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Top Call Center Services & Voice Services in Colorado

Ratings Updated: February 3, 2026
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3 Leaders 15 Contenders

63 Companies

Country: United States
State: Colorado

List of the Top Colorado Call Center Companies & Voice Services

  • Featured

    What are Featured Providers?

    SalesRoads Logotype

    SalesRoads

    4.9 65 reviews
    Premier Verified
    $5,000+
    Undisclosed
    50 - 249
    Serves Colorado

    Services provided

    10% Call Center Services
    80% Sales Outsourcing
    10% Email Marketing

    SalesRoads is a leading provider of Contact Center Services, specializing in outbound call center and telemarketing services. The company consistently receives positive feedback, with 100% of reviewers highlighting their efficient project management and results-driven approach. Approximately 86% of clients praise their ability to enhance lead generation and surpass sales goals, demonstrating their commitment to client success and strategic execution.

    See all 65 projects

    Reviews mention Trustworthy

    Clients express a strong sentiment of trustworthiness towards VSA, Inc., highlighting their commitment to achieving sales goals and their proactive approach in learning about client needs. One client noted that VSA, Inc. achieved a 100% close rate and appreciated their responsiveness and dedication. The ability to meet in person and the effective communication through weekly calls further reinforced this trust. Overall, clients feel confident in VSA, Inc.'s capabilities and consider them a valuable asset to their operations.
    • Lead Generation for Nonprofit Corporation
      5.0 Jun 10, 2019

      Their willingness to actually learn about the program is quite impressive. They want to know more than just our sales goal. It’s been helpful for them to understand the background of the CMS program and why exactly a clinician needs to sign up. They’re much more efficient at answering questions now rather than having to escalate the calls to me. I appreciate that they want to know why we do what we do. It takes a lot of stress off of my staff that we can trust VSA, Inc. to do more.

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    28 of 38 Call Center Services reviews are 5 stars
    $50,000 – $199,999 avg. project cost

    Call Center Services PROJECT HIGHLIGHT

    Market Research & Call Center Services for Home Appraisal Co

    4.0 — SalesRoads provides market research and call center services for a home appraisal company. The team helps the client find agents, increase awareness, and do market research surveys for the client's Read more
    Read 38 Reviews

    Average Project Cost Breakdown

    $50,000 to $199,999 (24) $10,000 to $49,000 (17) $200,000 to $999,999 (6) Less than $10,000 (1)

    What Clients Have Said

    Clients consistently highlight SalesRoads' excellent value for money, often noting their cost-effectiveness compared to competitors. For instance, one client stated that they achieved a 100% ROI, while another mentioned substantial revenue growth attributed to SalesRoads' efforts. Many reviews emphasize the company's adaptability and responsiveness, with clients appreciating the quality of leads generated and the overall positive impact on their sales pipelines. Overall, the sentiment is highly favorable regarding the balance between cost and value delivered.
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    United States (61) Canada (2) Austria (1) Spain (1)
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    Hugo Inc. Logotype

    Hugo Inc.

    5.0 28 reviews
    Premier Verified
    $1,000+
    < $25 / hr
    1,000 - 9,999
    Serves Colorado

    Services provided

    20% Call Center Services
    25% Customer Service Outsourcing
    15% Back Office Outsourcing +4 services
    10% Content Moderation Services
    10% Data Annotation Services
    10% Finance & Accounting Outsourcing (FAO)
    10% Sales Outsourcing

    Hugo Inc. | Top CX Provider is a distinguished company specializing in Contact Center Services, offering comprehensive Customer Support Services across various channels such as email, chat, and phone. The client reviews highlight their adaptability and efficiency, with 100% positive feedback on their seamless integration and ability to enhance customer engagement capabilities, resulting in impressive metrics like a 99.8% accuracy in order processing and fulfillment.

    See all 28 projects

    Reviews mention High-quality work

    Clients consistently commend Hugo for delivering high-quality work, noting significant improvements in operational efficiency and accuracy. One client highlighted a 99.8% accuracy in order processing and a 17% revenue increase, attributing these successes to Hugo's meticulous management and adaptability. Another client praised the company's ability to provide near-perfect customer support responses, enhancing their Net Promoter Score. Overall, feedback reflects a strong sentiment of satisfaction with the quality and impact of Hugo's services.
    • Back Office Outsourcing for E-Commerce Co
      5.0 Sep 24, 2024

      Hugo's ability to scale their services to match our growth without compromising quality has been crucial to our success. Their adaptability and robust quality control processes have been crucial in supporting our market expansion and maintaining high compliance standards.

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    • Content Mktg & Call Center Services for Cashback Gaming Co
      5.0 Aug 23, 2023

      Hugo impressed us with meticulous attention to detail, consistently delivering excellent outcomes. Their proactive approach continuously improves workflows for optimal results.

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    • Scaling & QA Services for Media Company
      5.0 Aug 23, 2023

      We can now push out content 3X faster with almost 100% accuracy on all of our content through audio and video. They deliver great work.

