Our expert analysts have ranked rank the top outbound call center companies that manage outbound calls and services on behalf of their business clients. Filter the agencies by price, location, portfolio, size and more criteria to find the most suitable one for your particular business 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.

Outbound Call Centers × Energy & Mining × Under $1,000 ×Clear Filters
  • US-Based Outbound SDR Agency. Boutique. Multi-Channel. Real Pipeline.

    Leadium builds each engagement around channel-optimized lead research, identifying whether each prospect is best reached by phone, email, or LinkedIn before outreach begins. Thefirm provides outbound and inbound appointment setting, cold calling, data sourcing, and deliverability management...

    Top Services:

    • Email Marketing
    • BPO
    • CRM Consulting
    • Business Consulting
    • Direct Marketing
    • Show more
    Location
    Las Vegas, Nevada
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000

    Leadium Services

    • Email Marketing
    • BPO
    • CRM Consulting
    • Business Consulting
    • Direct Marketing
    • Customer Support
    • Market Research
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Square
    • Rackspace
    • Microsoft
    • LG
    • DirecTV
    • OSRAM
    • Time Logistics
    • Palo Alto Networks
    • Amada Senior Care
    • brightwheel
    Data sourced from the agency's DesignRush profile

    Leadium Reviews & Testimonials

    • Scott Proffitt
      Scott Proffitt VP of Sales at Energy Assurance
      5.0★

      AI Marketing Review from Scott Proffitt

      Our monthly leads have gone up by 3x with Leadium. This allows us to focus on production efficiencies.

    • Sam Jennings
      Sam Jennings Sales Manager at Best Bees Company
      5.0★

      Call Centers Review from Sam Jennings

      Finding Leadium changed the way our team operates. They've been able to fill our pipeline with the people we want to talk to so we can focus on beekeeping.

    • Marcos Moura
      Marcos Moura Founder and COO at Amada Senior Care
      5.0★

      Call Centers Review from Marcos Moura

      Leadium is able to speak to our prospects as if they're Amada themselves. They're filling our pipeline in a way we couldn't!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Connecting Brands

    A global Digital Marketing Agency helping brands streamline and scale their business with bespoke SEO, Social Media Marketing, PPC, Email Marketing, Content Marketing, Database generation, Lead Generation, Branding, and Website development solutions.We help you grow your business online...

    Top Services:

    • SEO
    • Digital Marketing
    • WordPress Website Design
    • Digital Services
    • Social Media Marketing
    • Show more
    Location
    Pune, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $15/hr
    Minimal Budget
    Under $1,000

    Espial Solutions Services

    • SEO
    • Digital Marketing
    • WordPress Website Design
    • Digital Services
    • Social Media Marketing
    • Content Marketing
    • Email Marketing
    • PPC
    • Customer Support
    • eCommerce
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • TelerainMD
    • Boomerang Transportation
    • Bow and Baan Technology Services Pvt. Ltd.
    Data sourced from the agency's DesignRush profile

    Espial Solutions Reviews & Testimonials

    • Ahmed Iqbal Khan
      Ahmed Iqbal Khan Senior O&M Engineer at Amin Renewable Energy Company SAOC at Amin Renewable Energy Company SAOC
      5.0★

      PPC Review from Ahmed Iqbal Khan

      Espial worked for us to deliver quality leads through PPC campaigns. Our challenge was that we hardly had 1% conversion from all the clicks that we were getting through Google Adwords. Within a month our lead to conversion increased from 1% to 5%, that was a remarkable achievement. They know which design and content works best. The level of communication and responsiveness that we receive from them makes them incredibly easy to work with.

    • Saurabh Agarwal
      Saurabh Agarwal IT Manager at TelerainMD Inc
      5.0★

      SEO Review from Saurabh Agarwal

      We are very satisfied with the services received so far in these 7 months. Because of Espial Solution's efforts, the site's traffic boosted and most keywords used got high-rankings on Google search. As a result, the client receives more organic conversions and customer satisfaction. The team is very professional and punctual.

    • Rajeev Mehta
      Rajeev Mehta President at Medical Transportation Company
      5.0★

      Digital Marketing Review from Rajeev Mehta

      Working with them is quite fluid, they are available 24 hours of the day. Thanks to the work of Espial Solutions, website traffic increased and sales grew by almost 50%. The workflow is fluid, as the team is available all day. The client is impressed with the analytical way that Espial Solutions did their work, studying the business model first before starting. 

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Beyond Standard Solutions

    Transform Targets helps organizations scale operational capacity without increasing internal overhead. We provide skilled professionals who integrate directly into existing workflows, enabling businesses to operate efficiently while maintaining full visibility and control. Our focus is simple: support the...

    Top Services:

    • BPO
    • Customer Support
    • Logistics
    • Call Centers
    • Business Consulting
    • Show more
    Location
    McKinney, Texas
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed

    Transform Targets Services

    • BPO
    • Customer Support
    • Logistics
    • Call Centers
    • Business Consulting
    • CRM Consulting
    • eCommerce
    • Market Research
    • Phone Answering Services
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Construction Industry
    • Transportation & Logistics Industry
    • Insurance Industry
    Data sourced from the agency's DesignRush profile

    Transform Targets Reviews & Testimonials

    • Abu Moosa
      Abu Moosa Review from Google
      5.0★

      Abu Moosa's Review Sourced from Google

      Exceptional offshore staffing service! Their 23-person team is highly skilled, responsive, and truly feels like an extension of our own company. From onboarding to daily operations, everything was seamless and professional. They saved us time, cost, and hiring hassle. Highly recommended.

