Top Call Center Services & Voice Services in London
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Featured
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$1,000+< $25 / hr250 - 999Serves London, EnglandServices provided
See all 26 projectsSimply Contact is a professional contact center services company specializing in inbound and outbound call handling, customer support services, and telephonic support across various languages and channels. Reviews indicate a remarkable satisfaction rate, with over 95% of feedback being positive, highlighting their efficiency, adaptability, and exceptional customer care services. Notably, Simply Contact achieved a 30-45% increase in customer satisfaction scores for multiple clients.
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$1,000+< $25 / hr50 - 249Ed, Sweden
Services provided
See all 62 projectsA-SALES AB specializes in outbound sales and lead generation services. With a strong emphasis on creating tailored outreach campaigns, the company consistently delivers measurable results, averaging 10-22 qualified meetings per month for various clients. Client feedback is overwhelmingly positive, with 100% of reviewers highlighting A-SALES AB's precision targeting and reliable project management, while none reported areas for significant improvement.
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$1,000+< $25 / hr50 - 249London, England
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See all 124 projectsSalesAR is a company specializing in Contact Center Services with a focus on lead generation and appointment setting. The company has received predominantly positive feedback, with approximately 90% of reviewers praising their effective communication, strategic adaptability, and customer-centric approach. Around 75% of reviews highlight their proficiency in setting up qualified leads and entering new markets.
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$5,000+$150 - $199 / hr10 - 49London, England
Services provided
See all 32 projectsnovi.digital is a digital marketing agency specializing in SEO and PPC management. Their reviews reflect a high level of client satisfaction, with approximately 90% highlighting their professionalism, expertise, and dedication to understanding client needs. Clients report significant improvements in website traffic, conversion rates, and return on investment, with many appreciating their tailored approach and strong communication. Areas for improvement are minimal, with occasional mentions of reporting issues.
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$5,000+Undisclosed2 - 9London, England
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See all 11 projectsSpring Drive is a lead generation and outbound marketing agency known for its expertise in crafting personalized outreach strategies and booking high-quality meetings. Across the reviews, 100% of clients praised their proactive project management and effectiveness in generating leads, while several highlighted Mohan's deep expertise and valuable strategic input. Overall, clients consistently appreciate Spring Drive's professionalism, reliability, and creative approach to outreach campaigns.
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$1,000+$100 - $149 / hr10 - 49Horsham , England
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See all 15 projectsVirtual Sales Limited is a company specializing in Contact Center Services, providing exceptional outbound call services and lead generation. They receive overwhelmingly positive feedback, with reviewers highlighting their impressive call outputs, efficient project management, and ability to meet objectives swiftly. Notably, 100% of reviewers praised their responsiveness and professionalism, emphasizing their seamless integration with client teams and significant impact on business growth.
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$1,000+< $25 / hr50 - 249London, England
Services provided
See all 54 projectsTask Virtual is a company specializing in back office and telephonic support services, particularly in medical billing. Reviews indicate that they excel in delivering quality work promptly and have significantly increased customer acquisition, saving clients about 20 hours weekly and $200 monthly. Positive feedback is prevalent, though clients suggest more frequent updates.
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$5,000+Undisclosed250 - 999Fleet, England
Services provided
See all 23 projectsmemoryBlue - formerly Operatix, specializes in outbound call center services, offering sales development and generating qualified leads. Reviewers consistently praise the company's knowledge, responsiveness, and ability to adapt to changing client needs. Approximately 85% of reviews highlight their effectiveness in booking sales meetings and lead generation, while some note areas for improvement in team stability and internal best practices sharing.
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$1,000+< $25 / hr1,000 - 9,999London, England
Services provided
See all 4 projectsQuantanite is a service provider specializing in data transcription, menu programming, and support staffing. The company consistently receives high praise for its efficiency, flexibility, and ability to integrate seamlessly with clients' teams. Reviews show a 100% positive satisfaction rate, highlighting their strong candidate pool and capacity to meet productivity expectations consistently. Quantanite's adaptability and commitment to exceeding client needs are recurrent themes across feedback.
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$1,000+$300+ / hr2 - 9London, England
Services provided
See all 27 projectsFriday Solved is a sales strategy and business development consultancy renowned for building scalable and effective sales engines for clients across various industries. Reviews indicate a 100% positive feedback rate, highlighting Friday Solved's excellent project management, responsiveness, and exceptional cultural fit. Notably, 87% of reviews commend the company's tailored solutions and transformative impact on clients' sales strategies, with many emphasizing their impressive work ethic and dedication.
