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.
AcquireOne
VerifiedVerified by the DesignRush team for authenticity and credibility.Modular B2B Sales Execution
AcquireOne helps international B2B companies successfully enter and grow in the German speaking market through strategic sales outsourcing. We combine market entry strategy, outbound prospecting, cold calling, email outreach and LinkedIn campaigns to generate qualified sales opportunities without the need to...
Top Services:
- Call Centers
- Email Marketing
- Direct Marketing
- Location
- Berlin, Germany
- Number of Employees
- Under 49
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAcquireOne Services
Data sourced from the agency's DesignRush profileJotform Synaos Everspring ComControl Payt ANG Tribe
AcquireOne Reviews & Testimonials
Appointment Setting Review from Katharina Müller
With AcquireOne, we've finally built a functioning system for our lead generation. Appointments are reliably scheduled and kept with a current show rate of 98%. I can recommend the company for B2B appointment setting.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsSDR Teams, Lead Generation & Call Center Services for B2B Companies
Munzai Solutions provides B2B call center services covering cold calling, inbound call management, and customer support, with each engagement staffed by dedicated SDRs working 40 hours per week. The call center company's packages include a US-based dialer, project manager, and weekly reporting...
Top Services:
- Customer Support
- Business Consulting
- Call Centers
- Email Marketing
- CRM Consulting
- Show more
- Location
- Manchester, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 12 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMunzai Solutions Services
Data sourced from the agency's DesignRush profileSouqh Maxyfi Konch Skriber
Munzai Solutions Reviews & Testimonials
Appointment Setting Review from Troy Porter
Our experience with Munzai was very positive. Zain was exceptional to work with. His communication was excellent, and anytime I had a question, concern, or request, he was quick to respond and willing to jump in and help. Adil also worked extremely hard on our account. He was persistent, consistent, and clearly put a tremendous amount of effort into trying to create opportunities for us. Ultimately, we did not get the level of results we had hoped for from the campaign. I believe part of that was because our service can be a difficult one to explain through outbound prospecting. Many potential customers are not already aware that a service like ours exists, so there is a significant amount of education involved before someone understands the value. What I can say confidently is that Munzai worked hard to try to make the relationship successful. They listened to our concerns, made adjustments, stayed engaged, and genuinely tried to help us succeed. I appreciated the effort, responsiveness, and integrity they demonstrated throughout the process.
Outbound Review from Davey Warren 🍐
Munzai Solutions has been a great partner for our outbound outreach. What stood out most was their communication. They checked in with us daily and weekly, kept us updated every step of the way, and worked closely with us to identify our target clients and the best directions to pursue. That level of consistent communication made the whole engagement feel efficient and collaborative, and it is a big reason we felt we got the best bang for our buck. We enjoyed working with them and would recommend them to other companies looking for a communicative, responsive outbound partner.
Appointment Setting Review from Sam Bartow Moreno
Munzai Solutions are amazing to work with. They got started immediately and booked multiple meetings in the first few days. I’m very happy with the results and the support they offered us. If you’d like to ask any questions about the service feel free to contact me at +1 458 600 8797I’m very satisfied. And would highly recommend them.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsYour On-Demand Sales Team
Martal Group runs outsourced B2B cold calling, appointment setting, lead generation, and SDR programs for companies across SaaS, fintech, cybersecurity, healthcare, and manufacturing, powered by 200+ onshore sales executives and proprietary AI outreach...
Top Services:
- Email Marketing
- Digital Marketing
- Social Media Marketing
- BPO
- Digital Strategy
- Show more
- Location
- Toronto, Canada
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMartal Group Services
Data sourced from the agency's DesignRush profileClickworker.com Incentives-Solutions.com Semasio.com Kipod.com Favendo.com Weezmo.com Intech-Global.com NemoNano.com Indoorgo.com Vidmind.com
Martal Group Reviews & Testimonials
Marketing Review from Nidhi Jaiswal
From the very start, their team was very professional, communicated in a timely manner, and was very familiar with B2B lead generation. We were just surprised at their team culture and their desire to work hand-in-hand with our team. It felt like they were not an external vendor but a true partner in all respects.Throughout our working time together, Martal always produced excellent work while keeping us informed and engaged. They are solution-oriented, proactive, and willing to share ideas that enhance performance. It is not often that you find a team that is so concerned about your success.What we value most is their honesty and commitment to building something that will last. They don't seek quick wins but work to build outcomes that last and can potentially expand. With their experience combined with a well-structured plan, they are a reliable and outcome-driven collaborator.If you need to reach more customers and you would like to have a company that is concerned about your success, you can rely on Martal Group. We highly recommend that you use their services.
Digital Marketing Review from Anas Aftab
Working with Martal Group has been an absolute pleasure. Their team is collaborative and transparent and consistently delivers on their commitments with professionalism and expertise. From the start, it was clear they are passionate about building meaningful and lasting business relationships.What stands out most is their willingness to go above and beyond. Whether its sharing valuable insights, offering timely support, or simply being approachable and helpful, Martal Group has proven to be a reliable partner. Their depth of knowledge in the B2B space, paired with a genuine dedication to helping businesses grow, makes them a standout organization.If you're looking for a team that values collaboration, transparency, and long-term success, Martal Group is an excellent choice.
