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
8 Companies-Rankings updated: September 05, 2026
DesignRush evaluates all telemarketing firms based on their expertise, success stories, and verified client reviews. Some listings may be paid.
BPO Company India | Call Center Outsourcing | Ascent BPO
Ascent BPO Services focuses on delivering quality call center outsourcing and customer care services. Our dedication to client satisfaction ensures high‑quality results in data entry, conversion, and support...
Top Services:
BPO
Call Centers
Business Consulting
HR Outsourcing
Customer Support
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Location
Noida, India
Number of Employees
100 - 249
Average Hourly Rate
$50/hr
Minimal Budget
Under $1,000
Portfolios Count
3 Projects Listed
Ascent BPO Services Services
BPO
Call Centers
Business Consulting
HR Outsourcing
Customer Support
Phone Answering Services
SEO
Cloud Consulting
Web Development
Digital Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Guwahati University
Silver Pumps & Motors
Pradhan Mantri Kaushal Vikas Yojana
IndiaMART
HDFC Bank
Data sourced from the agency's DesignRush profile
Ascent BPO Services Reviews & Testimonials
Ankit Kumar Review from Google
1.0★
Ankit Kumar's Review Sourced from Google
I passed the interview at Asant Bapo but was late on the second day. I was thrown out for 20 minutes and asked to take leave.
Kanchan Srivastav Review from Google
5.0★
Kanchan Srivastav's Review Sourced from Google
We've been working with Ascent BPO for the past few months, and I must say their service has exceeded our expectations. The team is professional, responsive, and consistently delivers high-quality results. From data entry to back-office support, their attention to detail and commitment to deadlines has really helped streamline our operations. Communication has been smooth, and any issues are quickly addressed. Highly recommend them if you're looking for a reliable and efficient BPO partner.
Vikas Srivastav Review from Google
5.0★
Vikas Srivastav's Review Sourced from Google
Ascent bpo has truly exceeded our expectations. Their team is efficient, professional, and dedicated to providing high - quality services. They've helped streamline our processes and allowed us to focus on core operation. Highly recommended
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
A global Digital Marketing Agency helping brands streamline and scale their business with bespoke SEO, Social Media Marketing, PPC, Email Marketing, Content Marketing, Database generation, Lead Generation, Branding, and Website development solutions.We help you grow your business online...
Top Services:
SEO
Digital Marketing
WordPress Website Design
Digital Services
Social Media Marketing
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Location
Pune, India
Number of Employees
Under 49
Average Hourly Rate
$15/hr
Minimal Budget
Under $1,000
Espial Solutions Services
SEO
Digital Marketing
WordPress Website Design
Digital Services
Social Media Marketing
Content Marketing
Email Marketing
PPC
Customer Support
eCommerce
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
TelerainMD
Boomerang Transportation
Bow and Baan Technology Services Pvt. Ltd.
Data sourced from the agency's DesignRush profile
Espial Solutions Reviews & Testimonials
Ahmed Iqbal Khan Senior O&M Engineer at Amin Renewable Energy Company SAOC at Amin Renewable Energy Company SAOC
5.0★
PPC Review from Ahmed Iqbal Khan
Espial worked for us to deliver quality leads through PPC campaigns. Our challenge was that we hardly had 1% conversion from all the clicks that we were getting through Google Adwords. Within a month our lead to conversion increased from 1% to 5%, that was a remarkable achievement. They know which design and content works best. The level of communication and responsiveness that we receive from them makes them incredibly easy to work with.
Saurabh Agarwal IT Manager at TelerainMD Inc
5.0★
SEO Review from Saurabh Agarwal
We are very satisfied with the services received so far in these 7 months. Because of Espial Solution's efforts, the site's traffic boosted and most keywords used got high-rankings on Google search. As a result, the client receives more organic conversions and customer satisfaction. The team is very professional and punctual.
Rajeev Mehta President at Medical Transportation Company
5.0★
Digital Marketing Review from Rajeev Mehta
Working with them is quite fluid, they are available 24 hours of the day. Thanks to the work of Espial Solutions, website traffic increased and sales grew by almost 50%. The workflow is fluid, as the team is available all day. The client is impressed with the analytical way that Espial Solutions did their work, studying the business model first before starting.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
LHB Consulting, a London-based lead generation agency with two decades of experience, specializes in a range of services, including telesales, telemarketing, appointment scheduling, the creation and follow-up of email marketing campaigns, and data cleansing...
