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 × Professional Services × Sort by: Top Rated ×Clear Filters
  • AcquireOne

    VerifiedVerified by the DesignRush team for authenticity and credibility.

    Modular B2B Sales Execution

    AcquireOne helps international B2B companies successfully enter and grow in the German speaking market through strategic sales outsourcing. We combine market entry strategy, outbound prospecting, cold calling, email outreach and LinkedIn campaigns to generate qualified sales opportunities without the need to...

    Top Services:

    • Call Centers
    • Email Marketing
    • Direct Marketing
    Location
    Berlin, Germany
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed

    AcquireOne Services

    • Call Centers
    • Email Marketing
    • Direct Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Jotform
    • Synaos
    • Everspring
    • ComControl
    • Payt
    • ANG
    • Tribe
    Data sourced from the agency's DesignRush profile

    AcquireOne Reviews & Testimonials

    • Katharina Müller
      Katharina Müller Business Development Manager at comcontrol
      5.0★

      Appointment Setting Review from Katharina Müller

      With AcquireOne, we've finally built a functioning system for our lead generation. Appointments are reliably scheduled and kept with a current show rate of 98%. I can recommend the company for B2B appointment setting.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Proman Consulting is a B2B lead generation and business development agency helping companies build predictable sales pipelines, reach the right decision-makers, and turn outbound activity into qualified business opportunities...

    Top Services:

    • Business Consulting
    • Market Research
    • Call Centers
    • Customer Support
    • Content Marketing
    • Show more
    Location
    Kragujevac, Serbia
    Number of Employees
    Under 49
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    3 Projects Listed
  • Delivering 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

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
129,495+
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
3

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

See how rankings and monetization work.