Commercial Open Source (COSS) company category missionary. Founder of KubeCon, OSS Capital, Open Core Summit, $COSS ETF + related COSS initiatives. COSS companies are defined as: Any given company that would NOT exist without the parallel co-existence of a given Open Source core technology. Examples: Confluent<>Kafka, Cloudera<>Hadoop, Automattic<>Wordpress, HashiCorp<>Vault, etc.