The demand for business process outsourcing (BPO) in London has grown significantly, with UK businesses increasingly turning to expert third parties to handle essential yet time-consuming operations. According to industry data, the UK outsourcing market is valued at over £9 billion, with London being a hub for both global and local BPO providers.
This shift is driven by a desire to reduce costs, scale operations, and gain access to specialist support. In this blog, we explore what makes BPO services essential and introduce you to the top-rated BPO companies in London based on client reviews and verified industry insights.
Top 10 BPO Companies in London
1. Capita plc
Capita is Britain’s largest business process outsourcing and professional services provider, headquartered in London, offering a broad range of BPO solutions including customer service, back‑office administration, digital transformation and HR support.
Established in 1984, it serves both public sector clients (including government departments) and private businesses, simplifying complex operations with scale and technology‑enabled services.
Capita’s expertise spans workforce services, customer experience automation and large‑scale outsourcing contracts across the UK and Europe. It leverages AI and digital tools to improve service delivery and operational efficiency.
- Website: https://capita.com
- Address: 2 Kingdom Street, First Floor, London, England W2 6BD, UK
2. Helpware
Helpware is a global People‑as‑a‑Service outsourcing provider known for delivering tailored BPO solutions, particularly in customer support, back‑office processes, and scaling support teams for modern businesses.
With high client ratings and a proactive service culture, Helpware builds dedicated teams that feel like an extension of your own workforce, enhancing operational efficiency and customer satisfaction. Its teams are praised for communication, professionalism and adaptability to evolving client needs.
- Website: https://www.helpware.com
- Email: hello@helpware.com
- Address: 6 Market Place, Fitzrovia, London, W1W 8AF
3. Virtually There
Virtually There specialises in virtual office and professional support services, offering virtual receptionist, call answering and business address services that help small businesses, start‑ups and entrepreneurs work more efficiently and present a professional image.
Their London‑based solutions are tailored to growing businesses needing reliable support without the cost of full‑time staff. Known for flexibility and personalised service, Virtually There enables remote and hybrid business operations.
- Website: https://virtually‑there.net
- Phone: 020 3476 7792
- Email: team@virtually-there.net
- Address: 4th Floor, Silverstream House, 45 Fitzroy St, Fitzrovia, London W1T 6EB, UK
4. Williams Lea
Williams Lea is a long‑established outsourcing and business support firm, providing tech‑enabled administrative, document and back‑office services alongside creative and digital process support to global clients.
With roots back to the 19th century, the company helps organisations streamline operations, enhance productivity, and transform complex workstreams. Its services include business process transformation and workplace support across multiple sectors.
- Website: https://www.williamslea.com
- Address: 30 Old Broad St, London EC2N 1HT
5. Teleperformance
Teleperformance is a global leader in business process outsourcing, known for delivering high‑quality customer experience and digital integrated business solutions. With a strong presence in the UK and a longstanding reputation worldwide, Teleperformance supports clients across industries with customer care, technical support, analytics, back‑office processing, and multilingual services.
Its operations leverage advanced technology, automation and data‑driven insights to improve service delivery and operational efficiency. The company is also recognised for its focus on employee engagement and robust training programmes that ensure consistent, high‑standard support.
Teleperformance’s flexible service models make it a trusted partner for both large enterprises and growing businesses looking to elevate customer satisfaction and streamline processes.
- Website: https://www.teleperformance.com
- Address: Teleperformance UK, 5th Floor, One Canada Square, Canary Wharf, London E14 5AB, UK
6. Nash Squared
Nash Squared (formerly Harvey Nash Group) is a London‑based outsourcing and digital services consultancy that combines technology talent acquisition with outsourced digital transformation and professional services.
Operating internationally with offices in multiple countries, Nash Squared supports clients with IT outsourcing, recruitment services and leadership development alongside business process support, making it a versatile partner in scaling enterprise operations.
- Website: https://www.nashsquared.com
- Address: LDN:W3 Noble Street London EC2V 7EE
- Phone: 020 7333 0033
- Email: info@nashsquared.com
7. Outsourcery UK
Outsourcery is a UK-based outsourcing partner that connects businesses with top remote talent in South Africa to deliver cost-effective, high-quality support. With over a decade of experience, they serve more than 2,000 UK companies, offering services across back-office support, virtual assistance, customer service, sales support, and marketing.
Their model is designed to cut staffing costs by up to 40% while maintaining consistency through managed HR, payroll, compliance, and replacement cover. Each Outsourcerer is fully trained, IARSP-certified, and supported by local account managers in the UK.
The company is GDPR compliant and prioritises data security and professional standards. Outsourcery is ideal for SMEs looking for flexible, reliable, and long-term outsourcing solutions.
- Website: https://outsourcery.uk
- Address: London, UK (fully remote operation)
- Email/Phone: Via contact form on website
8. Ansafone Contact Centres
Ansafone is a provider of contact centre and business process outsourcing services, delivering inbound and outbound customer care, interactive voice response (IVR), bilingual support and multi‑channel communication solutions. With decades of experience, Ansafone helps organisations improve customer engagement and streamline call handling via tailored solutions designed to meet industry‑specific needs.
- Website: https://ansafone.com
- Email: contact@ansafone.com
9. TeleTech (TTEC)
TeleTech, also known as TTEC, is a global business process outsourcing and customer experience (CX) services provider that helps organisations improve customer engagement and streamline operational support.
