Discover the top-performing call centres in the United Kingdom that provide specialized services at the highest standards to help businesses of all sizes deliver a great customer experience. Browse their rates, reviews, size and more using our custom filters.

Best United Kingdom Call Center Service Providers Rankings

4 Companies - Rankings updated: September 05, 2026

Every agency featured on DesignRush is vetted for expertise and client satisfaction to support your decision-making. Some listings may be sponsored.

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  • SmartPA

    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

    SmartPA Services

    • Customer Support
    • BPO
    • Market Research
    • Transcription Services
    • Translation Services
    • HR Outsourcing
    • Call Centers
    • Accounting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Cox-London
    • Complete Refinish
    • Collette CWMedia
    • Krispy Kreme
    • Total Oil and Gas
    Data sourced from the agency's DesignRush profile

    SmartPA Reviews & Testimonials

    • Vicky Grobbelaar
      Vicky Grobbelaar Review from Google
      5.0 ★

      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
      Pedro Mendoza Review from Google
      5.0 ★

      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 +++++

    • Alexandra Stewart
      Alexandra Stewart Review from Google
      5.0 ★

      Alexandra Stewart's Review Sourced from Google

      Terri has been an incredible SmartPA assistant for our family over the past 18 months. Her support has been invaluable in managing our busy work and home administrative tasks. Throughout our travels across Europe, the US, and Canada, as well as during our recent move to a new house and country, Terri has been there for us every step of the way. In particular, I have appreciated that Terri has used great judgment in assessing options on all fronts and hasn't just gone for the easy road of blindly following orders. I have trusted her as a "second me" and that has been so helpful. We couldn't have done any of this without her!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    4.0 4.0 (55)

  • STARTEK

    The New Age of Customer Experience

    A global customer experience (CX) management solutions provider, Startek delivers best-in-class omnichannel CX, digital transformation, virtual receptionist, call and contact center, and enterprise tech services for leading brands, from Fortune 500s to fast-growing startups...

    Top Services:

    • BPO
    • Call Centers
    Location
    Manchester, United Kingdom
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000

    STARTEK Services

    • BPO
    • Call Centers
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Flair Airlines
    • Telkom
    • Mercedes-Benz
    Data sourced from the agency's DesignRush profile

    STARTEK Reviews & Testimonials

    • Karina Thompson
      Karina Thompson Review from Google
      1.0 ★

      Karina Thompson's Review Sourced from Google

      Startek is the worst. They provide tech support for other companies... And they never seem to know what is going on. Poorly trained.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    2.3 2.3 (4)

  • Service 800

    Customer Experience Consultants

    For more than 30 years, SERVICE 800 has been designing programs and providing resources to measure Customer Experience every day. The SERVICE 800 methodology delivers the accurate metrics you need to build and measure an effective customer journey map. SERVICE 800 programs reveal the actions and behaviors...

    Top Services:

    • Call Centers
    • Market Research
    Location
    London, United Kingdom
    Number of Employees
    250 - 499

    Service 800 Services

    • Call Centers
    • Market Research
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Johnson Controls
    • Johnson & Johnson Surgical Vision
    • Grundfos North America
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • LHB Consulting

    Keeping You In Touch.

    LHB Consulting, a London-based lead generation agency with two decades of experience, specializes in a range of services, including telesales, telemarketing, appointment scheduling, the creation and follow-up of email marketing campaigns, and data cleansing...

    Top Services:

    • Call Centers
    • Digital Marketing
    Location
    Uxbridge, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000

    LHB Consulting Services

    • Call Centers
    • Digital Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • FSL Events
    • GT Associates
    • Dolphin Group
    • Top Brand Cars
    • Manor House Autos
    • Route Trader
    • Tiger Like Events
    Data sourced from the agency's DesignRush profile

    LHB Consulting Reviews & Testimonials

    • George Webb
      George Webb Review from Google
      1.0 ★

      George Webb's Review Sourced from Google

      *** SCAM ALERT *** I strongly advise staying away from this organisation. Ernest comes across as a nice person however he is extremely unprofessional and will not follow through on any professional or financial promises. PLEASE DO NOT USE.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    1.0 1.0 (1)

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