Top 100 Back Office BPO Services in London

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Top 100 Back Office BPO Services in London

The Best of December 2025

Looking for a top non-voice BPO service provider in London?

Business process outsourcing (BPO) is growing globally, with a growth rate of about 4%. Back office BPO services make it easier for businesses to tackle core back office activities such as accounting or record maintenance while prioritizing core business processes and operations. 

List of the Best London Back Office BPO Firms

  • 1
    (4 Reviews) 4.8

    Timeliness

    4.8

    Service Excellence

    4.6

    Value

    5.0

    Would Recommend

    4.6
    $1,000+
    1,000 - 9,999 employees
    London, England

    Quantanite is a professional services company based in London and has offices in Johannesburg and Dhaka, Bangladesh. The company, founded in 2014, has more than 1,000 employees and provides non-voice BPO/back office services, voice services, transcription, AI, and email marketing services. Quantanite serves small and larger-sized companies in various industries that include automotive, business services, and consumer products & services.

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    Clients

    Just Park

    Industries

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  • 2
    (11 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $10,000+
    250 - 999 employees
    دبي, United Arab Emirates
    Datapowerhub is a midsize back office outsourcing company founded in 2010. Their services include back office outsourcing and transcription. The agency is headquartered in New York, New York; دبي, United Arab Emirates; San Francisco, California and London, United Kingdom.
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    Clients

    IBM

    Industries

  • 3
    (14 Reviews) 4.7

    Timeliness

    4.6

    Service Excellence

    4.7

    Value

    4.6

    Would Recommend

    4.8
    $25,000+
    250 - 999 employees
    London, England

    Flat Rock Technology is a development agency headquartered in London, with an office in Varna, Bulgaria. Since 2008, their team of 88 has been specializing in custom software development, mobile app development, UX/UI design, and more for mainly midmarket-size clients. They primarily serve clients in the IT, consumer products & services and media industries. 

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    Clients

    Audiocodes

    Industries

  • 4
    (25 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $5,000+
    50 - 249 employees
    London, England
    Versich, a cloud consulting & SI company, is located in London, United Kingdom. The company provides cloud consulting & SI, IT staff augmentation, call center services, commercial financing, funding, & investment, and more and has a midsize team.The company was established in 2023.
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    Industries

  • 5
    (53 Reviews) 4.9

    Timeliness

    4.9

    Service Excellence

    4.9

    Value

    4.9

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    London, England
    Task Virtual is a SEO company. The midsize Kolkata, India-based firm was founded in 2016. Their services include Search Engine Optimization, Back Office Outsourcing, Social Media Marketing, Content Marketing, and more.
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    Industries

  • 6
    (1 Reviews) 0.5

    Timeliness

    0.5

    Service Excellence

    1.0

    Value

    3.0

    Would Recommend

    0.5
    $1,000+
    250 - 999 employees
    London, England

    CALLCARE is a midsize call center service launched in 1998. Their services include voice services and non-voice bpo/back office services. The company is based in London, United Kingdom.

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    Industries

  • 7
    (4 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    4.9

    Would Recommend

    5.0
    $5,000+
    10 - 49 employees
    London, England

    Legalytech LLC, a corporate law company, is in Sheridan, Wyoming; London, United Kingdom and Port of Spain, Trinidad and Tobago. The small team offers corporate law, internet & technology law, intellectual property law, IT strategy consulting, and more and was launched in 2017.

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    Industries

  • 8
    (1 Reviews) 4.5

    Timeliness

    4.5

    Service Excellence

    5.0

    Value

    4.0

    Would Recommend

    5.0
    Undisclosed
    10 - 49 employees
    Harlow, England
    Answering service Medical PA was launched in 2005. The small team offers call center services, customer service outsourcing, and back office outsourcing. The company is in Harlow, United Kingdom.
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    Industries

  • 9
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $50,000+
    250 - 999 employees
    London, England
    Data Annotation Services company DataEntryIndia.in was established in 1999. The firm provides Data Annotation Services, Market Research, BI & big data consulting & SI, Back Office Outsourcing, and more and has a midsize team.
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    Industries

  • 10
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    10,000+ employees
    London Office, England
    EClerx is a large custom software development firm founded in 2000. Their team offers Custom Software Development and Back Office Outsourcing.
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    Industries

  • 11
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $5,000+
    1,000 - 9,999 employees
    London, England

    Hi-Tech BPO is a BPO company founded in 1992. Based in Ahmedabad, India, they have additional offices in Santa Clara, Calif., New York and London. The team of 5 employees specializes in non-voice BPO/Back office services, market research and BI & Big data consulting & SI.

