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.
Our multi-touch, multi-channel approach is built for the 2026 landscape. We seamlessly integrate intent-based conversations with email, LinkedIn, social media, search, and account-based marketing (ABM). This holistic strategy ensures engagement with key decision-makers at every stage of the conversion cycle, maximizing your ROI and delivering sales-qualified leads (SQLs).
Headquartered in Encino, CA, with a global footprint, we have successfully completed over 20,000 campaigns across diverse B2B verticals and global markets. This extensive track record makes us a top outsourced lead generation partner you can rely on.
Our Edge as a Top Lead Generation Company:
Proprietary Data Stack: Access to a vast, verified in-house B2B database with real-time intent signals.
Personalized Lead Nurturing: Automated, yet human-led programs to turn cold leads into warm prospects.
Precision ABM: Advanced Account-Based Marketing for hyper-targeted outreach to high-value accounts.
Full-Funnel Engagement: Content syndication, lead re-activation, and retargeting to maximize touchpoint density.
What’s New at Callbox
Co-managed Sales Development Staff Augmentation Integrate dedicated SDRs directly into your internal workflow. This model combines the control of an in-house team with Callbox’s premium data, AI-powered tech stack, and recruitment infrastructure to scale your pipeline with lower overhead.
Ready to Scale? Whether you are looking to penetrate new markets, increase conversion rates, or hit aggressive revenue targets, Callbox provides the data-driven lead generation and sales expertise to deliver measurable results. Partner with the industry leader today.
Sales OutsourcingCall Center ServicesB2B Lead GenerationB2B 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, typically charging between $12,000 and $80,000 annually. Clients report high value for cost, with successful appointment setting and lead conversion, indicating strong ROI and effective project management.
Some clients noted that Callbox's services are less effective in non-English speaking regions due to language barriers. Expanding multilingual capabilities could enhance their service offerings.
Impressive Ability to Understand Client Needs
Clients appreciate Callbox's dedication to understanding their business model and industry-specific needs, which enables them to tailor their services and deliver effective results.
Flexibility and Customization
Callbox is recognized for their flexibility in adapting to client needs and customizing their approach. They are open to adjusting strategies based on client feedback to optimize results.
Positive Impact on Brand Awareness
Clients report that Callbox's efforts have positively impacted their brand awareness, helping them reach new markets and establish a stronger presence.
Effective Data Management and Lead Qualification
Callbox's data management and lead qualification processes are effective, ensuring that clients receive accurate and relevant information to support their sales efforts.
Effective Lead Generation Services
Callbox consistently delivers qualified leads, with clients reporting increased lead flow and successful conversion rates. Their multi-channel approach, including telemarketing, email, and social media, is praised for efficiently reaching target audiences.
"Their attentiveness and responsiveness have been great."
May 3, 2022
Marketing Manager, IT Services Company
Anonymous
Verified
Other industries
Milwaukee, Wisconsin
11-50 Employees
Online Review
Verified
Callbox is an IT services company’s lead generation partner.
Callbox’s work has been praised by the client. They are attentive and responsive, resulting in a positive partnership. Their commitment to the client’s needs is impressive.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
I'm the marketing manager for a managed secure private cloud service that partners with Software companies to deliver a SaaS version of their product for their customers.
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Callbox?
We have been engaging with Callbox as we evaluate their Lead Generation Services.
SOLUTION
How did you select this vendor?
We found quite a few companies online and read past reviews then scheduled a call for more information.
Describe the scope of their work in detail.
They have provided a couple custom quotes built around lead generation for our company.
What was the team composition?
I have worked closely with an account rep to review the quotes and familiarize ourselves with their product.
RESULTS & FEEDBACK
Can you share any outcomes from the project that demonstrate progress or success?
We have yet to commit to a formal engagement with the Callbox team.
How effective was the workflow between your team and theirs?
Their attentiveness and responsiveness have been great and not overbearing.
What did you find most impressive about this company?
The ability to quickly turnaround a quote on our behalf.
Is there any area for improvement or anything that could have been done differently?
Not at this time.
RATINGS
3.5
Quality
4.0
Service & Deliverables
Schedule
4.5
On time / deadlines
Cost
3.0
Value / within estimates
Willing to Refer
3.0
NPS
Lead Generation for Payroll Service Bureau
AdvertisingBusiness Consulting
Less than $10,000
May 2022 - May 2023
5.0
Quality
5.0
Schedule
5.0
Cost
3.0
Willing to Refer
5.0
"Callbox is potentially a great fit for our future growth aspirations."
May 2, 2022
Founder, NU Energy Payroll HR
Anonymous
Verified
Business services
Houston, Texas
1-10 Employees
Online Review
Verified
Callbox provides lead generation services to help a payroll service bureau grow and scale their business.
