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Callbox Reviews

#1 Lead Gen Company, According to our Clients

We’re not just saying our lead generation services are great; our customers are saying it too. Read their testimonials and see why they love working with us.

Trusted by global enterprise leaders

Sector spotlight

Software Client Reviews

How Callbox helps B2B SaaS and software leaders book qualified demos, accelerate pipeline velocity, and engage enterprise IT decision-makers.

Explore SaaS Lead Gen
Gradelink logo

Gradelink

Software

“They have helped us streamline our lead generation process.”

Feedback summary

“As a Project Manager, I highly recommend Callbox for any company looking for an efficient and reliable lead generation service. The team at Callbox has been exceptional to work with during the implementation process. From start to finish, they have been professional, responsive, and proactive in their approach. They have helped us streamline our lead generation process and have consistently provided us with high-quality leads. I appreciate their attention to detail and their willingness to work with us to ensure that our needs are met. Overall, I am impressed with the level of service and support we have received from Callbox and would definitely recommend them to any company looking to enhance their lead generation efforts.”

Vincent Yancoskie

Vincent Yancoskie

Project Manager, Gradelink

Read full story from Gradelink
Secova USA logo

Secova USA

Software

US474 North Lake Shore Drive Suite 4908 Chicago, IL 60611 USA

“Great initial appointment setting service”

Feedback summary

“Callbox provides us with high-quality initial appointments with pre-qualified prospects. Our sales team is happy with the quantity and quality of the initial meetings.”

Jochen (Joe) Ren

Managing Director, Secova USA

Story from Secova USA
OpsVeda Inc. logo

OpsVeda Inc.

Software

4030 Moorpark Ave Ste. 107, San Jose, CA 951174030 Moorpark Ave Ste. 107, San Jose, CA 95117

“Highly effective team with an impeccable work ethic”

Feedback summary

“We leverage Callbox as one of our primary resources for lead generation. - Our company has used Callbox to reach various industries and speak with senior members of those organizations. They have consistently performed and often outperformed our expectations for this type of service, from making the first contact, nurturing the prospect relationship, booking the first discovery call, and owning all of the touch points. They have always seemed to deliver.”

Perry Rowdy

Senior Business Development Executive, OpsVeda Inc.

Story from OpsVeda Inc.
Virtual Mgr logo

Virtual Mgr

Software

Rochester, NY

“Lu Alejandro and Callbox Experts”

Feedback summary

“Lu Alejandro and Callbox are the best at helping businesses grow and explained everything to me upfront. Lu is a professional expert from the start of the discussion with me. This company has helped us in a major way. Thank you very much. From Brian Damico Virtual Mgr Sales Director. 100 Percent recommended.”

Brian Damico

Regional Sales Manager, Virtual Mgr

Story from Virtual Mgr

Sector spotlight

IT Services Client Reviews

Connecting MSPs, cloud infrastructure providers, and cybersecurity firms with enterprise CIOs, CISOs, and technology stakeholders.

Explore IT Lead Gen
Audit Prodigy logo

Audit Prodigy

IT Services

USNorth America

“Callbox has proven to be an excellent appointment setter”

Feedback summary

“Callbox has been true to it's promise of being an excellent appointment setter for our company. We are satisfied with the qualified sales leads they bring to table and the service as well.”

Ravi Mangipudi

Ravi Mangipudi

CEO, Audit Prodigy

Read full story from Audit Prodigy
Insight Decision Solutions Inc. logo

Insight Decision Solutions Inc.

IT Services

CA8920 Woodbine Ave Suite 205, Markham, ON L3R 9W9, Canada

“Callbox Excellence”

Feedback summary

“We hired Callbox to help us with sales & marketing, social media & email marketing, plus lead generation.”

Claudia Wetzel

Operations Manager, Insight Decision Solutions Inc.

Story from Insight Decision Solutions Inc.
Cinco Enterprise Solutions logo

Cinco Enterprise Solutions

IT Services

Miami, Florida

“They are very professional.”

Feedback summary

“The process is simple, but Callbox shows professionalism in accomplishing the tasks, earning positive remarks from the client.”

