Companies - OSSRank

Rank	Company	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 389 Directory Server Apache CFX Apache ActiveMQ	Public
2	SUSE	Linux Rancher NeuVector K3s Harvester	Private / Private Equity
2	Rocky Linux	Linux	Private / SMB
5	Tembo	Rust vLLM PostgreSQL Tembo pgmq Trunk (Postgres) pg_vectorize pgvector Tembo Self Hosted pg_tier pg_auto_dw	Venture / Series A
6	Microsoft	OpenShift Kubernetes Apache Cassandra MariaDB Redis PostgreSQL MySQL Jupyter Notebook Citus	Public
6	AWS / Amazon	OpenShift Grafana Apache Airflow MongoDB Kubernetes Apache Spark Prometheus Apache Kafka OpenSearch Presto Apache Flink Apache Cassandra Redis PostgreSQL Apache TinkerPop MySQL AWS OpenTelemetry (OTEL) Jupyter Notebook FreeRTOS	Public
6	IBM	OpenShift Kubernetes Calico containerd cri-o runc Jupyter Notebook	Private / SMB
9	Yandex	PyTorch ClickHouse Tensorflow YDB Elasticsearch Kubernetes Gitlab Apache Kafka Apache Hadoop Apache Hive PostgreSQL Apache HBase MySQL Jupyter Notebook Apache Zepplin Greenplum Database	Public
10	ClickHouse	ClickHouse	Venture / Series B
10	Aiven	ClickHouse Grafana Apache Kafka OpenSearch Apache Flink Apache Cassandra Redis PostgreSQL MySQL InfluxDB 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
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