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.

Telemarketing × Design × Sort by: Top Rated ×Clear Filters
  • Your Partner in AI-Enabled Development, Marketing, eCommerce, Data Management, BI and Ops.

    Tech2Globe provides inbound and outbound call center services as part of its BPO-KPO division, covering customer support, telemarketing, lead generation, virtual assistance, and call center monitoring. With 14+ years of operation and 12,000+ completed projects, it holds a 4.9 rating on DesignRush...

    Top Services:

    • Digital Marketing
    • Web Development
    • eCommerce Development
    • Web Design
    • Social Media Marketing
    • Show more
    Location
    New York City, New York
    Number of Employees
    250 - 499
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    16 Projects Listed
  • America's best phone answering service taking care of your callers

    Moneypenny is a call center provider that staffs 24/7 answering services and contact center outsourcing for businesses across legal, healthcare, real estate, finance, and home services, with bilingual receptionists, appointment scheduling, call dispatch, and CRM integration included...

    Top Services:

    • Call Centers
    • Phone Answering Services
    • Customer Support
    Location
    Duluth, Georgia
    Number of Employees
    1000 & Up
    Minimal Budget
    Under $1,000
    Portfolios Count
    4 Projects Listed
  • Since 1993. Transform Business Digitally. IT Managed Service Provider. IT Infrastructure Builder.

    Over 30 years of experience in the IT Solutions and IT Support, Win-Pro is an institutional powerhouse delivering unparalleled standards to organizations across Singapore, Johor Bahru, and Kuala Lumpur. Our Outsourced IT Managed Services Company is leading the way with IT services for business...

    Top Services:

    • IT Services
    • Customer Support
    • Managed Services
    • Cybersecurity
    • Cloud Consulting
    • Show more
    Location
    Singapore, Singapore
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed
  • Redefining Customer Experience

    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
    • Show more
    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
  • BPO Company India | Call Center Outsourcing | Ascent BPO

    Ascent BPO Services focuses on delivering quality call center outsourcing and customer care services. Our dedication to client satisfaction ensures high‑quality results in data entry, conversion, and support...

    Top Services:

    • BPO
    • Call Centers
    • Business Consulting
    • HR Outsourcing
    • Customer Support
    • Show more
    Location
    Noida, India
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    3 Projects Listed
  • Back Office Support Services

    Outsource2india is a pioneering outsourcing company, providing a variety of Back Office Support services for global organizations...

    Top Services:

    • BPO
    • Business Consulting
    Location
    Princeton, New Jersey
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000
  • GTM Systems that scale

    Zaphyre is an Execution Service Partner helping B2B companies scale through content marketing, outbound sales, lead generation, and virtual staffing. We embed execution teams that turn strategy into measurable growth...

    Top Services:

    • BPO
    • Email Marketing
    • Digital Marketing
    • Market Research
    • Content Marketing
    • Show more
    Location
    Fairfax, Virginia
    Number of Employees
    100 - 249
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed
  • Diving Into Technology

    Riseup Labs is a global AI-first technology company delivering software, BPO, and CX solutions that help enterprises innovate faster, scale smarter, and grow sustainably. From Bangladesh to the world, we design and build reliable solutions and agentic workflows that drive real outcomes...

    Top Services:

    • Mobile App Development
    • Web Development
    • eCommerce Development
    • Software Development
    • Staff Augmentation
    • Show more
    Location
    Dhaka, Bangladesh
    Number of Employees
    250 - 499
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    6 Projects Listed
  • IT Support Services for Alabama Businesses

    Your business depends on your IT systems. Were confident that we are the only network services, computer support, or IT consulting business in Alabama that provides these benefits to your business...

    Top Services:

    • IT Services
    • Cybersecurity
    • Managed Services
    • Web Design
    • Business Consulting
    • Show more
    Location
    Birmingham, Alabama
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Portfolios Count
    1 Project Listed
  • Digital Solutions to Help Your Business Grow

    We are a technology solutions company creating better solutions for our clients from all around the world. Our work with industries spanning across sectors like mobility, supply chain, software, web development, innovation and automation, artificial intelligence, you name it and we might have a solution for...

    Top Services:

    • IT Services
    • Mobile App Development
    • Software Development
    • Web Design
    • Web Development
    • Show more
    Location
    Harrisburg, Pennsylvania
    Number of Employees
    Under 49
    Average Hourly Rate
    $85/hr
  • The Right Team With A Big Dream

    We specialize in managed and dedicated team staffing for small and large outsourced projects. Combined with a highly trained and educated staff, our company exists to make a deliverable outsourced product managed with Western-style business practices, and delivered with exceeded expectations. Our products are...

    Top Services:

    • Digital Services
    • Digital Strategy
    • Digital Marketing
    • eCommerce
    • Email Marketing
    • Show more
    Location
    Dhaka, Bangladesh
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
  • "Your Trusted Service Partner, Across the Nation."

    ASK 2 PRO delivers expert virtual assistant services nationwide, helping businesses streamline tasks, boost efficiency, and expand their network. From admin to communication, we handle the details so you can focus on growth and success...

    Top Services:

    • Web Development
    • Digital Marketing
    • AI Development
    • HR Outsourcing
    • Customer Support
    • Show more
    Location
    New York City, New York
    Number of Employees
    50 - 99
    Average Hourly Rate
    $7/hr
  • Top BPO Company USA.

    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
    • Show more
    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
  • Most trusted Technology Partner

    Mysoft Heaven (BD) Ltd. is a Top Software Development Company & CMMI Level 3 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
    • Show more
    Location
    Mirpur, Bangladesh
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    1 Project Listed

Why companies trust DesignRush

Every agency is independently vetted before it can be listed or ranked

1

Identity Check

We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
131,309+
2

Portfolio Review

We review agency work, case studies, and results to confirm skill.

Applicants rejected
48%
3

Ongoing Audit

We monitor listings regularly; outdated agencies are removed.

Agencies verified
14

Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.

See how rankings and monetization work.

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.