Muhammed Aladdin

Founder, Cinco Enterprise Solutions

Story from Cinco Enterprise Solutions
CT4 logo

CT4

IT Services

Melbourne, Victoria

“Incredible Service and People”

Feedback summary

“If you are looking for a lead generation source, CallBox is the industry standard as far as I am concerned. I like how communicative they are. We have weekly sync up to go over what has transpired and what's coming. Complete with a follow-up email of the minutes. Getting my company's name out there. As brand recognition is so critical in this day and age, Callbox is a tremendous help!”

Derek Elliott

Tech Strategist, CT4

Story from CT4

Sector spotlight

Manufacturing Client Reviews

Connecting industrial equipment vendors with plant managers, operations heads, and procurement teams.

Explore Manufacturing Lead Gen
Inhalation Sciences logo

Inhalation Sciences

Manufacturing

USNorth America

“I highly recommend Callbox for lead generation services”

Feedback summary

“As a Chief Commercial Officer, I highly recommend Callbox for lead generation services. We have been using their services since 2022 and have been consistently impressed with their results. Callbox is incredibly result-oriented and has generated numerous leads for us in a stable pattern for over one year. They are dedicated and flexible, always finding new and innovative ways to exploit all sales channels, particularly LinkedIn. Their expertise and experience in this area have made them champions in the industry. We highly recommend Callbox to any company looking to increase their sales pipeline and revenue.”

Paolo Raffaelli

Paolo Raffaelli

Chief Strategic Officer, Inhalation Sciences

Read full story from Inhalation Sciences
Agol Worldwide logo

Agol Worldwide

Manufacturing

USNorth America

“Amazing , to the point.”

Feedback summary

“As a long-time user of Callbox, I can confidently say that it is an amazing tool that gets straight to the point. The platform's intuitive interface and robust features have greatly streamlined our sales and marketing efforts, allowing us to reach more prospects and close more deals. Additionally, the detailed analytics and reporting capabilities have provided valuable insights that have helped us make data-driven decisions. I highly recommend Callbox to any President looking to boost their company's sales and marketing performance.”

Jorge Medina Jr

President, Agol Worldwide

Story from Agol Worldwide
Crown Equipment (Singapore) Pte Ltd logo

Crown Equipment (Singapore) Pte Ltd

Manufacturing

SGSingapore

“We were very pleased with the vast improvements in metrics”

Feedback summary

“Equipped with extensive knowledge and a detailed workflow, Callbox succeeded in boosting the client's brand awareness from 31% to an impressive 61%. An average of 20 leads per month was also secured, resulting in stable database growth. The team was also commended for their research skills.”

Jacqueline Tan

Marketing Analyst for SEA Region, Crown Equipment (Singapore) Pte Ltd

Story from Crown Equipment (Singapore) Pte Ltd
Videojet Inc. logo

Videojet Inc.

Manufacturing

Wood Dale, Illinois

“Feedback was good and consistent.”

Feedback summary

“Since the project began last year, the client has seen over 120 additional leads come through to their sales team thanks to Callbox's efforts. The team communicates effectively through emails and calls. The data they provide is impressive.”

Benjamin Sobotka

North America Marketing Analyst, Videojet Inc.

Story from Videojet Inc.

Sector spotlight

Telecommunications Client Reviews

Explore how Callbox's multi-channel outreach and dedicated SDR teams deliver qualified B2B sales conversations.

Explore Industry Solutions
Telefonica logo

Telefonica

Telecommunications

Madrid, Spain

“We are very happy with the results”

Feedback summary

“Callbox is allowing us to increment our Inside Sales capabilities. Creating campaigns to attract new contacts both for new and existing customers. In the past few years we have been able to get in touch with top profile contacts that have enabled numerous new opportunities for the team. For me it is the team that makes all the difference. Adaptable and dedicated, they are a fantastic value to our company and have integrated very well with our own team.”

Almudena Aznar Iglesias

Almudena Aznar Iglesias

Lead Generation Manager Global Corporate Customers, Telefonica

Read full story from Telefonica
USA Digital Communications logo

USA Digital Communications

Telecommunications

USOklahoma City, USA

“They frequently ask for our feedback to customize and optimize our campaigns.”

Feedback summary

“Thanks to Callbox's efforts, the company is pleased with the number of qualified leads that they produce on an ongoing basis. The team establishes an effective workflow through weekly campaign status calls. They are always available when needed.”

Matt Estes

Account Manager, USA Digital Communications

Story from USA Digital Communications
Telefónica Global Solutions logo

Telefónica Global Solutions

Telecommunications

Miami, Florida

“Flexibility and proactivity are two of their strengths and key to their competitive advantage.”

