• Post a Project

Top B2B Lead Generation Experts Worldwide

Since 2004, Callbox has been the trusted leader and top lead generation company, driving high-velocity growth for businesses worldwide. As the largest and most experienced player in B2B sales development, we offer comprehensive solutions from AI-powered prospecting to appointment setting designed to fuel your revenue pipeline.

  • 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 , Singapore

Select Focus Area
Back Office Outsourcing
Customer Service Outsourcing
Outbound Services
Industries
Information technology
20%
Telecommunications
15%
Advertising & marketing
10%
Business services
10%
Financial services
10%
Medical
10%
Education
5%
Hospitality & leisure
5%
Manufacturing
5%
Other industries
5%
Retail
5%
Clients
Enterprise (>$1B)
45%
Midmarket ($10M - $1B)
40%
Small Business (<$10M)
15%
Certified in:
Sales Outsourcing Call Center Services B2B Lead Generation B2B Appointment Setting

Pricing Snapshot

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

What Clients Have Said

Callbox offers competitive pricing for lead generation services, with clients noting good value for cost. Engagements range from $12,000 to $80,000 annually, with flexible payment options. Clients appreciate the quality of leads generated and the effective communication throughout projects.

This summary is based on verified Clutch reviews.

Most Common Project Size

$10,000 - $49,999 based on 101 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 4.7
  • Cost 4.3
  • Willing to Refer 4.6

Top Mentions

Review Highlights

  • Need for Improved Reporting

    Some clients have noted that Callbox could enhance their reporting capabilities by providing more detailed insights and analysis. This would help clients better understand campaign performance and make informed decisions.

  • Proficiency in Lead Generation

    Callbox's lead generation services have consistently enabled clients to increase their sales pipeline, generate qualified leads, and set appointments. Clients across various industries have benefited from their ability to connect with decision-makers and convert leads into opportunities.

  • Commitment to Client Success

    Clients appreciate Callbox's dedication to achieving business objectives and their proactive approach to overcoming challenges. Their commitment to client success is evident in their willingness to go above and beyond.

  • Effective Multichannel Marketing

    Callbox employs a comprehensive multichannel marketing strategy, including email, social media, and telemarketing. This approach has been effective in generating awareness, engaging prospects, and driving conversions.

  • Positive Client Relationships

    Callbox fosters strong client relationships through effective communication, understanding client needs, and delivering personalized services. Their professional and courteous demeanor is consistently highlighted by clients.

  • Adaptability and Flexibility

    Callbox is noted for their flexibility in adapting to client needs and processes. They are open to feedback and willing to make adjustments to improve campaign performance, ensuring a tailored approach for each client.

Callbox Reviews

Submit a Review
All Filters

0 selected

Sort by
Services
Project Cost
Industry
Location

Outbound Marketing for Material Handling Company

  • Advertising
  • $10,000 to $49,999
  • Oct. 2020 - Jan. 2021
4.5
Quality
4.0
Schedule
4.5
Cost
4.0
Willing to Refer
4.5

"We were very pleased with the vast improvements in metrics."

Mar 29, 2021
Marketing Analyst for SEA Region, Equipment Company
Jacqueline Tan
Verified
  • Manufacturing
  • Singapore
  • 51-200 Employees
  • Online Review
  • Verified

Callbox was hired to create outbound marketing campaigns for an equipment company. The team was in charge of growing the client's database by acquiring new contacts and generating more leads from those.

Demand Generation Services for Consulting Company

  • Other IT Consulting and SI
  • $10,000 to $49,999
  • Jan. 2021 - Ongoing
4.5
Quality
4.5
Schedule
4.5
Cost
4.0
Willing to Refer
4.5

"They always take feedback positively and are remarkable at following up."

Mar 18, 2021
Head of Sales & Marketing, Simplify Consulting Sdn. Bhd.
Kesava Voodi
Verified
  • Other industries
  • Kuala Lumpur, Malaysia
  • 11-50 Employees
  • Online Review
  • Verified

Callbox provides ongoing demand generation services for a consulting company. The team creates a list of targeted prospects which helps the client with content development for their lead generation initiatives.

Sales Consulting for IT Services Company

  • Advertising
  • $10,000 to $49,999
  • Jan. - Apr. 2021
4.5
Quality
4.0
Schedule
5.0
Cost
4.0
Willing to Refer
4.5

"They have always taken feedback positively and are remarkable at following up."

Mar 17, 2021
Head of Sales & Marketing, IT Services Company
Anonymous
  • Other industries
  • Kuala Lumpur, Malaysia
  • 11-50 Employees
  • Online Review

Callbox provides consultation for an IT services company to help with their demand generation initiatives such as event management, inside sales, and digital marketing.

