Introduction
Call volume rarely arrives on a predictable schedule. A home improvement contractor gets slammed with inbound calls after a storm. A health insurance agency sees inquiries spike during open enrollment. Building and staffing an internal team for every peak is expensive, which is why more US businesses now outsource some or all of their call handling rather than scaling headcount in-house.
But outsourcing isn't a decision to make on price alone. Choosing a provider based on the cheapest rate or the most recognizable logo can backfire if the service scope, agent training, technology stack, compliance posture, or reporting don't match what your business actually needs.
This guide breaks down what call center outsourcing covers, compares five established providers serving the US market, walks through the criteria that matter most during selection, and explains how traditional outsourcing differs from performance-based call acquisition models like Pay Per Call and live transfers.
Key Takeaways
- Call center outsourcing spans inbound support, outbound sales, technical help, lead qualification, appointment setting, and order processing
- The "best" provider depends on your industry, call volume, required channels, and compliance needs, not reputation alone
- Compare total cost, quality assurance, reporting, and scalability instead of focusing on headline rates
- Conventional outsourced support and performance-based call acquisition solve fundamentally different problems
Overview of Call Center Outsourcing Services in the US Market
Call center outsourcing means contracting an external company to manage phone-based customer, sales, or support interactions. This is distinct from contact center outsourcing, a broader term that includes email, chat, SMS, and social media alongside voice. If your customers expect consistent service across channels, you need the latter, not just a phone vendor.
Service Categories That Drive Outcomes
Most providers organize their offerings around a few core functions:
- Inbound support: order processing, help desk, technical support, after-hours coverage, and overflow handling during peak periods
- Outbound campaigns: sales, renewals, surveys, collections, appointment setting, lead qualification, and retention calls
- Omnichannel operations: reporting, quality assurance, CRM integration, workforce management, and escalation handling across touchpoints
Delivery Models Worth Understanding
Before comparing vendors, it helps to know the structural choices they offer:
- Shared vs. dedicated agents: shared staff cost less but split attention across clients; dedicated teams cost more and focus solely on your brand
- Onshore, nearshore, or offshore delivery: onshore for sensitive data and regulation, nearshore for cost and time-zone balance, offshore for lower-cost transactional work, per TTEC
- Full, partial, or hybrid outsourcing: many companies keep complex or high-value conversations in-house while outsourcing routine volume
Roughly 45% of contact centers outsource at least some workload, primarily to control operating costs and expand service capability, according to ICMI's 2024 survey.
That same research found half of outsourcers struggle to preserve brand voice and values once work moves externally. Raise that governance question before you sign.
Conventional customer-service outsourcing also differs from performance-based call acquisition. If your goal is qualified inbound calls or live transfers rather than handled support tickets, you need a different kind of partner. Pricing models like Pay Per Call apply instead of per-minute or per-agent fees.
The providers below should be measured against service fit, industry experience, technology, delivery model, and commercial transparency. None of them are interchangeable.
Top Call Center Outsourcing Services in the US
The following comparison covers five established providers with verified US-market operations. Scale figures and certifications are dated snapshots from current public filings and company materials.
Always confirm current offerings, pricing, and compliance scope with the provider before signing.
Teleperformance
Teleperformance operates at massive scale, with nearly 490,000 employees across almost 100 countries as of December 2024, according to Teleperformance's 2024 report. In the US, the company focuses on government CX programs and healthcare support, with nearshore delivery primarily through Mexico.
Teleperformance tends to fit large enterprises that need multilingual, high-volume coverage across voice, chat, email, and social channels, plus AI-assisted translation tools for global programs.
| Category | Details |
|---|---|
| Service scope | Customer care, technical support, sales/acquisition, back-office operations; best fit for enterprise-scale, multilingual programs |
| Delivery & technology | Global delivery with US-facing government and healthcare operations; AI-assisted multilingual support |
| Pricing & compliance | ISO 27001, PCI DSS, and HITRUST referenced at the parent level; request site-specific audit scope and a program quote |
Concentrix
Concentrix runs approximately 455,000 employees across 483 locations in 74 countries, per its Concentrix 2025 filing. The company offers inbound and outbound customer care, multilingual technical support, and back-office automation.
Its FY2025 investment in agentic AI, including the iX Hero tool, suits buyers who want automation on top of human agents rather than a pure headcount play.
| Category | Details |
|---|---|
| Service scope | Inbound/outbound customer care, technical support, front- and back-office automation |
| Delivery & technology | Worldwide delivery centers serving US clients; conversational AI and analytics tools |
| Pricing & compliance | PCI DSS 4.0.1, ISO 27001:2022, SOC 2 Type II, HITRUST CSF disclosed; verify entity-level scope and request a fixed-unit quote |
TTEC
TTEC moved its principal place of business to Austin, Texas in early 2025 and reports roughly 51,000 professionals across 22 countries. Its outsourcing arm, TTEC Engage, covers omnichannel care, acquisition, retention, technical support, and fraud mitigation.
TTEC distinguishes its outsourced Engage division from TTEC Digital, its technology and transformation consulting arm. If you want staffed agents rather than a software project, make sure you're evaluating the right division.
| Category | Details |
|---|---|
| Service scope | Omnichannel care, acquisition/retention, technical support, fraud mitigation, back-office work |
| Delivery & technology | US onshore plus Mexico, Colombia, Costa Rica, Honduras, India, and the Philippines; AI-enabled operations |
| Pricing & compliance | Per-minute, per-hour, per-FTE, per-transaction, and per-call contract units disclosed; confirm current SOC/PCI certifications directly |
Foundever
Foundever, headquartered in Luxembourg, reports around 130,000 employees across 45 delivery countries. US delivery includes domestic operations plus Mexico, Colombia, Costa Rica, and other Latin American sites, giving buyers flexibility between onshore and nearshore staffing.