Feedback summary

“The team helped to secure a few new customers that increased the client’s revenue. By collecting information about leads prior to sales meetings, Callbox enables representatives to tailor pitches and streamlines the sales process. The involvement of leadership supports the ongoing engagement.”

Paulo López

Marketing Operations Lead, Telefónica Global Solutions

Story from Telefónica Global Solutions

Sector spotlight

Business Services Client Reviews

Explore how Callbox's multi-channel outreach and dedicated SDR teams deliver qualified B2B sales conversations.

Explore Industry Solutions
Toppan Forms Singapore Pte Ltd logo

Toppan Forms Singapore Pte Ltd

Business Services

SGSingapore

“TOPPAN is delighted to work with CALLBOX and use their various marketing channels from traditional voice calls to social media”

Feedback summary

“In Today’s digital economy, we need a professional and responsive marketing support team that can help the organization reach out to the influencers and decision makers of targeted enterprises by geographic area and specific industry effectively. TOPPAN is delighted to work with CALLBOX and use their various marketing channels from traditional voice calls to social media and secure more F2F or online meetings with relevant prospects to create more business opportunities. We will continue working with CALLBOX across various sectors to create new product offerings that will improve our revenue gains overtime during this challenging business situation. Many thanks to the CALLBOX team for the support. Biz. Dev. Mgr of TOPPAN”

Joe Chua

Joe Chua

Manager, Business Development, Toppan Forms Singapore Pte Ltd

Read full story from Toppan Forms Singapore Pte Ltd
Onirik logo

Onirik

Business Services

“You are doing good work for us which is building into a healthy new pipeline.”

Feedback summary

“I just wanted to write another short thank you note. You are doing good work for us which is building into a healthy new pipeline. Each day I look forward to those e-mails you send which start “New Lead From Callbox” They all put a smile on my dial! Thank you for your efforts on our behalf, and thank you for the results which continue to meet or exceed our targets.”

Geoffrey Wade

Leadership & Psychological Safety Analytics, Onirik

Story from Onirik
Anago Cleaning Systems logo

Anago Cleaning Systems

Business Services

Pompano Beach, Florida

“Their customer service is impressive.”

Feedback summary

“Callbox successfully delivered effective lead generation work to the client. The team is communicative with the partner, and their customer service was notable”

Jesus Soto

Sales Representative, Anago Cleaning Systems

Story from Anago Cleaning Systems
Jan-Pro Cleaning Systems of Toronto logo

Jan-Pro Cleaning Systems of Toronto

Business Services

CACanada

“Our assigned account manager is very thorough and responsive”

Feedback summary

“Callbox generates great leads for the company. With their efficient support, the client has achieved a high close rate. They excel at collaborating and are quick to resolve issues.”

Shayaan Ali

Senior Sales Executive, Jan-Pro Cleaning Systems of Toronto

Story from Jan-Pro Cleaning Systems of Toronto

Sector spotlight

Other Industry Client Reviews

Explore how Callbox's multi-channel outreach and dedicated SDR teams deliver qualified B2B sales conversations.

Explore Industry Solutions
Shipwithu logo

Shipwithu

Other Industry

Antioch Nashville, Tennessee

“Their communication has been seamless, and they always deliver on time.”

Feedback summary

“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.”

Kreg Anderson

Kreg Anderson

Senior Business Development Manager, Shipwithu

Read full story from Shipwithu
Strategy Leaders logo

Strategy Leaders

Other Industry

Norwalk, Connecticut

“Their quality assurance team is dedicated to meeting our qualified lead generation goals.”

Feedback summary

“Callbox documents qualified leads in a database and excludes unqualified prospects to encourage successful outreach. By securing several companies, they helped generate revenue. Their timeliness supports the project’s seamless execution, while their flexibility enables them to tackle various tasks.”

Andi Gray

Owner, Strategy Leaders

Story from Strategy Leaders
MP Service Group logo

MP Service Group

Other Industry

Port St. Lucie, Florida

“There is always somebody in the other line to help and sort things out.”

Feedback summary

“Callbox continues to meet and close new accounts. The team's workflow is good.”

Greyven Landergren

Sales Director, MP Service Group

Story from MP Service Group
Firebird Security and Compliance Consulting LLC logo

Firebird Security and Compliance Consulting LLC

Other Industry

Phoenix, Arizona

“They were really responsive and courteous to my requests.”

