Venture / Series A
6
Microsoft
OpenShift, Kubernetes, Apache Cassandra, PostgreSQL, Redis, MariaDB, Jupyter Notebook, Citus, MySQL Public
6
AWS / Amazon
OpenShift, Grafana, MongoDB, Apache Airflow, Apache Spark, Prometheus, Apache Kafka, Apache Flink, Kubernetes, Presto, OpenSearch, Apache Cassandra, PostgreSQL, Redis, Apache TinkerPop, AWS OpenTelemetry (OTEL), Jupyter Notebook, FreeRTOS, MySQL Public
6
IBM
OpenShift, Kubernetes, Calico, containerd, cri-o, runc, Jupyter Notebook Private / SMB
9
Yandex
PyTorch, ClickHouse, Tensorflow, YDB, Elasticsearch, Gitlab, Apache Kafka, Kubernetes, Greenplum Database, Apache Hadoop, Apache Hive, Apache HBase, PostgreSQL, Jupyter Notebook, Apache Zepplin, MySQL 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
Odoo
Odoo Private / Private Equity
16
Grafana Labs
Grafana, Prometheus, Grafana Mimir, Grafana Loki, Grafana Tempo, Cortex for Prometheus, Grafana Faro Web SDK, Grafana Phlare Venture / Series D+
16
Plural
Grafana, Apache Airflow, Elasticsearch, Apache Spark, Sentry, Airbyte, Gitlab, NocoDB, Vault, Dagster, Renovate, Apache Kafka, Grafana Loki, Apache Superset, Filecoin, Metabase, Ghost, Istio, Cal.com, MLFlow, Argo CD, etcd, MinIO, Crossplane, Argo Workflows, Kyverno, Hasura GraphQL Engine, Rook, Chatwoot, RabbitMQ, PostgreSQL, OpenCost (Formerly KubeCost), Redis, Knative Serving, InfluxDB, Bootstrap, vaultwarden, kratos, dex, Oauth2 Proxy, Jitsu, ORY Hydra, MySQL, Kubeflow, Plural, Goldilocks
18
Lightstep
OpenTelemetry (OTEL) Venture / Series C
18
Helios
OpenTelemetry (OTEL) Venture / Seed
18
Timescale
OpenTelemetry (OTEL), Prometheus, PostgreSQL, TimescaleDB Venture / Series C