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    3 of 3 Call Center Services reviews are 5 stars
    $50,000 – $199,999 avg. project cost

    Call Center Services PROJECT HIGHLIGHT

    Back Office Outsourcing for E-Commerce Co

    5.0 — Hugo provides back-office outsourcing for an e-commerce company. The team has handled the client's back-office tasks, managed communications and relationships with retailers' networks, and vetted Read more
    Read 3 Reviews

    Average Project Cost Breakdown

    $50,000 to $199,999 (7) $200,000 to $999,999 (6) $10,000 to $49,000 (2)

    What Clients Have Said

    Clients consistently commend the company for its exceptional value for money, highlighting that Hugo offers high-quality services at competitive rates. One client noted, 'Good value for cost,' while another emphasized their 'ability to scale services without compromising quality.' Many reviews reflect satisfaction with cost reductions and enhanced operational efficiency, with one client praising an '80% improvement in efficiency' compared to in-house hiring. Overall, the sentiment is overwhelmingly positive, indicating that clients perceive Hugo as a cost-effective partner.
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    United States (9) Kenya (3) France (1) Netherlands (1) United Arab Emirates (1) England (1)
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    Helpware CX Logotype

    Helpware CX

    4.8 46 reviews
    Premier Verified
    $5,000+
    < $25 / hr
    1,000 - 9,999
    Serves Colorado

    Services provided

    20% Call Center Services
    60% Customer Service Outsourcing
    20% Back Office Outsourcing

    Helpware is a specialized provider of customer care services, offering expertise in both inbound and outbound call center operations. The company consistently receives high praise for its ability to customize solutions, leading to seamless integration with clients' needs. Approximately 80% of reviewers highlight Helpware's proactive approach and strong project management skills, while 90% emphasize its cultural and operational alignment with client goals, reflecting an overall positive reception.

    See all 46 projects

    Reviews mention Detail-oriented

    The sentiment regarding Helpware's detail-oriented approach is highly positive. Clients have noted their 'constant coaching and direct communication' that foster a strong partnership. The team's 'attention to detail' has been highlighted as a key factor in improving response and resolution times. One client emphasized that Helpware's agents are 'thoughtful with their time and attentive to our requests,' showcasing their commitment to quality and reliability in customer service.
    • Customer Service Team for Lifestyle Brand
      5.0 Oct 28, 2019

      Helpware's team lead, Charley, has provided constant coaching and direct communication with us to create a strong partnership within our customer service department. Thanks to their internal procedures and overall productivity, incite and attention to detail, Helpware has shown reliability and high-quality work. Each team member is thoughtful with their time and attentive to our requests.

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    17 of 21 Call Center Services reviews are 5 stars
    $200,000 – $999,999 avg. project cost

    Call Center Services PROJECT HIGHLIGHT

    Call Center Services for Digital Government Partner

    5.0 — Helpware provides call center services for a digital government partner. They offer resources to assist the public on phones and email by responding to inbound calls and reviewing applications. Read more
    Read 21 Reviews

    Industry Experience

    Helpware has demonstrated strong capabilities across various industries including Information Technology, Healthcare, Software, eCommerce, Consumer Products, and Financial Services. Clients commend their expertise in providing scalable customer support, technical troubleshooting, and marketing services. The overall sentiment reflects high satisfaction with their responsive communication, adaptability, and the quality of work. Industries like Healthcare and IT Services highlight significant improvements in operational efficiency and customer satisfaction, marking Helpware as a suitable partner for organizations seeking reliable and high-quality outsourcing solutions.

    Read All Reviews

    Select Industry to see insights

    Information technology Arts, entertainment & music Healthcare Software eCommerce Consumer Products Education IT Services Food & Beverages Nonprofit Media Advertising & marketing Business services Financial services Retail Other Industry Automotive

    More responsive than most other service providers

    Helpware CX is very responsive

    They are a great candidate to start a conversation with. Send them a short message or project inquiry.
    Get in Touch
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    Select VoiceCom Logotype

    Select VoiceCom

    4.8 9 reviews
    Premier Verified
    $5,000+
    < $25 / hr
    1,000 - 9,999
    Serves Colorado

    Services provided

    30% Call Center Services
    30% Customer Service Outsourcing
    10% Back Office Outsourcing +3 services
    10% Finance & Accounting Outsourcing (FAO)
    10% IT Staff Augmentation
    10% Sales Outsourcing

    Select VoiceCom is a provider of Contact Center Services, specializing in customer support, telephonic support, and telemarketing services. Reviews indicate a strong cultural fit with clients, highlighted by impressive communication and project management skills. Notably, Select VoiceCom achieved a 35% increase in customer satisfaction and a 25% boost in sales conversions. Positive feedback predominates, with no significant areas for improvement highlighted by clients.

    See all 9 projects

    Average Project Cost Breakdown

    $10,000 to $49,000 (2) $50,000 to $199,999 (2) $1,000,000 to $9,999,999 (2) $200,000 to $999,999 (1)

    What Clients Have Said

    Clients express a strong sentiment regarding Select VoiceCom's cost-effectiveness and value for money, often highlighting it as a key reason for their selection. One client noted it offered 'good value for cost,' and another mentioned the 'high ratings' and 'great culture fit' that justified their investment. Overall, feedback indicates that Select VoiceCom consistently delivers results that exceed expectations, making them a reliable partner for various business needs.
    Read All Reviews

    More responsive than most other service providers

    Select VoiceCom is very responsive

    They are a great candidate to start a conversation with. Send them a short message or project inquiry.
    Get in Touch

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    United States (7) Australia (1)

    Savannah, GA

    4 Cedar Cove
    Savannah, GA 31410

    1

    4783064144

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  • Denver Digital Agency Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Denver, CO

    Services provided

    30% Search Engine Optimization
    20% Pay Per Click
    20% Web Design +3 services
    10% Conversion Optimization
    10% Sales Outsourcing
    10% Web Development

    Denver Digital Agency is a SEO services firm. The small Denver, Colorado-based team focuses on Search Engine Optimization and Pay Per Click. The agency was launched in 2015.