The knowledgeable team at Callbox has provided the client with an excellent overall description of their proposal. Both teams have a great workflow, allowing them to work seamlessly together.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
I am Founder of my payroll service bureau. We provide payroll, HR, tax, and benefits to small and mid-id-sized organizations
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Callbox?
Our company is wanting to grow and scale our business. We are outsourcers and therefore Callbox is potentially a great fit for our future growth aspirations.
SOLUTION
How did you select this firm and what were the deciding factors?
We currently subscribe to a lead generation service however the yield is less than desirable
Describe the project in detail and walk through their service package.
Lead generation
How many resources from the vendor's team worked with you, and what were their positions?
1
RESULTS & FEEDBACK
Can you share any outcomes from the engagement that demonstrate progress or success?
overall description of the proposal is excellent
How effective was the workflow between your team and theirs?
great
What did you find most impressive or unique about this company?
knowledge
Are there any areas for improvement or something they could have done differently?
no
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
3.0
Value / within estimates
Willing to Refer
5.0
NPS
Call Center Services for International Logistics Firm
AdvertisingCall Center Services
$10,000 to $49,999
Apr. 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0
"Their communication has been seamless, and they always deliver on time."
Apr 19, 2022
Director of Business Dev, International Logistics Firm
Kreg Anderson
Verified
Other industries
Detroit, Michigan
11-50 Employees
Online Review
Verified
Callbox provides ongoing call center services for an international logistics company. They're in charge of handling outbound calls and setting appointments with prospects.
The client has been pleased with Callbox's services — in fact, they commend them for consistently reaching the right customers. The team creates a smooth workflow through their top-notch communication skills and punctuality. Overall, customers can expect a reliable partner.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
I am the Business Development manager for an International Logistics company providing all of your logistics needs from point of origin to the final mile.
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Callbox?
We were looking for a way to increase warm leads and appointments for our inside sales team,
SOLUTION
How did you select this vendor?
Callbox offered a turn key solution to providing just that, putting sales executives in front of decision makers.
Describe the scope of their work in detail.
They call on target customers and establish need. They then provide the sales rep. with the prospects contact information or the appointment details.
What was the team composition?
I worked with their business development manager to establish and create a customized outbound call solution.
RESULTS & FEEDBACK
Can you share any outcomes from the project that demonstrate progress or success?
I was extremely impressed by their ability to reach the right customers and the right people in the respective organization.
How effective was the workflow between your team and theirs?
Their communication has been seamless, and they always deliver on time.
What did you find most impressive about this company?
They were very effective in communicating what they were going to deliver and kept every promise they made.
Is there any area for improvement or anything that could have been done differently?
Everything was exactly as I hoped and then some.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
4.0
Value / within estimates
Willing to Refer
5.0
NPS
Lead Generation for Software Company
Call Center Services
$10,000 to $49,999
Apr. - May 2022
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"Their commitment to learning our business process and needs was impressive."
Apr 18, 2022
Regional Sales Manager, Virtual Mgr
Brian J. Damico
Verified
Other industries
Pittsburgh, Pennsylvania
11-50 Employees
Online Review
Verified
Callbox provided lead generation services for a software company. Their main responsibility was to handle outbound calls. The goal was to acquire more leads for the client's sales pipeline.
Through Callbox's lead generation efforts, the client increased their sales leads by 50%. Both sides worked closely together, touching base consistently throughout the project. The team impressed with their dedication to understanding the client's business process and requirements.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
I'm the Regional Sales Manager with Virtual mgr.
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Callbox?
We were looking to build leads into the sales pipeline in EVS.
SOLUTION
How did you select this vendor?
We found Callbox online and researched them.
Describe the scope of their work in detail.
They helped us with lead generation with outbound calls.
What was the team composition?
We worked closely with the sales associates.
RESULTS & FEEDBACK
Can you share any outcomes from the project that demonstrate progress or success?
We've increased the sales pipeline by 50%.
How effective was the workflow between your team and theirs?
We have weekly meetings with the project managers.
What did you find most impressive about this company?
Their commitment to learning our business process and needs was impressive.
Is there any area for improvement or anything that could have been done differently?
I would like to use Slack to communicate more with them.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Digital Marketing for Travel Agency
Digital StrategyOther Digital MarketingUX/UI Design
$200,000 to $999,999
Jan. 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0
"They have a very sophisticated and integrated approach to digital marketing and business development."
Apr 15, 2022
President & Founder, Ascent Performance Group
Scott Andrews
Verified
Other industries
Houston, Texas
1-10 Employees
Online Review
Verified
Callbox is expected to help a travel agency with their digital marketing campaign. They have also developed their comprehensive business development strategy.
The client hasn't engaged the provider on a project yet, but they're happy with Callbox's professionalism and sophisticated approach to digital marketing so far.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
I am the president and founder of an meeting and event planning company that specialized in group incentive travel.
