Elevate customer experience and streamline operations with vetted call center companies. Browse our curated list of call centers based in the US to find teams aligned with your customers' cultural and language needs.
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.
Do More Than Business Development and Beyond
DMT Business Development runs cold calling, appointment setting, and multichannel lead generation campaigns for B2B companies across 30 countries. The Ottawa-based agency has delivered 2M+ leads and 10,000+ appointments over 7 years, with clients averaging a 2-5% prospect-to-appointment conversion rate...
Top Services:
- BPO
- Email Marketing
- Call Centers
- Digital Marketing
- Content Marketing
- Show more
- Location
- Ottawa, Canada
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 14 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDMT Business Development Services
Data sourced from the agency's DesignRush profileBiovision Diagnostics Kandji Productive VOLA YouTeam CDS Global Cloud Derm For Primary Care Hubilo Concordia University Yodeck
DMT Business Development Reviews & Testimonials

Lead Generation Review from Yana Okushko
Partnering with DMT Business Development turned out to be a real game-changer for us. Their team didnt just deliver leads they brought in the right conversations that actually converted. Within a short time, they secured 25 qualified meetings that had a direct impact on our pipeline and revenue. What stood out most was their professionalism - clear communication, full ownership of the process, and the feeling that they were part of our internal team rather than an external vendor. Their proactive mindset and attention to detail made every stage of the collaboration smooth and effective.

Email Marketing Review from David Morneau
We've found tremendous success in our projects with DMT Business Development, particularly in the area of Email Marketing. Their team consistently overdelivered not only in the quality of email content but also in driving measurable engagement and conversions through expertly crafted campaigns. What truly sets DMT Business Development apart is their exceptional combination of expert content creation, data driven strategy, and a deep understanding of audience behavior. Their email marketing solutions are strategically designed, results driven, and consistently outperform the competition. The team's expertise and dedication are evident in every campaign. They bring a high level of professionalism, creativity, and responsiveness, ensuring each email resonates with the target audience while meeting our marketing goals. We greatly value our partnership with DMT Business Development and look forward to achieving even greater success together. Highly recommended for businesses seeking impactful and focused email marketing solutions.

Social Media Marketing Review from Vaysh Kewada
Thanks to the dedicated efforts of DMT Business Development, our brand has experienced a noticeable increase in online visibility, consistent social media activity, and significantly improved engagement across platforms. Their strategic approach, community building tactics, and thorough performance analysis have all contributed to measurable success. What truly sets DMT apart is their ability to stay ahead of the ever changing landscape of Social Media Marketing. Their team demonstrates a deep understanding of evolving trends, algorithm updates, and best practices ensuring that our online presence remains optimized for both visibility and conversion. Beyond campaign execution, their expertise in keyword research and analysis has also brought substantial improvements to our websites search engine rankings, bridging the gap between social media activity and SEO performance. Equally impressive is DMTs commitment to transparency, proactive communication, and customer service. They consistently deliver outstanding results while remaining highly responsive to our goals and feedback. Their professionalism and alignment with our brand voice and identity are particularly noteworthy. DMT Business Development's passion for achieving remarkable outcomes and their dedication to staying at the forefront of the industry makes them an invaluable partner in Social Media Marketing. We are truly impressed by their impact and look forward to continued collaboration.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe Book the Meetings, You Close the Deal.
Appointment Setter Online delivers outsourced appointment setting and lead generation through dedicated SDRs assigned by client fit, covering outbound prospecting, inbound qualification, telemarketing, and customer support. To date, the call center provider reports 75,000+ verified sales bookings...
Top Services:
- BPO
- Social Media Marketing
- Email Marketing
- Call Centers
- Show more
- Location
- Albany, New York
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $5/hr
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAppointment Setter Online Services
Data sourced from the agency's DesignRush profileTrainual Inc 15Five electrIQ marketing YCharts PERQ GMass Heinz Marketing Inc Arch-Con Corporation
Appointment Setter Online Reviews & Testimonials

Customer Support Review from Eli Hamilton
This company has delivered exceptional customer support services that made a noticeable impact on our overall workflow and customer satisfaction. From day one, their team demonstrated professionalism, responsiveness, and a genuine commitment to representing our brand with care. They handled customer inquiries promptly, clearly, and with an impressive level of empathyensuring that every interaction felt personalized and attentive.One of the things we appreciated most was their ability to quickly understand our products, processes, and communication tone. They not only answered questions efficiently but also helped educate our customers, resolve issues with patience, and maintain a positive experience even in challenging situations. Their follow-up processes were consistent, their communication was always organized, and their ability to manage high volumes of inquiries without compromising quality truly stood out.They became a seamless extension of our internal team, reducing our workload and allowing us to focus on growth while knowing our customers were in excellent hands. Their dedication, reliability, and customer-first approach made the entire partnership incredibly valuable. We highly recommend their customer support services for any business looking to elevate its service experience.