With extensive expertise in contact centre outsourcing, digital CX, analytics, and back‑office services, TTEC supports companies across multiple sectors including technology, finance, retail, and healthcare.
The company blends human‑centric solutions with advanced technology such as AI, automation, and cloud‑based platforms to deliver scalable, efficient, and personalised customer service outcomes.
Known for its strong focus on data‑driven improvements and workforce training programmes, TeleTech enables higher satisfaction and performance metrics for its partners. TTEC’s UK operations bring global best practices tailored to local business needs.
- Website: https://www.ttec.com
- Phone: 020 7065 2200
- Email: info@ttec.com
- Address: Salisbury House, 29 Finsbury Circus, London EC2M 5QQ
10. Serco Group plc
Serco is a major British multinational that offers outsourcing across a wide range of sectors including customer services and operational support, often integrating BPO elements into government, health, transport and justice services. With a London office and broader UK headquarters, Serco brings scale, experience and extensive public‑sector BPO capabilities.
- Website: https://www.serco.com
- Phone: +44 (0)1256 745900
- Email: generalenquiries@serco.com
- Address: 4th Floor, 100 Victoria Street, London, Greater London, SW1E 5JL
Why BPO Is Important for UK Businesses?
Business process outsourcing allows companies to contract specific tasks such as customer service, administrative support, or IT helpdesk to third-party specialists. For businesses in London, this model offers significant advantages.
It reduces operational strain, improves service delivery, and enables internal teams to focus on strategic priorities. Whether you’re a start-up managing rapid growth or a large enterprise aiming to optimise resources, outsourcing can help align daily operations with long-term goals.
How Do London BPO Providers Deliver Value?
London-based BPO companies offer more than just cost savings. They deliver trained professionals, scalable service models, and structured workflows that enhance efficiency.
Many providers use a mix of automation tools and human expertise, ensuring that services like data entry, customer support, and back-office administration run smoothly. Additionally, London BPOs are well-versed in compliance with UK regulations such as GDPR, which is a crucial factor when outsourcing data-related tasks.
What Services Are Commonly Outsourced in London?
While customer service remains a major area of outsourcing, London-based BPO firms handle a wide variety of business functions. These include virtual receptionist services, contact centre operations, email and chat support, payroll processing, and IT infrastructure support.
Some firms specialise in sector-specific outsourcing, such as legal process outsourcing (LPO), healthcare back-office services, or financial data processing offering tailored solutions that align with industry needs.
What Should You Look for When Choosing a BPO Company?
Finding the right outsourcing partner in London starts with understanding your own needs. You should look for a provider that not only has relevant experience but also shares your business values and communication style.
Explore client reviews, case studies, and past project outcomes to evaluate performance. A strong BPO firm will offer transparent pricing, custom solutions, measurable service levels, and a willingness to adapt as your business grows.
How Are London’s BPO Companies Rated and Reviewed?
Most top BPO providers in London are featured on platforms like Clutch and GoodFirms, where they are reviewed based on service quality, responsiveness, and customer satisfaction.
High ratings often highlight a provider’s ability to meet deadlines, deliver consistent results, and maintain clear communication. Real-world testimonials from businesses in various sectors give you a reliable picture of what to expect in a long-term partnership.
What Are the Trends in the UK BPO Industry?
The UK BPO landscape is shifting with technological advances and changing business models. Automation, AI-assisted support systems, and remote working solutions are now standard among many providers.
Businesses are also placing greater emphasis on specialist BPO support for analytics, cybersecurity, and multilingual customer service. The post-pandemic focus on digital transformation has further accelerated demand for flexible, cloud-based outsourcing solutions especially in tech-forward cities like London.
How Can BPO Services Support Business Growth?
Outsourcing helps businesses grow by freeing up internal resources and enabling teams to focus on innovation and customer experience. For example, a London eCommerce company might outsource order fulfilment and customer support to a local BPO firm.
This move allows them to handle increasing order volumes while keeping in-house staff focused on marketing and product development. When managed well, a BPO partnership becomes an extension of your own business delivering both stability and scalability.
Conclusion
Whether you’re a growing start-up or a well-established organisation, outsourcing to one of the top BPO companies in London can provide your business with a critical advantage.
These firms bring expertise, scale, and operational efficiency all tailored to meet the needs of the modern business environment. By choosing the right partner, you can unlock new levels of productivity and focus more resources on what truly matters: growing your business.
FAQs About BPO Companies in London
What exactly does a BPO company do?
BPO companies manage business functions such as customer service, administration, or IT support on behalf of other businesses.
Can small businesses benefit from outsourcing?
Absolutely. Many London-based BPOs cater to start-ups and SMEs by offering flexible service packages and scalable support.
Are these services affordable in the UK?
Yes. London’s competitive BPO market means companies can find cost-effective outsourcing without sacrificing quality.
What should I ask a BPO provider before signing a deal?
Discuss their experience in your sector, request case studies, clarify service-level agreements (SLAs), and ensure GDPR compliance.
Do BPO companies offer trial periods or pilots?
Some providers do offer short-term pilots or proof-of-concept phases to test service quality before committing to a full contract.
How secure is my business data with a BPO partner?
Reputable BPO firms in London adhere to strict data protection standards, including GDPR, and use secure systems for data handling.
Can I get 24/7 support from a UK BPO firm?
Yes, many BPOs offer round-the-clock support, particularly for customer-facing roles or IT services.