Top Services:
Call Centers
Digital Marketing
Location
Uxbridge, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$50/hr
Minimal Budget
Under $1,000
LHB Consulting Services
Call Centers
Digital Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
FSL Events
GT Associates
Dolphin Group
Top Brand Cars
Manor House Autos
Route Trader
Tiger Like Events
Data sourced from the agency's DesignRush profile
LHB Consulting Reviews & Testimonials
George Webb Review from Google
1.0★
George Webb's Review Sourced from Google
*** SCAM ALERT ***I strongly advise staying away from this organisation. Ernest comes across as a nice person however he is extremely unprofessional and will not follow through on any professional or financial promises. PLEASE DO NOT USE.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Instant Solution is a top BPO company in Bangladesh, offering world-class call center, data management, and business support services globally. With expertise in data processing, customer support, healthcare BPO, and e-commerce, we ensure secure, accurate, and efficient solutions. Operating in Bangladesh and...
Top Services:
BPO
Business Consulting
Call Centers
Phone Answering Services
Customer Support
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Location
Dhaka, Bangladesh
Number of Employees
Under 49
Average Hourly Rate
$8/hr
Minimal Budget
Under $1,000
Portfolios Count
1 Project Listed
Instant Solution Services
BPO
Business Consulting
Call Centers
Phone Answering Services
Customer Support
Transcription Services
Translation Services
Market Research
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Elevate your business outreach strategies with Webwers' innovative Bulk SMS Dialer Services and Cloud Contact Center solutions. Our services empower you to seamlessly connect with your customers, ensuring efficient and effective communication channels. With our cutting-edge Bulk SMS Dialer Services, reach...
Top Services:
Web Development
Affiliate Marketing
Digital Marketing
Email Marketing
Cloud Consulting
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Location
Noida, India
Number of Employees
Under 49
Average Hourly Rate
$50/hr
Minimal Budget
Under $1,000
Portfolios Count
4 Projects Listed
Webwers Cloudtech Private Limited Services
Web Development
Affiliate Marketing
Digital Marketing
Email Marketing
Cloud Consulting
Call Centers
Customer Support
BPO
Business Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
The consultancy is superb and with they having office just near sec62 makes things only easier for us in terms of brainstorming and solutioning for our weekly stock clearance sale campaigns. I am very much now dependable on them to make my marketing goals achievable for every passing quarter.
Clash with Vikas Review from Google
5.0★
Clash with Vikas's Review Sourced from Google
Since implementing Webwers Cloudtech’s auto dialer software, our outbound call efficiency has improved by 40%, resulting in a significant boost in sales revenue.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
We are the fastest-growing BPO in India. Offers the best business opportunities in the industry. Deals in non-voice process, voice process, BPO solutions, banking process, digital marketing, and IT projects...
Top Services:
BPO
Business Consulting
HR Outsourcing
Customer Support
Show more
Location
Noida, India
Number of Employees
Under 49
Average Hourly Rate
$50/hr
Minimal Budget
Under $1,000
Zoetic BPO Services Services
BPO
Business Consulting
HR Outsourcing
Customer Support
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
LMS is unique in her way of operating. We implement High Performance Work Systems, driven by innovative thinking. This allows us to prioritize the Quality and Quantity of our services. Our skilled workforce is eager to get the job done!...
Top Services:
Call Centers
Phone Answering Services
BPO
Customer Support
HR Outsourcing
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Location
Paramaribo, Suriname
Number of Employees
100 - 249
Average Hourly Rate
$12/hr
Minimal Budget
Under $1,000
Logical Moderator Solutions Services
Call Centers
Phone Answering Services
BPO
Customer Support
HR Outsourcing
Public Relations
Business Consulting
Managed Services
Big Data Analytics
Digital Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Scale Your Business With Quality Outsourced Teams In Back Office Support.
RPM stands out as a comprehensive solution provider, offering bilingual expertise in both English and Spanish, with the flexibility to provide full-time or part-time dedicated resources, fully managed to meet diverse operational needs. Our capabilities span a wide spectrum, encompassing intricate back-office...
Top Services:
BPO
Customer Support
Call Centers
Staff Augmentation
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Location
San Jose, California
Number of Employees
100 - 249
Minimal Budget
Under $1,000
RPM Services
BPO
Customer Support
Call Centers
Staff Augmentation
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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