    Read more
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  • Unframed Digital Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Denver, CO

    Services provided

    10% Branding
    10% Content Marketing
    10% Conversion Optimization +7 services
    10% E-Commerce Development
    10% Market Research
    10% Sales Outsourcing
    10% Search Engine Optimization
    10% UX/UI Design
    10% Web Design
    10% Web Development

    Launched in 2020, Unframed Digital is a branding company. The small team provides Branding and Market Research.

    Read more
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  • Featured

    What are Featured Providers?

    HelpSquad Logotype

    HelpSquad

    5.0 11 reviews
    Premier Verified
    $1,000+
    < $25 / hr
    250 - 999
    Serves Colorado

    Services provided

    30% Call Center Services
    40% Back Office Outsourcing
    30% Customer Service Outsourcing

    HelpSquad is a provider of comprehensive Customer Support Services, specializing in Contact Center Services, including inbound and outbound call handling and chat support. Their reviews highlight exceptional communication, timely project management, and customized solutions, with 100% of reviewers noting their responsiveness and technical depth, and 86% emphasizing the company's cost-effectiveness and cultural alignment.

    See all 11 projects

    Reviews mention Easy to work with

    Clients consistently express that HelpSquad is exceptionally easy to work with, demonstrating a willingness to adapt quickly to changing needs. One client noted their impressive responsiveness, stating they are 'very timely and great to work with.' Another highlighted HelpSquad's readiness to implement changes with 'little to no delay.' Overall, the sentiment reflects a strong satisfaction with their collaborative approach and effective communication.
    • Customer Service Outsourcing for Medical Company
      5.0 Aug 1, 2024

      HelpSquad is very timely and great to work with. I highly recommend them. HelpSquad is very easy to work with and always willing to make changes on the fly with little to no delay.

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    • Live Chat Support Services for Consumer Products Company
      5.0 Jul 30, 2024

      The HelpSquad team was very responsive and always willing to work with us on bettering the chat experience. Their responsiveness is impressive.

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    8 of 8 Call Center Services reviews are 5 stars
    2 new reviews for Call Center Services in past 6 months
    $10,000 – $49,000 avg. project cost

    Call Center Services PROJECT HIGHLIGHT

    Call Center Services for Property Management Company

    5.0 — HelpSquad provides customer service outsourcing for a property management company. They provide a team of four agents that handle all communications with guests across multiple booking platforms. Read more
    Read 8 Reviews

    Average Project Cost Breakdown

    Less than $10,000 (3) $10,000 to $49,000 (3) $50,000 to $199,999 (1) $200,000 to $999,999 (1)

    What Clients Have Said

    Clients consistently highlight HelpSquad's affordability and value for money, noting that their pricing fits within budgets while delivering significant results. For instance, one client reported a 33% reduction in labor costs, while another emphasized the excellent service quality at a reasonable price. Overall sentiment reflects satisfaction with the cost-effectiveness of HelpSquad's services, aligning well with client expectations and project outcomes.
    Read All Reviews

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    Hatboro, Pennsylvania (3) New Orleans, Louisiana (1) Rochester, Minnesota (1) San Diego, California (1) Lexington, Kentucky (1) Oak Brook, Illinois (1) Lawrenceville, New Jersey (1) Quakertown, Pennsylvania (1) Souderton, Pennsylvania (1)
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    Business & Services Solutions Logotype

    Business & Services Solutions

    5.0 17 reviews
    Verified
    $1,000+
    < $25 / hr
    50 - 249
    Serves Colorado

    Services provided

    40% Call Center Services
    40% Customer Service Outsourcing
    10% Back Office Outsourcing +1 service
    10% Sales Outsourcing

    Business & Services Solutions is a comprehensive provider of Contact Center Services, specializing in fields such as Customer Support Services and Technical Support. They are consistently praised for their ability to integrate seamlessly with clients' operations and for their proactive, empathetic service approach. With over 90% of feedback highlighting their strategic alignment and technical expertise, they excel in adapting to industry-specific needs, optimizing performance, and enhancing customer satisfaction across diverse sectors.

    See all 17 projects

    Reviews mention Flexible

    The overall sentiment regarding flexibility in Business & Services Solutions is highly positive. Clients noted their remarkable adaptability, particularly in accommodating last-minute program changes and responding promptly to evolving needs. For instance, the team effectively managed complex accessibility requirements during events and swiftly trained on new features, demonstrating their commitment to seamless integration. One client highlighted their structured yet flexible project management approach, which facilitated timely adjustments to scripts based on feedback, solidifying their role as a proactive partner.
    • Back-Office Outsourcing for Sports & Fitness Facility
      5.0 Jun 20, 2025

      Three qualities distinguished BSS: their authentic commitment to inclusion evident in every system design, their remarkable flexibility accommodating last-minute program changes, and their genuine relationship-building with our staff and participants. Their team members frequently volunteered at events to deepen understanding of our community. Early challenges adapting systems for rural partners were met with creative solutions - simplified low-tech tools and additional training sessions - demonstrating BSS's commitment to true partnership and problem-solving.

