Silk

Silk (formerly known as Kaminario) is an Israeli-American cloud data platform company founded in 2008 by Dani Golan. Originally focused on all-flash storage hardware under the Kaminario brand, the company pivoted entirely to software and rebranded as Silk in 2020. The company maintains its global headquarters in Needham, Massachusetts, with its primary R&D center located in Yokneam Illit, Israel. Silk operates as a private company, having raised a $55M Series B funding round in 2021 led by S Capital. The core product is a virtualization layer that sits between public cloud infrastructure and enterprise databases to increase performance and reduce compute costs.

(Note: The Israeli tech market also included a cybersecurity startup named Silk Security, which was acquired by Armis in April 2024 for $150M; this profile focuses on the independent cloud data platform, Silk).

The flagship product is the Silk Data Platform. It solves a specific infrastructure problem: migrating heavy, mission-critical relational databases—such as Oracle and Microsoft SQL Server—to public clouds (AWS, Google Cloud, and Microsoft Azure) often results in degraded performance or excessive cloud resource costs. Silk acts as a software abstraction layer that aggregates underlying cloud block storage. This enables high IOPS and throughput, allowing enterprises to run heavy database workloads in the cloud without refactoring their applications.