Recognition & Accolades
Awards and Recognition
Discover how our accomplishments set us apart in the B2B lead generation industry
88+Awards & Recognitions
51+Recognising Bodies
20+Years of Excellence
Callbox ranks #3 among top B2B lead generation agencies as of May 2026. Trusted for enterprise outreach.
Best B2B Lead Generation Agencies 2026 (Honest Reviews)
Miniloop
Best B2B Lead Generation Agencies
Read ArticleCallbox secured a spot among TechBehemoths' top B2B lead generation companies worldwide.
Top Companies providing B2B Lead Generation services:
TechBehemoths
Top Companies providing B2B Lead Generation
Read ArticleEarned a top 2 position, among the top 10 B2B Lead Generation Companies for Cybersecurity Firms in 2026
Top 10 B2B Lead Generation Companies for Cybersecurity Firms in 2026
Intent Amplify
Top B2B Lead Generation Companies for Cybersecurity Firms
Read ArticleCallbox ranks #1 out of 8 cold calling agencies, earning top trust for B2B outreach.
8 Best Cold Calling Agencies in 2026
Utmost Agency
Best Cold Calling Agencies
Read Article🏆 Callbox ranks #1 among call-center-led global appointment-setting firms, recognized for B2B excellence.
Top 20 Lead Generation Companies for 2026 (Expert Guide)
Blueprint Demand
Global Appointment-Setting Leader for Call-Center-Led B2B Growth
Read ArticleCallbox ranks 4th in ViB Tech’s 2026 list of top cybersecurity lead gen agencies, recognized for global multi-channel SDR expertise and high intent appointment setting.
12 Top Cybersecurity Lead Generation Agencies for 2026
ViB Tech
Top Cybersecurity Lead Generation Agencies
Read ArticleCallbox secured #4 out of 10 ranking among B2B appointment setting firms, trusted for global lead generation.
10 Best B2B Appointment Setting Companies in 2026
Profitbl
Best B2B Appointment Setting Companies
Read ArticleCallbox is recognized and secured placement among top B2B lead agencies for performance-based growth
Best Performance Based B2B Lead Generation Agencies 2026
SaaSHero
Best Performance Based B2B Lead Generation Agencies
Read ArticleCallbox earned Clutch recognition as of May 2026 for trusted B2B lead generation services.
Top Lead Generation Companies & Services
Clutch
Lead Generation Companies & Services
Read ArticleRecognized industry leader Callbox stands out in top appointment setting agencies for B2B growth.
Best Appointment Setting Agencies in 2026 and How to Choose the Right One
ThePod.fm
Best Appointment Setting Agencies
Read ArticleCallbox ranks No. 4 among 15 B2B appointment setting companies, trusted for multi-channel outbound.
Top B2B Appointment Setting Companies: 15 Best Services Compared [2026]
DemandNexus
Top B2B Appointment Setting Companies
Read ArticleCallbox recognized among top qualified appointment setting agencies, securing industry trust and rankings
In-House vs Outsourced: Choosing the Right Qualified Appointment Setting Services in 2026
Martal Group
The Right Qualified Appointment Setting Services
Read ArticleCallbox ranks No. 4 out of 24 lead generation companies, recognized for trusted B2B growth and leadership.
24 Best Lead Generation Companies to Fill Your Sales Pipeline in 2026
Bookyourdata
Best Lead Generation Companies
Read ArticleRecognized by Built In among top lead generation companies as of Jan 2026, Callbox drives B2B growth.
28 Top Lead Generation Companies to Know
Built In
Top Lead Generation Companies
Read ArticleCallbox secured top 5 placement among lead generation firms, recognized for ABM and global B2B outreach excellence.
23 Lead Generation Companies 2026 [Tools & Agencies]
Cognism
Best B2B Lead Generation Companies
Read ArticleRecognized by Revnew, Callbox is placed among leading appointment setting companies with strong authority.
Top 8 Appointment Setting Companies in 2026
REVNEW
Top Appointment Setting Companies
Read ArticleCallbox ranked #5 among top appointment setting companies, trusted for high-quality B2B leads that convert fast.
15 Best Appointment Setting Companies Helping Sales Teams Win in 2026
Abstrakt
Best Appointment Setting Companies
Read ArticleCallbox acknowledged as a top provider in B2B appointment setting, trusted for consistent pipeline growth.
B2B Appointment Setting Services: 11 Best for 2026
Prospeo
B2B Appointment Setting Services:
Read ArticleCallbox ranks #8 of 15 B2B appointment setting companies, recognized for global omnichannel lead generation.
15 Best Appointment Setting Companies for B2B [2026 Rankings]
Leads at Scale
Best Appointment Setting Companies for B2B
Read ArticleCallbox ranked among leading appointment setting firms, acknowledged for scalable B2B lead generation performance.
