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
2 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.
AnswerConnect offers 24/7 live call answering, inbound call center solutions, live chat, and appointment scheduling for businesses across legal, healthcare, real estate, IT, and franchise sectors. Voted Best Answering Service for 2026, the call center company answers 99% of calls within four rings...
Top Services:
Call Centers
Phone Answering Services
Customer Support
Location
Portland, Oregon
Number of Employees
1000 & Up
Minimal Budget
Under $1,000
AnswerConnect Services
Call Centers
Phone Answering Services
Customer Support
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Mosquito Squad
Stormguard
Crash Hotel
Data sourced from the agency's DesignRush profile
AnswerConnect Reviews & Testimonials
Natalie Russell Owner at Arkansas Healthcare Insurance
5.0★
Phone Answering Services Review from Natalie Russell
Onboarding with AnswerConnect was incredibly easy. I was able to schedule a virtual meeting right away, and within an hour we had everything set upportal access, hours of operation, and customized scripting.Since getting started, Ive received positive feedback from both clients and prospects about the agents handling my calls. That alone speaks volumes.A few weeks in, I decided to tweak my scripting to improve the flow and be more transparent with callers. I reached out via chat, and their team responded immediately. They even offered to call me to walk through the changes, which I appreciated. We updated everything in real time, and the process was seamless.Super friendly team, quick to respond, and very easy to work with. Overall, a very positive experience with AnswerConnect.
Claire Riendeau Real Estate Specialist at Engel & Völkers Charlotte
5.0★
Phone Answering Services Review from Claire Riendeau
Claire Riendeau of Engel & Völkers Charlotte gave a shoutout to Christine Cooksey for the remarkable customer service experience. She addressed all her questions and even provided a detailed account explanation by sharing her screen. Riendeau highly recommended her, noting that she deserved a raise. (Source: 3rd Party Review Platform)
Dr. Harris CEO at Kitty Corner Cat Clinic
5.0★
Phone Answering Services Review from Dr. Harris
Dr. Harris from Kitty Corner Cat Clinic had the best customer service experience with Dyan. She patiently set up Harris' complicated phone system, untangling a messy IT situation. Her methodical and gracious approach was invaluable. The tech support team, especially Dyan, went above and beyond. Harris expressed gratitude for the agency's assistance. (Source: 3rd Party Review Platform)
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
Show more
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
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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