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 04, 2026
DesignRush evaluates all telemarketing firms based on their expertise, success stories, and verified client reviews. Some listings may be paid.
Top Customer Service is an AI-assisted call center and BPO company, combining human agents with AI tools to deliver 24/7 inbound call handling, outbound support, live chat, and virtual assistant services. The agency caters to clients across eCommerce, media, entertainment, and automotive sectors...
Top Services:
Customer Support
Call Centers
BPO
Phone Answering Services
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Location
Albany, New York
Number of Employees
500 - 999
Average Hourly Rate
$10/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
26 Projects Listed
Top Customer Service Services
Customer Support
Call Centers
BPO
Phone Answering Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Trainual Inc
15Five
ElectrIQ Marketing
YCharts
PERQ
GMass
Heinz Marketing Inc
Arch-Con Corporation
Data sourced from the agency's DesignRush profile
Top Customer Service Reviews & Testimonials
Manoj Thenua
Chief Executive Officer at Medico Hub
5.0★
Customer Support Review from Manoj Thenua
I recently engaged a customer support provider to manage client service and support tasks for my healthcare-oriented platform. From the outset, their team was extremely professional, responsive and attentive. Their onboarding process was smooth, prompt, and well-organized. Throughout the project they handled all support tickets including account queries, billing questions, technical issues and general user guidance with empathy and clarity.
What impressed me most was their commitment to quality: they consistently responded quickly to inquiries (often within minutes), maintained a helpful and courteous tone, and followed up until the users problems were fully resolved. Feedback from my users has been overwhelmingly positive: many praised how easy it was to get help and how satisfied they were with the assistance.
Thanks to their efficient support, user satisfaction and retention improved noticeably compared to the period before they handled support. I also experienced fewer escalations and received fewer complaints overall. Their professionalism and consistency gave me peace of mind and freed me to focus on growing the platform rather than handling day-to-day support issues.
Overall, working with them has been a very positive and productive experience the quality of support exceeded my expectations.
Reviews verified by DesignRush and sourced from the agency's profile
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With 3.6 million calls handled and 97.6% answered within three rings, Face For Business providestelephone answering, virtual receptionist, outsourced switchboard, appointment booking, and live chat services to UK businesses across legal, healthcare, construction, accountancy, and retail sectors...
Top Services:
Phone Answering Services
Call Centers
Customer Support
Location
Burscough, United Kingdom
Number of Employees
Under 49
Portfolios Count
5 Projects Listed
Face for Business Services
Phone Answering Services
Call Centers
Customer Support
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Pure West Radio
iLove homes Walsall
Anji Hazell
Lancasters Estate Agents
Actuation Valve
Formby GP
Minshull Windows
AmpEV
PhysioGO
Happy Dog Haven
Data sourced from the agency's DesignRush profile
Face for Business Reviews & Testimonials
Anonymous
CEO at GrowPortfolio Ltd
5.0★
Phone Answering Services Review from Anonymous
Top quality service and customer care, really impressed with Face for Business and I couldn't recommend them any higher!
Nora
Owner at Undisclosed
5.0★
Phone Answering Services Review from Nora
We have been using Face for Business services for a few years for our financial advice company. We can not fault their service, it has proved extremely useful, especially post-Covid in particular when we all moved to working from home rather than being in an office.
Joshie
Founder at Undisclosed
5.0★
Phone Answering Services Review from Joshie
I took over a busy clinic a few months back and on the days there is nobody to answer the phone these guys are ready to step in and intercept the calls ensuring no business is lost. I am very thankful for this great service and I highly recommend Face For Business as a professional and friendly team!
Reviews verified by DesignRush and sourced from the agency's profile
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Voicentric are specialists in scientific marketing for Life and Materials Science companies. We deliver intelligent telemarketing and B2B lead generation that connects you directly with decision-makers worldwide. Our multilingual team excels at engaging scientists with complex technical information, building...
Top Services:
Direct Marketing
Call Centers
Digital Marketing
Advertising
Event Marketing
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Location
Durham, United Kingdom
Number of Employees
50 - 99
Average Hourly Rate
$47/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
5 Projects Listed
Voicentric Services
Direct Marketing
Call Centers
Digital Marketing
Advertising
Event Marketing
Market Research
Phone Answering Services
Customer Support
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Call center firm SwiftCare Billing makes it easy to elevate healthcare operations and streamline claims, coding, and denials management for providers of all sizes. Superior solutions are born from our profound experience in medical billing and revenue cycle optimization...
Top Services:
BPO
HR Outsourcing
Customer Support
Phone Answering Services
Call Centers
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Location
Evesham, New Jersey
Number of Employees
50 - 99
Average Hourly Rate
$20/hr
Portfolios Count
3 Projects Listed
SwiftCare Billing LLC Services
BPO
HR Outsourcing
Customer Support
Phone Answering Services
Call Centers
Accounting
Web Design
Web Development
WordPress Website Design
Transcription Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Health Care Industry
Dental Industry
Insurance Industry
HR Industry
BPO
Outsourcing
Medical Billing
Data sourced from the agency's DesignRush profile
SwiftCare Billing LLC Reviews & Testimonials
Julie Formica
Office Administrator at Redefine Healthcare
5.0★
Medical Billing Review from Julie Formica
We have been partnering with SwiftCare Billing for the past year to manage key administrative operations, including billing, accounts receivable (AR) processing, and file indexing. This collaboration has been instrumental in improving our internal workflows, reducing turnaround times, and enhancing the accuracy of our financial and document management systems.
