643 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
Microsoft
OpenShift, Kubernetes, Apache Cassandra, Redis, PostgreSQL, MariaDB, Jupyter Notebook, Citus, MySQL Public
5
AWS / Amazon
OpenShift, Grafana, MongoDB, Apache Airflow, Apache Spark, Prometheus, Apache Flink, Apache Kafka, Kubernetes, OpenSearch, Presto, Apache Cassandra, Redis, PostgreSQL, Apache TinkerPop, AWS OpenTelemetry (OTEL), Jupyter Notebook, MySQL, FreeRTOS Public
5
IBM
OpenShift, Kubernetes, Calico, containerd, cri-o, Jupyter Notebook, runc Private / SMB
8
Tembo
Rust, PostgreSQL, Tembo Stacks, Trunk (Postgres), pgmq Venture / Seed
9
Yandex
PyTorch, ClickHouse, Tensorflow, YDB, Elasticsearch, Gitlab, Apache Kafka, Kubernetes, Greenplum Database, Apache Hadoop, Apache Hive, Apache HBase, PostgreSQL, Jupyter Notebook, MySQL, Apache Zepplin Public
10
Odoo
Odoo Private / Private Equity
11
ClickHouse
ClickHouse Venture / Series B
11
Aiven
ClickHouse, Grafana, Apache Flink, Apache Kafka, OpenSearch, Apache Cassandra, Redis, PostgreSQL, MySQL, InfluxDB, M3 Venture / Series D+
11
Altinity
ClickHouse Venture / Seed
11
ChistaData
ClickHouse Venture / Seed
15
W4 Games
Godot Venture / Seed
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, Elasticsearch, Apache Airflow, Apache Spark, Sentry, Airbyte, Gitlab, Ghost, Renovate, Vault, Apache Kafka, Dagster, Filecoin, Istio, Apache Superset, Grafana Loki, Metabase, MLFlow, Cal.com, Argo CD, Kyverno, etcd, NocoDB, Rook, Argo Workflows, MinIO, Redis, Chatwoot, OpenCost (Formerly KubeCost), Hasura GraphQL Engine, RabbitMQ, PostgreSQL, Crossplane, Knative Serving, Bootstrap, kratos, Oauth2 Proxy, MySQL, InfluxDB, Kubeflow, Jitsu, vaultwarden, ORY Hydra, Plural, dex, Goldilocks
18
Lightstep
OpenTelemetry (OTEL) Venture / Series C
18
Helios
OpenTelemetry (OTEL) Venture / Seed
18
Timescale
OpenTelemetry (OTEL), Prometheus, PostgreSQL, TimescaleDB Venture / Series C