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    • Call Center Services for AI-Powered Platform
      5.0 Jun 17, 2025

      Their project management was structured but flexible, which was important to us. We had weekly check-ins during the onboarding period, followed by bi-weekly performance reviews. They were extremely responsive to feedback. If a certain script or response needed updating due to a new product release, it was handled almost immediately. What I appreciated most was their willingness to adapt. For example, when we introduced a new AI feature for bulk document classification, their team trained on it within a few days and started handling related queries without skipping a beat.

      Read Full Review
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    9 of 9 Call Center Services reviews are 5 stars
    9 new reviews for Call Center Services in past 6 months
    $10,000 – $49,000 avg. project cost

    Call Center Services PROJECT HIGHLIGHT

    Call Center Services for AI-Powered Platform

    5.0 — Business & Services Solutions provides call center services for an AI-powered platform. The team has taken the time to understand the client's software functionality, customer personas, use Read more
    Read 9 Reviews

    Average Project Cost Breakdown

    $10,000 to $49,000 (11) $50,000 to $199,999 (2)

    What Clients Have Said

    Clients consistently report that Business & Services Solutions offers excellent value for their cost, with many noting that the pricing aligns well with their budgets. Specific feedback highlights a strong cultural fit and the company's commitment to understanding client needs, enhancing the perceived value. For instance, one client appreciated how the services allowed for a significant reduction in unresolved tickets, demonstrating efficiency and effectiveness. Overall, the sentiment towards the company's pricing and value proposition is overwhelmingly positive.
    Read All Reviews

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    Canada (4) Australia (2) France (2) Spain (2) Germany (1) Poland (1) Singapore (1)
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    six eleven global services Logotype

    six eleven global services

    4.8 10 reviews
    Verified
    $1,000+
    < $25 / hr
    1,000 - 9,999
    Serves Colorado

    Services provided

    40% Call Center Services
    30% Back Office Outsourcing
    30% Customer Service Outsourcing

    Six Eleven Global Services is a customer support services provider specializing in call handling and customer service operations. The company has garnered positive feedback, with reviewers highlighting their exceptional responsiveness and alignment with company values. A significant 100% of reviewers commend their swift one-hour response times and the cultural fit, without any noted areas for improvement.

    See all 10 projects

    Reviews mention Timely

    Clients express a highly positive sentiment regarding the timeliness of Six Eleven Global Services. They consistently deliver responses promptly, addressing requests and feedback with diligence. One client noted, 'Six eleven always replies on time,' highlighting their effective communication and commitment to meeting deadlines. The team's ability to maintain project accuracy over 95% further underscores their reliability in timely execution, reinforcing their reputation for professionalism and responsiveness.
    • BPO Services for Logistics & Supply Chain Company
      5.0 Apr 25, 2023

      Six eleven always replies on time. Whatever being requested, whenever being asked, they will give responses. Six eleven reviews all the feedbacks in detail, and always take effective solutions to solve the problem.

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    1 of 1 Call Center Services reviews are 5 stars
    $50,000 – $199,999 avg. project cost

    Call Center Services PROJECT HIGHLIGHT

    Call Center Services for E-Commerce Company

    5.0 — Six eleven global services provides call center services to help an e-commerce company communicate with their customers. The vendor's team asks the end customers about their product experience. Read more
    Read 1 Review

    Average Project Cost Breakdown

    $50,000 to $199,999 (2) $200,000 to $999,999 (2) $1,000,000 to $9,999,999 (1)

    What Clients Have Said

    Clients generally express satisfaction with the cost-effectiveness and value for money provided by Six Eleven Global Services. Feedback highlights that their pricing aligns with client budgets while delivering high-quality services. One client noted, 'Pricing fits our budget; good value for cost,' while another emphasized, 'They provide excellent support' and maintain project accuracy over 95%. Overall, the sentiment reflects that clients perceive Six Eleven as a reliable partner that balances quality and affordability.
    Read All Reviews

    More responsive than most other service providers

    six eleven global services is very responsive

    They are a great candidate to start a conversation with. Send them a short message or project inquiry.
    Get in Touch
    View Profile Visit Website
  • Personable Media Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Denver, CO

    Services provided

    15% Web Design
    15% Web Development
    10% Branding +6 services
    10% Content Marketing
    10% Content Writing Services
    10% Pay Per Click
    10% Sales Outsourcing
    10% Search Engine Optimization
    10% Social Media Marketing

    Launched in 2013, Personable Media is a small Denver, Colorado-based web design agency. Their team specializes in Web Design and Web Development.

    Read more
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  • Digital Mandee Logotype

    Not yet reviewed

    $1,000+
    < $25 / hr
    10 - 49
    Boulder, CO

    Services provided

    10% Branding
    10% Mobile App Development
    10% Sales Outsourcing +10 services
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design
    10% Web Development
    5% Corporate Photography
    5% Custom Software Development
    5% Digital Strategy
    5% Graphic Design
    5% Video Marketing
    5% Video Production

    Branding firm Digital Mandee is located in Boulder, Colorado and Lahore, Pakistan. They focus on Branding and Social Media Marketing.

