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
6 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.
We aim to be Asia's largest consumer and business data asset owner and to provide high-impact digital marketing services, serving clients that demand high return-on-investment marketing results.Powered by data, we help businesses implement a successful digital marketing campaign through email marketing, SMS...
Top Services:
Digital Marketing
Email Marketing
SEO
Social Media Marketing
Call Centers
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Location
Petaling Jaya, Malaysia
Number of Employees
Under 49
Minimal Budget
Under $1,000
Wave Evolution Services
Digital Marketing
Email Marketing
SEO
Social Media Marketing
Call Centers
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
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 View All Reviews
24/7 Live Answering, Virtual Receptionist & Call Center Solutions
AnswerFirst helps businesses stay connected with real, helpful people answering every call day or night. No bots. No scripts. Just trained Customer Service Professionals who know how to support your customers when it matters most...
Top Services:
Phone Answering Services
Call Centers
Customer Support
Location
Tampa, Florida
Number of Employees
100 - 249
Minimal Budget
Under $1,000
AnswerFirst Communications Services
Phone Answering Services
Call Centers
Customer Support
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
AAMCO
ABM
AFC Urgent Care
AFLAC
Bauer Food, LLC (Operates McDonald's)
Berkshire Hathaway
Brookhaven National Lab
Coldwell Banker
Century 21
Cushman and Wakefield
Data sourced from the agency's DesignRush profile
AnswerFirst Communications Reviews & Testimonials
Johnson Legal PLLC Review from Google
1.0★
Johnson Legal PLLC's Review Sourced from Google
As a small law office, we used AnswerFirst for about a year. We opted not to have calls recorded as their system has an irritating "beep" that sounds in the background while customers are on the phone. We thought things were going well. Several months later we signed up for CallRail, which recorded all incoming calls. We began to see a pattern of poorly handled calls. When we shared this information with management, and offered to provide the recording, they said "no thanks." The probems continued. For instance one caller asked if we did simple Wills. The AnswerFirst agent said, "No, we only do Estate Planning." After sharing these simple issues with management nothing changed. We asked if they could give us an adjustment to our bill based on the poorly handled responses. They said "No." We notified them this week we were switching carriers and they acted like they could care less. DO NOT use them as they cannot handle the simplest of calls.
Demetri Karoutsos Review from Google
5.0★
Demetri Karoutsos's Review Sourced from Google
Outstanding After-Hours Answering Service – Highly Recommend for Service-Based BusinessesWe've transitioned to AnswerFirst about four months ago for our after-hours answering service needs, and they’ve exceeded every expectation. Their live agent support, combined with responsive customer service and advanced technology integration, has provided our team with a seamless and professional solution that far surpasses our previous provider.What sets AnswerFirst apart is their adaptability to our unique workflows, quick response times, and overall attention to detail. As a service business, having a reliable, U.S.-based call center is essential and AnswerFirst delivers with consistency and clarity.Their platform gives us the functionality we need, and the quality of their after-hours call handling has significantly improved both our internal efficiency and our customer experience.If you're a service-based company looking for high-quality live agents, professional support, and a partner who understands urgency and accountability, I highly recommend AnswerFirst. Exceptional value, exceptional team.Demetri KaroutsosDirector, CareMaster
Scott Lady Review from Google
5.0★
Scott Lady's Review Sourced from Google
Finally, and I mean FINALLY an inbound call center who does what they say they will do, and does it excellently.Danielle and Robert have been incredible helping me with my campaigns, and ensuring everything is flowing smoothly.I highly recommend giving them a shot for your call inbound call needs.
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
Alegta empowers creative agencies and individuals to showcase their work and connect with clients, offering the best digital marketing and IT solutions backed by 18 years of industry experience...
Top Services:
Branding
Digital Strategy
Web Design
WordPress Website Design
SEO
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Location
Hyderabad, India
Number of Employees
Under 49
Average Hourly Rate
$10/hr
Minimal Budget
Under $1,000
Portfolios Count
7 Projects Listed
Alegta Services
Branding
Digital Strategy
Web Design
WordPress Website Design
SEO
Digital Marketing
Social Media Marketing
Call Centers
Customer Support
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Sammy's Dreamland
Hootone Remedies
CureHBV
Sammy's Luxury Furniture
UpYard
Highercaps
Fayda
Bsts
TaqGen
Al Baik
Data sourced from the agency's DesignRush profile
Alegta Reviews & Testimonials
Cure HBV Review from Google
5.0★
Cure HBV's Review Sourced from Google
Social Media Marketing became 100x profitable to us after collaborating with Alegta! I want to thank their team for Fast Support and Creating Awareness about our Medical Supplements.
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
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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
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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