Call Centre Outsourcing Vendors: Complete Comparison & Selection Guide

Selecting the right call centre outsourcing vendors is the single most important decision for your programme's success. With 200+ call centre outsourcing vendors operating globally, choosing poorly can cost you millions in failed implementations and customer dissatisfaction.

This guide reviews the top call centre outsourcing vendors and provides evaluation criteria so you select the right partner.

The Call Centre Outsourcing Vendors Landscape

Call centre outsourcing vendors fall into five categories:

Tier 1: Large Multinational Call Centre Outsourcing Vendors

• 10,000+ agents globally

• Multiple countries and languages

• Fortune 500 clients

• Premium pricing (€1.20-€2.00/call)

• Examples: TTEC, Atos, Sitel

Tier 2: Mid-Market Call Centre Outsourcing Vendors

• 1,000-5,000 agents

• 2-5 countries

• Mid-market clients

• Mid-range pricing (€0.90-€1.30/call)

• Examples: HubSpot-certified partners, regional specialists

Tier 3: Specialist Call Centre Outsourcing Vendors

• <1,000 agents

• Single country focus

• Industry-specific expertise

• Competitive pricing (€0.70-€1.00/call)

• Examples: Niche providers (fintech, e-commerce focused)

Tier 4: Budget Call Centre Outsourcing Vendors

• High volume, low quality

• Minimal training

• Poor SLAs

• Rock-bottom pricing (€0.40-€0.70/call)

• ⚠️ Not recommended: Quality often unacceptable

Tier 5: Hybrid Call Centre Outsourcing Vendors

• Blend AI + human agents

• Flexible models

• Emerging market

Each call centre outsourcing vendors category serves different needs. Choose based on budget and quality requirements, not lowest price alone.

Top Call Centre Outsourcing Vendors Reviewed

1. TTEC Holdings

Headquarters: Denver, USA
Global Presence: 15 countries, 60,000+ agents
Specialisation: Omnichannel (voice, chat, email)

Strengths of TTEC Call Centre Outsourcing Vendors:

• Industry-leading AI integration

• GDPR + ISO 27001 certified

• 24/7 support for call centre outsourcing clients

• Dedicated account management

Weaknesses of TTEC Call Centre Outsourcing Vendors:

• Expensive (€1.50-€2.00/call)

• Long-term contracts required

• Complex onboarding for call centre outsourcing

Best For: Large enterprises needing AI-driven call centre outsourcing vendors

Pricing: €1,500-€3,000/month (minimum 10 agents)

2. Atos Customer Engagement Services

Headquarters: Paris, France
Global Presence: 20+ countries, 80,000+ agents
Specialisation: Multilingual support, banking/finance

Strengths of Atos Call Centre Outsourcing Vendors:

• European data centers (GDPR-friendly)

• ISO 27001 certified

• Financial services expertise

• Predictive analytics for call centre outsourcing

Weaknesses of Atos Call Centre Outsourcing Vendors:

• Premium pricing for call centre outsourcing vendors

• Bureaucratic processes

• Minimum team size requirements

Best For: Financial services firms needing call centre outsourcing vendors with compliance expertise

Pricing: €1,800-€2,500/month (minimum 15 agents)

3. Sitel

Headquarters: Nashville, USA
Global Presence: 30+ countries, 100,000+ agents
Specialisation: Tech support, omnichannel

Strengths of Sitel Call Centre Outsourcing Vendors:

• Largest global footprint of call centre outsourcing vendors

• Technology-forward platform

• Excellent training programmes

• Real-time dashboards

Weaknesses of Sitel Call Centre Outsourcing Vendors:

• Expensive call centre outsourcing vendor option

• Large minimum commitments

• Complex contracts

Best For: Tech companies and Fortune 500 firms requiring call centre outsourcing vendors

Pricing: €1.40-€1.90/call (volume-dependent)

4. Turk Telecom Call Centre Outsourcing Vendors

Headquarters: Istanbul, Turkey
Global Presence: Europe-focused, 5,000+ agents
Specialisation: Multilingual European support

Strengths:

• Affordable European call centre outsourcing vendors option

• EU-based (easier GDPR compliance)

• Multilingual agents

• Flexible contracts

Weaknesses:

• Smaller agent pool than global call centre outsourcing vendors

• Limited tech capabilities vs. Tier 1

• Language-specific strength over technical support

Best For: European SMEs seeking budget-conscious call centre outsourcing vendors

Pricing: €0.70-€1.00/call

5. Conduent

Headquarters: New Jersey, USA
Global Presence: 12 countries, 40,000+ agents
Specialisation: Government, healthcare, utilities

Strengths:

• Public sector compliance expertise (call centre outsourcing vendors)