    Read more
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  • Data Network Group Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Boulder, CO

    Services provided

    25% Call Center Services
    50% IT Managed Services
    25% Cloud Consulting & SI

    IT managed services company Data Network Group is headquartered in Boulder, Colorado. Founded in 1997, the team offers IT managed services and Call Center Services.

    Read more
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  • True Dart Digital Marketing Consulting Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Denver, CO

    Services provided

    20% E-Commerce Development
    20% Pay Per Click
    20% Sales Outsourcing +2 services
    20% Search Engine Optimization
    20% Social Media Marketing

    True Dart Digital Marketing Consulting is a social media marketing company launched in 2013. The firm focuses on Social Media Marketing and Search Engine Optimization.

    Read more
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  • Smash Loud, LLC Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Denver, CO

    Services provided

    20% Affiliate Marketing
    20% Email Marketing
    20% Media Planning & Buying +2 services
    20% Sales Outsourcing
    20% Search Engine Optimization

    Smash Loud, LLC is a small media planning & buying agency headquartered in Denver, Colorado. Their services include Media Planning & Buying and Email Marketing.

    Read more
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  • Featured

    What are Featured Providers?

    Belkins Logotype

    Belkins

    4.9 230 reviews
    Premier Verified
    $10,000+
    < $25 / hr
    50 - 249
    Serves Colorado

    Services provided

    10% Call Center Services
    70% Sales Outsourcing
    10% CRM Consulting and SI +1 service
    10% Email Marketing

    Belkins is a lead generation and outbound marketing company that specializes in creating effective sales campaigns through email, LinkedIn outreach, and cold-calling services. Reviews consistently highlight their ability to generate qualified leads, with 100% of reviewers noting successful appointment bookings and measurable outcomes. Clients praise Belkins' professionalism, timely communication, and high-quality project management, with no significant areas for improvement suggested.

    See all 230 projects

    Reviews mention Great project management

    Clients consistently praised Belkins for their exceptional project management, highlighting their timely delivery and responsiveness. One CMO noted their project management as 'excellent,' with immediate feedback responses and adherence to deadlines. Another client commended their 'clear, organized, and on-time' communication, while a different review emphasized the proactive nature of their project management, ensuring smooth collaboration. Overall, the sentiment reflects a strong appreciation for Belkins' structured approach and flexibility in meeting client needs.
    • Email Marketing & Sales Outsourcing for Consulting Firm
      5.0 Aug 27, 2024

      Their project management was excellent, balancing structure and flexibility. They delivered on time, communicated clearly, and used advanced tools and methods, adapting quickly to our needs.

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    • Market Research & Sales Outsourcing for Design Studio
      5.0 Aug 21, 2024

      Belkins nailed project management. Each stage of the outbound funnel was thoroughly calculated, allowing us to use data-driven insights to make informed decisions and making sure both sides implemented strategies effectively. Communication was clear and proactive, and they maintained full transparency throughout the process.

      Read Full Review
    • Sales Outsourcing for Financial Services Company
      5.0 Jul 23, 2024

      Their project management was superb. They consistently delivered on time and were extremely responsive to our needs, resulting in seamless communication and integration with our team.

      Read Full Review
    • Email Marketing for Software Company
      5.0 Jul 3, 2024

      Belkins' project management was excellent; they always maintained clear communication and adapted quickly to our feedback.

      Read Full Review
    • Lead Generation & Email Mktg for Medical Device Software Co
      4.5 Mar 21, 2024

      Belkins was great at keeping things moving and adjusting their strategy to fit our needs. They were always on time and made sure we were heading in the right direction.

      Read Full Review
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    6 of 7 reviews are 5 stars
    5 new reviews for Call Center Services services
    $10,000 – $49,000 avg. project cost

    Reviewed 7 times in the past 6 months

    Over the past six months, clients have consistently praised Belkins for their effective lead generation and project management. One client noted a significant ROI with 78 appointments and a 3.6x return, while another highlighted 137 qualified demos booked. The team's professionalism, clear communication, and deep understanding of clients' needs were repeatedly mentioned as key strengths. Overall, the sentiment is overwhelmingly positive, with clients expressing satisfaction and no significant areas for improvement identified.
    Read 7 Recent Reviews
    45 of 48 Call Center Services reviews are 5 stars
    5 new reviews for Call Center Services in past 6 months
    $10,000 – $49,000 avg. project cost

    Call Center Services PROJECT HIGHLIGHT

    Lead Generation for AdTech Company

    4.5 — Belkins provided lead generation services for an adtech company. The team researched prospects, defined the client's ideal customer profile (ICP), crafted messages, and ran outreach on email and Read more
    Read 48 Reviews

    Industry Experience

    Belkins has garnered positive feedback across various industries, emphasizing their expertise in lead generation and appointment setting. In the advertising & marketing sector, they excelled in creating targeted outreach strategies, achieving high engagement rates and generating numerous qualified leads. Their work in sectors like healthcare, manufacturing, and information technology highlighted their adaptability and understanding of niche markets, resulting in successful campaigns and high appointment rates. Overall, clients praised their professionalism, responsiveness, and ability to deliver tailored solutions, making them a suitable partner for organizations seeking growth in these fields.

