Callbox Singapore Ranks Among Top 500 BPO Firms Worldwide


Sustainable success isn’t a solitary journey. It rather hinges on team effort and a multi-faceted approach that combines time, experience, and hard work. Collaboration and knowledge sharing within the industry enables teams to leverage their members’ diverse strengths and expertise, creating a dynamic environment that supports the achievement of goals. 

Callbox Singapore is proud to announce our inclusion in the prestigious ranking of the world’s top 500 Business Process Outsourcing (BPO) firms, ranking 383rd in the most recent OA500.

OA500, managed by Outsource Accelerator (OA), is a trusted platform providing independent information, advisory services, and expert BPO implementation. As the top aggregator marketplace for outsourcing, OA connects leading outsourcing suppliers with businesses worldwide. The OA500 Index ranks the top 500 global outsourcing firms objectively, giving businesses a reliable tool to assess and compare these firms confidently. 

Explore: Callbox Singapore’s Client Reviews and Testimonials

This rigorous ranking process involves thorough research over months, using a fair and comprehensive scoring methodology. It reflects our team’s dedication and reinforces our commitment to delivering exceptional service to our clients.

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We sincerely thank our valued clients, both past and present, for their trust and feedback, which have played a crucial role in earning us this prestigious recognition as a top BPO leader.

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Moving forward, our commitment to continuous improvement remains steadfast. We aim to enhance our services further by leveraging our dedicated team, innovative platforms, and refined processes to provide exceptional sales and marketing opportunities for businesses of all sizes.

At Callbox, we serve as your dedicated sales and marketing team. Feel free to explore our services or reach out to us to discuss how we can collaborate for mutual growth.