• Post a Project

Top B2B Lead Generation Experts Worldwide

Since 2004, Callbox has been the trusted leader and top lead generation company, driving growth for businesses worldwide. As the largest and most experienced player in the B2B lead generation field, we offer comprehensive solutions encompassing lead generation, appointment setting, and data-driven strategies designed to fuel your success. Our multi-touch, multi-channel approach sets us apart. We seamlessly integrate live conversations with email, social media, search, and direct marketing, ensuring engagement with key decision-makers at every stage of the conversion cycle. This holistic strategy maximizes your ROI and delivers qualified leads.

  • Min project size
    Undisclosed
  • Hourly rate
    Undisclosed
  • Employees
    1,000 - 9,999
  • Locations
    Los Angeles, CA
  • Year founded
    Founded 2004
  • Languages

6 Languages that we service

  • Mandarin
  • English
  • Spanish
  • Portuguese
  • Vietnamese
  • Cantonese

2 Locations

  • Los Angeles , CA
  • Singapore

No have been added yet...

    Pricing Snapshot

    Min. project size Undisclosed
    Avg. hourly rate Undisclosed
    Rating for cost 4.3 /5

    What Clients Have Said

    Callbox offers competitive pricing with a focus on value for cost, delivering high-quality leads and appointments. Clients note positive ROI and effective project management, often exceeding lead generation expectations. Their flexibility and responsiveness are highlighted, though some suggest improvements in regional market understanding and lead qualification.

    This summary is based on verified Clutch reviews.

    Most Common Project Size

    $10,000 - $49,999 based on 100 reviews
    < $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

    Select a service to see pricing information

    Callbox Review Insights

    Overall Review Rating

    4.6
    • Quality 4.5
    • Schedule 4.6
    • Cost 4.3
    • Willing to Refer 4.6

    Top Mentions

    Review Highlights

    • Strong Project Management and Communication

      Clients praise Callbox for their project management skills, noting their responsiveness, regular updates, and effective communication. Weekly meetings and detailed reports keep clients informed and engaged.

    • Professionalism and Customer Service

      Callbox’s professionalism and customer service are frequently highlighted. Clients note their courteous and proactive approach, ensuring a smooth and productive collaboration.

    • Competitive Pricing and Value

      Clients find Callbox’s pricing competitive and the services offered provide good value, especially in comparison to other vendors. This is a significant factor in selecting Callbox as a partner.

    • High Client Satisfaction and Long-Term Partnerships

      Many clients express satisfaction with Callbox’s services, leading to long-term partnerships. Clients appreciate their commitment to achieving business objectives and their willingness to adjust strategies to improve outcomes.

    • Challenges with Non-English Markets

      Some clients indicate that Callbox could improve their effectiveness in non-English speaking markets. Expanding language capabilities could enhance their reach and lead generation in diverse regions.

    • Flexibility in Campaign Adjustments

      Callbox is noted for their flexibility in adjusting campaigns based on client feedback and changing market conditions. This adaptability is crucial for optimizing lead generation efforts.

    Callbox Reviews

    Submit a Review
    All Filters

    0 selected

    Sort by
    Services
    Project cost

    Call Center Services for Software Development & Ads Agency

    • Call Center Services
    • $50,000 to $199,999
    • Dec. 2021 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "They’re everything I hoped for, and my team is happy to work with them."

    Mar 24, 2022
    Founder, ADMEN
    Cody Baird
    Verified
    • Other industries
    • Austin, Texas
    • 11-50 Employees
    • Phone Interview
    • Verified

    A software development and advertising agency hired Callbox to provide call center services. They get the client Google Meet appointments with potential customers to offer their services.

    Lead Generation for Web Conferencing SaaS

    • Business Consulting Call Center Services
    • $10,000 to $49,999
    • Aug. 2021 - Ongoing
    4.0
    Quality
    4.5
    Schedule
    5.0
    Cost
    4.0
    Willing to Refer
    4.0

    "They conduct themselves professionally, and the quality of their services is constant."

    Nov 18, 2021
    Enterprise Account Director, KUDO
    Aryeh Sternberg
    Verified
    • Other industries
    • Sydney, Australia
    • 51-200 Employees
    • Phone Interview
    • Verified

    Callbox is a web conferencing SaaS’ lead generation partner. They’ve built pre-lead profiles across multiple countries, and they conduct prospecting through phone calls, emails, and LinkedIn.

    Lead Generation Services for SaaS Company

    • $200,000 to $999,999
    • Apr. 2021 - Ongoing
    4.5
    Quality
    4.5
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "Their responsiveness and their ability to get things done are impressive."

    Sep 22, 2021
    Regional Sales Director, SaaS Company
    Anonymous
    Verified
    • Other industries
    • Singapore
    • 51-200 Employees
    • Online Review
    • Verified

    Callbox is providing lead generation services for a SaaS company. They are in charge of creating a target list of prospects, developing a lead management program, reaching out to prospects, and more.

    Lead Generation for Telecommunications Company

    • Digital Strategy Other Digital Marketing
    • Confidential
    • July 2021 - Jan. 2022
    4.0
    Quality
    4.0
    Schedule
    5.0
    Cost
    4.0
    Willing to Refer
    5.0

    "They've shown great passion to learn about our business, customers, and processes."