Feedback summary

“Even during the COVID-19 pandemic, the Callbox team was still able to develop a pipeline for the company that provided them with 15 prospective clients per month. Even though the team needed a bit of experience in understanding the cybersecurity industry they were always responsive to the company.”

Wayne Salas

CEO, Firebird Security and Compliance Consulting LLC

Story from Firebird Security and Compliance Consulting LLC

Sector spotlight

Healthcare Client Reviews

Helping healthcare technology vendors navigate complex procurement and connect with clinical decision-makers.

Explore Healthcare Lead Gen
Total Health Chiropractic logo

Total Health Chiropractic

Healthcare

SGSingapore

“They are professional and courteous.”

Feedback summary

“Callbox generates a few leads every week. Their reports provide important information that helps the client have productive follow-up calls with potential buyers. To consistently improve the quality of their leads, they meet with the client bi-weekly to review data and make strategy adjustments.”

Vanessa Errington

Vanessa Errington

Owner/Founder, Total Health Chiropractic

Read full story from Total Health Chiropractic
Twiage logo

Twiage

Healthcare

New York, New York

“Callbox provided a team of impressive support people that worked with us on a routine basis.”

Feedback summary

“Callbox was able to schedule 3-5 demos for the client weekly, which was great metrics in their respective industry. The team's management is supportive.”

John Hui

Co-Founder & CEO, Twiage

Story from Twiage
Harris - PulseCheck logo

Harris - PulseCheck

Healthcare

Brentwood, Tennessee

“Callbox has a desire to satisfy their customers’ needs.”

Feedback summary

“Internal stakeholders are pleased with Callbox’s work, which resulted in the number of qualified leads they targeted at the beginning of the engagement. Along the way, the team was attentive, professional, and well organized, making for a smooth and successful partnership.”

Carl Schneider

Former VP of Sales, Harris - PulseCheck

Story from Harris - PulseCheck
ARC Medical, Inc. logo

ARC Medical, Inc.

Healthcare

Tucker, Georgia

“They have an excellent workflow.”

Feedback summary

“While the work is ongoing, Callbox has been able to improve the follow-up system of the company to their leads. They provide a cost-effective and high-quality service. Communicative and helpful, they work towards making the company profitable.”

Hal Norris

President & Founder, ARC Medical, Inc.

Story from ARC Medical, Inc.

Sector spotlight

Advertising & Marketing Client Reviews

Explore how Callbox's multi-channel outreach and dedicated SDR teams deliver qualified B2B sales conversations.

Explore Industry Solutions

We Simplify the Internet (WSI)

Advertising & Marketing

“The quality of leads appointments is excellent.”

Feedback summary

“Thank you for your follow-up. We are very satisfied with Callbox leads. We would like to book John's team for August, September, October & November for calling Tuesday, Wednesdays & Thursdays. Definitely, your team is doing a good job! The 2nd campaign cycle definitely improved over the 1st cycle. The quality of lead appointments is excellent. Thanks again.”

Lynne Motkoski

Lynne Motkoski

Digital Marketing Strategist, We Simplify the Internet (WSI)

Read full story from We Simplify the Internet (WSI)
Winsight logo

Winsight

Advertising & Marketing

“We agreed to continue our campaign with Callbox because we are seeing improvement of the calls.”

Feedback summary

“We agreed to continue our campaign with Callbox because we are seeing improvement of the calls. We like the contact we have with Melanie, Mae, Aubrey and Caren and we really see that the communication we have works in a positive way. We see that Caren is taking note of all the feedback we give and this causes better appointments. We are looking forward to further improve the next 5 weeks and have all the demo’s attend! Keep up the good work.”

Raymond Britt

CEO, Chief Digital and eCommerce Strategy Officer, Winsight

Story from Winsight

Webqem

Advertising & Marketing

AUSydney, Australia

“The professionalism in the setup and execution was second to none.”

Feedback summary

“I just wanted to write to you guys to say what a pleasure it has been working with you on our outbound lead generation campaigns in Singapore. The professionalism in the setup and execution was second to none. You opened up a number of opportunities that we are now capitalizing on. Well done and thanks!”

