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.
Phone answering solutions that businesses are proud of!
Nexa emerges as a trailblazing 24/7 virtual phone answering service renowned for its nationwide operations across the United States. Our forte lies in delivering unparalleled customer experiences through technology-driven call answering solutions, orchestrated by our adept virtual receptionists who possess...
Top Services:
- Phone Answering Services
- Call Centers
- Location
- Phoenix, Arizona
- Number of Employees
- 100 - 249
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsNexa Services
Data sourced from the agency's DesignRush profileFuze SearchKings Penguin Air Paradigm
Nexa Reviews & Testimonials

Phone Answering Services Review from Summer Forbes
Rikard and his team have been great to work with. They are on top of details and have a great system. We’re excited to implement and utilize Nexa!

Phone Answering Services Review from Mandy
I’ve relied on Nexa as my primary answering service for customer calls, and they’ve been outstanding. Their after-hours and midday telephone answering services ensure no call goes unanswered, providing incredible convenience and ease of use. The team’s effective communication and excellent virtual receptionist service have consistently impressed me and made a real difference in managing customer interactions.
Jessica Michalak's Review Sourced from Google
Was recommended Nexa for an after-hours answering service and things seemed fine until they weren’t. One of my colleagues noticed we hadn’t received a call summary in a while, and we eventually found out they hadn’t taken a single call in over TWO months. When I called to ask why calls weren’t being forwarded, and why we were never notified, I was told they “have too many customers to keep an eye on each one.” Despite this, we were billed every month, even though they didn’t answer one call. I was told a supervisor would follow up. No one ever did. Our IT team confirmed multiple times that it wasn't an issue on our end but that was what Nexa claimed it to be. After sending two additional emails with no response, I finally emailed to cancel. Only then did I hear back, receiving a cancellation form and a generic “sorry to see you go.” Don’t waste your time. This is not a legitimate answering service if customer support is essentially nonexistent.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Vserve Ebusiness Solutions
VerifiedVerified by the DesignRush team for authenticity and credibility.All-In-One E-commerce Technology Solution Provider: Because Every Click Matters.
Vserve Ebusiness Solutions is an AI-powered Supply Chain Management and Ecommerce company with 10+ years of global delivery. We provide offshore teams, BPO, procurement, order and inventory management, customer support, and ecommerce solutions to reduce costs and improve efficiency...
Top Services:
- Logistics
- Accounting
- eCommerce Development
- BPO
- Call Centers
- Show more
- Location
- New York City, New York
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $25/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsVserve Ebusiness Solutions Services
Data sourced from the agency's DesignRush profileTraci Miller Marcia Maples Joseph Powell
Vserve Ebusiness Solutions Reviews & Testimonials
Customer Support Review from Marie M. Harris
Although we have been struggling before, after expanding our influence into mountain wear and watches, it became evident that we needed some professional help. We were offering many new products, and making matters worse, we were present in different foreign markets, which mean many competitors to keep an eye on. After some consultations with the Vserve team, we had no doubts that they were the solution we had been looking for. Thanks to their proven MAP enforcement strategies, maintaining our market position is now easier. We always have accurate pricing information at our fingerprints. I must say, we are really impressed with Vserve.
Customer Support Review from Danielle W
Our company is grateful to have found a collaborative team in Vserve for our Product Information Management. Initially, we were unsure about the quality of product descriptions and their accessibility to our buyers. However, Vserve’s expertise in programming language and business best practices helped us to manage our complete product information and catalog pretty well. The conversion rate excelled our expectations, and our products shot up on Google rankings!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsSupporting International trade
Reexia is a UK-based B2B lead generation and telemarketing agency helping companies connect with decision-makers and generate qualified business opportunities. Through targeted outreach, data-driven campaigns, and a combination of telemarketing and email marketing, Reexia supports organisations look...
Top Services:
- Call Centers
- Email Marketing
- Direct Marketing
- SEO
- BPO
- Show more
- Location
- Birmingham, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsReexia Limited Services
Data sourced from the agency's DesignRush profileAerospace IT Telecomunication Retail Manufacturing
Reexia Limited Reviews & Testimonials

Appointment Setting Review from Oli Hughes
We worked with Reexia for appointment setting and outbound sales. They handled the targeting and calling for us and booked meetings directly with businesses that fitted what we were looking for. The team were easy to deal with, responsive and kept us updated throughout the campaign. We were happy with the results and would use them again.

