Best London Call Center Service Providers Rankings

34 Companies - Rankings updated: July 03, 2026

DesignRush vets all agencies based on professional qualifications and verified customer feedback to help you choose confidently. Some featured agencies maintain paid sponsorships.

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  • Hugo

    World-Class Outsourced Teams Operating 24/7 Globally, in 60+ Languages

    Hugo deploys dedicated inbound and outbound call center teams across 60+ languages, with 24/7 coverage and 99.9% uptime. Its university-educated agents deliver 88% first call resolution. The call center provider is ISO 27001, HIPAA, and SOC 2 certified.  [... see all Hugo reviews ]

    Top Services:

    • Call Centers
    • BPO
    • Back Office Outsourcing
    Location
    London, United Kingdom
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $10/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    8 Projects Listed

    Hugo Services

    • Customer Support
    • Call Centers
    • BPO
    • Phone Answering Services
    • Transcription Services
    • Translation Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Google
    • Meta
    • Outschool
    • Topicals
    • Attentive
    • Faire
    • Sakara
    • Aurora
    Data sourced from the agency's DesignRush profile

    Hugo Reviews & Testimonials

    • Greg Digneo
      Greg Digneo founder at content guppy
      5.0★

      B2B Review from Greg Digneo

      Best decision we made last year was partnering with this CX team for our customer support, billing, and sales assistance. We were drowning in client emails and chasing invoices late at night instead of focusing on SEO strategy. Results have been incredible: client response times dropped from hours to under an hour, payment collection improved 60%, landing page conversions up 28%, and client retention increased 35%. They integrated seamlessly with our systems and scaled with us as we grew. Now we have more time to focus on delivering SEO results instead of being stuck in support tickets all day. If you're an agency juggling client support with campaign management, this team is a game-changer.

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    • Nimmit Shah
      Nimmit Shah Owner at Pi Asset Management Ltd
      5.0★

      BPO Review from Nimmit Shah

      Collaborating with Hugo elevated our property management firm's performance. Their support solutions slashed response times by 40% and boosted tenant satisfaction by 30%. Hugo's seamless integration proved instrumental in propelling our business forward, setting new benchmarks in operational excellence.

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    • Jambu Subramanian
      Jambu Subramanian Senior Manager of Operations at Kasha Global
      5.0★

      Customer Support Review from Jambu Subramanian

      Their team quickly integrated into our workflow, demonstrating a deep understanding of our business needs. We were impressed by their professionalism and the ease with which they handled complex customer inquiries. Hugo's technical support team showed exceptional problem-solving skills, significantly reducing resolution times for order issues.

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    Reviews verified by DesignRush and sourced from the agency's profile
    Visit WebsiteView Profile
    4.8 4.8 (8)
    5.0 5.0 (9)

  • Pipeful

    Qualified Leads In Your Pipeline

    Qualified Leads In Your Pipeline

    Pipeful runs B2B appointment setting and lead generation campaigns using AI-assisted targeting, cold email outreach, and SDR-led qualification across 180+ countries. The agency draws from a database of 300 million verified business emails spanning 75+ industries and serves clients globally.  [... see all Pipeful reviews ]

    Top Services:

    • Call Centers
    • Outbound
    • Appointment Setting
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    6 Projects Listed
    View Profile
    5.0 5.0 (41)

  • Virtual Assistant India

    Amplify Business Performance With Virtual Assistants India

    Amplify Business Performance With Virtual Assistants India

    Virtual Assistant India staffs dedicated ecommerce virtual assistants who handle customer interactions across phone, email, and chat, alongside order processing, inventory management, and marketplace operations on Amazon, eBay, and other platforms. The call center company brings 25+ years of experience.  [... see all Virtual Assistant India reviews ]

    Top Services:

    • Call Centers
    • Virtual Receptionist
    Location
    London, United Kingdom
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    4.8 4.8 (5)

  • TWC IT Solutions

    Integrating Systems, Connecting Continents.

    Integrating Systems, Connecting Continents.