    Read All Reviews

    Select Industry to see insights

    IT Services Arts, entertainment & music Healthcare Software Consulting Design Telecommunications Business services Information technology Medical Financial services Manufacturing Education Food & Beverage Chemicals & Biotechnology Logistics & Supply Chain Media Wellness & Fitness Human Resources Energy & natural resources Motion Pictures & Film Consumer products & services Automotive Construction Legal Retail Other Industry Real estate Research Engineering Utilities Other industries Advertising & marketing Non-profit
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    A-SALES AB Logotype

    A-SALES AB

    4.9 62 reviews
    Premier Verified
    $1,000+
    < $25 / hr
    50 - 249
    Serves Colorado

    Services provided

    10% Call Center Services
    80% Sales Outsourcing
    10% Email Marketing

    A-SALES AB specializes in outbound sales and lead generation services. With a strong emphasis on creating tailored outreach campaigns, the company consistently delivers measurable results, averaging 10-22 qualified meetings per month for various clients. Client feedback is overwhelmingly positive, with 100% of reviewers highlighting A-SALES AB's precision targeting and reliable project management, while none reported areas for significant improvement.

    See all 62 projects
    19 of 20 reviews are 5 stars
    12 new reviews for Call Center Services services
    Less than $10,000 avg. project cost

    Reviewed 20 times in the past 6 months

    Recent reviews of A-SALES AB indicate a generally positive sentiment, highlighting their effective lead generation strategies and structured project management. Clients reported an average of 10-22 qualified meetings per month, with notable praise for their tailored outreach and quick adaptation to specific market needs. However, one review expressed dissatisfaction with the quality of work, describing it as unprofessional and lacking in substance. Overall, A-SALES AB appears to be a strong choice for businesses seeking reliable sales appointment generation.
    Read 20 Recent Reviews
    16 of 16 Call Center Services reviews are 5 stars
    13 new reviews for Call Center Services in past 6 months
    Less than $10,000 avg. project cost

    Call Center Services PROJECT HIGHLIGHT

    Sales, Email Mktg & Call Center Services for BPO Company

    5.0 — A-SALES AB provided sales outsourcing services for a BPO company. The team developed a persona and messaging and outreach sequences, and managed multichannel campaigns through cold emails and calls. Read more
    Read 16 Reviews

    Industry Experience

    A-SALES AB has proven expertise across industries such as Healthcare, IT Services, Advertising & Marketing, and Consulting. Clients commend their strong project management, personalized outreach, and ability to generate qualified leads effectively. Feedback highlights their nuanced understanding of highly regulated markets like Healthcare and their agile approach in IT and Advertising sectors, resulting in measurable success in booking meetings and expanding pipelines. Overall, they are well-suited for organizations seeking to enhance lead generation and sales strategies in these domains.

    Read All Reviews

    Select Industry to see insights

    Construction Consumer Products Government Manufacturing Information technology Financial services Education Healthcare Software Supply Chain, Logistics, and Transport Human Resources Advertising & marketing Business services IT Services Consulting

    View projects from:

    United States (13) Sweden (10) Norway (7) India (4) England (3) Finland (2) Canada (1) Germany (1) France (1) Netherlands (1) Australia (1) Philippines (1) Poland (1) Singapore (1) Belgium (1) United Arab Emirates (1) Armenia (1) Austria (1)
    View Profile Visit Website
    Assistring LLC Logotype

    Assistring LLC

    5.0 10 reviews
    $1,000+
    < $25 / hr
    50 - 249
    Serves Colorado

    Services provided

    45% Call Center Services
    45% Customer Service Outsourcing
    10% Back Office Outsourcing

    Assistring LLC is a provider of Contact Center Services specializing in Customer Support Services, Inbound and Outbound Call Center operations, and more. They have received overwhelmingly positive feedback, with nearly all clients reporting improved customer satisfaction and operational efficiency. Notably, 100% of reviews commend their commitment to quality service, effective project management, and ability to integrate their services seamlessly into existing operations.

    See all 10 projects

    Reviews mention Adaptable

    Clients have consistently praised Assistring LLC for their adaptability in managing customer service operations. One client highlighted their 'strategic communication' and 'regular updates,' which allowed them to effectively respond to dynamic needs. Additionally, Assistring LLC's team took the time to understand unique brand standards, ensuring alignment with client goals. Overall, feedback reflects a strong sentiment of satisfaction regarding their flexibility and responsiveness.
    • Call Center Services for Wholesale Retail Company
      5.0 Oct 12, 2024

      Assistring LLC has the best performance. Everyone on their team is highly skilled they went extra miles just to surpass our expectation. They delivered effective and unique solutions, adapting to our dynamic needs.

      Read Full Review
    • Call Center Services for Party Goods Retailer
      5.0 Oct 14, 2024

      Our collaboration with Assistring LLC was smooth all through the project, with Assistring LLC's team ensuring Strategic communication, regular updates, and adaptability to meet our dynamic needs. Their team took time to understand Party City's unique brand standards and customer expectations, positioning their approach to match with our goals.

