Materialize, the streaming SQL database company, has raised $40 million in funding. Bucky Moore of Kleiner Perkins led a $32 million Series B round. Lightspeed Venture Partners also participated in the B round after Ravi Mhatre led the Series A investment in 2019. Additional investors include executives from Cockroach Labs, Datadog and Rubrik.

Materialize, is an SQL streaming database for building internal tools, interactive dashboards, and customer-facing experiences. The firm's product builds on top of Timely Dataflow and Differential Dataflow, both created by Materialize co-founder, Frank McSherry.