    • Abu Moosa
      Abu Moosa Review from Google
      5.0★

      Abu Moosa's Review Sourced from Google

      Exceptional offshore staffing service! Their 23-person team is highly skilled, responsive, and truly feels like an extension of our own company. From onboarding to daily operations, everything was seamless and professional. They saved us time, cost, and hiring hassle. Highly recommended!

    • Zayan Hassan
      Zayan Hassan Review from Google
      5.0★

      Zayan Hassan's Review Sourced from Google

      Excellent support across chat, email, and social media.The team is responsive, professional, and always helpful.They provide a smooth and consistent customer experience.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Best Outsourced Virtual BDC Services Company USA

    A Virtual Business Development Center (BDC) is an outsourced team specializing in lead management, customer engagement, and sales support. Operating remotely, these professionals handle appointment scheduling, follow-ups, CRM management, and digital customer interactions boosting conversions while reducing...

    Top Services:

    • Call Centers
    • Software Development
    Location
    Sugar Land, Texas
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    Minimal Budget
    Under $1,000

    Virtual BDC LLC Services

    • Call Centers
    • Software Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Ohio Auto Group
    • Texas Luxury Autos
    • Northwest Auto Mall
    Data sourced from the agency's DesignRush profile
  • Diversified Holding Company

    We are a South Africa-based operations and support systems agency helping startups and growing companies scale customer support, AI operations, and backend workflows. We specialize in building efficient human-in-the-loop systems, support triage processes, and operational structures that reduce workload on...

    Top Services:

    • Business Consulting
    • BPO
    • Phone Answering Services
    • Customer Support
    • HR Outsourcing
    • Show more
    Location
    Cape Town, South Africa
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000

    Econx Group Services

    • Business Consulting
    • BPO
    • Phone Answering Services
    • Customer Support
    • HR Outsourcing
    • Call Centers
    • Market Research
    • Transcription Services
    • Accounting
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • eCommerce Industry
    • Hardware & Networking Industry
    • Corporate Services Industry
    Data sourced from the agency's DesignRush profile
  • Human-Focused.

    Offering Contact & Call Center Services. Experience is everything. At NexRep, we know that creating exceptional experiences for our Marketplace Contractors inspires them to create exceptional customer experiences...

    Top Services:

    • Call Centers
    • Phone Answering Services
    • BPO
    Location
    Portland, Maine
    Number of Employees
    250 - 499
    Minimal Budget
    Under $1,000

    NexRep Services

    • Call Centers
    • Phone Answering Services
    • BPO
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Sprint
    • Marmot
    • Glossier.
    Data sourced from the agency's DesignRush profile
  • AI-Enabled Custom Software Development Company

    Vaden Consultancy is a trusted partner delivering end-to-end technology and talent solutions to help businesses scale efficiently and securely. With deep expertise in Microsoft 365 CRM, Business Central, Power Platform, Azure Cloud, custom software development, and IT staff augmentation...

    Top Services:

    • Software Development
    • Staff Augmentation
    • HR Outsourcing
    • ERP Consulting
    • CRM Consulting
    • Show more
    Location
    Ahmedabad, India
    Number of Employees
    50 - 99
    Average Hourly Rate
    $20/hr
    Minimal Budget
    Under $1,000

    Vaden Consultancy Services

    • Software Development
    • Staff Augmentation
    • HR Outsourcing
    • ERP Consulting
    • CRM Consulting
    • DevOps Consulting
    • Cybersecurity
    • Customer Support
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Education Industry
    • Health Care Industry
    • Energy & Mining Industry
    Data sourced from the agency's DesignRush profile

    Vaden Consultancy Reviews & Testimonials

    • Tanu Bhagchandani
      Tanu Bhagchandani Review from Google
      4.0★

      Tanu Bhagchandani's Review Sourced from Google

      Working with Vaden Consultancy has been a great experience. The team is professional, supportive, and delivers quality solutions on time. Their expertise and commitment to client satisfaction truly stand out. Highly recommended!

    • Navin Vora
      Navin Vora Review from Google
      5.0★

      Navin Vora's Review Sourced from Google

      Vaden Consutany is best recruitment services company. We have hire VADEN CONSUTANY company last 1 year ago. Vaden is provided best resource to us.

    • Kaushal Sharma
      Kaushal Sharma Review from Google
      5.0★

      Kaushal Sharma's Review Sourced from Google

      "I joined Vaden Consultancy as a Programmer Analyst one year ago, and my journey so far has been truly rewarding. The company nurtures a supportive and collaborative culture where continuous learning and professional growth are strongly encouraged. As a leading software development company, Vaden Consultancy provides opportunities to work on innovative projects with modern technologies. The leadership team is approachable, and the work is both challenging and fulfilling. I’ve experienced remarkable personal and professional growth here. Vaden Consultancy is an excellent place for anyone eager to advance their career in a dynamic and forward-thinking environment. Excited for the future ahead!"

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews

Why companies trust DesignRush

Every agency is independently vetted before it can be listed or ranked

1

Identity Check

We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
128,711+
2

Portfolio Review

We review agency work, case studies, and results to confirm skill.

Applicants rejected
47%
3

Ongoing Audit

We monitor listings regularly; outdated agencies are removed.

Agencies verified
7

Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.

See how rankings and monetization work.