• Highly regulated industry experience

• ISO certifications

• Stability

Weaknesses:

• Limited tech innovation vs. call centre outsourcing vendors like TTEC

• Slow implementation timelines

• Rigid processes

Best For: Government and healthcare organisations needing call centre outsourcing vendors

Pricing: €1.20-€1.70/call

6. Pinnacle Contact Centers (Philippines-Based)

Headquarters: Manila, Philippines
Global Presence: Philippines, USA, UK (call centre outsourcing hub)
Specialisation: BPO, multilingual support

Strengths of Pinnacle Call Centre Outsourcing Vendors:

• Extremely cost-effective call centre outsourcing vendors option

• English-proficient agents

• 24/7 operations

• Flexible scaling

Weaknesses of Pinnacle Call Centre Outsourcing Vendors:

• Quality inconsistency among call centre outsourcing vendors

• Less formal certifications

• Training-dependent

Best For: Budget-conscious SMEs accepting some quality variance with call centre outsourcing vendors

Pricing: €0.60-€0.90/call

7. Sutherland Global Services

Headquarters: Rochester, USA
Global Presence: 20+ countries, 50,000+ agents
Specialisation: Tech, e-commerce, financial services

Strengths:

• Strong technology integration (call centre outsourcing vendors)

• E-commerce expertise

• Predictive analytics

• Scalability

Weaknesses:

• Mid-to-premium pricing among call centre outsourcing vendors

• Complex contract terms

• Learning curve for implementation

Best For: Tech and e-commerce companies using call centre outsourcing vendors

Pricing: €1.00-€1.50/call

8. Webhelp

Headquarters: Paris, France
Global Presence: 35+ countries, 60,000+ agents
Specialisation: Digital customer experience

Strengths:

• Omnichannel expertise (chat, email, social)

• Digital-native platform

• Strong in continental Europe (call centre outsourcing vendors)

• Modern technology stack

Weaknesses:

• Premium pricing for call centre outsourcing vendors

• Minimum team commitments

• Contract rigidity

Best For: Digital-first companies using call centre outsourcing vendors

Pricing: €1.10-€1.70/call

9. Amtiv Technologies (India-Based)

Headquarters: Bangalore, India
Global Presence: India, Philippines, USA (call centre outsourcing expansion)
Specialisation: IT support, healthcare

Strengths:

• Highly technical agent pool (call centre outsourcing vendors)

• IT support expertise

• Cost-effective call centre outsourcing

• 24/5/365 operations

Weaknesses:

• Accent challenges for some English-speaking markets

• Less formal than Tier 1 call centre outsourcing vendors

• Quality variability

Best For: Tech support and IT-focused call centre outsourcing vendors

Pricing: €0.50-€0.80/call

10. Apac Customer Services (Australia-Based)

Headquarters: Sydney, Australia
Global Presence: Australia, NZ, Asia-Pacific (expanding call centre outsourcing vendors)
Specialisation: English-language support, SMEs

Strengths:

• APAC timezone advantage (call centre outsourcing vendors)

• Fluent English speakers

• SME-friendly

• Flexible contracts

Weaknesses:

• Smaller agent pool than global call centre outsourcing vendors

• Premium for APAC-based call centre outsourcing

• Limited European presence

Best For: APAC companies or English-language support (call centre outsourcing vendors)

Pricing: €0.80-€1.20/call

How to Evaluate Call Centre Outsourcing Vendors

Criterion 1: Compliance & Certifications

Every call centre outsourcing vendors partnership must include:

• ✅ GDPR compliance (non-negotiable)

• ✅ ISO 9001 (quality management)

• ✅ ISO 27001 (information security)

• ✅ Industry certifications (healthcare: HIPAA; finance: PCI-DSS)

If call centre outsourcing vendors lack these, walk away.

Criterion 2: Trial Period

Reputable call centre outsourcing vendors always offer:

• 2-4 week pilot program

• 10-20% of call volume during pilot

• No minimum commitment

• Weekly performance reviews

If call centre outsourcing vendors refuse, they lack confidence.

Criterion 3: SLA Guarantees

Quality call centre outsourcing vendors guarantee:

• Answer Rate: 85%+ within 20 seconds

• Abandonment Rate: <5%

• First Contact Resolution: 75%+

• CSAT: 8.0+/10

• Availability: 99.5%+

Ask to see call centre outsourcing vendors' SLA documentation. Don't accept vague promises.

Criterion 4: Pricing Transparency

Trustworthy call centre outsourcing vendors provide:

• Per-call rates (€0.60-€2.00 depending on tier)

• No hidden setup fees

• Clear infrastructure costs

• Overage rates in writing

Compare call centre outsourcing vendors apples-to-apples using identical call volumes.

