What are the Top Third-Party Verification Companies Worldwide 2026-2027?
Providers independently verifying sales and consent, often in telecom and energy. Compare verified providers worldwide, see typical 2026-2027 pricing and use our checklist to pick the right partner.
Worldwide view: Clutch-verified Third-Party Verification Companies ordered by verified client reviews, followed by established industry leaders. Choose a country to see companies for that market.
- 1
Leadium
Las Vegas, NV
- Min. project
- $1,000+
- Hourly rate
- < $25 / hr
- Team size
- 50 - 249
Main services: Sales Outsourcing, Call Center Services, Content Marketing
- 2
Top Virtual Assistant
Philadelphia, PA
- Min. project
- $1,000+
- Hourly rate
- Undisclosed
- Team size
- 50 - 249
Main services: Back Office Outsourcing, Content Writing Services +2, Search Engine Optimization
- 3
Appointment Setter Online
New York, NY
- Min. project
- $1,000+
- Hourly rate
- Undisclosed
- Team size
- 1,000 - 9,999
Main services: Sales Outsourcing, Back Office Outsourcing, Call Center Services
- 4
Moneypenny USA
Duluth, GA
- Min. project
- Undisclosed
- Hourly rate
- < $25 / hr
- Team size
- 250 - 999
Main services: Call Center Services, Back Office Outsourcing, Customer Service Outsourcing
- 5
Everhelp
Kyiv, Ukraine
- Min. project
- $5,000+
- Hourly rate
- < $25 / hr
- Team size
- 1,000 - 9,999
Main services: Customer Service Outsourcing, Back Office Outsourcing, Call Center Services +1
- 6
Outsourced
Quezon City, Philippines
- Min. project
- Undisclosed
- Hourly rate
- Undisclosed
- Team size
- 1,000 - 9,999
Main services: Back Office Outsourcing, Customer Service Outsourcing, Finance & Accounting Outsourcing (FAO)
- 7
Horatio
Location not published
- Min. project
- $5,000+
- Hourly rate
- < $25 / hr
- Team size
- 1,000 - 9,999
Main services: Customer Service Outsourcing, Back Office Outsourcing, Call Center Services
- 8
Socobee
Sheridan, WY
- Min. project
- $5,000+
- Hourly rate
- $25 - $49 / hr
- Team size
- 10 - 49
Main services: Custom Software Development, Mobile App Development +7, Call Center Services
- 9
Pathway Communications
Markham, Canada
- Min. project
- $1,000+
- Hourly rate
- $150 - $199 / hr
- Team size
- 50 - 249
Main services: IT Managed Services, Call Center Services, Cybersecurity +1
- 10
InfraWeb Manage Services Provider
București, Romania
- Min. project
- $1,000+
- Hourly rate
- Undisclosed
- Team size
- 50 - 249
Main services: Call Center Services, Customer Service Outsourcing
Established industry leaders worldwide
- 11
Teleperformance (TP)
Headquarters: Paris, France
Why listed: Established Call Centers firm operating internationally.
- 12
Concentrix
Headquarters: Newark, California, USA
Why listed: Established Call Centers firm operating internationally.
- 13
Foundever
Headquarters: Luxembourg
Why listed: Established Call Centers firm operating internationally.
- 14
Alorica
Headquarters: Irvine, California, USA
Why listed: Established Call Centers firm operating internationally.
- 15
TTEC
Headquarters: Englewood, Colorado, USA
Why listed: Established Call Centers firm operating internationally.
- 16
TELUS Digital
Headquarters: Vancouver, Canada
Why listed: Established Call Centers firm operating internationally.
About Third-Party Verification providers
Providers independently verifying sales and consent, often in telecom and energy.
Call center companies handle inbound and outbound customer conversations by phone, chat and email. Agent quality, training and reporting matter more than raw headcount.
Business services providers range from global outsourcing groups in the Philippines, India, South Africa and Latin America to local firms that must be licensed in the country where you operate.
How to choose the best Third-Party Verification Companies in 2026-2027
- Ask about recording and audit trails.
- Listen to call recordings or mystery-shop them.
- Ask about agent training, attrition and QA scoring.
- Check reporting on handle time, resolution and satisfaction.
What does it cost?
Outsourced call centers commonly charge $8-$15 per agent hour offshore, $25-$65 onshore, or per-minute and per-call pricing for answering services.
Before you sign
Ask for a written proposal with scope, milestones, team members and exit terms, and speak to at least one current client of each shortlisted provider.
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Third-Party Verification Companies by country
Frequently asked questions
What are the top Third-Party Verification Companies in 2026-2027?
Our 2026-2027 shortlist of Third-Party Verification Companies includes verified providers such as Leadium, Top Virtual Assistant, Appointment Setter Online, Teleperformance (TP), Concentrix. Use the country selector to see only firms based in your country.
What do Third-Party Verification Companies do?
Providers independently verifying sales and consent, often in telecom and energy. Call center companies handle inbound and outbound customer conversations by phone, chat and email.
How much do Third-Party Verification services cost in 2026-2027?
Outsourced call centers commonly charge $8-$15 per agent hour offshore, $25-$65 onshore, or per-minute and per-call pricing for answering services. Prices vary by scope, seniority and location, so ask at least three providers for written proposals.
How do I choose the right Third-Party Verification Company?
Ask about recording and audit trails. Listen to call recordings or mystery-shop them. Ask about agent training, attrition and QA scoring.
How were these Third-Party Verification Companies selected?
The worldwide view lists Clutch-verified specialists (registered businesses independently verified on Clutch with working websites, ordered by verified client reviews as of November 2026) and established industry leaders. When you choose a country, the main list shows only companies based in that country or with an office there: Clutch-verified firms with a local office, plus established local firms selected by the iCreativez research team. International firms are shown in a separate, labelled section. Inclusion is free and not paid for.
How this list is compiled
Worldwide view: Clutch-verified specialists (registered businesses independently verified on Clutch with a working website, ordered by their number of verified client reviews) followed by established industry leaders. Country view: the main list is strictly local. It shows only Clutch-verified firms with an office in the selected country and established firms based in that country that the iCreativez research team selected for their scale and track record. Large international firms and remote teams that serve the country appear in a separate, labelled section and are never counted as local. Where we have not yet verified enough local firms, the page says so instead of padding the list. Minimum project size, hourly rates and team size are as published by each company in November 2026. Inclusion is free and not paid for. Providers can request a review via our contact page.