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
10 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.
Denave is a B2B sales enablement organization based in Malaysia that offers a complete range of demand generation and lead generation solutions. Denave offers services including Business process outsourcing, digital marketing and B2B data services...
Top Services:
Digital Marketing
Event Marketing
Call Centers
Customer Support
Email Marketing
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Location
Kuala Lumpur, Malaysia
Number of Employees
1000 & Up
Average Hourly Rate
$50/hr
Minimal Budget
Under $1,000
Portfolios Count
1 Project Listed
Denave Services
Digital Marketing
Event Marketing
Call Centers
Customer Support
Email Marketing
Business Consulting
Social Media Marketing
Direct Marketing
Advertising
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Lenovo
Saint Gobain
Marg
Data sourced from the agency's DesignRush profile
Denave Reviews & Testimonials
Rutteren Morgan
Review from Google
1.0★
Rutteren Morgan's Review Sourced from Google
I recently attended an interview with Denave for a Talent Acquisition role, and it was a disappointing experience. The interviewer Shalini (Global HR) demonstrated a lack of professionalism throughout the session.
I felt I was not given a fair chance to express myself, as the interviewer appeared more interested in steering the conversation to her preferences. Additionally, I was surprised by her comments about my career transitions, especially since her profile suggests similar patterns.
The session was further marred by poor etiquette, such as answering phone calls during the interview. As someone with extensive experience in recruitment, I expected a higher standard of professionalism from a company like Denave. This experience has raised concerns about their commitment to a candidate-focused hiring process.
Vy Ro Cam
Review from Google
5.0★
Vy Ro Cam's Review Sourced from Google
It's has been 8 months now since I joined the company, such a great team ever. Co-workers are friendly, Team leaders are very supportive and thoughtful. HR team, IT team always response immediately when ever have an issue. :)
NGUYEN TRAM
Review from Google
5.0★
NGUYEN TRAM's Review Sourced from Google
October 2021 will mark my 6th anniversary of my employment at Denave.
Something that I have experienced in Denave is the encouragement for growths.
I have moved up over 6 years in Denave. When I joined Denave I didn’t see myself as a manager, and now I manage multiple people. And I was only able to do that through the support from my team and the encouragement of my managers .
It has been a great journey to me and I am proud to be a part of Denave family.
Reviews verified by DesignRush and sourced from the agency's profile
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Mysoft Heaven (BD) Ltd. is a Top Software Development Company with 15+ years of excellence. We specialize in enterprise-grade solutions like ERP, FinTech, e-Governance, and HRMS (HR Sheba). Our scalable SaaS platforms and Cyber Security solutions empower global organizations...
Top Services:
Web Development
Digital Marketing
Mobile App Development
Software Development
Staff Augmentation
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Location
Mirpur, Bangladesh
Number of Employees
250 - 499
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Mysoft Heaven Services
Web Development
Digital Marketing
Mobile App Development
Software Development
Staff Augmentation
BPO
HR Outsourcing
Web Design
Digital Services
SEO
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Land Reforms Board, Ministry of Land
Bangladesh Agricultural Development Corporation
Bangladesh Scout, Ministry of Education
Bangladesh Bureau of Statistics (BBS)
a2i & UNDP
JICA+ NILG
Bangladesh Trade and Tariff Commission, Segunbagic
Alliance Group, Bangladesh
Centre for the Rehabilitation of the Paralyzed
JT Enterprises
Data sourced from the agency's DesignRush profile
Mysoft Heaven Reviews & Testimonials
Jahidul Islam
Review from Google
5.0★
Jahidul Islam's Review Sourced from Google
Coordination-focused role with cross-team interaction
Pros:
Regular interaction with developers, clients, and management helps build strong communication and coordination skills.
Cons:
Managing multiple stakeholders at the same time can be challenging.
Advice to Management:
Clearer role boundaries would help reduce dependency-related delays.
SAHED HOSHEN
Review from Google
5.0★
SAHED HOSHEN's Review Sourced from Google
"Choosing Mysoft Heaven (BD) LTD was the best decision! They combined innovation with flawless execution, delivering our project on time and beyond our expectations. Amazing work!"
SM Nasim Abbas
Review from Google
5.0★
SM Nasim Abbas's Review Sourced from Google
"I've been using There software for my small business, and I can't imagine going back to the old way of doing things. It has simplified so many tasks, saving me hours of work each week. Their support team is always there to help if I need anything!"
Reviews verified by DesignRush and sourced from the agency's profile
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Reexia is a UK-based B2B lead generation and telemarketing agency helping companies connect with decision-makers and generate qualified business opportunities. Through targeted outreach, data-driven campaigns, and a combination of telemarketing and email marketing, Reexia supports organisations look...
