Led · Debt Financing · May 2025

ClickHouse offers a high-performance, open-source columnar database that powers real-time analytics at massive scale, delivered both as self-managed software and the fully managed ClickHouse Cloud service. The platform emphasizes exceptional query speed, high concurrency, and cost efficiency, making it well-suited for customer-facing products and data-intensive AI systems. The company reports serving more than 3,000 customers on ClickHouse Cloud and achieving over 250 percent year-over-year ARR growth, with users such as Capital One, Sony, Tesla, Meta, and Airwallex. Recent strategic moves include acquiring Langfuse to add large-language-model (LLM) observability capabilities and launching a native, enterprise-grade Postgres service integrated with ClickHouse to unify transactional and analytical workloads. Product enhancements now support data lake formats like Apache Iceberg and Delta Lake, expanded full-text search, and lightweight updates to meet AI-driven application demands. ClickHouse continues global expansion through new partnerships in Japan and with Microsoft Azure, and it has hosted large community events across major tech hubs. The company positions itself as a unified data platform and AI observability layer for modern, real-time applications.

Led · Series A · May 2014

Observable Networks provides network security technology and advanced threat detection services that identify compromised and misused networked devices currently escaping detection by other network security tools. Its Dynamic Endpoint Modeling technology combines automated security analytics with real-time traffic sensors to continuously model all devices on networks of any size. The platform is delivered as a cloud-based service incorporating those real-time sensors and automated analytics. Led by CEO Bryan Doerr, the company focuses on detecting devices that evade traditional security solutions. Observable Networks closed $2M in convertible debt financing from MK Capital and said it will use the funds to increase sales and marketing and raise awareness of its endpoint modeling technology and cloud service. The company is based in St. Louis, Missouri. Observable Networks develops network security technology and advanced threat-detection services that identify compromised and misused devices that escape other security tools. Its core product is a dynamic endpoint-modeling technology delivered via a cloud-based service platform that combines automated security analytics with real-time traffic sensors. The platform continuously models all devices on networks of any size to surface anomalous or malicious activity. The company was founded in 2011 by CEO Bryan Doerr and is based in St. Louis, MO. Observable intends to use new capital to fund its sales and marketing team and raise awareness of its endpoint modeling technology in the IT security market. Financially, the company has been raising institutional capital, including a prior $2.45M Series A1 in May 2014. Observable Networks offers a cloud-based Network Security-as-a-Service platform built on its Continuous Device Profiling (CDP) technology, which uses real-time traffic sensors and automated analytics to model device behavior across networks. The service is indifferent to encryption, does not rely on threat signatures, and requires no hardware purchases or software agents, simplifying SaaS deployment. Observable’s platform scales from hundreds to millions of devices and includes managed security solutions for enterprise and SMB customers as well as industrial control and SCADA networks. The company plans to use recent funding to expand sales, marketing, and product development, recruit engineering and channel development talent, and bring its security capabilities to broader markets and geographies. Observable is headquartered in St. Louis, Missouri. Including the latest round, the company has secured more than $4 million to date to develop and enhance its CDP technology and service offerings.