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.
DMT Business Development runs cold calling, appointment setting, and multichannel lead generation campaigns for B2B companies across 30 countries. The Ottawa-based agency has delivered 2M+ leads and 10,000+ appointments over 7 years, with clients averaging a 2-5% prospect-to-appointment conversion rate...
Top Services:
BPO
Email Marketing
Call Centers
Digital Marketing
Content Marketing
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Location
Ottawa, Canada
Number of Employees
50 - 99
Average Hourly Rate
$25/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
14 Projects Listed
DMT Business Development Services
BPO
Email Marketing
Call Centers
Digital Marketing
Content Marketing
Market Research
Business Consulting
Direct Marketing
CRM Consulting
Social Media Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Biovision Diagnostics
Kandji
Productive
VOLA
YouTeam
CDS Global Cloud
Derm For Primary Care
Hubilo
Concordia University
Yodeck
Data sourced from the agency's DesignRush profile
DMT Business Development Reviews & Testimonials
Yana Okushko Growth Manager at DreamX
5.0★
Lead Generation Review from Yana Okushko
Partnering with DMT Business Development turned out to be a real game-changer for us. Their team didnt just deliver leads they brought in the right conversations that actually converted. Within a short time, they secured 25 qualified meetings that had a direct impact on our pipeline and revenue. What stood out most was their professionalism - clear communication, full ownership of the process, and the feeling that they were part of our internal team rather than an external vendor. Their proactive mindset and attention to detail made every stage of the collaboration smooth and effective.
David Morneau Co-founder and CEO at inBeat Agency
5.0★
Email Marketing Review from David Morneau
We've found tremendous success in our projects with DMT Business Development, particularly in the area of Email Marketing. Their team consistently overdelivered not only in the quality of email content but also in driving measurable engagement and conversions through expertly crafted campaigns. What truly sets DMT Business Development apart is their exceptional combination of expert content creation, data driven strategy, and a deep understanding of audience behavior. Their email marketing solutions are strategically designed, results driven, and consistently outperform the competition. The team's expertise and dedication are evident in every campaign. They bring a high level of professionalism, creativity, and responsiveness, ensuring each email resonates with the target audience while meeting our marketing goals. We greatly value our partnership with DMT Business Development and look forward to achieving even greater success together. Highly recommended for businesses seeking impactful and focused email marketing solutions.
Vaysh Kewada CEO and Co-Founder at Salience Labs
5.0★
Social Media Marketing Review from Vaysh Kewada
Thanks to the dedicated efforts of DMT Business Development, our brand has experienced a noticeable increase in online visibility, consistent social media activity, and significantly improved engagement across platforms. Their strategic approach, community building tactics, and thorough performance analysis have all contributed to measurable success. What truly sets DMT apart is their ability to stay ahead of the ever changing landscape of Social Media Marketing. Their team demonstrates a deep understanding of evolving trends, algorithm updates, and best practices ensuring that our online presence remains optimized for both visibility and conversion. Beyond campaign execution, their expertise in keyword research and analysis has also brought substantial improvements to our websites search engine rankings, bridging the gap between social media activity and SEO performance. Equally impressive is DMTs commitment to transparency, proactive communication, and customer service. They consistently deliver outstanding results while remaining highly responsive to our goals and feedback. Their professionalism and alignment with our brand voice and identity are particularly noteworthy. DMT Business Development's passion for achieving remarkable outcomes and their dedication to staying at the forefront of the industry makes them an invaluable partner in Social Media Marketing. We are truly impressed by their impact and look forward to continued collaboration.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Blue Valley Marketing runs inbound and outbound call center operations covering lead generation, B2B telemarketing, customer service, omnichannel support, market research, customer win-back, live chat, and order processing. It operates with bilingual support from offices in Kansas and California...