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    Clients

    Siemens Pfizer Westfield TIBCO

    Industries

  • 12
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    Griffith, Australia
    Ask Datatech, a Back Office Outsourcing company, is in Surrey, Canada and Chicago, Illinois. Their services include Back Office Outsourcing and Market Research.
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    Industries

  • 13
    (3 Reviews) 4.2

    Timeliness

    4.0

    Service Excellence

    4.2

    Value

    4.2

    Would Recommend

    4.0
    $1,000+
    250 - 999 employees
    London, England

    Morae Global is a legal consulting and solution providing firm that has offices in Hong Kong, Switzerland, Banglore, India, London, Washington, DC, and New York City. Founded in 2005, Morae Global's team of 133 employees offers non-voice BPO/ back office services, and voice/call center solutions to their clients.

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    Industries

  • 14
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    1,000 - 9,999 employees
    London , England
    Integreon, a large Back Office Outsourcing company, is headquartered in New York, New York and Makati, Philippines. Their services include Back Office Outsourcing and Transcription.
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    Clients

    Microsoft

    Industries

  • 15
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    London, England
    Established in 2017, MultiPass, a small Back Office Outsourcing company, is based in London, England. Their services include Back Office Outsourcing.
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    Industries

  • 16
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    50 - 249 employees
    Chigwell, England
    Founded in 2011, Destiny Business Solutions Ltd is a midsize Back Office Outsourcing company. Their team provides Back Office Outsourcing and Customer Service Outsourcing.
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  • 17
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    Chertsey, England
    Legal Road Ltd is a Back Office Outsourcing company. Founded in 2010, the team provides Back Office Outsourcing and Business Consulting. The firm is located in Chertsey, England.
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  • 18
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    Epsom, England
    Premium MSP B2B Appointment Setting services is a Back Office Outsourcing and Sales Outsourcing company launched in 2023. The firm specializes in Back Office Outsourcing and Sales Outsourcing.
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  • 19
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    50 - 249 employees
    London, England
    Teamin holding is a midsize Back Office Outsourcing company established in 2020. Their services include Back Office Outsourcing and Call Center Services.
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  • 20
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    London, England
    IRecruit Tech is a Back Office Outsourcing company founded in 2016. Their team provides Back Office Outsourcing and Call Center Services.
    Read More

    Industries

  • 21
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    2 - 9 employees
    London, England
    Back Office Outsourcing and Sales Outsourcing company The Playbook Agency was launched in 2023. The team focuses on Back Office Outsourcing and Sales Outsourcing.
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    Industries

  • 22
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    250 - 999 employees
    London, England
    Adnet Global is a video production agency. The midsize London, England-based team offers Video Production and Product Design. The company was founded in 1995.
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  • 23
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    250 - 999 employees
    Wembley, England
    IT managed services company Tyleia was founded in 2022. The midsize team specializes in IT managed services and Web Development.
    Read More

    Industries

  • 24
    (0 Reviews)

    Not yet reviewed.

    $25,000+
    1,000 - 9,999 employees
    Harrow, England
    IT strategy consulting company Changepond Technologies Private Limited was established in 2000. The agency specializes in IT strategy consulting and IT managed services.
    Read More

    Industries

  • 25
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    10 - 49 employees
    London , England
    Founded in 2018, Call Vidia is a Customer Service Outsourcing company. The company offers Customer Service Outsourcing and Back Office Outsourcing, and is small.
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  • 26
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Rickmansworth, England
    Based in Rickmansworth, United Kingdom and Ahmedabad, India, Eximious Global is a back office outsourcing company. They specialize in back office outsourcing, finance & accounting outsourcing (FAO), accounting, staffing, and more and were founded in 2017.
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    Industries

  • 27
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    Harlow, England
    Established in 2004, Zebra Connexions Ltd is an answering service. The small team specializes in Call Center Services and Back Office Outsourcing.
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    Industries

  • 28
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    2 - 9 employees
    LONDON, England
    Turnaround Hospitality, a Business Consulting company, is based in LONDON, England. Their services include Business Consulting and Back Office Outsourcing.
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    Industries

  • 29
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    50 - 249 employees
    Sutton, England
    Tellida is a midsize Colombo, Sri Lanka-based Finance & Accounting Outsourcing (FAO) company. The team focuses on Finance & Accounting Outsourcing (FAO) and Back Office Outsourcing.
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  • 30
    (1 Reviews) 4.5

    Timeliness

    5.0

    Service Excellence

    4.5

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    1,000 - 9,999 employees
    San Jose, CA

    LiveHelpIndia is a back office outsourcing company founded in 2006. They are headquartered in San Jose, California and have a midsize team. Their services include back office outsourcing, customer service outsourcing, and sales outsourcing.

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    Industries

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