Callbox Singapore Customer Reviews and Testimonials
See how we help businesses grow and succeed in our clients’ own words.
We would rather show you results than describe them. Below are verified Google reviews and in-depth client testimonials from Singapore B2B teams that partnered with Callbox Singapore for lead generation and appointment setting.
Trusted by global enterprise leaders
Our clients say we're the #1 Lead Generation Agency
“Callbox has been a great help in getting the right prospect for meetings.”
Challenge
The company is experiencing issues scheduling appointments and aims to generate market interest by clearly communicating the value of its solution.
Outcome
To increase market interest. Callbox optimized the company's brand communication and appointment scheduling strategy.
Francis Yip
Syniverse Technologies
“Passionate team and detail oriented.”
Challenge
Barracuda aims to expand in APAC but requires a stronger lead generation and brand awareness strategy.
Outcome
Callbox drove significant improvements in Barracuda's lead generation and brand awareness in APAC within six months.
Bel Ng
Barracuda
“They are quick to respond and delivers what we request.”
Challenge
Despite offering strong products, Vonage struggles to differentiate itself in a competitive market due to its limited marketing reach.
Outcome
Callbox, through targeted strategies, strengthened Vonage's market standing in the APAC market.
Elaine Tan
Vonage
Google Reviews
Real feedback from real clients. See what B2B teams across Singapore say about working with Callbox Singapore.
JH Law
Appreciate the leads generated the professional Callbox team. Great job!
Christopher Mills
Callbox are very professional and do what they say.. Core Measures recommends them.
David Falk
Great Team, exceptionally trained and highly effective.
Bel Ng
Professional team with passion! Being flexible and brings the best service to customer! Highly recommend!
Pierre V
they are nice guys working there, Roma my CSM is very professional, clear and structured ! A pleasure to work with Callbox team !
Latif Sim
Been working with the Callbox for 2 seasons now. Very professional and very on task! Do consider them if you are looking for a professional team for your business!
Nitin Thapar
It has been a great experience working with CallBox. The team is highly supportive and flexible in customising the campaigns as per your market and TG. Van has been excellent in su…
Edel uddin
Callbox offerings are the most competitive in the market and their account executives leave an indelible mark on prospects making sales a smooth transition for the internal sales t…
Vipul Toshniwal
I spoke Van to about B2B lead generation for a SAAS product we are developing. His presentation was extremely clear an on point with what we want from a Lead gen partner. This real…
Qupsy Qupsy
Callbox has been great to work with, their account and operations manager collaborates closely with us to overcome any challenges. They also take the initiative to optimize the pro…
Siva Sai Krishna
This is the team which I always wanted to work with,well organised and very responsive with the right attitude and great understanding of our services, infact we are a software ser…
Joe Chua
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…
Thangaraj Duraisamy
Very good agency for digital marketing activities.
Muhammad Hamza
Truly professional people!
G2 Reviews
Verified feedback from Asia-based clients, sourced directly from Callbox's G2 profile.
Meichin T.
Head of Marketing Communications · Small-Business (50 or fewer emp.) · Dec 22, 2024
“Trusth-worthy team, timely and accountable for everything they do”
Alan O.
Product Manager - Rapid Diagnostics Division · Mid-Market (51-1000 emp.) · Dec 16, 2024
“Delivering the right leads to unlock revenue potential”
Jan V.
Managing Director · Small-Business (50 or fewer emp.) · Oct 5, 2022
“Efficient & Effective Lead Generation”
Kenta I.
Mid-Market (51-1000 emp.) · Dec 30, 2024
“Great Communication and Effort”
Verified User
Information Technology and Services · Dec 19, 2024
“Professional, great service, flexible”
KC
Mid-Market (51-1000 emp.) · Dec 16, 2024
“Callbox delivering success”
Verified User
Information Technology and Services · Dec 17, 2024
“Callbox - lead generation campaigns”
Verified User
Health, Wellness and Fitness · Dec 19, 2024
“Generating leads in a niche market”
Verified User
Financial Services · Dec 17, 2024
“A Reliable Partner for Scalable Lead Generation”
Verified User
Information Technology and Services · Jan 13, 2025
“Effective Volume Outreach”
Clutch Reviews
Verified feedback from Singapore-based clients, sourced directly from Callbox's Clutch profile.
Anonymous
Sales Operations Specialist, IT Services Company · Jan 9, 2025
“They're very prompt in responding to emails.”
Callbox has been consistently delivering 1-2 contacts or leads per month and successfully booking appointments. The team is prompt, responsive, and flexible to the client's needs. …
5
Quality
5
Schedule
4.5
Cost
4
Refer
Varun Suneja
Senior Regional Marketing Manager (APAC), Cepheid · Dec 23, 2024
“Callbox is an organization that is professionally managed and process-oriented.”
Callbox has delivered 1,500 outbound calls, 36 MQLs, 10 SQLs, one sales opportunity, 23 new accounts, and 42 enriched contacts. The team has been competent and worked with resilien…
4.5
Quality
4
Schedule
3.5
Cost
4.5
Refer
Anonymous
Business Development Manager, Logistics Company · Dec 17, 2024
“They're a great partner to work with.”
5
Quality
5
Schedule
4
Cost
5
Refer
Anonymous
Regional Sales Director, SaaS Company · Sep 22, 2021
“Their responsiveness and their ability to get things done are impressive.”
4.5
Quality
5
Schedule
5
Cost
5
Refer
Elaine Tan
Regional Marketing Manager, IT Services Company · Aug 26, 2021
“They are quick to respond and delivers what we request.”
4.5
Quality
5
Schedule
4.5
Cost
5
Refer
Anonymous
Sales Operations, PropTech Company · Jan 13, 2025
“They are communicative, reliable, and transparent.”
5
Quality
5
Schedule
4.5
Cost
5
Refer
Top Ranking B2B Lead Generation Services
Over 14 years of consistent industry recognition for delivering high-quality B2B leads across Singapore and the APAC region.
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