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$1,000+$50 - $99 / hr10 - 49Fitzrovia, England
Services provided
See all 26 projectsGLO is a digital marketing agency specializing in lead generation, website design, and online advertising, including Google Ads and social media marketing. The reviews reflect a highly positive reception, with recurring themes of professionalism, effective communication, and timely delivery. Approximately 100% of clients appreciated GLO's expertise, with many highlighting significant improvements in lead generation and cost efficiency. Several reviews specifically commend John and his team for their responsiveness and impactful results.
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UndisclosedUndisclosed50 - 249London, England
Services provided
See all 4 projectsAbacus Cambridge Partners excels in Contact Center Services, specializing in Customer Support Services including inbound and outbound call handling. They maintain a professional environment with well-educated, adaptable agents. Their quick adaptability and positive work culture are frequently praised, although response times occasionally exceed expectations. Overall, they receive positive feedback for their service quality and team dynamics.
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$1,000+< $25 / hr2 - 9London, England
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See all 6 projectsCallpalooza is a lead generation and sales development company known for its effective B2B lead sourcing and outreach services. They have consistently received positive feedback, with over 90% of reviewers praising their timely communication and cultural alignment. Customers commend their project management and value for money, with particular emphasis on their ability to adapt strategies to meet client needs.
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$1,000+$100 - $149 / hr10 - 49London, England
Services provided
See all 2 projectsMinistry of Innovation is a marketing agency specializing in course promotion through digital advertising and direct communication strategies. Reviews highlight their tailored approach, exemplary project management, and strong client engagement, with no noted areas for improvement. They exceeded enrollment targets for clients, demonstrating their effectiveness, with 100% of reviewers praising their responsiveness and commitment.
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$5,000+$50 - $99 / hr10 - 49London, England
Services provided
See all 4 projectsLialoom is a company specializing in sales process optimization and lead generation. Across various reviews, clients highlight Lialoom’s effective strategy development, tailored solutions, and attention to detail, with approximately 90% of reviews expressing satisfaction with their services. Clients commend their ability to significantly enhance sales performance and generate quality leads, while also noting their proactive project management and responsiveness.
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$5,000+$100 - $149 / hr10 - 49Kingston Upon Thames, England
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See all 4 projectsIncite is a marketing effectiveness consultancy specializing in lead generation and managing multi-channel outreach campaigns. Reviews indicate a high level of satisfaction, with 100% positive feedback praising their ability to understand client goals and deliver results beyond expectations. Noteworthy themes include their professional tenacity, ability to expand market reach, and maintaining excellent project management practices.
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$1,000+Undisclosed2 - 9London, England
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See all 6 projectsSimpout is a lead generation company specializing in automating outreach and sales processes for businesses across various industries. Their services have received positive feedback, with 100% of reviewers highlighting their timely project management, responsiveness, and effective communication. Clients appreciate Simpout's ability to deliver quick results and high return on investment, with several noting their campaigns exceeded expectations.
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$1,000+$300+ / hr2 - 9London, England
Services provided
See all 5 projectsScaled is a consultancy specializing in scaling businesses by providing strategic advisory, growth planning, and process optimization services. The company consistently receives positive feedback, with 100% of reviewers highlighting their expertise and impact on business growth. Clients commend Scaled for their impressive experience and effective project management, noting their ability to address complex challenges and deliver tailored solutions for scaling needs.
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$1,000+< $25 / hr1,000 - 9,999Sandy, UT
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See all 4 projectsNICE inContact is a contact center services provider specializing in inbound call center and customer support services. Overall, the reviews highlight their updated tools, strong communication, and responsive customer care services, with around 75% of reviewers mentioning the quality of their call handling and customer service. However, some feedback indicates areas for improvement in employee engagement due to high turnover.
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$1,000+$50 - $99 / hr10 - 49London, England
Services provided
See all 3 projectsCarden IT Services is a comprehensive IT support company offering services such as network management, IT hardware supply, and more. Reviewers praise their friendly, efficient service and technical expertise, with seamless workflows and effective communication noted by 100% of reviewers. While most feedback is positive, one reviewer suggested earlier escalation of issues could enhance service timeliness.
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$1,000+< $25 / hr250 - 999London, England
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See all 1 projectsCALLCARE is a UK-based contact center specializing in inbound call handling and customer care services, specifically for out-of-hours support. While their onboarding process is praised, consistent feedback highlights poor communication, with 100% of the reviewers noting significant delays in project updates and script modifications. Additionally, 100% reported dissatisfaction with staff training and pronunciation issues, indicating a need for improvement in employee preparation and client engagement.
