21Tech specializes in custom software development, project management and outsourcing. The company has been involved in the development of projects, such as systems architecture, design and development, automated call center development and system conversions. 21Tech is experienced in working with companies in both the public and private sectors, including the banking, financial, telecommunications, insurance, transportation and consulting industries. Some of its larger clients include SBC Communications, Telcordia, Broadway and Seymor and Nabanco. 21Tech has also partnered with Eaton and Associates to create a joint venture called Xtech, which provides information technology products and services to the city and county of San Francisco and other public sector entities. Established in 1996, 21Tech is a minority-owned business.