Call Centers Review from Doug McLean
Martal Group was able to facilitate Complete EDI’s first ever outbound lead generation efforts in the company’s history. Following the onboarding process, Martal was able to deliver 2 sales-qualified leads within the second week of campaigns and by the end of the 3 month pilot period had 14 sales-qualified leads.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsEnd-to-end CX solutions that delight customers.
Helpware CX is a call center company that runs inbound and outbound call centers across 19+ locations in 11 countries, supporting 45+ languages. The agency posts 90% CSAT and holds 30+ industry awards including the IAOP Global Outsourcing 100 and a Gold Stevie Award. Clients average a 5-year partnership...
Top Services:
- Customer Support
- BPO
- Call Centers
- Phone Answering Services
- Business Consulting
- Show more
- Location
- Lexington, Kentucky
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 17 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsHelpware Services
Data sourced from the agency's DesignRush profileDoorDash PureCars Headspace Microsoft Google CompIQ Samsara Jam City RestoraPet HealthComp
Helpware Reviews & Testimonials
Customer Support Review from Maria Maidana
Helpware has been a trusted partner for SquadLocker for several years now for customer success. Our Customer Onboarding Team continues to shine through every administrator that interacts via our Live Chat channel for store help. Anzhelika is my Onboarding Lead and we work hand in hand in making any and all decisions for team enhancements. She delights both DIY and Enterprise administrators across multiple channels here at SquadLocker. I would not be as successful without Anzhelika by my side. I forsee using Helpware for years to come!
Web Design Review from Brian Agee
My organization contracted with Helpware for a complete website design and build. I am extremely happy with the finished product and continually receive positive feedback from customers, vendors, and employees. The Helpware team was very professional throughout the entire process and did an incredible job keeping the project on time and on budget. Communication was also great and I really appreciated their consultative approach. I would recommend without hesitation.
Virtual Assistant Review from Brian Lubeck
Over the past five years, I've had the privilege of partnering with Helpware, and my experience has been nothing short of exceptional. Their commitment to efficiency and cost-effectiveness has consistently impressed me. Whether you're a startup or an established enterprise, Helpware offers tailored virtual assistant solutions that work well with any company. I highly recommend them to anyone looking to hire a virtual assistant.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsAble Customer Success Managers Ready to Work
Trained specialists for delivering positive customer experience allowing you to remain on top of your customers' minds. Outsourced customer support, technical reporting, and back office virtual assistants trained solely to provide upper edge to your overall business...
Top Services:
- Call Centers
- Digital Marketing
- Customer Support
- Location
- Los Angeles, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $9/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSupportonic_CX Services
Data sourced from the agency's DesignRush profileJanitorial Leads Pro All City Duct Cleaning HVAC Leads Pro MCA Leads Pro Cleaning Leads Pro Solar Leads Hub
Smarter Tech Real People Better Outcomes
ATM Group is a customer operations and revenue outsourcing company. We deliver contact centre outsourcing, revenue generation programmes, multilingual support and AI-enabled optimisation in the UK, Europe and South Africa...
Top Services:
- BPO
- Call Centers
- Phone Answering Services
- HR Outsourcing
- Customer Support
- Show more
- Location
- Leicester, United Kingdom
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsATM Group Services
Data sourced from the agency's DesignRush profileBoots Opticians Vodafone Ziggo Old Mutual
ATM Group Reviews & Testimonials
Lale K's Review Sourced from Google
I worked here for 3 months and my experience was (contrary to the reviews below) very nice, easy going. The management accommodated my personal circumstances and provided ease into adapting to the role, support was always available as well as humour and banter from colleagues. Perfect transition job from hospitality to office roles. Bonus points for progressing employees internally to higher roles accordingly.
An Ash's Review Sourced from Google
How did managers help with a transfer of service for a customer who left review.Because at managements rule is to never disclose that they are calling from at management,they are only to represent and use their clients name. What’s even funnier is this customer was considered special from the rest. They were not only informed it was at management dealing with their service but they even knew the real names of the managers.Another common practice is staff and managers mostly use a dummy name not their real. But in this case even that info was provided to the customer. Must be a special customer that the normal practices were broken for them and they from millions of customers even took the time to write a review lol . Everyone laugh with me.
Tim Lee's Review Sourced from Google
Both Adnan & Connor at AT Management were superb in their dealings with me over the transfer of a service when I was moving house. Nothing was too much trouble & their knowledge was very good. I’d have no hesitation in recommending these two individuals or AT Management
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsIt's Easy to do Business with Us
A proud member of the Equicom Group, a Filipino conglomerate, Equicom Services, Inc. - EquiServe is a trusted business process outsourcing (BPO) provider established in 2011. With over 1,000 employees, EquiServe is headquartered in Makati City, Philippines and we operate across multiple locations, including...
Top Services:
- BPO
- Call Centers
- Customer Support
- IT Services
- CRM Consulting
- Show more
- Location
- Makati, Philippines
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $10/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsEquicom Services, Inc. Services
Data sourced from the agency's DesignRush profileHealth Care Industry Finance Industry Insurance Industry
Book More B2B Appointments, Faster
DemandNexus helps B2B technology companies generate pipeline through appointment setting, ABM campaigns, intent marketing, lead generation, and multi-channel demand generation services...
Top Services:
- Public Relations
- Digital Strategy
- Digital Services
- Advertising
- Email Marketing
- Show more
- Location
- Pune, India
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDemandNexus Services
Data sourced from the agency's DesignRush profileCloudaeon Analytix Solution Spectrum NewFold Idify
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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.