Global Contact Center Solutions

900 535 865

We accompany your AI on its journey

Experts in growing your AI with expert human support.

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MST Holding

Servicios Globales de Contact Center.

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Best Contact Center 2025

Excellence, innovation and commitment that make the difference.

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Europe awards MST Holding

The biggest awards in the European Contact Center sector.

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Best Customer Experience 2025

Excellence, innovation and commitment that make the difference.

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Europe awards MST Holding

The biggest awards in the European Contact Center sector.

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International Services World Wide

Connecting people since 1992.

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Outsource with control. We integrate Customer Service Backoffice Expert Consulting AI Technology

We govern your Customer Service from start to finish to turn each interaction into real results.

At MST, we don’t just manage calls or tasks. We govern the entire event, from the first interaction to the final closure, under a robust control model.

Inbound

Inbound Call Center and call handling service with a hybrid human + AI model, focused on full resolution, operational efficiency, and reduction of repeat contacts.
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Outbound

Outbound Contact Center service with responsible telesales, dedicated account managers, and artificial intelligence to maximize conversion, legal compliance, and reduce complaints.
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Back office

End-to-end backoffice outsourcing with intelligent automation. We reduce operating costs, backlog, and rework through efficient, traceable BPO focused on measurable results.
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CX Consulting

Customer Experience and Contact Center consulting specialized in the optimization, auditing, and governance of outsourced services to improve efficiency, quality, and customer experience.
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AI Technology

Artificial Intelligence for Call Center and Contact Center that automates processes, controls quality, reduces errors, and improves regulatory compliance with technology applied to BPO.
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Quality and Security Certifications

GDPR
IT Environment
AENOR ISO 9001
ISO 9001
AENOR ISO 14001
ISO 14001
AENOR ISO 18295 Contact Centers
ISO 18295
Applus ISO 22301
ISO 22301
Applus ISO 27001
ISO 27001
Applus ISO 45001
ISO 45001
PCI DSS

A technology company that strictly complies with security in private European data centers

The highest national and international awards in the Contact Center sector

2025 Platinum Awards

First Prize: Best Contact Center 2025

2025 Platinum Awards

First Prize: Best Customer Experience 2025

2025 ECCCSA Awards

Silver Award: Best Employee Experience 2025

2024 ECCCSA Awards

Bronze Award: Most Effective Strategic Transformation Performance 2024

With more than 30 years of experience in Contact Center BPO and Customer Support

MST operates in sectors where operational stability and brand reputation are critical.

Dedicated to a wide variety of sectors

HVAC

BPO and Contact Center specialized in HVAC to outsource technical after-sales, optimize diagnostics, reduce visits, and improve operational efficiency and customer experience.
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Health & Pharma

BPO Contact Center for the Health and Pharma sector with operational governance, healthcare compliance, AI, patient care, pharmacy campaigns, and regulated outsourcing.
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Utilities & Telecom

A Utilities and Telecom-specialized Contact Center and BPO that integrates responsible sales, customer service, and back office with operational control, stable KPIs, and regulatory compliance.
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Case Studies

How we turn complex operations into competitive advantages

Discover how we help companies in critical sectors regain control of their outsourced services. Each case study shows how our end-to-end governance model solves real problems of saturation, inefficiency, and operational risk, generating tangible impact on cost, quality, and sustainable growth.