    Backed by 3,000+ clients, TWC IT Solutions offers professional call center services, combining cloud telephony, unified communications, and cybersecurity. Innovation and expertise converge effectively in each of our IT and communication initiatives, leading to partnerships with Microsoft and Cisco.  [... see all TWC IT Solutions reviews ]

    Top Services:

    • Call Centers
    • Phone Answering Services
    • Virtual Receptionist
    Location
    London, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    3 Projects Listed
    View Profile
    4.5 4.5 (2)
    5.0 5.0 (16)

  • Aidey

    Aidey is a Business Process Outsourcing company

    Aidey is a Business Process Outsourcing company

    Aidey is a BPO company, providing businesses of all sizes with an efficient way to manage their operations through flexible and cost-effective outsourcing solutions.  [... see all Aidey reviews ]

    Top Services:

    • Call Centers
    • BPO
    • Virtual Receptionist
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $8/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed
    View Profile
    4.3 4.3 (1)

  • Proten International

    People. Process. Technology

    People. Process. Technology

    Proten International is a leading international Human Resource and Management Consulting firm which provides a range of Advisory and Transformation solutions. Our focus is to align every organisation’s activities relating to People, Process and Technology closely with our business strategy and vision.  [... view Proten International profile ]

    Top Services:

    • Call Centers
    • BPO
    • Back Office Outsourcing
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $50,000 & Up
    View Profile
    5.0 5.0 (2)

  • MarketOne International

    MarketOne is a global demand generation agency. We create and nurture leads, retain and grow customers, and give clients the confidence their marketing investments will produce quantifiable returns.  [... view MarketOne International profile ]

    Top Services:

    • Call Centers
    • Telemarketing
    Location
    London, United Kingdom
    Number of Employees
    500 - 999
    Average Hourly Rate
    $50/hr
    View Profile
    4.2 4.2 (5)

  • Growth Hub

    We help b2b businesses build a predictable pipeline & accelerate growth.  [... view Growth Hub profile ]

    Top Services:

    • Call Centers
    • Outbound
    • Appointment Setting
    Location
    London, United Kingdom
    Number of Employees
    50 - 99
    View Profile

  • FirstCall

    Providing International Virtual Office Solutions, Office Space, Mail Forwarding, Live Call Handling, Fax to Email,Vocalist Services and more.  [... view FirstCall profile ]

    Top Services:

    • Call Centers
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    View Profile
    5.0 5.0 (3)

  • everreach

    The virtual phone service for ambitious UK startups & small businesses. Answer more calls and win more business.  [... view Everreach profile ]

    Top Services:

    • Call Centers
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    View Profile

  • Success with Systems

    21st Century Sales & Appointment Setting.

    21st Century Sales & Appointment Setting.

    Success with Systems. An end-to-end service helping organizations with every aspect of the sales cycle. From CRM development, marketing materials, marketing automation, scriptwriting, sales training, sales management, email marketing, social media marketing, and ongoing product and pricing development.  [... view Success With Systems profile ]

    Top Services:

    • Call Centers
    • Appointment Setting
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $80/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile

  • Supportal Business Services

    Do Less And Achieve More.

    Do Less And Achieve More.

    Supportal Business Services endeavors to elevate your efficiency and productivity, facilitating a transition to a more streamlined and effective work approach. By providing access to a cadre of skilled UK Virtual Assistants, we aim to help you optimize your operations, reclaim valuable time, and foster growth  [... view Supportal Business Services profile ]

    Top Services:

    • Call Centers
    • Virtual Receptionist
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Minimal Budget
    Under $1,000
    View Profile

  • Titanium Telemarketing

    No Gimmick, No Tricks, No Robots, No Scripts

    No Gimmick, No Tricks, No Robots, No Scripts

    Titanium Telemarketing takes pride in delivering exceptional and high-level sales skills through various freelancing platforms, ensuring a personalized and authentic approach without the use of robotic staff or insincere scripts. Our commitment is to provide genuine and effective telemarketing services  [... view Titanium Telemarketing profile ]

    Top Services:

    • Call Centers
    • Telemarketing
    Location
    London, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $150/hr
    View Profile

  • Ignite Drive

    Together Will Envoke Your Drive.

    Together Will Envoke Your Drive.