Lead Generation for Economic Development Marketing Agency

  • Call Center Services
  • B2C Telemarketing & telesales Inbound appointment scheduling
  • $10,000 to $49,999
  • Aug. 2020 - Ongoing
5.0
Quality
4.5
Schedule
4.5
Cost
4.0
Willing to Refer
4.5

“Whenever we ask for something, they take care of it right away.”

Mar 4, 2021
Partner, CQNS
Chris Hokansson
Verified
  • Advertising & marketing
  • Oakville, Ontario
  • 1-10 Employees
  • Phone Interview
  • Verified

Callbox provides voice services for a marketing agency. They handle appointment setting and lead generation efforts in efforts to reach qualified candidates and qualify them for sales and appointments.

Outbound Sales & Marketing Calls for IT Services Provider

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

"They are extremely organized and methodical."

 
Feb 25, 2021
Vice President, IT-Henhouse
Ann Fields
Verified
  • Other industries
  • Charlotte, North Carolina
  • 1-10 Employees
  • Online Review
  • Verified

Callbox was engaged by a business IT services provider for outbound sales and marketing solutions. The team's main task is to qualified leads and schedule appointments to increase the client's revenue.

B2B Lead Generation & Sales for IT Services Company

  • Advertising
  • $50,000 to $199,999
  • Aug. 2020 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"I found their level of professionalism and dedication to our efforts the most impressive."

Feb 24, 2021
CTO, DV8 Infosystems, Inc
Bill Faruki
Verified
  • Other industries
  • Irvine, California
  • 11-50 Employees
  • Online Review
  • Verified

An IT services company partnered with Callbox to take charge of their B2B lead generation, appointment setting, and initial contact with new prospects.

Call Marketing Services for Industrial Information Provider

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

"I was (and still am) very impressed with the ability of the Callbox team to adapt to the needs of clients."

Feb 23, 2021
Managing Director, Industrial Info Resources
Gordon Murray
Verified
  • Business services
  • Japan
  • 501-1,000 Employees
  • Online Review
  • Verified

Callbox was contracted by an industrial information provider for extended marketing support through call center services. The main objective was to boost awareness of the company's services amid the pandemic.

Marketing & Digital Strategy for Economic Dev Marketing Co

  • Advertising Other Digital Marketing
  • $50,000 to $199,999
  • June 2020 - Ongoing
5.0
Quality
4.5
Schedule
5.0
Cost
4.5
Willing to Refer
5.0

“They spent time working with us to build a relationship and understand our business.”

Feb 23, 2021
Partner, CQNS
Bill Elliot
Verified
  • Advertising & marketing
  • Canada
  • 11-50 Employees
  • Phone Interview
  • Verified

Callbox serves as the digital marketing partner to a consultancy firm. They are working on a proactive marketing campaign, identifying target markets and developing content.

Lead Generation Campaign for Video Marketing Company

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

"They always provide comprehensive and accurate information on leads, which is all that we really want."

Feb 18, 2021
Director, KOR Creative
Steve Wallace
Verified
  • Media
  • Auckland, New Zealand
  • 1-10 Employees
  • Online Review
  • Verified

Callbox provided outbound lead generation services for a video marketing company, helping them reach out to potential clients. The goal was to improve the firm's ROI and develop relationships with clients.

Appointment & Lead Gen for Cloud-based Solutions Provider

  • Call Center Services
  • B2C Telemarketing & telesales Inbound appointment scheduling
  • $50,000 to $199,999
  • Jan. 2020 - Ongoing
5.0
Quality
3.5
Schedule
5.0
Cost
1.0
Willing to Refer
4.0

"Callbox has an understanding of what we do, and they’re able to articulate that accurately to our audience."

Feb 17, 2021
Marketing Consulting Head, Instant InfoSystems
Anonymous
Verified
  • Other industries
  • Torrance, California
  • 11-50 Employees
  • Phone Interview
  • Verified

Callbox was hired by a cloud-based solutions provider to generate leads and appointments. Their marketing services include online banner and display ads as well as Google Ads campaigns.

Premier Verified means Clutch independently confirmed Callbox is a legally registered business,
financially sound (Creditsafe: Low Risk), and backed by 121 verified client reviews averaging 4.6 stars.

Learn More
Verified Client Reviews
121
Overall Review Rating
4.6
Source
Clutch
Last Updated
August 29, 2026

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.

Alliance Mechanical Services, LLC

(1)
Alliance Mechanical Services, LLC Logotype

Cody Edge

DataHub Innovations

(1)
DataHub Innovations Logotype

Mit Patel

Maus Software

(1)
Maus Software Logotype

Aaron Stine

The Maynard Group

(1)
The Maynard Group Logotype

David Atkinson-Smith

Additional Connections

(2)