649 Open Core Companies

Rank Name Commercializing Stage
1
Modular AI
LLVM, PyTorch, Tensorflow, ONNX, Core ML Tools Venture / Series A
2
Tembo
Rust, vLLM, PostgreSQL, Tembo, Trunk (Postgres), pgmq, pgvector, pg_vectorize, pg_auto_dw, pg_tier, Tembo Self Hosted Venture / Series A
3
RedHat (IBM)
OpenShift, Linux, Kubernetes, Apache Camel, Podman, Ansible, 389 Directory Server, Apache CFX, Apache ActiveMQ Public
3
Microsoft
OpenShift, Kubernetes, Apache Cassandra, MariaDB, PostgreSQL, Redis, Jupyter Notebook, Citus, MySQL Public
3
AWS / Amazon
OpenShift, Grafana, MongoDB, Apache Airflow, Kubernetes, Apache Spark, Prometheus, Apache Kafka, Apache Flink, Presto, OpenSearch, Apache Cassandra, PostgreSQL, Redis, AWS OpenTelemetry (OTEL), 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, Apache Kafka, Gitlab, Apache Hadoop, PostgreSQL, Apache Hive, Apache HBase, Jupyter Notebook, Apache Zepplin, MySQL, Greenplum Database 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
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