Back Office Outsourcing Review from Romain Devisme
We hired Assistant Setter Online for:contracted customer support solutionshrinking customer querie volumeBeing an agency involved in the business of advertising and marketing we were ramping up our efforts in terms of campaigningAssistant Setter Online does all our inbound processing, phone, chat and e mail support. They started employment with us on test basis initially and during their 2- week onboarding process they did so with our front-line team which was structured. We gave them tours of our products, tone of voice, brand guidelines and escalation workflows. All the traffic entering their channel is currently managed by their team, all the outbound communication is done via RingCentral and they also integrated Tawk.to live chat support on our site, increasing the level of engagement and conversion. After working with Appointment Setter Online, we now have quantitative indicator of results in customer satisfaction levels. They always provide a high level of support and it has saved us a considerable amount of overhead costs in the process of hiring, training and retaining in-house personnel. We would in fact expect savings of 50 percent or more. They have been extremely reactive and structured.

Appointment Setting Review from Raul Vizcaino
I am the Operations Manager at Supermarket Source Inc, We empower our customers to excel by providing top-notch equipment and design services to the food retail industry. We needed help with B2B appointment setting and sales closing to increase our revenue and sales, Appointment Setter Online provides B2B appointment-setting services. We provide our company's data, and the team helps us with email, chat, and phone calls. We pay $1,000 for each agent, Appointment Setter Online has increased our sales by 22% so far. The quality of their work exceeds our expectations, Appointment Setter Onlines project manager always contacts us through WhatsApp, Slack, and email. We use High Level to arrange the leads and Google Sheets to maintain records and updates of the sales and leads, Were satisfied with the quality of the team, and they've actually increased our sales.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTrusted Advisors, VARs, Managed IT & Technology Broker Services.
Internet Nerdz stands as a premier technology services and consulting firm, dedicated to crafting innovative solutions tailored to meet the intricate demands of your digital transformation journey. With a steadfast commitment to excellence, we specialize in developing cutting-edge strategies and solutions...
Top Services:
- IT Services
- Managed Services
- Cloud Consulting
- Cybersecurity
- IT Compliance Solution
- Show more
- Location
- Pensacola, Florida
- Number of Employees
- Under 49
- Average Hourly Rate
- $200/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 accountsInternet Nerdz Services
Data sourced from the agency's DesignRush profileClearspan Communications Cynergy HiTech Innisfree Hotels Tandy Leather Higgenbotham Insurance Agency Northland Development Prominence Hospitality Fora Financial Entouch Controls Nexxiot Inc.
Internet Nerdz Reviews & Testimonials

