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ResultsCX Bulgaria

Bulgarian business-process outsourcing enterprise and subsidiary of the UK-based ResultsCX group, operating contact centres in Sofia and Plovdiv.

Last updated September 27, 2026

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Overview

ResultsCX Bulgaria (Bulgarian: „РизълтсСиЕкс България“ ЕАД) is a Bulgarian business-process outsourcing (BPO) enterprise headquartered in Sofia. It is part of the UK-based ResultsCX group, which as of September 2024 was controlled by Rajesh Subramaniam, who lives in India, and Sidharth Parashar, who lives in the United Kingdom. The Bulgarian entity operates as the group's local delivery arm, providing outsourced customer experience and contact-centre services. The company was founded in 2008 under the name Sixty K („Сиксти Кей“) by British entrepreneur Jonathan Gladwish. It grew into a significant Bulgarian outsourcing employer, and in 2022 Gladwish sold the business to ResultsCX. Following the acquisition, the Bulgarian operation was integrated into the ResultsCX brand and network. ResultsCX Bulgaria runs two contact centres, located in Sofia and Plovdiv. These facilities primarily serve clients from Western Europe, the United States and Bulgaria, handling customer service, technical support and related business-process functions. In 2021, before the change of ownership, the enterprise reported sales of 42 million Bulgarian leva and employed around 1,264 people. The Bulgarian subsidiary is one of several international delivery locations within the ResultsCX group, which positions itself as a global customer experience management provider. The Bulgarian operation benefits from the country's multilingual workforce and its position as a near-shore destination for Western European and North American clients.

History

ResultsCX Bulgaria traces its origins to 2008, when British entrepreneur Jonathan Gladwish founded the company under the name Sixty K („Сиксти Кей“). Established as a Bulgarian business-process outsourcing enterprise with its seat in Sofia, Sixty K developed contact-centre operations serving international clients. Over the following years it became a notable employer in Bulgaria's outsourcing sector, with two contact centres in Sofia and Plovdiv. By 2021 the enterprise reported sales of 42 million Bulgarian leva and a workforce of approximately 1,264 employees. Its client base was concentrated in Western Europe, the United States and Bulgaria, reflecting Bulgaria's role as a near-shore outsourcing destination for Western markets. In 2022, Jonathan Gladwish sold the business to ResultsCX, a UK-based customer experience group. Following the acquisition, the Bulgarian company was rebranded and integrated as ResultsCX Bulgaria („РизълтсСиЕкс България“ ЕАД), becoming part of the group's international delivery network. As of September 2024, the ResultsCX group was controlled by Rajesh Subramaniam, resident in India, and Sidharth Parashar, resident in the United Kingdom. The Bulgarian subsidiary continues to operate its two contact centres in Sofia and Plovdiv, providing outsourced customer experience and business-process services to clients in Western Europe, the United States and Bulgaria.

  • 2024

    As of September, ResultsCX group controlled by Rajesh Subramaniam and Sidharth Parashar.

  • 2022

    Sold by Jonathan Gladwish to ResultsCX.

  • 2021

    Reported sales of 42 million Bulgarian leva and about 1,264 employees.

  • 2008

    Founded as Sixty K by Jonathan Gladwish.

Products and positioning

Near-shore BPO and customer experience delivery for Western European, US and Bulgarian clients.

  • Business process outsourcing

  • Contact centre services

  • Customer experience management

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