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Undisclosed$25 - $49 / hr10 - 49Harlow, England
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See all 1 projectsMedical PA is a Contact Center Services provider specializing in customer support services, particularly managing inbound call center operations for medical clinics. The feedback highlights that 100% of reviewers appreciate their professionalism and time-saving benefits. However, a minor issue noted by some patients is the call transfer process, which occasionally results in unanswered calls.
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$5,000+$100 - $149 / hr2 - 9London, England
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See all 4 projectsMarketing Pot is a versatile marketing agency specializing in marketing audits and content creation, offering services like SEO, LinkedIn outreach, and content for websites. The agency is praised for exceeding expectations, with approximately 90% of reviews highlighting their effective project management and cost-effective strategies. Some reviewers suggest earlier interim results and industry-specific insights could enhance their already impressive service.
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$100,000+$100 - $149 / hr10 - 49Nairobi, Kenya
Services provided
BYG Advantage is a Sales Outsourcing company located in New York, New York and Singapore, Singapore. The team offers Sales Outsourcing and Marketing Strategy.
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UndisclosedUndisclosed50 - 249London, England
Services provided
See all 1 projectsTIPi Group is a web development company specializing in designing, developing, and maintaining WordPress websites. Overall feedback is positive, with the client expressing satisfaction with the final product and after-sales support, though noting a need for improved transparency and communication. Approximately 80% of the feedback centers on their impressive web design skills and attention to detail.
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$5,000+Undisclosed10,000+London Office, England
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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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$1,000+< $25 / hr250 - 999London, England
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Online Giants is a call center founded in 2013. The company offers Call Center Services and Customer Service Outsourcing.
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$250,000+< $25 / hr1,000 - 9,999London, England
Services provided
Abacus Outsourcing is a call center company. Based in Lahore, Pakistan and London, England, their team provides Call Center Services and Business Consulting.
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$1,000+$25 - $49 / hr2 - 9Uxbridge, England
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LHB Consulting, a small Sales Outsourcing company, is located in Uxbridge, England. Their services include Sales Outsourcing and Direct Marketing.
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UndisclosedUndisclosed10,000+London, England
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Webhelp, a Customer Service Outsourcing company, was established in 2000. The large team provides Customer Service Outsourcing and Call Center Services.
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$1,000+< $25 / hr1,000 - 9,999London, England
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Call center company 8x8 was founded in 1987. The team offers Call Center Services.
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$100,000+< $25 / hr1,000 - 9,999London , England
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Firstsource Solutions is a large London , England-based phone answering service. Their services include Call Center Services and Customer Service Outsourcing.
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$1,000+$25 - $49 / hr10 - 49Harlow, England
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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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UndisclosedUndisclosed50 - 249London, England
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Business Consulting and Sales Outsourcing company smartKYC was founded in 2014. The midsize team provides Business Consulting and Sales Outsourcing.
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$5,000+Undisclosed10 - 49London, England
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ProspectAware, a Sales Outsourcing company, is headquartered in London, England. They focus on Sales Outsourcing and were founded in 2009.
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UndisclosedUndisclosed50 - 249London, England
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Microtalk is a call center service. Their team is in London, England and Kolkata, India and provides Call Center Services.
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UndisclosedUndisclosed10 - 49London, England
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Bizik is a phone answering service founded in 2024. The team provides Call Center Services.
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$1,000+$25 - $49 / hr10 - 49London, England
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3C Online, a Customer Service Outsourcing company, was launched in 2015. The team specializes in Customer Service Outsourcing and Sales Outsourcing.
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$1,000+< $25 / hr10 - 49London , England
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BPO Recruit is a telephone answering service. Their small team is located in London , England and offers Call Center Services. The firm was launched in 2009.
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$1,000+Undisclosed50 - 249London , England
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TelemarketingPower.com is an answering service company. Their midsize team is located in Surry Hills, Australia and Los Angeles, California. Their services include Call Center Services.
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UndisclosedUndisclosed2 - 9London, England
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Dead Dolly Design is a Sales Outsourcing company. Located in London, England, their team provides Sales Outsourcing.
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$1,000+Undisclosed10 - 49Beckenham, England
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Gregory Micallef Associates is an IT managed services company. They offer IT managed services and Call Center Services and were launched in 1992.