One of the major strengths of SwiftCare Billing is their responsiveness and client service. From the initial onboarding to ongoing operations, their team has been professional, communicative, and solution-oriented. We receive regular updates and clear performance metrics, which has helped build a high level of trust in their services.
While our overall experience has been highly positive, a few initial challenges related to software integration and adapting to our internal protocols required some time and coordination. However, SwiftCare Billing showed flexibility and commitment in overcoming these hurdles, and weve since seen steady improvements in alignment and efficiency.
Overall, SwiftCare Billing has proven to be a reliable, professional, and valuable partner. Their services in billing, AR, and file indexing have added measurable value to our operations, allowing our in-house team to focus on core business activities. We would not hesitate to recommend their services to other organizations seeking a capable and trustworthy outsourcing provider.
Reviews verified by DesignRush and sourced from the agency's profile
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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 Businesses
We'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 Karoutsos
Director, 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
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Australia-based Provider Of Lead Generation Services
Callbox Australia is a leading global provider of B2B lead generation services, trusted by companies across ANZ and beyond. Since 2004, weve been helping businesses achieve their revenue goals and unlock growth potential. With expertise in lead generation, appointment setting, and data solutions, we have...
Top Services:
Digital Marketing
Call Centers
Event Marketing
Location
Camperdown, Australia
Number of Employees
500 - 999
Callbox Australia Services
Digital Marketing
Call Centers
Event Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Outfund
AdvantageNZ
Allotrac
Acer
Yularatech Pvt Ltd
KUDO
KOR Creative
Telefonica
Data sourced from the agency's DesignRush profile
Callbox Australia Reviews & Testimonials
Hesson Mak
Review from Google
5.0★
Hesson Mak's Review Sourced from Google
Van was a very helpful rep for Callbox - taking me through some of the key considerations of using Callbox and it really helped me to shape my business decision. I would recommend a consult with Van to better understand the direction your team could take and to make a call!
Dirk de Vos
Review from Google
5.0★
Dirk de Vos's Review Sourced from Google
Speaking to Van, his friendly and professional approach to working with us has been outstanding. Van and Jesse have really worked well in getting the key stakeholders together and explain the approach from Callbox. Looking forward to seeing the goals achieved by the Callbox team.
Shikin Osman
Review from Google
5.0★
Shikin Osman's Review Sourced from Google
Van-R was detailed and informative in sharing his product info. He was able to provide insights how Callbox could potentially assist in our upcoming project with their suite of products offering. He is approachable and able to assist with our queries too. Thanks Van :) - Nora, ie IDEAS
Reviews verified by DesignRush and sourced from the agency's profile
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Kimon Services is a UK-based company specializing in cost-effective outsourced business admin solutions, including dedicated customer support, data entry, and back-office staffing. We offer managed offshore teams and Employer of Record (EOR) services tailored to client needs, helping businesses reduce costs...
Top Services:
BPO
Customer Support
Accounting
HR Outsourcing
Phone Answering Services
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Location
London, United Kingdom
Number of Employees
1000 & Up
Average Hourly Rate
$10/hr
Minimal Budget
Under $1,000
Kimon Services Services
BPO
Customer Support
Accounting
HR Outsourcing
Phone Answering Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Global Guardians
GorillaHub
21st Century AV Ltd
n-gage messenger
Meeting Store
PNG CR
Data sourced from the agency's DesignRush profile
Kimon Services Reviews & Testimonials
Martin F
Review from Google
5.0★
Martin F's Review Sourced from Google
Excellent company. Michael works hard to understand your needs and create a customised service around your specific requirements. The VA's have been able to accurately fulfil our scope of work and at an affordable price point.
Reviews verified by DesignRush and sourced from the agency's profile
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Professional Multilingual Communication And Support At Scale
Fluency LLC provides a comprehensive suite of human-led call center services designed to bridge communication gaps and enhance customer experience. Based in Columbus, Ohio, we specialize in high-stakes environments where linguistic precision and cultural empathy are essential...
Top Services:
Call Centers
BPO
Translation Services
Customer Support
Phone Answering Services
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Location
Hilliard, Ohio
Number of Employees
Under 49
Minimal Budget
$1,000 - $10,000
Portfolios Count
2 Projects Listed
Fluency LLC Services
Call Centers
BPO
Translation Services
Customer Support
Phone Answering Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
AsterSense provides tailored CRM solutions, contact centre services, and WhatsApp integrations to enhance business efficiency, customer engagement, and growth...
Top Services:
CRM Consulting
Call Centers
Location
Singapore, Singapore
Number of Employees
Under 49
Average Hourly Rate
$50/hr
Minimal Budget
$1,000 - $10,000
AsterSense Pte. Ltd. Services
CRM Consulting
Call Centers
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Cavinolr Recruiters specializes in connecting top-tier talent with organizations in CS, Retention , sales, life sciences, healthcare, and biotechnology sectors. The firm combines industry expertise with personalized strategies to deliver exceptional recruitment solutions tailored to clients' unique needs...
Top Services:
BPO
Phone Answering Services
Translation Services
Customer Support
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Location
Plantation, Florida
Number of Employees
250 - 499
Average Hourly Rate
$12/hr
Minimal Budget
$1,000 - $10,000
Cavinol Panama Services
BPO
Phone Answering Services
Translation Services
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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