Callbox Singapore Awards & Recognition

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Discover how our accomplishments set us apart in the B2B lead generation industry

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Top B2B Appointment Setting Services 2025

Placed 6th out of 1,289 companies in Clutch’s B2B Appointment Setting Services rankings.

Top Appointment Setting Services Clutch

Full Review

Best Lead Generation Companies 2025

Acknowledged as a top lead generation company, securing the 8th spot out of 2,600+ providers in Clutch’s 2025 rankings.

Top Lead Generation Companies & Services Clutch

Full Review

Best Call Centers for Financial Companies 2025

Distinguished as a top performer, ranking 8th among 900+ companies in Clutch’s Best Call Centers for Financial Companies.

Top Call Center Companies & Services for Fintech Clutch

Full Review

Best Sales Outsourcing for Financial Services 2025

Earned a top position, placing 11th in Clutch’s list of 460+ Best Sales Outsourcing Companies for Financial Services.

Top B2B Sales Outsourcing Companies for the Financial Services Industry Clutch

Full Review

Best Appointment Setting for Financial Services 2025

Recognized among the elite, holding the 13th spot in Clutch’s exclusive ranking of the Best Appointment Setting Providers for Financial Services.

Top Appointment Setting Services for the Financial Services Industry Clutch

Full Review

Best Lead Generation for Financial Services 2025

Secured a top ranking, placing 5th among 400+ providers in Clutch’s Best Lead Generation Services for Financial Services.

Top Lead Generation Companies for the Financial Services Industry Clutch

Full Review

Best Lead Qualification Services for IT Industry 2025

Ranked 10th among 580+ providers in Clutch’s Best Lead Qualification Services for IT industry.

Top Lead Qualification Services for the IT Services Industry Clutch

Full Review

Best B2B Sales Outsourcing Companies for the IT Industry 2025

Ranked 11th among 580+ companies in Clutch’s Best B2B Sales Outsourcing for IT industry.

Top B2B Sales Outsourcing Companies for the IT Services Industry Clutch

Full Review

Best Appointment Setting Provider for IT Companies 2025

Ranked 17th among 380+ providers in Clutch’s Best Appointment Setting Services for IT industry.

Top Appointment Setting Services for the IT Services Industry Clutch

Full Review

Best Lead Generation Services for the IT Services 2025

Ranked 9th among 500+ companies in Clutch’s Best Lead Generation Services for IT.

Top Lead Generation Companies for IT Services Industry Clutch

Full Review

Best Healthcare Lead Qualification Service Providers 2025

Ranked 8th among 350+ providers in Clutch’s Best Healthcare Lead Qualification Services.

Top Lead Qualification Services for Healthcare Providers Clutch

Full Review

Best Healthcare Appointment Setting Services Providers 2025

Ranked 12th among 200+ providers in Clutch’s Best Appointment Setting Services.

Top Appointment Setting Services for Healthcare Providers Clutch

Full Review

Best Healthcare B2B Sales Outsourcing Services 2025

Ranked 9th among 350+ providers in Clutch’s Best Healthcare B2B Sales Outsourcing Services.

Top B2B Sales Outsourcing Companies for Healthcare Providers Clutch

Full Review

Best Healthcare Lead Generation Services 2025

Ranked 6th among 300+ providers in Clutch’s Best Healthcare Lead Generation Services.

Top Lead Generation Companies for Healthcare Providers Clutch

Full Review

Top-rated Contact Center Outsourcing Service Providers 2025

Ranked 18th among the 6000+ companies and agencies listed in Clutch's call center lists.

Call Center Companies & Agencies Clutch

Full Review

Top Call Center Companies in California 2025

Acknowledged as one of the leading call center agencies in California.

Top 10 Call Center Companies in California HiredSupport

Full Review

Best Lead Generation Services 2025

Ranked 7th among 600+ providers in G2’s Lead Generation Services listings.

Best Lead Generation Companies G2

Full Review

Best Third Party Verification Agencies 2025

Ranked 10th in The Manifest’s "best of March" list of top 100 third-party verification agencies.

Top 100 Third Party Verification Companies The Manifest

Full Review

Best Southeast Asia BPO Services 2025

Ranked 3rd in The Manifest’s "best of March" list of top 100 BPO companies in Southeast Asia.

Top 100 Business Processes Outsourcing (BPO) Companies in SE Asia The Manifest

Full Review

Best Voice Services Providers on the Market 2025

Ranked 7th in The Manifest’s "best of March" list of top 100 voice service providers for 2025.

Top 100 Call Center Services The Manifest

Full Review

Top Appointment Setting Company since 2004

Callbox has been recognized by Outsource Accelerator as one of the top appointment setting company since 2004.

Top 50 lead generation companies worldwide Outsource Accelerator

Full Review

Top Lead Generation Services since 2004

Callbox has been ranked 14th out of 50 companies by Outsource Accelerator as one of the top leadgen companies worldwide.

Top 50 lead generation companies worldwide Outsource Accelerator

Full Review

Top Lead Qualification Company

Callbox has been recognized—with a badge—by Clutch as one of the top lead qualification company.