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Callbox, and what were your goals?
We are not currently engaged with Callbox, however we have extensively evaluated their services and hope to engage them in the future to help us with our digital marketing and new business development.
SOLUTION
How did you select this vendor and what were the deciding factors?
We have not selected Callbox, but if we do the the deciding factors are their professionalism and comprehensive and integrated flat-form for their services.
Describe the scope of work in detail, including the project steps, key deliverables, and marking tools used.
We are not currently working with Callbox, however, our account manager Katrina, has done an excellent job of assessing our current digital marketing approach and of developing a comprehensive business development strategy.
How many resources from the vendor's team worked with you, and what were their positions?
We are not currently working with Callbox.
RESULTS & FEEDBACK
Can you share any measurable outcomes of the project or general feedback about the deliverables?
We have not engage Callbox on a project to date.
How effective was the workflow between your team and theirs?
We have not engage Callbox on a project to date.
What did you find most impressive or unique about this company?
Callbox is very professional. They have a very sophisticated and integrated approach to digital marketing and business development.
Are there any areas for improvement or something they could have done differently?
None come to mind.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
4.0
Value / within estimates
Willing to Refer
5.0
NPS
Lead Generation for Software Company
AdvertisingBusiness ConsultingCall Center Services
$10,000 to $49,999
Mar. - June 2022
5.0
Quality
4.0
Schedule
3.5
Cost
5.0
Willing to Refer
4.0
"They had a very clear and structured process."
Apr 14, 2022
VP of Business Development, Software Company
Anonymous
Verified
Other industries
Belgium
11-50 Employees
Online Review
Verified
Callbox is in charge of developing a software company's digital presence in the Asia-Pacific region. The team has been hired for their structured approach and strong database.
Callbox brought a number of good opportunities for the client. They have a structured and clear workflow that has done the job satisfyingly.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
in charge of international development
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Callbox, and what were your goals??
develop our presence in apac
SOLUTION
How did you select this vendor and what were the deciding factors?
they have structured approach and strong database
Describe the project in detail and walk through their service package, including any calling tools used.
they provide appointment services
Who did you work with and what was the feedback process like?
Roma was our CSM, the collaboration process went very well and communication was always clear
RESULTS & FEEDBACK
Can you share any measurable outcomes of the project or general feedback about the service?
they brought us a number of good opportunities
Describe their project management style, including communication tools and timeliness.
very structured and clear
What did you find most impressive or unique about this company?
They had a very clear and structured process.
Are there any areas for improvement or something they could have done differently?
everything is good, they are doing the job !
RATINGS
5.0
"good partner"
Quality
4.0
Service & Deliverables
"thanks"
Schedule
3.5
On time / deadlines
"good"
Cost
5.0
Value / within estimates
"nice"
Willing to Refer
4.0
NPS
"good partner
Lead Generation for Logistics Startup
Business ConsultingCall Center ServicesHR Consulting
$10,000 to $49,999
January 2021
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They have a complete team to cover all bases from initial set up through the ongoing process of being a customer."
Apr 14, 2022
National Sales Manager, International Logistics Solutions
Jeffrey Reinhart
Verified
Other industries
Miami, Florida
11-50 Employees
Online Review
Verified
Callbox augmented a lead generation manager for a logistics startup. They provided a presentation that would help the company grow.
Callbox was very knowledgeable. They answered questions promptly and concisely that showed a complete team that could cover all bases. Although the client couldn't fully commit due to the size of their company at the time, they were happy with the value the external team had brought to the table.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
I am the Director of Enterprise Sales for an eCommerce logistics company.
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Callbox, and what were your goals??
We were looking into CallBox as a lead generator/appointment setter for our sales team
SOLUTION
How did you select this vendor and what were the deciding factors?
Although we did not move forward with CallBox, Grace's presentation and follow up exceeded my expectations.
Describe the project in detail and walk through their service package, including any calling tools used.
We did not move forward with the project. We are a young company and not ready to get involved with CallBox at the time.
Who did you work with and what was the feedback process like?
I worked with Grace. She was extremely knowledgeable, answered all of my questions and presented in a way that I felt she understood her company and the value they bring to the table.
RESULTS & FEEDBACK
Describe their project management style, including communication tools and timeliness.
Grace has personalized, planned out follow up and communication and has been consistent through the past 15 months.
What did you find most impressive or unique about this company?
They have a complete team to cover all bases from initial set up through the ongoing process of being a customer.
Are there any areas for improvement or something they could have done differently?
It just wasn't a good fit for us at the time.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Lead Generation for Bilingual Education Platform
Other Digital Marketing
$10,000 to $49,999
Apr. 2022 - Ongoing
4.5
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0
"They are very focused on delivering what they commit to."
