Cask.co operates in the data analytics and big data market, providing an open-source platform known as the Cask Data Application Platform (CDAP). CDAP is designed to simplify and accelerate the development of data analytics applications by offering easy-to-use abstractions over complex technologies. This allows developers, business analysts, and data scientists to focus on deriving insights and business value rather than dealing with infrastructure and integration challenges.

The platform is highly versatile, supporting deployment on major public cloud providers such as Amazon Web Services, Microsoft Azure, and Google Cloud Platform, as well as on-premises on Apache Hadoop-based clusters. This flexibility enables clients to choose the deployment model that best suits their needs, whether they are large enterprises or smaller organizations.

Cask.co's business model revolves around providing a robust, extensible framework that includes reusable templates, which significantly reduce the time to value for its clients. By breaking down data silos and enabling a 'build once, run anywhere' approach, CDAP helps organizations accelerate their data analytics projects and achieve quicker insights.

Revenue is generated through a combination of support services, consulting, and possibly enterprise-level features or subscriptions that offer enhanced capabilities and support.

Keywords: open-source, data analytics, big data, cloud integration, Apache Hadoop, application development, reusable templates, data silos, business insights, extensible framework.