Larry Adler

Chief Operating Officer, Webqem

Story from Webqem
Atypical Digital logo

Atypical Digital

Advertising & Marketing

New York, New York

“We create the best workflow possible and we're still trying to improve it”

Feedback summary

“Thanks to Callbox, the client is now recording a total of 10-15 leads a week. Both teams are able to work effectively together. They are open-minded about the constant optimization process and are not scared of change and going out of their comfort zone.”

Sam Wong

Chief Revenue Officer, Atypical Digital

Story from Atypical Digital

Sector spotlight

Consumer Products Client Reviews

Explore how Callbox's multi-channel outreach and dedicated SDR teams deliver qualified B2B sales conversations.

Explore Industry Solutions
Save Alot Food Stores logo

Save Alot Food Stores

Consumer Products

“I have been very pleased with your results and Callbox has exceeded my expectations.”

Feedback summary

“I have been very pleased with your results and Callbox has exceeded my expectations. While 22 appointments to date may not seem a lot, I am happy with these results which have led to follow up in-person meetings by several of our team members.”

Mike Stout

Mike Stout

Director of License Business Development, Save Alot Food Stores

Read full story from Save Alot Food Stores

Sector spotlight

Financial Services Client Reviews

Supporting fintech, banking software, and financial service providers in reaching CFOs, treasurers, and risk executives.

Explore FinTech Lead Gen
Proper Finance logo

Proper Finance

Financial Services

“I believe your initial advice and ongoing support made it a success. I also found the campaign reporting easy to comprehend and very helpful in evaluating the strategy and results.”

Feedback summary

“I would like to write about our experience with your telemarketing campaign. From the planning and preparation stage, it was obvious that your services were focused on quality, not quantity. Your initial advice in relation to the target market, call list, and the script allowed us to narrow down the range of prospects and generate initial interest in our services from the exact type of business clients that we were looking for. After I attended the initial appointments, you offered a review to sharpen the strategy to better qualify the prospects. As a result, thereafter 100% of appointments were from our desired target group. One of the appointments created 3 opportunities, of which 2 have been converted. I believe your initial advice and ongoing support made it a success. I also found the campaign reporting easy to comprehend and very helpful in evaluating the strategy and results. Thank you for recommending the campaign and I would like to discuss with you using it again later in the year. Also, I will have no hesitation in recommending your telemarketing services to my business contacts and friends.”

Anton Vdovin

Anton Vdovin

Senior Mortgage Consultant, Proper Finance

Read full story from Proper Finance
ProbateCash logo

ProbateCash

Financial Services

West Palm Beach, Florida

“They are very professional and responsive.”

Feedback summary

“Thanks to Callbox's support, the company has reached more stakeholders while saving on costs. The team provides seamless communication and coordinates well whenever there's a change of schedule. Above all, they address roadblocks quickly and professionally, securing the ongoing partnership.”

Robin Shapiro

CEO, ProbateCash

Story from ProbateCash
AdvisorServe logo

AdvisorServe

Financial Services

Woodstock, Georgia

“Callbox did a great job of discovering who we were and who we needed to connect with.”

Feedback summary

“The company was able to connect with their ideal clients, thanks to Callbox's services. They took time to fully understand the company's business model and needs, enabling the team to accomplish their task successfully. They were receptive to feedback and provided excellent ideas for the project.”

Turner Lee

Director of Operations, AdvisorServe

Story from AdvisorServe
Intrepid Advisors logo

Intrepid Advisors

Financial Services

Marlborough, Massachusetts

“The Callbox team that has been assigned to our campaign has been outstanding.”

Feedback summary

“We engaged Callbox a couple of months ago to help us with our outbound lead generation efforts. We’ve already made the decision to double the amount of Callbox resources that we have assigned to our project because we’re really pleased with the results so far, we want to do a lot more.”

Jon Kaplan

Vice President of Sales, Intrepid Advisors

Story from Intrepid Advisors

Sector spotlight

Media Client Reviews

Explore how Callbox's multi-channel outreach and dedicated SDR teams deliver qualified B2B sales conversations.

Explore Industry Solutions
KOR Creative logo

KOR Creative

Media

NZAuckland, New Zealand

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

Feedback summary

“The company's ROI increased, thanks to Callbox's involvement. They achieved more sales and increased the size of their client base. The team worked with the firm smoothly and seamlessly, providing accurate and detailed reports on leads. They were also professional and highly responsive.”

Steve Wallace

Steve Wallace

Director, KOR Creative

Read full story from KOR Creative
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