    Sep 15, 2021
    CMO, ViewQwest Pte Ltd
    Anonymous
    Verified
    • Telecommunications
    • Singapore
    • 201-500 Employees
    • Online Review
    • Verified

    Callbox is tasked with implementing account-based marketing (ABM) campaigns for a telecommunications company. The main objective is to acquire more sales leads.

    Call Center Services for Cloud Service Provider

    • Call Center Services
    • $10,000 to $49,999
    • June - Aug. 2021
    4.0
    Quality
    4.0
    Schedule
    4.0
    Cost
    2.5
    Willing to Refer
    4.0

    "We're satisfied with their workflow."

    Sep 10, 2021
    Sales Director, Cloud Service Provider
    Anonymous
    Verified
    • Other industries
    • Singapore
    • 1-10 Employees
    • Online Review
    • Verified

    Callbox's serves as an extended sales team of a cloud service provider. Their main goal is to bring the client's campaign to life, and they conduct calls following the company's script and strategy.

    Call Center Services for IT Services Company

    • Call Center Services
    • $10,000 to $49,999
    • July 2021 - Ongoing
    5.0
    Quality
    4.5
    Schedule
    5.0
    Cost
    4.5
    Willing to Refer
    5.0

    "They are quick to respond and delivers what we request."

    Aug 26, 2021
    Regional Marketing Manager, IT Services Company
    Elaine Tan
    Verified
    • Other industries
    • Singapore
    • 1,001-5,000 Employees
    • Online Review
    • Verified

    Callbox handles ongoing call center services for an IT company. The team performs account-based marketing (ABM) and outbound sales outreach efforts with the goal of generating more leads.

    Call Center Services for Marketing Tech Company

    • Call Center Services
    • $10,000 to $49,999
    • Mar. - May 2021
    3.5
    Quality
    3.5
    Schedule
    4.5
    Cost
    2.5
    Willing to Refer
    5.0

    "We were impressed by their responsiveness and ability to adapt to changes quickly."

    Aug 26, 2021
    Country Manager, Marketing Tech Company
    Winnie Ng
    Verified
    • Other industries
    • Hong Kong
    • 11-50 Employees
    • Online Review
    • Verified

    Callbox provided call center services for a marketing tech firm. The team conducted calls, scheduled meetings, and assisted in webinar registrations to help the client generate more leads.

    Lead Generation for Digital Solutions Provider

    • Other Digital Marketing
    • $10,000 to $49,999
    • Apr. 2021 - Ongoing
    4.0
    Quality
    4.0
    Schedule
    4.0
    Cost
    3.5
    Willing to Refer
    4.0

    "I am impressed with their campaign delivery and campaign management experience."

    Jul 20, 2021
    VP Marketing, PCCW Global
    Anonymous
    Verified
    • Telecommunications
    • Hong Kong
    • 501-1,000 Employees
    • Online Review
    • Verified

    Callbox was hired by a digital solutions provider to handle their lead generation efforts. The team is in charge of scheduling sales appointments with prospects.

    Call Center Services for IT Services Firm

    • Call Center Services
    • $10,000 to $49,999
    • Sep. 2020 - May 2021
    4.5
    Quality
    4.5
    Schedule
    5.0
    Cost
    4.5
    Willing to Refer
    4.0

    "They were very professional and friendly."

    Jul 20, 2021
    Sales Manager, AdvantageNZ
    Andrew Ramson
    Verified
    • Other industries
    • New Zealand
    • 11-50 Employees
    • Online Review
    • Verified

    An IT services company was looking to generate more leads for their sales team. They hired Callbox to handle calls and schedule appointments with prospective customers.

    Lead Gen for Workplace Safety & Health Organization

    • Other Digital Marketing
    • $10,000 to $49,999
    • Feb. 2021 - Ongoing
    4.5
    Quality
    5.0
    Schedule
    5.0
    Cost
    4.0
    Willing to Refer
    4.5

    "Callbox has a clear idea of the process and has guided us well."

    Jul 7, 2021
    Marketing Manager, WSH Council
    Chia Yi Lun
    Verified
    • Government
    • Singapore
    • 201-500 Employees
    • Online Review
    • Verified

    As part of their efforts to promote their mission, a Workplace Safety and Health (WSH) organization has hired Callbox to gather an audience for one of their programs. The vendor focuses on gathering leads.

    Clutch verification provides an additional layer of data to help you make the right purchasing decision of business services.

    Learn More
    Verified Client Reviews
    112
    Overall Review Rating
    4.6
    Source
    Clutch
    Last Updated
    May 8, 2025

    Business Entity

    Business Entity Name Callbox, Inc.
    Source Delaware Secretary of State
    Jurisdiction of Formation Delaware
    Date of Formation January 13, 2012
    Status Active
    Last Updated November 16, 2020
    ID 5095306

    Credit Report Results

    International Credit Risk Assessment Low Risk
    Source Creditsafe
    Last Updated February 2, 2021
    Learn More About The Clutch Verification Process

    Locations (2)

    4924 Balboa Blvd # 353 Los AngelesCA, United States 91316

    2 - 5

    Contact Callbox

    If you’re not seeing exactly what you need here, send this company a custom message. You can talk about your project needs, price, and timeline to get started on your project.

    Connect with Callbox on Social

    Get connected to see updates from Callbox like new case studies, latest reviews, their latest masterpieces in their portfolio, delivered straight to you.

    Additional Connections

    (2)