Appointment Setting Companies – 12 Best Picks for 2026
SalesBread
Best Appointment Setting Companies
Read ArticleAs of May 2026, DesignRush acknowledged Callbox for trusted B2B telemarketing and lead generation services.
Top Telemarketing Companies
DesignRush
Top Telemarketing Companies
Read ArticleRecognized among the world’s top 50 lead generation companies, Callbox secured No. 14 as of February 2026.
Top 50 lead generation companies worldwide
Outsource Accelerator
Top Lead Generation Companies Worldwide
Read ArticleCallbox ranked 16th out of 100 top lead generation companies by The Manifest as of May 2026.
Top 100 Lead Generation Companies
The Manifest
Top Lead Generation Companies
Read ArticleRanked among the best appointment setting companies, Callbox earned a top 10 spot as of February 2026.
Top 10 Appointment Setting Companies (Ranked & Reviewed)
Outbound Sales Pro
Top Appointment Setting Companies
Read ArticleRecognized in Smartfinds Marketing’s 2026 list, Callbox ranks No. 5 of 10 B2B lead gen firms.
10 Best B2B Business Lead Generation Companies for 2026
SmartFinds Marketing
Best B2B Business Lead Generation
Read ArticleDistinguished in 2026 Whatech Top 10 list, Callbox earned recognition among leading B2B appointment setting companies.
Top 10 B2B Appointment Setting Companies to Know in 2026
WhaTech
Top B2B Appointment Setting Companies
Read ArticleAcknowledged as a top lead generation company, Callbox delivers reliable B2B leads and meetings.
15 Best Lead Generation Companies in 2026 (Tested & Compared)
Kanbox
Best Lead Generation Companies
Read ArticleCallbox earned Clutch recognition for appointment setting with strong reviews and consistent lead generation results
Top Appointment Setting Services
Clutch
Top Appointment Setting Services
Read ArticleCallbox placed among top B2B appointment setting agencies with strong global multichannel capabilities.
Top B2B Appointment Setting Agencies in 2026
SalesCaptain
Top B2B Appointment Setting Agencies
Read ArticleCallbox ranked among top SaaS lead generation companies for enterprise ABM and multi-region campaigns.
Best SaaS Lead Generation Companies for 2026
Prospeo
Best SaaS Lead Generation Companies
Read ArticleCallbox ranked as a top lead generation company by Leadfeeder. Build your B2B pipeline with our proven strategies.
Best Lead Generation Companies in 2026
Leadfeeder
Best Lead Generation Companies
Read ArticleCallbox ranked 3 of 10 in outsourced appointment setting services, recognized for B2B excellence.
Best Outsourced Appointment Setting Services in 2026
Fundraise Insider
Best Outsourced Appointment Setting Services
Read ArticleCallbox secured top ranking on Prospeo’s B2B lead generation companies list for global outreach excellence.
Best B2B Lead Generation Companies & Tools (2026 List)
Prospeo
Best B2B Lead Generation Companies & Tools
Read ArticleCallbox secured 5th place out of 19 top lead generation companies, distinguished for B2B performance.
19 Best Lead Generation Companies in 2026
Thrive
Best Lead Generation Companies
Read ArticlePerceptric acknowledged Callbox among the best B2B lead generation agencies as of April 2026.
10 Best B2B Lead Generation Agencies With Proven Track Record
Perceptric
Best B2B Lead Generation Agencies
Read ArticleCallbox earns recognition among leading B2B lead providers as of March 2026 for proven outreach results.
7 B2B Lead Providers For Sales Outreach
Instantly
B2B Lead Providers For Sales Outreach
Read ArticleCallbox secures #4 of 10 in top lead gen rankings, distinguished for high-performing B2B lead generation.
Top 10 Lead Generation Companies in 2026 for High Quality Prospects
Right Left Agency
Top Lead Generation Companies
Read ArticleCallbox ranks among the top B2B lead generation agencies in 2026. Earned recognition for scalable, trusted global lead generation.
Top 5 B2B Lead Generation Agencies That’ll Actually Fill Your Pipeline in 2026
Leads Monkey Ltd
Top B2B Lead Generation Agencies
Read ArticleCallbox ranked among top B2B SaaS lead gen firms, recognized for scaling pipeline excellence.
5 Best B2B SaaS Lead Generation Experts to Scale Your Pipeline in 2026
GrowthSpree
Best B2B SaaS Lead Generation Experts
Read ArticlePlaced 6th out of 1,289 companies in Clutch’s B2B Appointment Setting Services rankings.
Top B2B Appointment Setting Services 2025
Clutch
Top Appointment Setting Services
Read ArticleAcknowledged as a top lead generation company, securing the 8th spot out of 2,600+ providers in Clutch’s 2025 rankings.
