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.
IdeasUnlimited offers 24/7/365 inbound and outbound call center services, covering customer support, technical support, sales, and multilingual operations. Founded in 2010, the agency delivers offshore and remote support for global businesses across eCommerce, healthcare, real estate, and finance...
Top Services:
- Call Centers
- Phone Answering Services
- IT Services
- BPO
- Customer Support
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- Location
- Sugar Land, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $10/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
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
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- Location
- Dhaka, Bangladesh
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 6 Projects Listed
Upstream BPO Leads The Industry. With Multilingual And Omnichannel Support And Customer Experience (CX), Back-Office, Inside sales, tele sales, Lead generation, Digital Transformation, And Intelligent Automation Solutions. Our BPO Experts Have Over 25 Years Of Experience In Delivering Value And Better...
Top Services:
- Call Centers
- BPO
- HR Outsourcing
- Customer Support
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- Location
- Kuala Lumpur, Malaysia
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $8/hr
- Minimal Budget
- $1,000 - $10,000
Olymp BPO is a specialized outsourcing partner that delivers high-performance web development and comprehensive customer support solutions...
Top Services:
- Web Development
- Mobile App Development
- BPO
- Phone Answering Services
- AI Development
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- Location
- Pristina, Kosovo
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $10/hr
- Minimal Budget
- $1,000 - $10,000
Pixalrity is a B2B client acquisition agency that builds done-for-you outbound systems for companies that need a predictable pipeline. We run LinkedIn outreach, cold email, and cold calling campaigns targeting the right decision-makers at the right time. Our work is hands-on and results-driven. We've...
Top Services:
- Digital Services
- Digital Marketing
- CRM Consulting
- Digital Strategy
- Business Consulting
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- Location
- Chicago, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $15/hr
- Minimal Budget
- $1,000 - $10,000
At Customer Umbrella, we pride ourselves on delivering professional, secure, and multilingual customer support services to our clients. With round-the-clock availability, 365 days a year, we ensure that our clients receive exceptional assistance at affordable rates...
Top Services:
- Call Centers
- BPO
- HR Outsourcing
- Phone Answering Services
- Translation Services
- Show more
- Location
- Varna, Bulgaria
- Number of Employees
- 500 - 999
- Minimal Budget
- $1,000 - $10,000
Lytup is a Paris-based marketing agency driving brand growth through digital marketing, lead generation, and experiential campaigns. We help B2B and B2C companies attract qualified audiences, convert prospects, and create memorable brand experiences with a 360° approach built for measurable impact...
Top Services:
- Event Marketing
- Digital Marketing
- Call Centers
- SEO
- PPC
- Show more
- Location
- Paris, France
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
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Everything you need to know before hiring a telemarketing company
How can a B2B telemarketing agency help my business?
B2B telemarketing agencies are commonly sought to maximize cold outreach and deliver qualified leads.
Gartner found that 73% of B2B buyers actively avoid suppliers that send irrelevant outreach, so a professional telemarketing agency can help you avoid wasting interactions and damaging first impressions.
Capacity is another reason to outsource.
Notably, 47% of sales reps say their team lacks the bandwidth to do cold outreach, and a specialized agency can fill that gap.
A telemarketing company also brings trained callers, tested scripts, call quality control, and regular follow-up, allowing you to speed up your sales cycle without stretching your internal team.
Some B2B sales can take months to close, often because leads lose interest before your team can follow up.
In that regard, a specialized agency can deliver the consistency to keep prospects engaged, follow up at the right intervals, answer objections, and keep your brand top of mind.
Can a telemarketing company help me reach decision-makers faster?
Yes, telemarketing companies can help you reach decision-makers faster as they dedicate a team that will fully focus on outreach.
Research shows that phone outreach still works best at senior level.
As 57% of C-level and VP-level buyers prefer the phone to discuss deals, a telemarketing agency has a better chance of getting in touch with leadership than an email-only approach.
Considering it takes an average of 8 interactions to schedule a meeting, agencies can extend the capacity to keep that cadence going without leads going cold between attempts.
How do telemarketing agencies maximize campaign performance?
Telemarketing companies do script revisions and strategy adjustments to optimize campaign performance.
They review call recordings, conversion metrics, and agent feedback to identify what’s working and what needs improvement.
Based on these insights, telemarketing firms update scripts, refine targeting, and adjust follow-up workflows to improve outcomes.
Most agencies revisit strategy on a monthly basis to make sure the campaign resonates with customer responses and market conditions.
How can I find a telemarketing agency on DesignRush that fits my budget?
We compiled a list of telemarketing companies across different price points to help you find a specialist that’s within your budget limitations.
| High budget: $50,000+ |
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| Low budget: $25,000 to $50,000 |
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Beyond budget, our directory allows you to filter agencies by hourly rate, service type, location, reviews, team size, and more.
What questions should I ask these specialists during the interview?
You should ask some of the following questions to make sure the candidate is a good fit for the project:
Relevant Background
- Have you worked with companies operating in a similar sector to ours? What results did you achieve?
- Can you share recent examples of successful campaigns?
- How experienced are your callers in speaking with senior decision-makers?
- What kind of training and onboarding do your agents go through before working on a campaign?
Services and Processes
- How do you create and refine call scripts for different campaigns?
- Can you walk me through your lead qualification process?
- How frequently do you do follow-ups and multi-touch outreach sequences?
- How do you monitor call quality and maintain consistency across agents?
- What metrics do you track to measure campaign performance?
Related to Your Project
- How often will we receive reporting and performance updates?
- How would you approach our specific ideal customer profile?
- How quickly can we start the campaign?
- What results should we realistically expect in the first 30 days?
- What challenges do you anticipate with our project?
- What level of involvement will you need from our team during the campaign?
Sources
DesignRush sustains a directory of over 40,000 agencies categorized by service category, location, expertise, and reviews. We build our database in two ways:
- Our dedicated team of agency experts actively searches the web for top-performing companies. We then pull information from their websites, online presence, and client testimonials to verify their status and qualifications prior to listing.
- The agencies listed get notified of their profiles on the website and they can choose to claim it or not, which suggests their availability for more collaborations.
Agencies can also reach out to DesignRush and must go through the verification process prior to being listed.
Why companies trust DesignRush
Every agency is independently vetted before it can be listed or ranked
4.8
4.8Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.
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.