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.
SDR 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 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 ReviewsWe Focus On Customer Service So You Can Focus On Your Business.
Five Star Solutions is a premier, mid-sized contact center outsourcer dedicated to delivering world-class customer care. By blending boutique-level agility with enterprise-grade capabilities, the company serves as a seamless extension of its clients' brands...
Top Services:
- Business Consulting
- Call Centers
- BPO
- Phone Answering Services
- Show more
- Location
- Sioux Falls, South Dakota
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $50,000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsFive Star Solutions Services
Data sourced from the agency's DesignRush profileEmail and Chat Customer Service Outsourcing Inbound and Outbound Voice Outsourcing
From individuals and entrepreneurs, small and medium-sized businesses, right through to large corporations and government bodies, our administrative assistants are helping our clients become more efficient by streamlining their processes...
Top Services:
- Customer Support
- BPO
- Market Research
- Transcription Services
- Translation Services
- Show more
- Location
- Edinburgh, United Kingdom
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $24/hr
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSmartPA Services
Data sourced from the agency's DesignRush profileCox-London Complete Refinish Collette CWMedia Krispy Kreme Total Oil and Gas
SmartPA Reviews & Testimonials
Aries Financial's Review Sourced from Google
Ended cooperation after several months of correcting commission statements for our advisers. Repeated silly errors in simple calculations and our team spent hours to check each commission statement which was frustrating and time consuming. And this all was £40 per hour charge to this company.Cherry on the cake was - hear this - several days delay in providing commission statements for all my team due to national elections in Uganda and internet disruptions there. My people were not paid on time and SmartPA refused to refund charge for the job.Beware!
Vicky Grobbelaar's Review Sourced from Google
Mandy has been a huge asset to Ethiqs and a lovely person to work with, efficient and friendly and a great team backing her. Highly recommended.
Pedro Mendoza's Review Sourced from Google
Holly has been a great help recently both in terms of my business and personal affairs. I am in the process of making some business structure changes in my private dental practice and she has assisted me with all the lengthy paperwork, ensuring that everything is in order. In addition, she has assisted me in researching properties and locations. I would not hesitate in recommending her services as her support has been invaluable to me at this extremely busy time and has allowed me to focus on my patients.Highly recommended +++++
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsDelivering Proven Marketing Results
Direct Objective Consulting specializes in B2B marketing for small and medium-sized enterprises. With a focus on lead generation and commercialization, the agency serves technology, manufacturing, and service providers. Its mission is to maximize clients' marketing ROI through customized strategies that drive...
Top Services:
- Digital Marketing
- Digital Strategy
- Public Relations
- Reputation Management
- Video Production
- Show more
- Location
- Montreal, Canada
- Number of Employees
- Under 49
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDirect Objective Consulting Services
Data sourced from the agency's DesignRush profileTIBCO intellera CanadaVisa Hardent explorance
Direct Objective Consulting Reviews & Testimonials
Orly Argaman's Review Sourced from Google
We have worked with Gil for our product strategy, web site creation, market research and some other marketing/strategy aspects. It was an absolute pleasure: Gil is very knowledgeable and creative, communications are clear & concise, delivery always on time and quality of the work was outstanding. I won't hesitate using Gil's services in the future.
Angie Velarde's Review Sourced from Google
Direct Objective offers experienced marketing and strategic consultants. Gil along with his team can take a brief and immerse themselves in the business and be a real part of it. His team can turn a concept into reality and come up with practical strategies and concepts to take to market. Gil is also a great business partner and can be trusted to bounce off ideas in a respected and considered way. I recommend Direct Objective Consulting to anyone needing an experienced strategic marketing and business partner to enthusiastically drive growth and get results.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsAmerican quality call center and outsoured services at Philippine rates
Loop provides a pinnacle of outsourced customer support as a service, encompassing top-tier customer service, potent retention strategies, and robust sales techniques...