Best Lead Generation Companies 2025
Clutch
Top Lead Generation Companies & Services
Read ArticleDistinguished as a top performer, ranking 8th among 900+ companies in Clutch’s Best Call Centers for Financial Companies.
Best Call Centers for Financial Companies 2025
Clutch
Top Call Center Companies & Services for Fintech
Read ArticleEarned a top position, placing 11th in Clutch’s list of 460+ Best Sales Outsourcing Companies for Financial Services.
Best Sales Outsourcing for Financial Services 2025
Clutch
Top B2B Sales Outsourcing Companies for the Financial Services Industry
Read ArticleRecognized among the elite, holding the 13th spot in Clutch’s exclusive ranking of the Best Appointment Setting Providers for Financial Services.
Best Appointment Setting for Financial Services 2025
Clutch
Top Appointment Setting Services for the Financial Services Industry
Read ArticleSecured a top ranking, placing 5th among 400+ providers in Clutch’s Best Lead Generation Services for Financial Services.
Best Lead Generation for Financial Services 2025
Clutch
Top Lead Generation Companies for the Financial Services Industry
Read ArticleRanked 10th among 580+ providers in Clutch’s Best Lead Qualification Services for IT industry.
Best Lead Qualification Services for IT Industry 2025
Clutch
Top Lead Qualification Services for the IT Services Industry
Read ArticleRanked 11th among 580+ companies in Clutch’s Best B2B Sales Outsourcing for IT industry.
Best B2B Sales Outsourcing Companies for the IT Industry 2025
Clutch
Top B2B Sales Outsourcing Companies for the IT Services Industry
Read ArticleRanked 17th among 380+ providers in Clutch’s Best Appointment Setting Services for IT industry.
Best Appointment Setting Provider for IT Companies 2025
Clutch
Top Appointment Setting Services for the IT Services Industry
Read ArticleRanked 9th among 500+ companies in Clutch’s Best Lead Generation Services for IT.
Best Lead Generation Services for the IT Services 2025
Clutch
Top Lead Generation Companies for IT Services Industry
Read ArticleRanked 8th among 350+ providers in Clutch’s Best Healthcare Lead Qualification Services.
Best Healthcare Lead Qualification Service Providers 2025
Clutch
Top Lead Qualification Services for Healthcare Providers
Read ArticleRanked 12th among 200+ providers in Clutch’s Best Appointment Setting Services.
Best Healthcare Appointment Setting Services Providers 2025
Clutch
Top Appointment Setting Services for Healthcare Providers
Read ArticleRanked 9th among 350+ providers in Clutch’s Best Healthcare B2B Sales Outsourcing Services.
Best Healthcare B2B Sales Outsourcing Services 2025
Clutch
Top B2B Sales Outsourcing Companies for Healthcare Providers
Read ArticleRanked 6th among 300+ providers in Clutch’s Best Healthcare Lead Generation Services.
Best Healthcare Lead Generation Services 2025
Clutch
Top Lead Generation Companies for Healthcare Providers
Read ArticleRanked 18th among the 6000+ companies and agencies listed in Clutch's call center lists.
Top-rated Contact Center Outsourcing Service Providers 2025
Clutch
Call Center Companies & Agencies
Read ArticleAcknowledged as one of the leading call center agencies in California.
Top Call Center Companies in California 2025
HiredSupport
Top 10 Call Center Companies in California
Read ArticleRanked 7th among 600+ providers in G2’s Lead Generation Services listings.
Best Lead Generation Services 2025
G2
Best Lead Generation Companies
Ranked 10th in The Manifest’s "best of March" list of top 100 third-party verification agencies.
Best Third Party Verification Agencies 2025
The Manifest
Top 100 Third Party Verification Companies
Ranked 3rd in The Manifest’s "best of March" list of top 100 BPO companies in Southeast Asia.
Best Southeast Asia BPO Services 2025
The Manifest
Top 100 Business Processes Outsourcing (BPO) Companies in SE Asia
Ranked 7th in The Manifest’s "best of March" list of top 100 voice service providers for 2025.
Best Voice Services Providers on the Market 2025
The Manifest
Top 100 Call Center Services
Callbox has been recognized by Outsource Accelerator as one of the top appointment setting company since 2004.
Top Appointment Setting Company since 2004
Outsource Accelerator
Top 50 lead generation companies worldwide
Callbox has been ranked 14th out of 50 companies by Outsource Accelerator as one of the top leadgen companies worldwide.
Top Lead Generation Services since 2004
Outsource Accelerator
Top 50 lead generation companies worldwide
Callbox has been recognized—with a badge—by Clutch as one of the top lead qualification company.
Top Lead Qualification Company
Clutch
Top Lead Generation Companies & Services
Read ArticleCallbox has been ranked 11th by Clutch as the top sales outsourcing B2B lead generation companies in 2024.
Top Lead Generation Company
Clutch
Top Lead Generation Companies & Services
Read ArticleCallbox has been recognized as one of the best lead generation companies in the US in 2024.