Top Lead Generation Companies & Services Clutch

Full Review

Top Lead Generation Company

Callbox has been ranked 11th by Clutch as the top sales outsourcing B2B lead generation companies in 2024.

Top Lead Generation Companies & Services Clutch

Full Review

Top Lead Generation Companies in the USA

Callbox has been recognized as one of the best lead generation companies in the US in 2024.

10 Best Lead Generation Companies in the USA For 2024 Saleshandy

Full Review

Top Lead Generation Service in the US

Callbox ranks 4th as the best United States Lead Generation Services Provider.

Top 100 Lead Generation Companies in the United States The Manifest

Full Review

Top Lead Generation Service in Los Angeles

Callbox ranks 1st as the best Los Angeles Lead Generation Services Provider.

Top 50 Lead Generation Companies in Los Angeles The Manifest

Full Review

Top Largest Lead Generation Company in the US

Callbox has been recognized as one of the largest lead generation companies in the USA.

The Top Lead Generation Companies in the US – 2024 FirstPageSage

Full Review

Top Manufacturing Lead Generation Service Provider

Callbox has been recognized as one of the top manufacturing lead generation provider.

The Top B2B Lead Generation Companies in 2024 FirstPageSage

Full Review

The Top B2B Lead Generation Agency

Callbox has been ranked 6th out of 80+ companies as the best lead generation agency in 2024.

The Top B2B Lead Generation Companies in 2024 FirstPageSage

Full Review

Best Overall Company

Callbox has been recognized as the best company who offers the best overall value for companies looking for help to generate qualified leads.

7 Best Lead Generation Companies in 2024 Selling Signal

Full Review

Best Lead Generation Services Provider 2023

Callbox ranks 1st out of 427 companies in the best lead generation service provider category.

Best Lead Generation Services G2

Full Review

Most Popular Lead Generation Company 2023

Callbox ranks 7th out of 427 companies in the popular lead generation company category

Best Lead Generation Services G2

Full Review

Top Lead Generation Company in the US 2023

Callbox ranks 2nd out of 20 firms as one of the top lead generation companies in the US.

Top 20 Lead Generation Companies in the US list Outsource Accelerator

Full Review

Customer Satisfactory Lead Generation Company 2023

Callbox ranks 4th out of 427 companies in the customer satisfaction category

Best Lead Generation Services G2

Full Review

Best Overall for a Mix of Core and Advanced Offerings 2023

Callbox ranks 1st out of 6 firms as the leading provider of the best B2B lead generation services.

6 Best B2B Lead Generation Companies in 2023 Selling Signals

Full Review

Most Recommended B2B Lead Generation Agency 2023

Callbox ranks 4th out of 917 firms as the best lead generation company.

Top Lead Generation Companies & Services Clutch

Full Review

Best B2B Lead Generation Companies 2023

Callbox ranks 5th out of 13 firms as the best B2B lead generation companies.

13 Best B2B Lead Generation Companies To Look For In 2023 UnboundB2B

Full Review

Best Call Center Company Around the World in 2023

Callbox ranks 2nd out of 1594 companies as the best call center company for your business.

Call Center Companies in 2023 CallHippo

Full Review

Best Call Center Company in America for 2023

Callbox ranks first out of 25 companies as the best call center company in America.

25 Best Call Center in America CallHippo

Full Review

Top Lead Generation Companies in 2023

Callbox ranks 3rd out of 9 companies as one of the top lead generation companies you need to know.

30 Lead Generation Companies to Know Built In

Full Review

Best Database Solutions and Virtual Event Marketing Provider 2023

Callbox ranks 9th out of 11 firms as the best lead generation company.

Top 11 Best Lead Generation Companies In 2023 Software Testing Help

Full Review

The Best Lead Generation Companies and Services 2023

Callbox ranks 2nd out of 7 firms and is recommended by QuickSprout as one of the best lead generation companies and services.

The Best Lead Generation Companies and Services Quicksprout

Full Review

Best B2B Lead Generation Companies 2023

Callbox ranks 4th out of 30 firms as one of the top B2B lead generation companies.

Top 10 B2B Lead Generation Companies in 2023 SuperbCompanies

Full Review

Top B2B Lead Generation Companies in the United States

Callbox ranks 2nd out of 10 companies as the top B2B lead generation companies in the United States.

10 Best B2B Lead Generation Companies VSynergize

Full Review

Top Lead Generation Services Provider in California

Callbox ranks 10th out of 113 firms as the top lead generation service provider in California.

Top Lead Generation Companies in California GoodFirm

Full Review

Best Third Party Verification Services 2023

Callbox ranks 2nd out of 22 companies as the best third-party verification service.

Top Third Party Verification Companies DesignRush

Full Review

Best B2B Sales Outsourcing Services Provider 2023

Callbox ranks 2nd out of 42 companies as the best B2B sales outsourcing service provider.

Top B2B Sales Outsourcing Companies DesignRush

Full Review

Best Telemarketing Firms 2023

Callbox ranks 6th out of 117 firms as the best telemarketing companies.

Top Telemarketing Companies DesignRush

Full Review

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