Over the coming years, Teleca's telecom software was utilized by Motorola, Racal, Digital, GEC, Hewlett-Packard, Psion, and Siemens.

[2] In early 2000, it was acquired by Sigma AB, a leading Swedish engineering services business, and became its UK subsidiary.

[citation needed] Following the takeover, Teleca expanded their workforce from 2,500 across Europe into a number of countries including Łódź, Poland and Seoul, South Korea.

[citation needed] Teleca then acquired Telma Soft in 2006, a Russian-based software company.

[3] Symphony Technology Group announced in 2008 that they had acquired Teleca and delisted it from the Stockholm stock exchange.

Following the acquisition, Sanjay Dhawan took over as CEO and Pradeep Rathinam was appointed as Aditi's president.

[citation needed] In 2015, it was announced that Harman International Industries were interested in acquiring Symphony Teleca.

[13] Teleca was rebranded Harman Connected Services, with a focus on producing software for all Harman-related products.