Teleca is a privately held company, wholly owned by STG (Symphony Technology Group), which supplies software services to the mobile communications industry. Teleca offers engineering solutions across the entire value chain of design, development, testing of mobile device services, applications, operating systems, and embedded systems. As of 2010, the company has some 1800 employees in 11 countries.

Teleca started out as an engineering partner to Ericsson in 2001, and rapidly expanded its customer base to cover many of the leading mobile device vendors such as Nokia, Motorola and SonyEricsson.

In 2004 Teleca established a new office in Łodz, Poland and acquired Telma Soft, Russia in 2006. In 2008, Teleca opened up centers in India and China.

In 2008, STG a private equity firm made a 100% buyout of Teleca and delisted it from the Stockholm stock exchange.

In 2012, Symphony Services Corporation merged with Teleca, creating Symphony Teleca Corporation with a focus to helping clients manage the global convergence of software, the cloud and mobility.

Romesh T. Wadhwani is the founder and chairman of Symphony Technology Group, a private equity firm investing in software and software services companies. As of April 27, 2010, the Symphony Technology Group’s portfolio companies include: Capco; SymphonyIRI Group (formerly Information Resources, Inc.), Inc.; MSC Software; Symphony Services;Teleca; Netik; Lawson Software; and Aldata. Combined, these companies have over $2 billion in revenue and 15,000 employees worldwide. STG sold Symphony Marketing Solutions (SMS) to Genpact 2010.

In 1991, Wadhwani founded B2B software firm Aspect Development, maker of software that helps clients track internal spending, inventory and buying habits. Wadhwani also served as chairman and chief executive officer of this business-to-business e-commerce company. Wadhwani sold Aspect to Sanjiv Sidhu's i2 Technologies for $9.3 billion, the largest merger in software history. From June 2000, when the merger occurred, until September 2002, Wadhwani served as vice chairman and a director of i2.