Top Services:
- Customer Support
- Call Centers
- Phone Answering Services
- BPO
- Direct Marketing
- Show more
- Location
- Makati, Philippines
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $8/hr
- Portfolios Count
- 3 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsLoop Contact Solutions Services
Data sourced from the agency's DesignRush profileAgora Business One Blade Medix Select Stock Investor
Loop Contact Solutions Reviews & Testimonials
B B's Review Sourced from Google
Mirdif uptown is the bestI’ve lived there for 2 years and it was amazing and I have met incredible people
Bahia B's Review Sourced from Google
Mirdif uptown is the bestI’ve lived there for 2 years and it was amazing and I have met incredible people
CHRISTINE ALCANTARA's Review Sourced from Google
For me, the first impression would be lasting. And it's crucial how they make me feel, or what I initially feel in order for me to stay with a company. In comparison to the other company, Loop is still in the early stages, yet the upper management was really kind and considerate. And I've had a great time here so far. With the kind of individuals I'll be hanging out with, I'm confident I won't be sorry I chose Loop. :)
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsInflux.com are the experts in on-brand 24/7 customer support, since 2013..
Influx staffs dedicated call center teams for inbound, outbound, and after-hours coverage across the Americas, Europe, and APAC. Since 2013, the call center provider has served 750+ brands on month-to-month plans with no lock-in and a 7-day launch window...
Top Services:
- Customer Support
- Call Centers
- BPO
- HR Outsourcing
- AI Development
- Show more
- Location
- West Hollywood, California
- Number of Employees
- 1000 & Up
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsInflux Services
Data sourced from the agency's DesignRush profileLinktree Meshki Casely BearPaw Asana Rebel Classpass QSIC Autopilot Melinda Maria Yazio
Where Innovation Meets Execution
Ferio Solutions is a Business Process Outsourcing company serving businesses across the USA, Canada, UK, and global markets, providing customer support, offshore teams, lead generation, sales, and back-office solutions...
Top Services:
- Affiliate Marketing
- Direct Marketing
- Business Consulting
- Market Research
- Call Centers
- Show more
- Location
- Rawalpindi, Pakistan
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $20/hr
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsFerio Solutions Services
Data sourced from the agency's DesignRush profileSoftware & IT Services Industry Finance Industry Automotive Industry
Ferio Solutions Reviews & Testimonials
DEVIL MANI's Review Sourced from Google
ALHAMDULILALLAH IT'S A BEST WAY TO GET SUSSECS IN YOUR ALL THE STAFF ARE REALLY FRIENDLY AND BOSS ALSO HAVE VERY DOWN TO EARTH NATURE
Muhammad Adil Majeed Dar's Review Sourced from Google
Environment is better, People are kind.Especially Sami, One of the lovely guys over there. KEEP IT UP MAN
Malik Awahab's Review Sourced from Google
Sch an outstanding experience with Ferio . His CEO is very cooperative and friendly . Easy to work with him . Thanks man
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsAI Automation Services For Real Business Growth
CollabGenerate is a 2024-founded AI automation and appointment setting company helping businesses capture, engage, and convert leads into booked appointments. Our team combines AI systems with trained appointment setters to ensure fast response times, qualified conversations, and consistent lead flow. From...
Top Services:
- Digital Services
- AI Development
- Web Development
- Digital Marketing
- SEO
- Show more
- Location
- Lahore, Pakistan
- Number of Employees
- Under 49
- Average Hourly Rate
- $15/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCollabGenerate Services
Data sourced from the agency's DesignRush profileProcess Travel American Income Life Globe Life
CollabGenerate Reviews & Testimonials
William James's Review Sourced from Google
My name is William, and I run a small B2B company here in Montana. I worked with CollabGenerate LLC for two specific services—WhatsApp automation and AI automation. We were looking for a way to handle inquiries faster and cut down on manual follow-up work, and their solutions actually fit what we needed.The WhatsApp automation has been reliable for customer responses, and the AI workflows they built helped streamline a few internal processes without making things complicated. Communication with their team was straightforward, and everything was delivered on time.Overall, a solid experience for the services we required.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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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:
| Outsource call centers | In-house call centers | |
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| Disadvantages |
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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.