Top Services:
Call Centers
Email Marketing
Direct Marketing
SEO
BPO
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Location
Birmingham, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$30/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
2 Projects Listed
Reexia Limited Services
Call Centers
Email Marketing
Direct Marketing
SEO
BPO
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Aerospace
IT
Telecomunication
Retail
Manufacturing
Data sourced from the agency's DesignRush profile
Reexia Limited Reviews & Testimonials
James Nolan
Business Development Manager at Jeddio Tech
5.0★
Lead Generation Review from James Nolan
We worked with Reexia to support our outbound business development and lead generation efforts. The team helped us structure a targeted outreach campaign and build a relevant prospect database for our market.
Communication throughout the project was clear and organised. We had bi-weekly calls to review activity and results, and Kevin was very hands-on in guiding the campaign and suggesting adjustments where needed.
Results took some time to appear, but this was explained clearly at the start of the campaign and expectations were set appropriately. Once the campaign gained momentum, we began having conversations with companies that matched our target profile.
Overall, it was a positive experience and we appreciated their structured approach to outbound prospecting.
Giles Strong
Review from Google
5.0★
Giles Strong's Review Sourced from Google
Reexia has been a game-changer for our business. Their expert guidance in implementing CRM tools streamlined our entire sales process, making it more efficient and effective. On top of that, their SEO advice helped boost our online visibility significantly. Professional, insightful, and a pleasure to work with—highly recommended
Vanessa Mattia
Review from Google
5.0★
Vanessa Mattia's Review Sourced from Google
We've been working with Reexia for our sales outreach and lead generation, and they’ve been absolutely outstanding. Their service is incredibly personal and responsive — it genuinely feels like they’re part of our team. They’ve taken the time to understand our business and target audience, and the results speak for themselves. We’re seeing consistent, high-quality leads and a real uplift in engagement. If you’re looking for a hands-on, strategic partner to drive your sales pipeline, we can’t recommend them enough.
Reviews verified by DesignRush and sourced from the agency's profile
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VerifiedVerified by the DesignRush team for authenticity and credibility.
All-In-One E-commerce Technology Solution Provider: Because Every Click Matters.
Vserve Ebusiness Solutions is an AI-powered Supply Chain Management and Ecommerce company with 10+ years of global delivery. We provide offshore teams, BPO, procurement, order and inventory management, customer support, and ecommerce solutions to reduce costs and improve efficiency...
Top Services:
Logistics
Accounting
eCommerce Development
BPO
Call Centers
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Location
New York City, New York
Number of Employees
500 - 999
Average Hourly Rate
$25/hr
Minimal Budget
Under $1,000
Portfolios Count
1 Project Listed
Vserve Ebusiness Solutions Services
Logistics
Accounting
eCommerce Development
BPO
Call Centers
Web Design
eCommerce
SEO
Customer Support
Phone Answering Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Traci Miller
Marcia Maples
Joseph Powell
Data sourced from the agency's DesignRush profile
Vserve Ebusiness Solutions Reviews & Testimonials
Marie M. Harris
Undisclosed at Retail
5.0★
Customer Support Review from Marie M. Harris
Although we have been struggling before, after expanding our influence into mountain wear and watches, it became evident that we needed some professional help. We were offering many new products, and making matters worse, we were present in different foreign markets, which mean many competitors to keep an eye on. After some consultations with the Vserve team, we had no doubts that they were the solution we had been looking for. Thanks to their proven MAP enforcement strategies, maintaining our market position is now easier. We always have accurate pricing information at our fingerprints. I must say, we are really impressed with Vserve.
Danielle W
Undisclosed at Retail
5.0★
Customer Support Review from Danielle W
Our company is grateful to have found a collaborative team in Vserve for our Product Information Management. Initially, we were unsure about the quality of product descriptions and their accessibility to our buyers. However, Vserve’s expertise in programming language and business best practices helped us to manage our complete product information and catalog pretty well. The conversion rate excelled our expectations, and our products shot up on Google rankings!
Reviews verified by DesignRush and sourced from the agency's profile
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LTS Global Digital Services, based in Vietnam, specializes in providing comprehensive digital BPO services. Our expertise encompasses data processing, RPA solutions, and a range of other business process outsourcing services designed to enhance operational efficiency and drive growth for our clients...
Top Services:
IT Services
BPO
Call Centers
Customer Support
AI Development
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Location
Hanoi, Vietnam
Number of Employees
100 - 249
Average Hourly Rate
$25/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
2 Projects Listed
LTS Global Digital Services Services
IT Services
BPO
Call Centers
Customer Support
AI Development
ERP Consulting
Managed Services
IT Compliance Solution
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
DGC BPO Service is a premier US-based outsourcing company offering expert customer service, call center solutions, virtual assistance, and lead generation. We help businesses optimize operations, improve customer experiences, and drive growth with tailored, efficient solutions...
