Companies - OSSRank

Rank	Company	Commercializing	Stage
1	Modular AI	LLVM PyTorch Tensorflow ONNX Core ML Tools	Venture / Series A
2	Rocky Linux	Linux	Private / SMB
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
5	Tembo	Rust vLLM PostgreSQL pgmq pgvector pg_vectorize Trunk (Postgres) pg_auto_dw Tembo Self Hosted pg_tier	Venture / Series A
6	Microsoft	OpenShift Kubernetes Redis PostgreSQL Apache Cassandra MariaDB Jupyter Notebook Citus MySQL	Public
6	IBM	OpenShift Kubernetes Calico containerd cri-o runc Jupyter Notebook	Private / SMB
6	AWS / Amazon	OpenShift Grafana Apache Airflow Kubernetes MongoDB Prometheus Apache Spark Apache Kafka Apache Flink Presto OpenSearch Redis PostgreSQL Apache Cassandra Apache TinkerPop AWS OpenTelemetry (OTEL) Jupyter Notebook MySQL FreeRTOS	Public
9	Yandex	PyTorch ClickHouse Tensorflow YDB Kubernetes Elasticsearch Gitlab Apache Kafka Apache Hive Apache Hadoop PostgreSQL Apache HBase Apache Zepplin Jupyter Notebook MySQL Greenplum Database	Public
10	ChistaData	ClickHouse	Venture / Seed
10	Aiven	ClickHouse Grafana Apache Kafka Apache Flink OpenSearch Redis PostgreSQL Apache Cassandra InfluxDB MySQL M3	Venture / Series D+
10	ClickHouse	ClickHouse	Venture / Series B
10	Altinity	ClickHouse	Venture / Seed
14	W4 Games	Godot	Venture / Seed
15	Timescale	OpenTelemetry (OTEL) Prometheus PostgreSQL TimescaleDB	Venture / Series C
15	Helios	OpenTelemetry (OTEL)	Venture / Seed
15	Lightstep	OpenTelemetry (OTEL)	Venture / Series C
15	Mezmo	OpenTelemetry (OTEL)	Venture / Series D+
15	ObservIQ	OpenTelemetry (OTEL)	Venture / Seed
20	Elastic	Kibana Kubernetes Elasticsearch	Public
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