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$5,000+< $25 / hr1,000 - 9,999London , England
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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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$5,000+$300+ / hr50 - 249London, England
Services provided
See all 1 projectsSalesforce provides valuable services in lead generation and project management, impressing clients with a comprehensive strategy that results in high-quality opportunities. The reviews highlight Salesforce's ability to exceed lead generation goals, deliver projects ahead of schedule, and align with clients' values, illustrating their strong reputation for effectiveness and professionalism.
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$1,000+$25 - $49 / hr10 - 49Ilford, England
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IT Sky Solutions is a Close, Nigeria-based call center company. Their services include Call Center Services.
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UndisclosedUndisclosed50 - 249London, England
Services provided
Established in 2020, Globe Call Center is an answering service company. The team offers Call Center Services and Customer Service Outsourcing and is in London, England and Islamabad, Pakistan.
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$1,000+< $25 / hr10 - 49London, England
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See all 1 projectsMedlysis – Simplifying Medical Record Retrieval & ROI Services Location: London, UK | Serving clients across the United States Description:Medlysis is a specialized third-party service
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$10,000+$100 - $149 / hr10 - 49London, England
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See all 6 projectsThe Sound Pipe Media is a mobile app development company specializing in iOS and Android platforms. They have garnered positive feedback for their flexibility, responsiveness, and ability to understand client needs, with approximately 90% of reviews highlighting their expertise and customer-centric approach. Clients commend their project management skills and unique ability to provide marketing insights alongside development services. However, some reviews mention the need for clearer initial specification agreements.
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$1,000+$25 - $49 / hr10 - 49Epsom, England
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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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UndisclosedUndisclosed250 - 999London , England
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Launched in 2012, S2W Media is a Business Consulting company. The team specializes in Business Consulting and Email Marketing and is located in New York, New York and San Francisco, California.
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$1,000+Undisclosed2 - 9London, England
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See all 13 projectsInboxxia is a lead generation and email marketing company, renowned for its high-quality, result-driven services. Across reviews, 100% of clients highlight the effective communication and impressive quality of leads, with no notable areas for improvement mentioned. Clients frequently praise Inboxxia for its professionalism, reliability, and the ability to deliver measurable outcomes that exceed expectations.
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List of the Top 15 London Call Center Companies & Voice Services
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$1,000+< $25 / hr50 - 249Ed, Sweden
Ability to deliver
39.2/40.020/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
10% Call Center Services80% Sales Outsourcing10% Other -
$1,000+< $25 / hr50 - 249London, England
Ability to deliver
37.9/40.020/20 Reviews10/10 Clients & Experience7.9/10 Market PresenceService focus
10% Call Center Services80% Sales Outsourcing10% Other -
$1,000+< $25 / hr1,000 - 9,999London, England
Ability to deliver
30.3/40.015.6/20 Reviews7.6/10 Clients & Experience7.1/10 Market PresenceService focus
20% Call Center Services20% Sales Outsourcing60% Other -
$1,000+$300+ / hr2 - 9London, England
Ability to deliver
34.5/40.018.8/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
30% Sales Outsourcing70% Other -
$1,000+$50 - $99 / hr10 - 49Fitzrovia, England
Ability to deliver
35.5/40.016.2/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
15% Sales Outsourcing85% Other -
UndisclosedUndisclosed50 - 249London, England
Ability to deliver
32/40.015.8/20 Reviews8.2/10 Clients & Experience8/10 Market PresenceService focus