Top Services:
Call Centers
Customer Support
BPO
Phone Answering Services
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Location
Home, Kansas
Number of Employees
250 - 499
Blue Valley Marketing Services
Call Centers
Customer Support
BPO
Phone Answering Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
IBM
Cisco
Microsoft
Red Hat
NVIDIA
AWS
Salesforce
Verizon
Endeavor
Data sourced from the agency's DesignRush profile
Blue Valley Marketing Reviews & Testimonials
Kendra Brassfield Chief Executive Officer at NeoLife International
5.0★
Call Centers Review from Kendra Brassfield
Blue Valley Marketing has been a game-changer for our health and fitness company. Their call center services are top-notch. They've helped us connect with our clients seamlessly, providing exceptional support. Our overall experience with them has been nothing short of fantastic
Anne Marie Lukin Franchise Owner at Planet Fitness
5.0★
Call Centers Review from Anne Marie Lukin
They provided exceptional customer support that went beyond mere service. Their dedication is unrivaled, from handling inquiries about fitness programs to ensuring client satisfaction. Blue Valley Marketing delivered flawlessly on the project, which required not only efficiency but also a genuine understanding of our brand ethos. Their personalized approach, which is evident in every call, demonstrates their dedication to our wellness mission. We highly recommend their services for the ideal combination of professionalism and a personal touch.
Rhonda Mercaldo Owner/Operator at Jimmy John's
5.0★
Call Centers Review from Rhonda Mercaldo
From the very beginning, their team demonstrated professionalism and dedication. They were always just a call away, ready to assist with customer inquiries, reservations, and feedback. The level of service was outstanding, with their agents showcasing an in-depth knowledge of our menu and our restaurant's unique selling points. They truly felt like an extension of our team. Blue Valley's performance was consistently impressive, ensuring no call went unanswered, and every customer felt valued. Their proactive approach in resolving issues and providing insightful suggestions for improving our customer experience was invaluable. The level of care and attention they gave to our patrons was evident in the positive feedback we received. In summary, my overall experience with Blue Valley was top-notch. They played a crucial role in enhancing our customer service and contributed to the success of our restaurant. I highly recommend their services to any business in need of a reliable and customer-focused inbound call center.
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
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 View All Reviews
Global collaboration and expansion does not need to be complicated. At Elite Precision Consulting, we help organizations enter and penetrate global markets with both ease, strategy and peace of mind. With nearly 2 decades of international business management experience, we place value on creating synergistic...
Top Services:
Business Consulting
BPO
Reputation Management
Customer Support
Market Research
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Location
Seattle, Washington
Number of Employees
250 - 499
Average Hourly Rate
$125/hr
Elite Precision Consulting Services
Business Consulting
BPO
Reputation Management
Customer Support
Market Research
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Ardour Healthcare Services
Cognizant
Zealous Services
Parkland Hospitals
American Association of Individual Investors
PMaxGlobal
Norwood
Cusp
CHW-St. Joseph's Medical Center
ESM Solutions Login
Data sourced from the agency's DesignRush profile
Elite Precision Consulting Reviews & Testimonials
Loly Emad Review from Google
1.0★
Loly Emad's Review Sourced from Google
I had a very disappointing experience with this service. Despite paying a very high fee, the feedback I received was minimal and lacked any meaningful engagement. Instead of addressing the concerns I brought up, the response simply repeated what I had already submitted, with no justification or helpful input. I expected personalized guidance, especially given the cost, but unfortunately, the service did not meet even basic expectations. I would not recommend this to other students seeking real academic or research support.
Kayla Steltenkamp Review from Google
1.0★
Kayla Steltenkamp's Review Sourced from Google
Please listen to me...do NOT even try. Their company is run by a bot until you might FINALLY get an answer. For someone who you want to help you write or edit, this isn't it. They should have more personalization from the start. In my intial email I wrote back that I was turned off by the "bot" answer. Then they followed up and I went back and forth with "Aaron" that his information about my area of research was wrong, that I wished he was more personal, and that if he couldn't reply with a genunie response I'd share out. Sure enough every reply was a blanket response from "Aaron" letting me know I could call their company for more information. There are great companies out there who are REAL from the START. Keep looking! Do not give your money to a company who can't even try to engage and didn't train their bot to filter when they needed a person to take over.
Marc Collazo Review from Google
1.0★
Marc Collazo's Review Sourced from Google
Yelp Review for Precision Consulting – Journal Article Publication Services⭐☆☆☆☆ (1/5)I had high hopes for Precision Consulting’s journal article publication services after receiving exceptional support with my dissertation. Unfortunately, my experience with their journal article assistance was frustrating and unproductive.From the start, the process was riddled with errors, unclear guidance, and lack of meaningful feedback. Communication was poor—email responses were difficult to interpret and provided no real direction for navigating the publishing process. When I sought clarification, the answers were vague and did not help me engage with potential publishers.In the end, I was left without a finished product or follow-up support, which was a stark contrast to the quality service I previously received from this company. Given the investment scholars make in their research, Precision should offer clearer guidance, structured support, and a process that truly helps authors reach publication standards.If you’re considering their services for journal article development, proceed with caution. While they may excel in dissertation assistance, they fell short in delivering on their promises for academic publishing support.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Direct Objective Consulting specializes in B2B marketing for small and medium-sized enterprises. With a focus on lead generation and commercialization, the agency serves technology, manufacturing, and service providers. Its mission is to maximize clients' marketing ROI through customized strategies that drive...