Top Services:
BPO
Call Centers
Customer Support
Phone Answering Services
Digital Marketing
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Location
New York City, New York
Number of Employees
Under 49
Average Hourly Rate
$25/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
1 Project Listed
DGC BPO Service Services
BPO
Call Centers
Customer Support
Phone Answering Services
Digital Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Axendi is one of Europes leading providers of AI-powered contact center and BPO services. Since 2008, Axendi has been designing value-driven customer experiences by combining operational expertise with technology and in-depth vertical advisory...
Top Services:
Call Centers
BPO
Customer Support
Phone Answering Services
AI Development
Show more
Location
Warsaw, Poland
Number of Employees
1000 & Up
Average Hourly Rate
$25/hr
Axendi Services
Call Centers
BPO
Customer Support
Phone Answering Services
AI Development
IT Services
Business Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
L'Oreal
BNP Paris
Allegro
Volvo
Empik
Affidea
Rossmann
Data sourced from the agency's DesignRush profile
Axendi Reviews & Testimonials
Oskar Jan
Review from Google
1.0★
Oskar Jan's Review Sourced from Google
Voice Contact Center sp. z o.o. is harassing people at the behest of Tauron. The company is unreliable and lacks professionalism in customer service.
Dawid Gadecki
Review from Google
5.0★
Dawid Gadecki's Review Sourced from Google
The professionalism of this company stems primarily from a long-standing foundation built on an excellent management team. The knowledge of those responsible for preparing employees for the job is also at a high level. They provide both practical and practical training to prepare even the most novice for work in a contact center. Best regards, Dawid Gadecki
MoMa
Review from Google
1.0★
MoMa's Review Sourced from Google
A very chaotic conversation, with an arrogant woman who struggles to name the company she works for. Her voice is filled with dissatisfaction and disrespect. I wouldn't recommend this company if I'd known sooner (she called as a representative of Alior Bank, which confused me, but when she started asking strange questions, I realized something was wrong). I don't recommend contacting this company.
Reviews verified by DesignRush and sourced from the agency's profile
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We are company specializing in outbound sales, aiming to help you increase your number of clients or customers. Our business models goal is to schedule meetings with potential clienst for you...
Top Services:
Email Marketing
Direct Marketing
Business Consulting
Market Research
Call Centers
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Location
Belgrade, Serbia
Number of Employees
Under 49
Average Hourly Rate
$20/hr
Minimal Budget
$1,000 - $10,000
Triballi Services
Email Marketing
Direct Marketing
Business Consulting
Market Research
Call Centers
Phone Answering Services
Customer Support
CRO
Event Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
1840 & Company is a global provider of talent and team solutions devoted to empowering businesses with scalable, on-demand workforce solutions. With a stringent verification procedure and a network of professionals in 150 countries, we connect organizations with remote talent of the highest caliber. Our...
Top Services:
BPO
Staff Augmentation
HR Outsourcing
Customer Support
Call Centers
Show more
Location
Overland Park, Kansas
Number of Employees
500 - 999
Average Hourly Rate
$10/hr
Minimal Budget
$10,000 - $25,000
1840 & Company Services
BPO
Staff Augmentation
HR Outsourcing
Customer Support
Call Centers
Transcription Services
Translation Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Groupon
Isango
Instacart
HomeLight
LearnZillion
Data sourced from the agency's DesignRush profile
1840 & Company Reviews & Testimonials
carmen noche
Review from Google
5.0★
carmen noche's Review Sourced from Google
It was a very productive and swift process. Starting from the interview, to assessments. Everyone was punctual and need not wait for a week or so for updates. They give updates immediately no need for the long wait and suspense. Keep it Up!!
lucille Mrrs
Review from Google
5.0★
lucille Mrrs's Review Sourced from Google
My experience with 1840 & Company’s recruitment process has been excellent from start to finish. The team was professional, responsive, and supportive throughout every step. Communication was always clear, and I truly appreciated how smooth and organized the process was. I felt valued as a candidate, and I’m very excited to officially join as a Patient Support-CSR. Thank you to the team for making this such a positive experience!
Andrea Yáñez
Review from Google
5.0★
Andrea Yáñez's Review Sourced from Google
I had a truly outstanding experience with 1840&Co throughout the entire recruitment process. From the very beginning, their team demonstrated professionalism, clear communication, and genuine care. What stood out most was the consistent follow-up—they kept me informed at every step, making the process feel smooth and well-organized. I always felt supported and valued as a candidate. I’m incredibly happy to share that I’ve been offered a new role, and I couldn’t be more grateful to the 1840&Co team for making it all possible.
Reviews verified by DesignRush and sourced from the agency's profile
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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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