10% Call Center Services10% Sales Outsourcing80% Other -
$5,000+$150 - $199 / hr10 - 49London, England
Ability to deliver
34.2/40.015.8/20 Reviews8.8/10 Clients & Experience9.5/10 Market PresenceService focus
10% Sales Outsourcing90% Other -
$1,000+< $25 / hr2 - 9London, England
Ability to deliver
25.9/40.015.8/20 Reviews6.1/10 Clients & Experience4/10 Market PresenceService focus
65% Sales Outsourcing35% Other -
$1,000+$100 - $149 / hr10 - 49London, England
Ability to deliver
28/40.016.8/20 Reviews6.3/10 Clients & Experience4.9/10 Market PresenceService focus
40% Sales Outsourcing60% Other -
$5,000+$50 - $99 / hr10 - 49London, England
Ability to deliver
27.3/40.016.8/20 Reviews6.5/10 Clients & Experience4/10 Market PresenceService focus
40% Sales Outsourcing60% Other -
$5,000+$100 - $149 / hr10 - 49Kingston Upon Thames, England
Ability to deliver
27.6/40.015.8/20 Reviews6.7/10 Clients & Experience5.2/10 Market PresenceService focus
30% Sales Outsourcing70% Other -
$1,000+Undisclosed2 - 9London, England
Ability to deliver
21.9/40.016/20 Reviews1.9/10 Clients & Experience4/10 Market PresenceService focus
70% Sales Outsourcing30% Other -
$1,000+< $25 / hr50 - 249London, England
Ability to deliver
28.4/40.017.8/20 Reviews2.2/10 Clients & Experience8.3/10 Market PresenceService focus
10% Call Center Services90% Other -
$1,000+$300+ / hr2 - 9London, England
Ability to deliver
28.3/40.016.6/20 Reviews6.4/10 Clients & Experience5.2/10 Market PresenceService focus
10% Sales Outsourcing90% Other -
$1,000+< $25 / hr1,000 - 9,999Sandy, UT
Ability to deliver
18.4/40.012.4/20 Reviews0/10 Clients & Experience6/10 Market PresenceService focus
50% Call Center Services50% Other -
$1,000+$50 - $99 / hr10 - 49London, England
Ability to deliver
26.2/40.014.6/20 Reviews5.7/10 Clients & Experience6/10 Market PresenceService focus
10% Call Center Services90% Other -
$1,000+< $25 / hr250 - 999London, England
Ability to deliver
16.3/40.01.6/20 Reviews7.6/10 Clients & Experience7.1/10 Market PresenceService focus
40% Call Center Services60% Other -
Undisclosed$25 - $49 / hr10 - 49Harlow, England
Ability to deliver
20.1/40.014.6/20 Reviews1.4/10 Clients & Experience4/10 Market PresenceService focus
35% Call Center Services65% Other -
$5,000+$100 - $149 / hr2 - 9London, England
Ability to deliver
20.6/40.016.6/20 Reviews0/10 Clients & Experience4/10 Market PresenceService focus
20% Sales Outsourcing80% Other -
$100,000+$100 - $149 / hr10 - 49Nairobi, Kenya
Ability to deliver
13.2/40.00/20 Reviews8.5/10 Clients & Experience4.7/10 Market PresenceService focus
70% Sales Outsourcing30% Other -
UndisclosedUndisclosed50 - 249London, England
Ability to deliver
18.1/40.013/20 Reviews0/10 Clients & Experience5.2/10 Market PresenceService focus
10% Call Center Services90% Other -
$5,000+Undisclosed10,000+London Office, England
Ability to deliver
7.9/40.00/20 Reviews0/10 Clients & Experience7.9/10 Market PresenceService focus
20% Call Center Services80% Other -
$1,000+< $25 / hr250 - 999London, England
Ability to deliver
7.6/40.00/20 Reviews3.6/10 Clients & Experience4/10 Market PresenceService focus
80% Call Center Services20% Other -
$250,000+< $25 / hr1,000 - 9,999London, England
Ability to deliver
7.6/40.00/20 Reviews0/10 Clients & Experience7.6/10 Market PresenceService focus
35% Call Center Services15% Sales Outsourcing50% Other -
$1,000+$25 - $49 / hr2 - 9Uxbridge, England
Ability to deliver
7.5/40.00/20 Reviews1.8/10 Clients & Experience5.7/10 Market PresenceService focus
80% Sales Outsourcing20% Other -
UndisclosedUndisclosed10,000+London, England
Ability to deliver
7.2/40.00/20 Reviews0/10 Clients & Experience7.2/10 Market PresenceService focus
23% Call Center Services15% Sales Outsourcing62% Other -
$1,000+< $25 / hr1,000 - 9,999London, England
Ability to deliver
6/40.00/20 Reviews0/10 Clients & Experience6/10 Market PresenceService focus
100% Call Center Services -
$100,000+< $25 / hr1,000 - 9,999London , England
Ability to deliver
6/40.00/20 Reviews0/10 Clients & Experience6/10 Market PresenceService focus
45% Call Center Services55% Other -
$1,000+$25 - $49 / hr10 - 49Harlow, England
Ability to deliver
5.6/40.00/20 Reviews0.7/10 Clients & Experience4.9/10 Market PresenceService focus
80% Call Center Services20% Other -
UndisclosedUndisclosed50 - 249London, England
Ability to deliver
5.5/40.00/20 Reviews0/10 Clients & Experience5.5/10 Market PresenceService focus
50% Sales Outsourcing50% Other
Latest Call Centers Articles
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How to Build a Budget for Call Center Services [With Template]
Call center costs can add up over time, so it’s important that companies establish a thorough budget plan before outsourcing.
