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, often highlighted for delivering high-quality leads and appointments. Clients report satisfaction with value for cost, with investments ranging from $12,000 to over $80,000 annually, depending on service scope and engagement length.
Callbox is praised for their excellent customer service, with teams being responsive, courteous, and committed to client success. Their ability to maintain open lines of communication and address issues promptly is a notable strength.
Strong Project Management and Communication
Clients commend Callbox for their structured project management and clear communication. Regular updates, responsiveness, and a collaborative approach ensure that projects run smoothly, meeting client expectations and deadlines.
Customization and Flexibility
Clients appreciate Callbox's willingness to adapt to specific business needs and provide tailored solutions. Their flexibility in adjusting strategies and processes to align with client goals is a significant advantage.
Proficiency in Multi-Channel Marketing
Callbox utilizes a mix of outbound calling, email, social media, and digital marketing to reach target audiences. This multi-channel approach helps clients increase brand awareness and engage with a broader audience effectively.
Challenges with Non-English Markets
Some clients note that Callbox could improve their services by offering support in languages other than English, as this would enhance their effectiveness in non-English speaking regions like Vietnam and China.
High Client Satisfaction and Long-Term Relationships
Many clients express satisfaction with Callbox's services, leading to long-term partnerships and repeated engagements. The company's dedication and results-driven approach foster strong client relationships.
Digital StrategyOther Digital MarketingSocial Media Marketing
Less than $10,000
Jan. 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
4.5
Willing to Refer
5.0
"CallBox is experienced and knowledgeable in the IT service management industry."
May 20, 2022
Sales & Marketing VP, Software Development Company
Anonymous
Verified
Other industries
Sunnyvale, California
51-200 Employees
Online Review
Verified
Callbox has created and implemented a digital marketing campaign — including email and social media marketing — to promote their new product, achieve better results, and save costs.
Callbox's team is experienced in IT service management and software development, allowing them to create an effective digital marketing campaign. Moreover, their team facilitates a smooth workflow between both parties.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
Marketing sourcing needs
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Callbox, and what were your goals?
We are launching a new product and need to outsourcing our marketing champing to 3rd party in delivering a better result with cost saving.
SOLUTION
How did you select this vendor and what were the deciding factors?
CallBox is experienced and knowledgeable in the IT service management industry.
Describe the scope of work in detail, including the project steps, key deliverables, and marking tools used.
email marketing, social media marketing, sales appointment booking, & etc.
How many resources from the vendor's team worked with you, and what were their positions?
a team of five, includes customer succeed manager, operation manager, plaint manager, so on and so forth
RESULTS & FEEDBACK
Can you share any measurable outcomes of the project or general feedback about the deliverables?
N/A
How effective was the workflow between your team and theirs?
very effective
What did you find most impressive or unique about this company?
they are experienced and knowledgeable in ITSM as well as Software development
Are there any areas for improvement or something they could have done differently?
N/A
RATINGS
5.0
Quality
5.0
Service & Deliverables
"they are GOOD!!!"
Schedule
5.0
On time / deadlines
Cost
4.5
Value / within estimates
Willing to Refer
5.0
NPS
Lead Generation for Financial Service Company
Content MarketingOther Digital MarketingPay Per ClickSearch Engine Optimization
$10,000 to $49,999
Apr. 2022 - Ongoing
4.5
Quality
4.5
Schedule
5.0
Cost
4.5
Willing to Refer
4.5
"They have a very effective, structured, and efficient process."
May 11, 2022
CEO, QualiFi
Edward DeAngelis
Verified
Financial services
Broomall, Pennsylvania
11-50 Employees
Online Review
Verified
Callbox was hired to provide lead generation services for a financial service company on phone, & social media, and email marketing. The partners are currently on a 6-month engagement.
The Digital Panda’s team is highly adaptable and invested in a long-term, ongoing relationship. They are able to easily adapt to the chosen team and industry lingo quickly. The client is most impressed by their multi-channel approach, which added strong value into the client's business.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
Finance brokerage & CEO
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Callbox?
Lead generation services
SOLUTION
How did you select this vendor and what were the deciding factors?
From a partner friend of mine (Lender)
Describe the project in detail and walk through the stages of the project.
Callbox is providing lead generation services for us using phone, & social media and emailing (multi channel approach) We engaged them over a 6 month term. They re very professional, organized and working very hard to make this campaign a success
How many resources from the vendor's team worked with you, and what were their positions?
3 on the team, one manager and 2 team members
RESULTS & FEEDBACK
Can you share any outcomes from the project that demonstrate progress or success?
We have recently started to receive good lead flow. Its early on so far but we expect this campaign to do we well for us
How effective was the workflow between your team and theirs?
They have a very effective, structured, and efficient process.
What did you find most impressive or unique about this company?
The multi channel approach of email, calling and social media is a strong value add.
Are there any areas for improvement or something they could have done differently?
They are adjusting to learning our preferred clients ands industry lingo well and adapting quickly
RATINGS
4.5
"good comapny, committed to our campaigns success"
Quality
4.5
Service & Deliverables
"very detailed and organize"
Schedule
5.0
On time / deadlines
"spot on and structured"
Cost
4.5
Value / within estimates
"Cost is reasonable to $5,000"
Willing to Refer
4.5
NPS
"likely
Appointment Scheduling Services for Advertising Agency
Advertising
$10,000 to $49,999
Jan. 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"We have meetings as needed and all follow up via email is terrific."
May 9, 2022
CEO, Madison Media Works
Sean Driscoll
Verified
Advertising & marketing
Knoxville, Tennessee
11-50 Employees
Online Review
Verified
Callbox sets up appointments between an advertising agency's staff and potential customers. They've followed up a series of training meetings with customer outreach via social media, email, and phone calls.
The partnership's results are propriety knowledge, but the client has renewed their contract twice with Callbox, which speaks to the positive results of the engagement. The partners have meetings as needed, and Callbox responds quickly via email. Callbox truly cares about the client's business.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
I an the CEO of an advertising agency. We work with CallBox on appointment setting for our client
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Callbox?
We need to reach out to hard to contact potential clients (lawyers) and set appointments for our professional staff
SOLUTION
How did you select this vendor?
We looked at alternatives. They were the best
Describe the scope of their work in detail.
After a series of training meetings, they follow up with calling./emailing./reaching via social with attorneys
What was the team composition?
We work directly with a senior manager, and a project director
RESULTS & FEEDBACK
Can you share any outcomes from the project that demonstrate progress or success?
Results are proprietary but will say we have renewed the contact twice/
How effective was the workflow between your team and theirs?
We have meetings as needed and all follow up via email is terrific.
What did you find most impressive about this company?
Their caring attitude about our Busienss.
Is there any area for improvement or anything that could have been done differently?
None that jumps to mind.
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 IT Services Company
AdvertisingBusiness Consulting
Less than $10,000
Apr. 2022 - Ongoing
3.5
Quality
4.0
Schedule
4.5
Cost
3.0
Willing to Refer
3.0
"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
Showing 91-100 of
124 Reviews
Premier Verified means Clutch independently confirmed Callbox is a legally registered business, financially sound (Creditsafe: Low Risk), and backed by 117 verified client reviews averaging 4.6 stars.
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