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), pg_vectorize, pgmq, pgvector, Tembo Self Hosted, pg_tier, pg_auto_dw 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, Citus, Jupyter Notebook, MySQL Public
3
AWS / Amazon
OpenShift, Grafana, Apache Airflow, Kubernetes, Prometheus, Apache Spark, Apache Kafka, Apache Flink, Presto, OpenSearch, Apache Cassandra, PostgreSQL, Redis, MongoDB, 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, Kubernetes, Elasticsearch, Gitlab, Apache Kafka, Apache Hadoop, PostgreSQL, Apache Hive, Apache HBase, Jupyter Notebook, MySQL, Apache Zepplin, 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
Odoo
Odoo Private / Private Equity
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
W4 Games
Godot Venture / Seed