Callbox, Martal Group, CIENCE, TeleDirect, Leadium - these are among the top telemarketing companies sales teams rely on to generate qualified leads, increase conversion rates, and build consistent pipelines through targeted outreach and performance-driven communication strategies.
Best Telemarketing Firms
4 Companies-Rankings updated: September 04, 2026
DesignRush evaluates all telemarketing firms based on their expertise, success stories, and verified client reviews. Some listings may be paid.
Award-winning Singapore-based IT solutions company with over 15 years of experience.
Top 10 Web and Mobile App Developer in Singapore | ISO Certified | Top 100 Singapore's fastest-growing companies 2024...
Top Services:
Software Development
Mobile App Development
Web Development
Blockchain
AI Development
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Location
Singapore, Singapore
Number of Employees
250 - 499
Average Hourly Rate
$30/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
16 Projects Listed
Vinova Services
Software Development
Mobile App Development
Web Development
Blockchain
AI Development
IT Services
ERP Consulting
Staff Augmentation
Web Design
BPO
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
AIA
Prudential
Samsung
DHL
Abbott
MARS
FWD
SingHealth
PWC
Yale NUS
Data sourced from the agency's DesignRush profile
Vinova Reviews & Testimonials
Ben Dietrich
CEO at Mediacharge
5.0★
Mobile App Development Review from Ben Dietrich
The thing we appreciate the most about Vinova is their dedication to understanding our specific needs and delivering tailored solutions. Their team was not just focused on completing the project but also on adding value to our business. Their expertise in software development, proactive approach, and consistent communication made the whole process remarkably smooth. Their development team was agile, and their project managers were incredibly effective in handling any hiccups along the way.
Cody C. Jensen
CEO at Searchbloom
5.0★
Software Development Review from Cody C. Jensen
The endeavor was titled "Operational Excellence System" and was executed in collaboration with Vinova. The aim of this project was to create an internal corporate system designed to automate and manage various operational processes within our organization. The system needed to integrate with existing tools and allow for real-time tracking, monitoring, and analytical reporting. Vinova delivered this system and continues to provide ongoing support and updates.
Scott Darrohn
Co-Founder at fishbat
5.0★
Web Development Review from Scott Darrohn
I had the pleasure of working with Vinova on developing a website for my company, and I can confidently say they exceeded my expectations. From start to finish, their team demonstrated exceptional expertise, professionalism, and dedication.
Reviews verified by DesignRush and sourced from the agency's profile
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Zaphyre is an Execution Service Partner helping B2B companies scale through content marketing, outbound sales, lead generation, and virtual staffing. We embed execution teams that turn strategy into measurable growth...
Top Services:
BPO
Email Marketing
Digital Marketing
Market Research
Content Marketing
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Location
Fairfax, Virginia
Number of Employees
100 - 249
Average Hourly Rate
$40/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
2 Projects Listed
Zaphyre LLC Services
BPO
Email Marketing
Digital Marketing
Market Research
Content Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
ATM Group is a customer operations and revenue outsourcing company. We deliver contact centre outsourcing, revenue generation programmes, multilingual support and AI-enabled optimisation in the UK, Europe and South Africa...
Top Services:
BPO
Call Centers
Phone Answering Services
HR Outsourcing
Customer Support
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Location
Leicester, United Kingdom
Number of Employees
1000 & Up
Average Hourly Rate
$20/hr
Minimal Budget
$10,000 - $25,000
ATM Group Services
BPO
Call Centers
Phone Answering Services
HR Outsourcing
Customer Support
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Boots Opticians
Vodafone
Ziggo
Old Mutual
Data sourced from the agency's DesignRush profile
ATM Group Reviews & Testimonials
Lale K
Review from Google
5.0★
Lale K's Review Sourced from Google
I worked here for 3 months and my experience was (contrary to the reviews below) very nice, easy going. The management accommodated my personal circumstances and provided ease into adapting to the role, support was always available as well as humour and banter from colleagues. Perfect transition job from hospitality to office roles. Bonus points for progressing employees internally to higher roles accordingly.