Top Lead Generation Companies in the USA
Saleshandy
10 Best Lead Generation Companies in the USA For 2024
Read ArticleCallbox ranks 4th as the best United States Lead Generation Services Provider.
Top Lead Generation Service in the US
The Manifest
Top 100 Lead Generation Companies in the United States
Read ArticleCallbox ranks 1st as the best Los Angeles Lead Generation Services Provider.
Top Lead Generation Service in Los Angeles
The Manifest
Top 50 Lead Generation Companies in Los Angeles
Read ArticleCallbox has been recognized as one of the largest lead generation companies in the USA.
Top Largest Lead Generation Company in the US
FirstPageSage
The Top Lead Generation Companies in the US – 2024
Read ArticleCallbox has been recognized as one of the top manufacturing lead generation provider.
Top Manufacturing Lead Generation Service Provider
FirstPageSage
The Top B2B Lead Generation Companies in 2024
Read ArticleCallbox has been ranked 6th out of 80+ companies as the best lead generation agency in 2024.
The Top B2B Lead Generation Agency
FirstPageSage
The Top B2B Lead Generation Companies in 2024
Read ArticleCallbox has been recognized as the best company who offers the best overall value for companies looking for help to generate qualified leads.
Best Overall Company
Selling Signal
7 Best Lead Generation Companies in 2024
Read ArticleCallbox ranks 1st out of 427 companies in the best lead generation service provider category.
Best Lead Generation Services Provider 2023
G2
Best Lead Generation Services
Read ArticleCallbox ranks 7th out of 427 companies in the popular lead generation company category
Most Popular Lead Generation Company 2023
G2
Best Lead Generation Services
Read ArticleCallbox ranks 2nd out of 20 firms as one of the top lead generation companies in the US.
Top Lead Generation Company in the US 2023
Outsource Accelerator
Top 20 Lead Generation Companies in the US list
Read ArticleCallbox ranks 4th out of 427 companies in the customer satisfaction category
Customer Satisfactory Lead Generation Company 2023
G2
Best Lead Generation Services
Read ArticleCallbox ranks 1st out of 6 firms as the leading provider of the best B2B lead generation services.
Best Overall for a Mix of Core and Advanced Offerings 2023
Selling Signals
6 Best B2B Lead Generation Companies in 2023
Read ArticleCallbox ranks 4th out of 917 firms as the best lead generation company.
Most Recommended B2B Lead Generation Agency 2023
Clutch
Top Lead Generation Companies & Services
Read ArticleCallbox ranks 5th out of 13 firms as the best B2B lead generation companies.
Best B2B Lead Generation Companies 2023
UnboundB2B
13 Best B2B Lead Generation Companies To Look For In 2023
Read ArticleCallbox ranks 2nd out of 1594 companies as the best call center company for your business.
Best Call Center Company Around the World in 2023
CallHippo
Call Center Companies in 2023
Read ArticleCallbox ranks first out of 25 companies as the best call center company in America.
Best Call Center Company in America for 2023
CallHippo
25 Best Call Center in America
Read ArticleCallbox ranks 3rd out of 9 companies as one of the top lead generation companies you need to know.
Top Lead Generation Companies in 2023
Built In
30 Lead Generation Companies to Know
Read ArticleCallbox ranks 9th out of 11 firms as the best lead generation company.
Best Database Solutions and Virtual Event Marketing Provider 2023
Software Testing Help
Top 11 Best Lead Generation Companies In 2023
Read ArticleCallbox 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 2023
Quicksprout
The Best Lead Generation Companies and Services
Read ArticleCallbox ranks 4th out of 30 firms as one of the top B2B lead generation companies.
Best B2B Lead Generation Companies 2023
SuperbCompanies
Top 10 B2B Lead Generation Companies in 2023
Read ArticleCallbox ranks 2nd out of 10 companies as the top B2B lead generation companies in the United States.
Top B2B Lead Generation Companies in the United States
VSynergize
10 Best B2B Lead Generation Companies
Read ArticleCallbox ranks 10th out of 113 firms as the top lead generation service provider in California.
Top Lead Generation Services Provider in California
GoodFirm
Top Lead Generation Companies in California
Read ArticleCallbox ranks 2nd out of 22 companies as the best third-party verification service.
Best Third Party Verification Services 2023
DesignRush
Top Third Party Verification Companies
Read ArticleCallbox ranks 2nd out of 42 companies as the best B2B sales outsourcing service provider.
Best B2B Sales Outsourcing Services Provider 2023
DesignRush
Top B2B Sales Outsourcing Companies
Read ArticleCallbox ranks 6th out of 117 firms as the best telemarketing companies.
Best Telemarketing Firms 2023
DesignRush
Top Telemarketing Companies
Read ArticleGet Started