IT Services Review from Scott Berg
If you're looking for a company to handle your IT and telephony needs then Scott and his team at Internet Nerdz is who you should be working with. They have my highest recommendation!
Shaun Green's Review Sourced from Google
Internet Nerdz has been a game-changer for my business. Their team is responsive, knowledgeable, and genuinely committed to helping their clients succeed. They made everything simple and stress-free, from setup to ongoing support. Highly recommend for anyone looking for reliable and expert service!
Angelica Cervantes's Review Sourced from Google
In an increasingly digital world, partnering with Internet Nerdz Inc is a strategic move towards achieving your business goals. With their unparalleled expertise, dedication to excellence, and commitment to customer satisfaction, they are truly the gateway to digital success. Whether you're a startup, a small business, or a multinational corporation, Internet Nerdz Inc has the tools and the talent to propel your brand to new heights.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsLeave I.T to us!
AM Tech is a Canadian Managed IT Service Provider founded in 2012, delivering secure, innovative, and proactive technology solutions. We specialize in Managed IT, cybersecurity, cloud, and automation services, combining big-business expertise with small-business care to drive client success...
Top Services:
- IT Services
- Cybersecurity
- Managed Services
- IT Compliance Solution
- Cloud Consulting
- Show more
- Location
- Calgary, Canada
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- Under $1,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsGAM Tech Services
Data sourced from the agency's DesignRush profileEagle Copters Goldenacre Hull Services
GAM Tech Reviews & Testimonials
Michelle Miskey's Review Sourced from Google
We receive and continue to receive amazing customer service from GAM Tech as our IT services provider. Their support is 24-7 which is imperative for our business function. The team is great to deal with, very quick, responsive, attentive and efficient. We especially appreciate Sean our client success manager and the attention he gives our company. Actually the whole team is great to deal with, very professional and helpful! Highly recommend!
Александр Кузьма's Review Sourced from Google
Extremely disappointed with this service center. My questions were completely ignored, and the staff showed no effort to understand the actual issue. It felt like they were more interested in making excuses than helping a customer. The lack of professionalism and basic competence is astonishing. I would strongly advise anyone to think twice before bringing their device here.
Azim K's Review Sourced from Google
We had a great experience working with GAM Tech during our office location move. They helped us resolve all the hassles smoothly and professionally, and were always available whenever we needed support.Special shout-out to Kruno and Chris — both were extremely helpful, responsive, and made sure everything was handled without disruption. Highly recommend their services for any IT needs!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsLeading Teleradiology Providers In Europe
Our goal is to make our company as human as creative, inventive, caring, purpose driven as the wonderful human beings who work inside it...
Top Services:
- Call Centers
- Phone Answering Services
- Location
- Sydney, Australia
- Number of Employees
- 250 - 499
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTelemedicine Clinic Services
Data sourced from the agency's DesignRush profileHardware & Networking Industry Wellness & Fitness Industry Health Care Industry
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5 Frequently Asked Questions About Call Center Providers
What services do call centers provide?
Call centers provide comprehensive services to support customer experiences and business operations. They generally fall under 5 categories:
- Inbound call center services: Handling incoming customer inquiries and needs, including customer support, technical troubleshooting, order tracking and returns, account updates, and billing inquiries.
- Outbound call center services: Conducting customer outreach activities, such as sales calls, lead generation, customer surveys, feedback collection, and appointment setting.
- Omnichannel call center services: Managing customer interactions across multiple channels, including phone, SMS messaging, social media, live chat, and email.
- Automated call center services: Using interactive voice response (IVR), chatbots, knowledge bases, and AI-based tools to resolve routine requests and support agents.
- Virtual call center services: Providing the above services through remote or geographically distributed teams using cloud contact center platforms (CCaaS), VOIP, and workforce management tools.
Additionally, there are also specialized call centers that provide industry-specific services, such as insurance verification for healthcare and medical institutions, KYC checks for financial services, and citizen surveys for government agencies.
What is the difference between multichannel, omnichannel, and optichannel support?
Multichannel aims to reach customers through multiple channels (e.g., voice, chat, email, and social), but channels operate independently with limited shared context, which can create inconsistent customer experiences.
Omnichannel seeks to provide a consistent and continuous customer experience through all touchpoints by having a unified database and integrated system for conversation history and customer data. As a result, omnichannel strategies are often costly and require large teams to cover all customer channels.
Optichannel focuses on prioritizing and routing customers to the most effective communication channel for specific inquiries, optimizing costs rather than maximizing presence. This strategy often selects the highest customer touchpoints by analyzing customer behavior, preferences, and market trends.
How do these companies use AI?
Call center companies are using AI to improve contact center agent efficiency, service quality, and customer experience through the following:
- AI-driven self-service (e.g., conversational IVRs, chatbots, and virtual assistants) to handle end-to-end conversations and routine issues with minimal human involvement.
- AI agents assist live customer service representatives with real-time suggestions, knowledge-based answers, and automated wrap-up notes.
- Performance monitoring using speech-text analytics to evaluate agent-client interactions, flag issues, and recommend coaching actions.
- Predictive analytics to anticipate high contact volumes, staffing needs, and customer drivers (e.g., repeat contacts and churn risk).
- Intelligent call routing that uses intent detection and customer context to route inquiries to the right department or expert.
How to decide between outsourcing call centers vs. in-house call centers?
The answer depends on your support complexity, demand volatility, compliance needs, desired control, and internal team capabilities. Below is a cost-benefit analysis to help you:
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When to choose offshore, onshore, or nearshore providers?
Onshore call centers operate within the same country as your business, enabling better time-zone overlap, cultural alignment, and ease of management through site visits and tighter governance. However, they often have higher costs and, in some markets, it is harder to hire at scale.
Choose onshore call center companies if you want higher control, strong brand alignment, and close collaboration with internal teams.
Nearshore call center companies are located near your country or region, making them more cost-effective than onshore and easier to collaborate with than offshore. While time zone and cultural alignment are not guaranteed, many providers build teams around your processes, language needs, and operating hours.
Choose nearshore if you want to balance cost, collaboration, and operational control.
Offshore call center providers are based in distant countries and are often selected for cost efficiency, scale, and 24/7 coverage. However, cultural and linguistic barriers, time zone compatibility, and limited quality control can be issues.
Choose offshore call center companies if you need scalable coverage, multilingual capacity, and can operate effectively with structured governance, documented workflows, and strong QA.