It markets inbound and outbound sales programs for B2B and B2C clients, plus collections and multilingual support. That mix fits retention-focused campaigns well.
| Category | Details |
|---|---|
| Service scope | Customer care, technical support, collections, sales/retention; explicit B2B and B2C outbound programs |
| Delivery & technology | US, Canada, Mexico, Colombia, Costa Rica, and other Latin American sites; EverAssist and Ever GPT automation tools |
| Pricing & compliance | ISO 27001/2:2022, PCI assurance, SSAE 18 SOC 1/SOC 2 referenced; version details vary by document, so request current program-level evidence |
Alorica
Alorica, founded in 1999 and headquartered in Irvine, California, reports 100,000-plus employees across 17 countries. Its CX2GO offering, launched in May 2025, packages deployments of 50 or fewer agents with QA, training, and an account manager on schedules from 8x5 to 24/7.
That positions Alorica well for mid-sized brands that want a turnkey, smaller-footprint program rather than a full enterprise rollout.
| Category | Details |
|---|---|
| Service scope | Customer care, technical support, revenue generation; CX2GO suits smaller, fast-growing programs |
| Delivery & technology | US, Canada, Latin America, India, and the Philippines; evoAI and Knowledge IQ translation tools |
| Pricing & compliance | CX2GO advertises transparent pricing with no public rate card; security certifications require direct vendor verification |
How We Chose the Best Call Center Outsourcing Services
"Best" is conditional. A provider built for a large omnichannel enterprise may be the wrong fit for a smaller advertiser that only needs qualified inbound calls or live transfers. This comparison relied on current provider filings, service pages, and independent industry assessments, not unverified rankings or customer logos.
Service and Operational Fit
Match your actual workload to what a provider demonstrably handles:
- Confirm channel coverage: inbound, outbound, technical, appointment-setting, and after-hours needs
- Check staffing model: dedicated teams for complex programs, shared agents for routine, lower-stakes volume
- Verify language and time-zone alignment with your customer base
- Ask about peak-volume handling and how quickly the provider can scale up or down
Technology, Quality, and Security
Everest Group's 2025 PEAK Matrix assessment evaluated 61 providers across market success and capability. It is a useful screening tool, not a substitute for your own RFP, according to Everest Group's 2025 assessment. When vetting a shortlist, require evidence of:
- CRM, telephony, and workforce management integration
- Call monitoring, coaching, and documented quality assurance processes
- Data protection controls and applicable compliance certifications (PCI, HIPAA, SOC 2)
- Business continuity and incident response plans
Define which KPIs matter for your use case before you sign anything:
| KPI | What to specify in the contract |
|---|---|
| Service level | % of contacts answered within an agreed wait threshold |
| First-call resolution | % of issues resolved during the initial interaction |
| Abandonment rate | Queued contacts disconnected before answer, with short-abandon exclusions defined |
| Quality score | Rubric-based accuracy and compliance rating with agreed weighting |
Commercial Fit and Launch Readiness
Pricing structures vary widely, from per-minute and per-agent models to project-based or performance-based arrangements. Before comparing quotes, normalize for:
- Setup, training, and technology fees
- Minimum-volume commitments and after-hours surcharges
- Knowledge transfer, scripting, and pilot-testing processes
- Data ownership and transition-back terms if you end the contract
For lead-generation advertisers specifically, evaluate call validation rules, recording consent, geographic targeting, and CRM delivery separately, since these determine lead quality more than agent headcount ever will.
Conclusion
The right call center outsourcing partner aligns with your customer journey, compliance obligations, and growth plans, not just its name recognition or the lowest line-item quote. Before you expand any relationship:
- Build a shortlist
- Request comparable proposals
- Check references
- Run a controlled pilot
Sometimes your actual need isn't conventional outsourcing at all. Performance Media Strategies operates differently: rather than staffing a support desk, the company runs a multi-channel Pay Per Call network spanning radio, TV, print, internet, mobile, and call center affiliates.
That network generates qualified leads and live transfers for advertisers. Compensation is tied to delivered results, so you pay for outcomes rather than agent hours.
This model suits businesses like home improvement contractors, health insurance agencies, and moving companies that need a steady flow of intent-driven inbound calls rather than a team to handle existing support volume. If that sounds closer to what your business needs, Performance Media Strategies offers a free consultation to discuss a results-driven campaign built around your goals.
Frequently Asked Questions
How much does it cost to outsource a call center?
Cost depends on service type, call volume, agent location, language requirements, and pricing structure (per-minute, per-agent, or project-based). Always request an itemized quote and ask specifically about setup or usage fees.
What is contact center outsourcing?
It's the practice of hiring an external provider to manage customer, sales, or support communications. Unlike a voice-only call center, a contact center typically covers email, chat, SMS, and social channels too.
What services do contact centers provide?
Common services include inbound support, technical assistance, order handling, outbound sales, appointment setting, lead qualification, surveys, retention campaigns, and back-office work.
What does an outbound call center do?
Outbound teams place calls for sales, renewals, surveys, collections, appointment setting, or live transfers. Any outbound campaign should follow FTC telemarketing rules, including Do Not Call compliance and calling-hour restrictions.
Are outsourced call centers profitable?
Profitability depends on your use case, conversion outcomes, service quality, and total contract cost. Compare contribution margin and customer outcomes, not just the hourly labor rate.
Are telemarketing and telesales the same?
Telemarketing is a broader promotional activity used to generate interest or leads, while telesales focuses specifically on closing a sale over the phone. A single campaign can include both.