Lead Generation Review from James Nolan
We worked with Reexia to support our outbound business development and lead generation efforts. The team helped us structure a targeted outreach campaign and build a relevant prospect database for our market.Communication throughout the project was clear and organised. We had bi-weekly calls to review activity and results, and Kevin was very hands-on in guiding the campaign and suggesting adjustments where needed.Results took some time to appear, but this was explained clearly at the start of the campaign and expectations were set appropriately. Once the campaign gained momentum, we began having conversations with companies that matched our target profile.Overall, it was a positive experience and we appreciated their structured approach to outbound prospecting.
Giles Strong's Review Sourced from Google
Reexia has been a game-changer for our business. Their expert guidance in implementing CRM tools streamlined our entire sales process, making it more efficient and effective. On top of that, their SEO advice helped boost our online visibility significantly. Professional, insightful, and a pleasure to work with—highly recommended
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsBack 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
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsOutsource2india Services
Data sourced from the agency's DesignRush profileAlcon ARI Maximus Rogers Redwood E-Learning System Yale School of Management Data Infinity Loomis Auto MiddleEast Camnet
Go Digital With Us.
We aim to be Asia's largest consumer and business data asset owner and to provide high-impact digital marketing services, serving clients that demand high return-on-investment marketing results.Powered by data, we help businesses implement a successful digital marketing campaign through email marketing, SMS...
Top Services:
- Digital Marketing
- Email Marketing
- SEO
- Social Media Marketing
- Call Centers
- Show more
- Location
- Petaling Jaya, Malaysia
- Number of Employees
- Under 49
- Minimal Budget
- Under $1,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsWave Evolution Services
Data sourced from the agency's DesignRush profileSiemens Hong Leong Bank Clarins Himalaya Avon Readers' Digest Audi Sirim Ministry of Social and Family Development Metrojaya
The World's Top Talent for Remote Teams!
1840 & Company is a global provider of talent and team solutions devoted to empowering businesses with scalable, on-demand workforce solutions. With a stringent verification procedure and a network of professionals in 150 countries, we connect organizations with remote talent of the highest caliber. Our...
Top Services:
- BPO
- Staff Augmentation
- HR Outsourcing
- Customer Support
- Call Centers
- Show more
- Location
- Overland Park, Kansas
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $10/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts1840 & Company Services
Data sourced from the agency's DesignRush profileGroupon Isango Instacart HomeLight LearnZillion
1840 & Company Reviews & Testimonials
Princess's Review Sourced from Google
I wanted to take a moment to share my experience going through the hiring process here, because it genuinely blew me away. We’ve all been through frustrating interview cycles, but this was the exact opposite. From day one, the entire process was incredibly smooth and stress-free.What really made an impression on me was how professional, kind, and down-to-earth the team was. During my interviews, it didn't feel like a rigid interrogation; instead, it felt like a great, two-way conversation. They genuinely cared about my career goals and took the time to answer all of my questions.Communication was amazing, too. I was never left hanging or wondering what the next steps were, which I appreciated so much. Walking away from the process, I just felt valued as a person, not just a resume. I am so excited to be joining such a thoughtful and professional team!
Kassayndra Meyer's Review Sourced from Google
Highly professional and incredibly responsive throughout the entire recruiting process! They made everything seamless, kept me well-informed at every step, and truly care about finding the right fit. I highly recommend them.
Jaylord Briones's Review Sourced from Google
I had a great experience with 1840 & Company throughout the recruitment and onboarding process. The team was professional, responsive, and transparent at every stage. Communication was clear, and they kept me informed regarding the next steps and requirements. I especially appreciated the support and guidance provided by the recruiters, which made the process smooth and stress-free. Their professionalism and efficiency left a very positive impression, and I am excited to begin my journey with the company. I highly recommend 1840 & Company to professionals seeking remote and global career opportunities.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsThe 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
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsVirtual Fellows Services
Data sourced from the agency's DesignRush profilebelong ProLeadsNYC NEF
Virtual Fellows Reviews & Testimonials
Phoenix Offline's Review Sourced from Google
This is not an organization. They have stolen my money. I don't want anyone like me to be cheated by them. I request no one to take any service from them.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsSales Enablement Partner.
Denave is a B2B sales enablement organization based in Malaysia that offers a complete range of demand generation and lead generation solutions. Denave offers services including Business process outsourcing, digital marketing and B2B data services...
Top Services:
- Digital Marketing
- Event Marketing
- Call Centers
- Customer Support
- Email Marketing
- Show more
- Location
- Kuala Lumpur, Malaysia
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $50/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDenave Services
Data sourced from the agency's DesignRush profileLenovo Saint Gobain Marg
Denave Reviews & Testimonials
Rutteren Morgan's Review Sourced from Google
I recently attended an interview with Denave for a Talent Acquisition role, and it was a disappointing experience. The interviewer Shalini (Global HR) demonstrated a lack of professionalism throughout the session.I felt I was not given a fair chance to express myself, as the interviewer appeared more interested in steering the conversation to her preferences. Additionally, I was surprised by her comments about my career transitions, especially since her profile suggests similar patterns.The session was further marred by poor etiquette, such as answering phone calls during the interview. As someone with extensive experience in recruitment, I expected a higher standard of professionalism from a company like Denave. This experience has raised concerns about their commitment to a candidate-focused hiring process.
Vy Ro Cam's Review Sourced from Google
It's has been 8 months now since I joined the company, such a great team ever. Co-workers are friendly, Team leaders are very supportive and thoughtful. HR team, IT team always response immediately when ever have an issue. :)
NGUYEN TRAM's Review Sourced from Google
October 2021 will mark my 6th anniversary of my employment at Denave.Something that I have experienced in Denave is the encouragement for growths.I have moved up over 6 years in Denave. When I joined Denave I didn’t see myself as a manager, and now I manage multiple people. And I was only able to do that through the support from my team and the encouragement of my managers .It has been a great journey to me and I am proud to be a part of Denave family.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTop 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
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDGC BPO Service Services
Data sourced from the agency's DesignRush profileBrightPath Solutions TechWave Inc EcoSmart Ventures MarketPulse Strategies VisionLink Enterprises FutureEdge Technologies
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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.








