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.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
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
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
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
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
Callbox Australia is a B2B lead generation and appointment setting company helping ANZ tech and enterprise firms scale sales pipeline. Combining dedicated ANZ SDR teams with AI-driven multi-channel outreach, Callbox reaches key decision-makers across Australia, New Zealand, and APAC...
Top Services:
- Digital Marketing
- Call Centers
- Event Marketing
- Location
- Camperdown, Australia
- Number of Employees
- 500 - 999
- Portfolios Count
- 1 Project Listed
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
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
KamelBPO helps businesses build dedicated offshore teams in the Philippines. Based in Clark and Canadian-owned, we recruit full-time staff for travel sales, customer service, education, technical support and back-office operations. Clients direct their teams while we handle recruitment and local HR, payroll...
Top Services:
- BPO
- Call Centers
- Customer Support
- HR Outsourcing
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- Location
- Angeles, Philippines
- Number of Employees
- 100 - 249
Cloudesk Offshore Staffing is an Australian-registered offshore staffing company with back-office operations in Bangladesh. We specialise in virtual assistants, customer support, administration, software development, web development, digital marketing, SEO, UI/UX design, and accounting. Our recruitment...
Top Services:
- WordPress Website Design
- Digital Marketing
- SEO
- PPC
- Content Marketing
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- Location
- Melbourne, Australia
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
Mirrorline Marketing is a marketing agency and sales coaching company. We create, build and scale businesses in any industry, worldwide, combining strategy, branding, websites, ads and SEO with real sales training...
Top Services:
- Logo Design
- Digital Strategy
- Branding
- eCommerce Development
- WordPress Website Design
- Show more
- Location
- Sheridan, Wyoming
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
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
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
- Show more
- Location
- Plantation, Florida
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $12/hr
- Minimal Budget
- $1,000 - $10,000
Orvex Group is a trusted BPO and digital solutions company delivering Telemarketing, Customer Support, Sales, Lead Generation, SEO, Web Development and Digital Marketing. We help businesses connect better, sell smarter and grow faster through professional people, modern solutions and performance driven...
Top Services:
- Call Centers
- BPO
- Direct Marketing
- SEO
- Digital Marketing
- Show more
- Location
- Lahore, Pakistan
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
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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.