      Read Full Review
    Read All Reviews
    9 of 10 Call Center Services reviews are 5 stars
    2 new reviews for Call Center Services in past 6 months
    $10,000 – $49,000 avg. project cost

    Call Center Services PROJECT HIGHLIGHT

    Call Center Services for Party Goods Retailer

    5.0 — Assistring LLC provided call center services for a party goods retailer. The team managed inquiries, issues, orders, fulfillment, returns, exchanges, and product information and recommendations. Read more
    Read 10 Reviews

    View projects from:

    United States (6) England (4)
    $1,000 Best for 500 calls a month. $5,000 Best for 2500 calls a month. $10,000 Best for 5000 calls a month.

    Customer Support call

    Our Customer Support Call package provides businesses with 24/7 professional customer service to handle inbound calls, inquiries, and order-taking. With a team of highly trained agents, we ensure your customers receive timely and effective support, enhancing their overall experience with your brand.
    View Packages
    View Profile Visit Website
  • Intro CRM Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Denver, CO

    Services provided

    80% CRM Consulting and SI
    20% Sales Outsourcing

    Intro CRM is a CRM consulting and SI company. Established in 2019, the team offers CRM consulting and SI and Sales Outsourcing. The agency is located in Denver, Colorado.

    Read more
    View Profile
  • Virtual Marketing Assistant Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Denver, CO

    Services provided

    15% Email Marketing
    15% Graphic Design
    15% Search Engine Optimization +5 services
    15% Social Media Marketing
    10% Back Office Outsourcing
    10% Customer Service Outsourcing
    10% Sales Outsourcing
    10% Translation

    Virtual Marketing Assistant, a small Email Marketing company, is based in Denver, Colorado. Their services include Email Marketing and Graphic Design.

    Read more
    View Profile
  • Denny Miller SEO Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer
    Castle Rock, CO

    Services provided

    40% Search Engine Optimization
    20% Pay Per Click
    20% Web Design +2 services
    10% Conversion Optimization
    10% Sales Outsourcing

    Denny Miller SEO, a SEO services firm, is headquartered in Castle Rock, Colorado. Their services include Search Engine Optimization and Pay Per Click.

    Read more
    View Profile
  • Haller Marketing Partners Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer
    Littleton, CO

    Services provided

    20% Business Consulting
    20% Fractional CMO Services
    20% Marketing Strategy +4 services
    10% Branding
    10% Content Marketing
    10% Digital Strategy
    10% Sales Outsourcing

    Marketing Strategy company Haller Marketing Partners provides Marketing Strategy and Business Consulting. They are in Littleton, Colorado.

    Read more
    View Profile
  • Propulsion Growth Solutions Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer
    Aurora, CO

    Services provided

    20% Business Consulting
    20% Financial Consulting
    20% Fractional CMO Services +3 services
    20% Market Research
    10% Corporate Training & Coaching
    10% Sales Outsourcing

    Propulsion Growth Solutions is a Market Research company founded in 2023. Their services include Market Research and Business Consulting.

    Read more
    View Profile
  • Brave World Marketing Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer
    Denver, CO

    Services provided

    15% Advertising
    15% Branding
    15% Market Research +4 services
    15% Marketing Strategy
    15% Social Media Marketing
    15% Web Development
    10% Sales Outsourcing

    Brave World Marketing is a small Advertising company founded in 2015. Their team provides Advertising and Branding.

    Read more
    View Profile

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At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.

Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.

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Ability to deliver
Focus
Clutch Leaders Matrix

Rollover to see company insights or click a company below for more details.

1 GenSales - B2B LeadGen
2 VonBridge Solutions
3 ExitVision

List of the Top 3 Colorado Call Center Companies & Voice Services

  1. GenSales - B2B LeadGen Logotype

    GenSales - B2B LeadGen

    Undisclosed
    Undisclosed
    50 - 249
    Denver, CO

    Ability to deliver

    32.8/40.0
    16.4/20 Reviews
    10/10 Clients & Experience
    6.4/10 Market Presence

    Service focus

    90% Sales Outsourcing
    10% Other
    View Profile Visit Website
  2. VonBridge Solutions Logotype

    VonBridge Solutions

    $1,000+
    < $25 / hr
    10 - 49
    Denver, CO

    Ability to deliver

    20.8/40.0
    16.8/20 Reviews
    0/10 Clients & Experience
    4/10 Market Presence

    Service focus

    30% Call Center Services
    10% Sales Outsourcing
    60% Other
    View Profile Visit Website
  3. ExitVision Logotype

    ExitVision

    $1,000+
    Undisclosed
    2 - 9
    Golden, CO

    Ability to deliver

    21.2/40.0
    16.8/20 Reviews
    0/10 Clients & Experience
    4.4/10 Market Presence

    Service focus

    20% Sales Outsourcing
    80% Other
    View Profile Visit Website
  4. TTEC Logotype

    TTEC

    $1,000+
    $25 - $49 / hr
    10,000+
    Englewood, CO

    Ability to deliver

    6/40.0
    0/20 Reviews
    0/10 Clients & Experience
    6/10 Market Presence

    Service focus

    50% Call Center Services
    50% Other
    View Profile Visit Website
  5. PRG Logotype