    Ignite Drive is focused purely on transforming your company through marketing and sales to deliver meaningful change that lasts a lifetime. We work closely with C-suit members and extended leadership teams in SMEs who want to get their big ideas that will change the world seen by those who matter.  [... view Ignite Drive profile ]

    Top Services:

    • Call Centers
    • Virtual Receptionist
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    View Profile
    5.0 5.0 (3)

  • Shufti Pro

    Verify With Confidence

    Verify With Confidence

    Shufti Pro offers AI-powered identity verification services that help businesses ensure compliance and prevent fraud in real time.  [... view Shufti Pro profile ]

    Top Services:

    • Call Centers
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $1/hr
    View Profile
    4.6 4.6 (46)

  • Jumio

    Trust in the Digital World

    Trust in the Digital World

    Jumio uses AI and biometrics to deliver fast, accurate identity verification solutions, helping businesses to prevent fraud and ensure compliance.  [... view Jumio profile ]

    Top Services:

    • Call Centers
    Location
    London, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $1/hr
    View Profile
    4.3 4.3 (10)

  • TLGC

    Smash Your Sales Targets!

    Smash Your Sales Targets!

    The Lead Generation Company is a multi-award-winning outbound B2B agency. We help companies generate new business through effective lead generation support.  [... view TLGC profile ]

    Top Services:

    • Call Centers
    • Telemarketing
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    View Profile

  • Quantanite

    Quantanite is a global professional services company focusing on business process transformation, primarily through robotic process automation (RPA), intelligent automation and setting up dedicated teams in offshore shared service centres. We work with both fast-growing companies and multinational  [... view Quantanite profile ]

    Top Services:

    • Call Centers
    • Outbound
    Location
    London, United Kingdom
    Number of Employees
    1000 & Up
    View Profile
    3.7 3.7 (3)

  • Service 800

    Customer Experience Consultants

    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  [... view Service 800 profile ]

    Top Services:

    • Call Centers
    • Survey Services
    Location
    London, United Kingdom
    Number of Employees
    250 - 499
    View Profile

  • OfficeFront

    Telephone Answering - Call Handling - Virtual Receptionist - Virtual Switchboard - Virtual Offices - Serviced Offices - Meeting Room Hire - Nationwide Business Address  [... view OfficeFront profile ]

    Top Services:

    • Call Centers
    • Phone Answering Services
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    View Profile
    5.0 5.0 (18)

  • SalesAR

    We Supercharge Your Sales

    We Supercharge Your Sales

    Drive your B2B lead generation with SalesAR and create a buzz around your brand.  [... view SalesAR profile ]

    Top Services:

    • Call Centers
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    4.4 4.4 (14)

  • Gigaleads

    The reliable and consistent source of hot leads.

    The reliable and consistent source of hot leads.

    We are the only Netherlands-based marketing agency that guarantees profitable marketing campaigns. If our campaigns are not profitable, you just don't pay us - easy as that. Feel free to book a call and discover the magic of Gigaleads today.  [... view Gigaleads profile ]

    Top Services:

    • Call Centers
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
    View Profile
    4.6 4.6 (68)

  • Talando

    Empower tech companies to scale your operations and unlock your full growth potential.

    Empower tech companies to scale your operations and unlock your full growth potential.

    Talando provides cutting-edge solutions for businesses looking to scale and expand their operations. With a team of experienced consultants armed with the latest tools and AI instruments, we can accurately predict and analyze personnel behavior, allowing us to offer progressive solutions for optimizing your  [... view Talando profile ]

    Top Services:

    • Call Centers
    • Survey Services
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $250/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile

  • Tiger Recruitment Ltd

    We specialise in matching exceptional support staff to top businesses and private individuals.We recruit for a range of positions around the world, including personal assistants, executive assistants, administrative assistants and many more. Our expert consultants only work with high-calibre individuals  [... view Tiger Recruitment Ltd profile ]

    Top Services:

    • Call Centers
    Location
    London, United Kingdom
    Number of Employees
    50 - 99
    View Profile

  • Odondo

    Agile Customer Service That Scales With Demand

    Agile Customer Service That Scales With Demand

    Odondo's distributed, on-demand model gives clients access to experienced, high-quality agents that deliver better customer service at a lower cost.  [... view Odondo profile ]

    Top Services:

    • Call Centers
    • Phone Answering Services
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    Minimal Budget
    $1,000 - $10,000
    View Profile
    4.3 4.3 (22)

  • Sabio

    Transforming Customer Experiences

    Transforming Customer Experiences

    Sabio Group specializes in crafting brilliant customer experiences by combining data, AI, and personalized journey mapping. With expertise in cloud migration and cutting-edge CX technologies, the company delivers end-to-end solutions that elevate customer interactions. Focused on innovation and customer  [... view Sabio profile ]

    Top Services:

    • Call Centers
    • Customer Support
    Location
    London, United Kingdom
    Number of Employees
    1000 & Up
    View Profile
    4.4 4.4 (5)

  • UnboundB2B

    Intelligent Demand Generation for Accelerated Growth

    Intelligent Demand Generation for Accelerated Growth

    With our B2B lead generation, you can be confident that not only will you get the sheer volume of leads necessary to drive growth but also a high-quality guaranteed. This way, your time is spent nurturing promising prospects rather than chasing down dead ends - resulting in greater success and higher  [... view UnboundB2B profile ]

    Top Services:

    • Call Centers
    • Lead Generation
    • Appointment Setting
    Location
    London, United Kingdom
    Number of Employees
    500 - 999
    Minimal Budget
    $25,000 - $50,000
    View Profile

  • VHR

    Global Technical Recruitment

    Global Technical Recruitment

    VHR is a multi award-winning technical recruitment organisation serving the Aerospace & Aviation, F1 & Automotive, Engineering & Manufacturing, Defence & Security, Civils & Infrastructure, Science & Technology and Marine industries across 52 countries.  [... view VHR profile ]

    Top Services:

    • Call Centers
    • BPO
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    View Profile
    4.9 4.9 (356)

  • 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.  [... view SmartPA profile ]

    Top Services:

    • Call Centers
    • Back Office Outsourcing
    • Customer Support
    Location
    London, United Kingdom
    Number of Employees
    250 - 499
    Average Hourly Rate
    $24/hr
    View Profile
    4.0 4.0 (55)

  • Lead Gen Department

    Guaranteed to Achieve Great Results

    Guaranteed to Achieve Great Results

    The Lead Gen Department is your partner for successful and consistent lead generation. Expertly crafted outbound campaigns, including email outreach and LinkedIn messaging, ensure that your sales team has enough quality leads coming in on an ongoing basis.  [... view Lead Gen Department profile ]

    Top Services:

    • Call Centers
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile

  • NICE

    The cloud contact center software leader.

    The cloud contact center software leader.

    NICE inContact is the cloud contact center software leader, with the most complete, easiest and most reliable solution to help organizations achieve their customer experience goals. NICE inContact continuously innovates in the cloud and is the only provider to offer a complete solution that includes the  [... view NICE profile ]

    Top Services:

    • Call Centers
    • Customer Support
    Location
    London, United Kingdom
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    4.3 4.3 (30)

  • VirtusaPolaris

    Get ahead of the competition

    Get ahead of the competition

    On a transformational day in 2016, Virtusa Corporation joined forces with Polaris Consulting & Services Limited to form the powerful new brand - VirtusaPolaris. With this union, we have combined diamond-sharp software engineering skills and deep industry knowledge that is sure to unlock groundbreaking  [... view VirtusaPolaris profile ]

    Top Services:

    • Call Centers
    • Phone Answering Services
    • Back Office Outsourcing
    Location
    London, United Kingdom
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile

  • Primo Interactive

    Acquire, Convert, Optimise, Grow

    Acquire, Convert, Optimise, Grow

    Primo Interactive has been building the digital machinery behind UK businesses since 2006: hand-coded websites, bespoke CRM, AI voice agents, e-commerce platforms, and the SEO and paid search that keep them busy. One UK and EU team, twenty-plus disciplines, every platform owned outright by the client.  [... view Primo Interactive profile ]
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
    View Profile

Related Services

Call Center Companies Near London

About The Author and Expert Reviewer

Senior Content Editor

bojana@designrush.com

Bojana Trajcheva is a seasoned content editor and innovation researcher with extensive experience in the tech and marketing industries. Formerly Editor-in-Chief at Studentsko Eho, she developed a strong foundation in content creation and editorial leadership. Bojana further honed her skills in senior innovation research roles and now brings this combined expertise to her work as an editor at DesignRush.

Director of Client Relationships

andrija@designrush.com

Andrija Savić is an accomplished and highly competent sales professional with record-breaking achievements. His work at BSC Kragujevac, a leading European NGO affiliated with SPARK Netherlands, resulted in a 24% increase in course completion rates. While at Global Media Box, his team contributed 26.5% of the company's monthly sales in just seven months. Since becoming the Director of Client Relationships at DesignRush, the business has gained a 700% revenue increase, a testament to his proven competency and dedication to customer satisfaction.