An Ash
Review from Google
1.0★
An Ash's Review Sourced from Google
How did managers help with a transfer of service for a customer who left review.Because at managements rule is to never disclose that they are calling from at management,they are only to represent and use their clients name. What’s even funnier is this customer was considered special from the rest. They were not only informed it was at management dealing with their service but they even knew the real names of the managers.Another common practice is staff and managers mostly use a dummy name not their real. But in this case even that info was provided to the customer. Must be a special customer that the normal practices were broken for them and they from millions of customers even took the time to write a review lol . Everyone laugh with me.
Tim Lee
Review from Google
5.0★
Tim Lee's Review Sourced from Google
Both Adnan & Connor at AT Management were superb in their dealings with me over the transfer of a service when I was moving house. Nothing was too much trouble & their knowledge was very good. I’d have no hesitation in recommending these two individuals or AT Management
Reviews verified by DesignRush and sourced from the agency's profile
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While everyone is focused on artificial intelligence, joyno is focused on human intelligence. Our employees undergo a vigorous training regimen designed to enhance the enormous talent and innate thirst for knowledge they desire. A positive attitude and authentic gratitude fosters the team spirit to endure the...
Top Services:
Call Centers
BPO
Customer Support
Phone Answering Services
Business Consulting
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Location
Lapu-Lapu City, Philippines
Number of Employees
50 - 99
Average Hourly Rate
$10/hr
Minimal Budget
$1,000 - $10,000
Joyno Inc. Services
Call Centers
BPO
Customer Support
Phone Answering Services
Business Consulting
Market Research
IT Services
Creative Services
Managed Services
Social Media Marketing
Digital Strategy
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
5 Frequently Asked Questions About Telemarketing Firms
What do telemarketing companies do?
Telemarketing agencies use phone-based direct marketing to sell products, generate leads, or book appointments on behalf of businesses, performing both outbound and inbound calls to grow sales pipelines and client relationships.
As all telemarketing interactions involve direct human contact, the approach allows them to influence potential customers’ opinions, purchasing habits, or perceptions toward a brand.
What services do telemarketing firms provide?
Telemarketing services for businesses can be split into two main categories: inbound and outbound.
Inbound telemarketing services cover customer support calls, namely technical support, order taking, billing inquiries, upselling, and virtual receptionist service, to name a few. They can support both B2B and B2C companies.
Outbound telemarketing services, also referred to as proactive outreach, are intended to boost businesses’ bottom line. This category comprises several different service types, including lead qualification, appointment setting, cold calling, customer reactivation, and more.
B2B telemarketing companies are often hired to assist non-profit organizations in soliciting donations or to collect debt and follow up on overdue accounts on behalf of other businesses.
How much do telemarketing agencies charge for their services?
Telemarketing agencies charge between $7 and $75 per hour for their services. The service cost can also vary based on location (offshore vs. onshore), campaign complexity, duration, and agent experience, with B2B telemarketing campaigns often costing more than B2C.
Other common pricing models include:
Per-lead: $35 to $60 per qualified lead
Flat-rate: $650+ for a 4-week campaign
Commission-based: 5% to 20% of each closed sale
How long do telemarketing campaigns take?
Telemarketing campaigns usually take a few months, as lead nurturing takes multiple phone calls for telemarketers to engage with a prospect and close a sale.
Although initial lead generation begins within the first few weeks, for a full, effective cycle, the campaigns are run between 3 and 6 months. The average campaign takes about 14 weeks to reach an optimum level of opportunities per day. The length also depends on the campaign type:
Pilot and trial campaigns: Usually run for 10 to 12 weeks to test the market, refine the pitch, and validate traction.
Short campaigns: 4 to 6 weeks for time-sensitive promotions or event registrations.
Long-term campaigns: 6 months to over a year for slow B2B sales cycles that require more lead nurturing.
What kind of ROI can businesses expect from telemarketing campaigns?
Lucrative telemarketing campaigns often result in a 5:1 to 10:1 return on investment (ROI), meaning $5 to $10 in revenue for every $1 spent. The return rate depends on the quality of the call lists, the persuasion skill of the callers, the product, the offer, and whether it's part of a multi-channel strategy. Notably, ROI grows over time through stronger customer retention and better targeting informed by feedback from calls.
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