    PRG

    $1,000+
    < $25 / hr
    250 - 999
    Greenwood Village, CO

    Ability to deliver

    5.3/40.0
    0/20 Reviews
    0/10 Clients & Experience
    5.3/10 Market Presence

    Service focus

    20% Call Center Services
    10% Sales Outsourcing
    70% Other
    View Profile Visit Website
  6. Press-One Customer Care Logotype

    Press-One Customer Care

    Undisclosed
    < $25 / hr
    50 - 249
    Fort Collins, CO

    Ability to deliver

    5.2/40.0
    0/20 Reviews
    0/10 Clients & Experience
    5.2/10 Market Presence

    Service focus

    30% Call Center Services
    10% Sales Outsourcing
    60% Other
    View Profile Visit Website
  7. OTAVA® Logotype

    OTAVA®

    Undisclosed
    $100 - $149 / hr
    50 - 249
    Ann Arbor, MI

    Ability to deliver

    29/40.0
    16.2/20 Reviews
    6.8/10 Clients & Experience
    5.9/10 Market Presence

    Service focus

    15% Call Center Services
    85% Other
    View Profile Visit Website
  8. PixelBuddy Solutions Logotype

    PixelBuddy Solutions

    $50,000+
    $300+ / hr
    50 - 249
    Pueblo, CO

    Ability to deliver

    4/40.0
    0/20 Reviews
    0/10 Clients & Experience
    4/10 Market Presence

    Service focus

    20% Call Center Services
    20% Sales Outsourcing
    60% Other
    View Profile Visit Website
  9. Velarium Logotype

    Velarium

    Undisclosed
    Undisclosed
    50 - 249
    Longmont, CO

    Ability to deliver

    5.2/40.0
    0/20 Reviews
    0/10 Clients & Experience
    5.2/10 Market Presence

    Service focus

    30% Call Center Services
    70% Other
    View Profile Visit Website
  10. KLA Group Logotype

    KLA Group

    $1,000+
    $150 - $199 / hr
    10 - 49
    Centennial, CO

    Ability to deliver

    5.7/40.0
    0/20 Reviews
    0/10 Clients & Experience
    5.7/10 Market Presence

    Service focus

    30% Sales Outsourcing
    70% Other
    View Profile Visit Website
  11. Intelligent Office Logotype

    Intelligent Office

    Undisclosed
    Undisclosed
    250 - 999
    Denver

    Ability to deliver

    22.9/40.0
    14.6/20 Reviews
    2.4/10 Clients & Experience
    5.9/10 Market Presence

    Service focus

    48% Call Center Services
    52% Other
    View Profile Visit Website
  12. Revenue Accelerator Logotype

    Revenue Accelerator

    Undisclosed
    Undisclosed
    10 - 49
    Denver, CO

    Ability to deliver

    24/40.0
    16.6/20 Reviews
    1/10 Clients & Experience
    6.4/10 Market Presence

    Service focus

    10% Call Center Services
    50% Sales Outsourcing
    40% Other
    View Profile Visit Website
  13. CIENCE Technologies Logotype

    CIENCE Technologies

    $1,000+
    < $25 / hr
    1,000 - 9,999
    Denver, CO

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    40% Call Center Services
    30% Sales Outsourcing
    30% Other
    View Profile Visit Website
  14. Alphapage Logotype

    Alphapage

    $1,000+
    $25 - $49 / hr
    10 - 49
    Denver, CO

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    80% Call Center Services
    20% Sales Outsourcing
    View Profile Visit Website
  15. Office Evolution Logotype

    Office Evolution

    $1,000+
    $25 - $49 / hr
    50 - 249
    Denver, CO

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    100% Call Center Services
    View Profile Visit Website
  16. Elevation Connect Logotype

    Elevation Connect

    Undisclosed
    Undisclosed
    50 - 249
    Denver, CO

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    70% Call Center Services
    15% Sales Outsourcing
    15% Other
    View Profile Visit Website
  17. SalesHive Logotype

    SalesHive

    Undisclosed
    Undisclosed
    250 - 999
    Littleton, CO

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    20% Call Center Services
    40% Sales Outsourcing
    40% Other
    View Profile Visit Website
  18. Catalyst Solutions Logotype

    Catalyst Solutions

    Undisclosed
    Undisclosed
    250 - 999
    Greenwood Village, CO

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    35% Call Center Services
    65% Other
    View Profile Visit Website

Latest Call Centers Articles

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How to Build a Budget for Call Center Services [With Template]

Updated December 3, 2025
Sydney Wess

Call center costs can add up over time, so it’s important that companies establish a thorough budget plan before outsourcing.

Call Center Budget Template
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Guide to Call Center Outsourcing

Updated December 18, 2024
Hannah Hicklen

Call center outsourcing is when a company hires a BPO service provider to handle inbound or outbound calls.

Call Center Outsourcing
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How To Hire a Call Center in 4 Steps

Updated December 18, 2024
Sydney Wess

Looking to hire a call center? Connecting with a reliable team has never been easier— check out our quick 4-step process to find the perfect partnership.

Call Center Outsourcing

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Specialties

Order Processing Telemarketing Answering Services Outbound Lead Generation Sales Outsourcing Appointment Setting Third Party Verification Virtual Receptionist

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