Top Services:
Digital Marketing
Digital Strategy
Public Relations
Reputation Management
Video Production
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Location
Montreal, Canada
Number of Employees
Under 49
Direct Objective Consulting Services
Digital Marketing
Digital Strategy
Public Relations
Reputation Management
Video Production
Big Data Analytics
AEO
Content Marketing
Advertising
Call Centers
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
TIBCO
intellera
CanadaVisa
Hardent
explorance
Data sourced from the agency's DesignRush profile
Direct Objective Consulting Reviews & Testimonials
Orly Argaman Review from Google
5.0★
Orly Argaman's Review Sourced from Google
We have worked with Gil for our product strategy, web site creation, market research and some other marketing/strategy aspects. It was an absolute pleasure: Gil is very knowledgeable and creative, communications are clear & concise, delivery always on time and quality of the work was outstanding. I won't hesitate using Gil's services in the future.
Angie Velarde Review from Google
5.0★
Angie Velarde's Review Sourced from Google
Direct Objective offers experienced marketing and strategic consultants. Gil along with his team can take a brief and immerse themselves in the business and be a real part of it. His team can turn a concept into reality and come up with practical strategies and concepts to take to market. Gil is also a great business partner and can be trusted to bounce off ideas in a respected and considered way. I recommend Direct Objective Consulting to anyone needing an experienced strategic marketing and business partner to enthusiastically drive growth and get results.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
CallTel is a business process outsourcing, telephone answering service, and customer engagement company that works together. We provide cutting-edge digital solutions that enable and maximize the effectiveness of individuals, groups, and companies using technology...
Top Services:
Call Centers
Phone Answering Services
Customer Support
BPO
Show more
Location
Lagos, Nigeria
Number of Employees
500 - 999
Average Hourly Rate
$25/hr
CallTel Communications Limited Services
Call Centers
Phone Answering Services
Customer Support
BPO
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Partnering with CallTel helps you to keep focus on the big things while they help you take care of the little important things that matter to your business.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Contact Center Source has been the most preferred partner of customer service, technical support, Back Office, and global services with 12+ languages capability for companies across North America, Australia, and EMEA region...
Top Services:
Phone Answering Services
Call Centers
Customer Support
BPO
Market Research
Show more
Location
Cairo, Egypt
Number of Employees
250 - 499
Minimal Budget
$1,000 - $10,000
Contact Center Source Services
Phone Answering Services
Call Centers
Customer Support
BPO
Market Research
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
A Giant Global Ecommerce Brand
Google Premier Channel Partner
Mortgage Bank Lender
USA Nationwide Debt Consolidation
Data sourced from the agency's DesignRush profile
Contact Center Source Reviews & Testimonials
Basil Salah Review from Google
5.0★
Basil Salah's Review Sourced from Google
Working at Contact Center Source has been a truly motivating and enjoyable experience. The workplace is full of energy, enthusiasm, and a fun atmosphere that makes every day engaging. Colleagues are always approachable, supportive, and willing to help, which creates an environment of teamwork and collaboration.I would especially like to thank Derrick Miller for his tremendous efforts and dedication. He has always gone above and beyond to make work smoother and more successful. More than just a manager, he has been like an older brother, offering guidance, understanding, and genuine support.I’m grateful to be part of such a positive and encouraging environment
Mohamed Shazly Review from Google
5.0★
Mohamed Shazly's Review Sourced from Google
This company is absolutely amazing! They are professional, organized, and always deliver on what they promise. Communication is clear and friendly, and they make the whole process simple and smooth. It’s rare to find a team that works with such honesty and dedication. I highly recommend them to anyone looking for reliable and trustworthy service
Habiba Essam Review from Google
1.0★
Habiba Essam's Review Sourced from Google
I had a very disappointing experience with this agency. The level of unprofessionalism, especially from the manager [O****], was unacceptable. Poor communication, lack of organization, and an overall dismissive attitude made working with them frustrating. I would not recommend working with them
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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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