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 × Music × Sort by: Organic Rankings ×Clear Filters
  • Transforming Sales Growth Through Science

    LeadBuds is a B2B lead generation, appointment setting, SDR outsourcing, and call center company, combining LinkedIn outreach, email campaigns, Telegram outreach, and paid advertising. Founded in 2017, the agency serves fintech, healthcare, and Web3 companies with AI-assisted outreach strategies...

    Top Services:

    • Email Marketing
    • BPO
    • Market Research
    • Phone Answering Services
    • Call Centers
    • Show more
    Location
    Kyiv, Ukraine
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000

    LeadBuds Services

    • Email Marketing
    • BPO
    • Market Research
    • Phone Answering Services
    • Call Centers
    • CRM Consulting
    • Staff Augmentation
    • Content Marketing
    • Digital Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Nissan
    • Advascale
    • Hapana
    • Komulin
    • Nitra
    • Pillard
    • Suriefy
    Data sourced from the agency's DesignRush profile

    LeadBuds Reviews & Testimonials

    • Gregory Dangler
      Gregory Dangler Founder at BulkSource, Inc.
      5.0

      Call Centers Review from Gregory Dangler

      LeadBuds offers client reporting, help desk assistance, and technical support. Reaching customer CSAT scores, first call resolution, and call center response times. observant, capable, and exhaustive. capable of taking the lead in important areas pertaining to their services. They have tremendous industrial experience and leadership.

    • John Nicolosi
      John Nicolosi CEO at CerpassRx
      5.0

      B2B Social Media Marketing Review from John Nicolosi

      I was sent a thorough campaign questionnaire after registering that outlined the purpose of the project and my target audience. LeadBuds took those responses, created some brilliant message sequences, and created a LinkedIn prospect list that was specifically targeted. I made dozens of new connections and had six survey replies in the first two weeks of the campaign. These are lengthy questionnaires with in-depth inquiries. I've already had six answers, compared to my estimated 1-2. They know what they're doing based on the outcomes they provide, therefore I won't recommend changing. Continue as you are!

    • Naomi Allen
      Naomi Allen CEO and Co-Founder at Brightline
      5.0

      Business Consulting Review from Naomi Allen

      LeadBuds takes care of our video labeling needs. With a 98% accuracy rate in video review, LeadBuds' agents can evaluate more than 350 video events in an hour. Since we are a technological firm, our goods and software are always changing and developing. LeadBuds' outstanding project management and leadership teams are demonstrated by how well they have adjusted to such adjustments.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • You Create, We Support.

    MixBS helps businesses grow by providing market research, practical strategies, and decision-making support to achieve sustainable success...

    Top Services:

    • Call Centers
    • Phone Answering Services
    • Customer Support
    • Business Consulting
    • BPO
    • Show more
    Location
    Miami, Florida
    Number of Employees
    500 - 999
    Average Hourly Rate
    $12/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    4 Projects Listed

    MiXBS, LLC Services

    • Call Centers
    • Phone Answering Services
    • Customer Support
    • Business Consulting
    • BPO
    • Market Research
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • CDEK
    • Buch
    • Ramayoga
    • Imark Tech
    • SovPlym
    • KNOVR
    Data sourced from the agency's DesignRush profile

    MiXBS, LLC Reviews & Testimonials

    • Kevin Swindlehurst
      Kevin Swindlehurst Airline Operations Supervisor at Flightworx Aviation
      5.0

      Customer Support Review from Kevin Swindlehurst

      If youre looking for a partner thats flexible, highly skilled in multilingual customer support, and deeply knowledgeable in customer development and market research, MiXBS is the team you need. Their ability to adapt, deliver results, and provide top-tier support makes them stand out in the industry. We couldnt be happier with the partnershiptheyre exactly what we needed, and honestly, theyre awesome.

    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
125,672+
2

Portfolio Review

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

Applicants rejected
48%
3

Ongoing Audit

We monitor listings regularly; outdated agencies are removed.

Agencies verified
2

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

See how rankings and monetization work.

ReceiveFreeProposals

For your project

1

Specify your budget, timeline and project requirements

2

Our experts curate a list of up to 5 most qualified candidate agencies

3

We connect you with them so you can choose the most suitable partner