Apr 13, 2022
Commercial Consultant, Maple Bear Global Schools
José Mafra
Education
Toronto, Ontario
51-200 Employees
Online Review
Callbox provides lead generation services for a bilingual education platform. The team handles the client's social media channels, SMS, calls, webinars, and more.
Callbox performance has been incredible. They are well-organized and focused on the project goals. Overall, the team has a transparent process and unique services.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
I’m a commercial consultant for Maple Bear Global Schools.
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Callbox, and what were your goals?
We’ve partnered with Callbox to help us identify and generate new Leads for our USA Market.
SOLUTION
How did you select this vendor and what were the deciding factors?
The service was unbeatable. Attention to detail.
Describe the scope of work in detail, including the project steps, key deliverables, and technologies used.
The main goal was to identify new Leads to help fuel our expansion goals in the USA. The approach used was the full package call box offers: Social Media, SMS, Calls, Webinars etc
How many people from the vendor's team worked with you, and what were their positions?
I worked mainly with one Customer Relationship Agent.
RESULTS & FEEDBACK
Can you share any measurable outcomes of the project or general feedback about the deliverables?
The project has just begun and the results aren’t available yet.
Describe their project management style, including communication tools and timeliness.
They have what it takes to get things going. Their process is clear and they are very focused on delivering what they commit to.
What did you find most impressive or unique about this company?
For a tech company, the service. There is a lot of players out there…callbox service stands out!
Are there any areas for improvement or something they could have done differently?
They did improve it right way…on our first call my contact did not have his camera on…after all the calls are with video which makes our interaction more personal.
RATINGS
4.5
Quality
5.0
Service & Deliverables
"Service and Value proposition are aligned!"
Schedule
5.0
On time / deadlines
"Very smooth"
Cost
4.0
Value / within estimates
"Price is high. But seems to be fair."
Willing to Refer
5.0
NPS
"Great service
Lead Generation for Supply Chain Software Firm
Content Marketing
$10,000 to $49,999
Apr. 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"Their workflow has been excellent."
Apr 12, 2022
CEO, b2wise
Steve Christensen
Verified
Other industries
Verona, New Jersey
11-50 Employees
Online Review
Verified
Callbox is helping a supply chain software company generate leads from targeted accounts and contacts for their sales pipeline.
Callbox's efforts have had a positive impact on the business. They lead an effective workflow, communicate consistently, and document progress. Overall, the client had nothing but good feedback regarding the team's performance.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
Supply Chain Software company that I manage the United States market.
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Callbox?
Lead Generation
SOLUTION
How did you select this vendor and what were the deciding factors?
Their solution offering was more complete than any alternative I'd been able to find after hours of searching.
Describe the project in detail and walk through the stages of the project.
Callbox will help us generate leads from targeted accounts and contacts to create a sales pipeline and customers.
How many resources from the vendor's team worked with you, and what were their positions?
1 - Sales
RESULTS & FEEDBACK
Can you share any outcomes from the project that demonstrate progress or success?
Success to date is limited to the selection of Callbox as my strategic vendor.
How effective was the workflow between your team and theirs?
Their workflow has been excellent.
What did you find most impressive or unique about this company?
Communication, documentation and solution offering.
Are there any areas for improvement or something they could have done differently?
Not that I'm aware of
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Call Center Services for Recruitment Firm
Call Center Services
Less than $10,000
Jan. 2017 - Feb. 2022
5.0
Quality
4.5
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"We were impressed with the effort they put in."
Apr 7, 2022
President, Nearterm
Jim Higgins
Verified
Business services
Houston, Texas
11-50 Employees
Online Review
Verified
Looking to attain more leads, a recruitment firm hired Callbox for their call center services. The team was in charge of setting appointments.
Thanks to Callbox's services, the client managed to secure a number of business partnerships. By putting in the extra effort to accomplish each task, the team helped the client achieve their goals. Overall, the entire process was seamless.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
Recruiting and Staffing president
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Callbox?
Appointment setting
SOLUTION
How did you select this agency and what were the deciding factors?
The services they offered
Describe the project in detail and walk through the stages of the project.
They provide two top quilty callers. set two appointment a week
Describe the recruitment process in detail.
They call call a list of hospitals
RESULTS & FEEDBACK
Can you share any outcomes from the engagement that demonstrate progress or success?
we made a lot of deals because of there service
How effective was the workflow between your team and theirs?
We were impressed with the effort they put in.
What did you find most impressive or unique about this company?
The effort they put in.
Are there any areas for improvement or something they could have done differently?
None
RATINGS
5.0
Quality
4.5
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Showing 91-100 of
121 Reviews
Verified means Clutch independently confirmed Callbox is a legally registered business, financially sound (Creditsafe: Low Risk), and backed by 114 verified client reviews averaging 4.6 stars.
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