Criterion 5: Technology Stack

Modern call centre outsourcing vendors should offer:

• Cloud-based phone system

• CRM integration (Salesforce, HubSpot, etc.)

• Call recording and quality monitoring

• Real-time dashboards

• API access for custom integrations

Outdated call centre outsourcing vendors using legacy systems will frustrate you.

Criterion 6: Client References

Always contact existing call centre outsourcing vendors clients:

• Ask about quality consistency

• Request CSAT scores

• Enquire about scaling experience

• Question call centre outsourcing vendors' responsiveness

If call centre outsourcing vendors refuse references, that's a red flag.

Criterion 7: Training & Support

Superior call centre outsourcing vendors provide:

• 40+ hours initial training per agent

• Ongoing monthly coaching

• Weekly performance reviews

• Proactive escalation support

Poor call centre outsourcing vendors skimp on training, leading to failures.

Call Centre Outsourcing Vendors: Pricing Comparison Table

Red Flags When Evaluating Call Centre Outsourcing Vendors

Avoid call centre outsourcing vendors that:

🚩 Refuse trial periods = Lack confidence in service quality
🚩 Won't provide references = Something to hide
🚩 Vague on pricing = Hidden fees coming
🚩 No GDPR certification = Legal risk
🚩 Promise unrealistic SLAs = Setting you up for disappointment
🚩 Push long-term contracts = Lock-in strategy
🚩 Pressure quick decisions = Sales pressure over fit
🚩 Outsource to unknown subcontractors = Loss of control

Selection Process: 6-Step Framework for Call Centre Outsourcing Vendors

Step 1: Define Requirements (Week 1)

• Call volume and type

• Required languages

• Industry-specific needs (finance, healthcare, etc.)

• Budget per call

Step 2: Shortlist Call Centre Outsourcing Vendors (Week 2)

• Request proposals from 5-8 call centre outsourcing vendors

• Score on compliance, pricing, technology

• Narrow to 3 call centre outsourcing vendors finalists

Step 3: Conduct Detailed Evaluations (Week 3)

• Request detailed SLA documentation

• Check client references for each call centre outsourcing vendors option

• Assess technology stack fit

• Review contract terms

Step 4: Run Pilot Programmes (Week 4-5)

• Execute 2-week pilots with 2 call centre outsourcing vendors

• Route 10% of calls to each

• Monitor quality daily

• Collect team feedback

Step 5: Compare Results (Week 6)

• Analyse call centre outsourcing vendors pilot metrics

• Review team feedback

• Calculate cost per call achieved

• Assess satisfaction

Step 6: Finalise Contract (Week 7+)

• Negotiate terms with top call centre outsourcing vendors choice

• Ensure SLAs are in writing

• Get GDPR compliance in writing

• Begin knowledge transfer

Common Mistakes with Call Centre Outsourcing Vendors

Mistake 1: Choosing by Price Alone Cheapest call centre outsourcing vendors often deliver cheapest quality. Budget 15-20% more for quality.

Mistake 2: Skipping Pilots Never commit to call centre outsourcing vendors without a trial. Pilots reveal hidden issues.

Mistake 3: Insufficient Due Diligence Don't trust call centre outsourcing vendors' marketing claims. Verify with independent references.

Mistake 4: Ignoring Scalability Your chosen call centre outsourcing vendors must grow with you. Ask about capacity limits.

Mistake 5: Overlooking Data Security GDPR breaches cost millions. Only use call centre outsourcing vendors with ISO 27001 certification.

The Future of Call Centre Outsourcing Vendors

Emerging trends in call centre outsourcing vendors:

AI Integration: Leading call centre outsourcing vendors now blend AI chatbots (handling 30-40% of queries) with human agents.

Hybrid Models: Call centre outsourcing vendors increasingly offer flexibility: Some agents in-house, some outsourced, all orchestrated together.

Specialisation: Rather than generic call centre outsourcing vendors, niche providers specialise in vertical markets (fintech, health-tech, e-commerce).

Quality Over Volume: Progressive call centre outsourcing vendors focus on FCR and CSAT, not just call volume.

MaaSil's Vendor Matching Service

Rather than evaluating 200+ call centre outsourcing vendors yourself, MaaSil does it for you:

• Pre-vetted Network: We've audited 50+ call centre outsourcing vendors

• Custom Matching: We recommend 3 call centre outsourcing vendors based on your specific needs

• Pilot Management: We oversee your 2-week trial with call centre outsourcing vendors

• Contract Negotiation: We ensure your contract protects you

• Ongoing Oversight: We monitor call centre outsourcing vendors performance quarterly

On average, MaaSil clients save 25% on call centre outsourcing vendor costs whilst improving quality.

Need help selecting the right call centre outsourcing vendors? Contact MaaSil for a free vendor assessment.