Top Call Center Services & Voice Services in London
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Featured
What are Featured Providers?
$1,000+$50 - $99 / hr10 - 49Serves London, EnglandServices provided
See all 20 projectsVirtual Sales Limited is a telemarketing and outbound call center service provider specializing in customer growth and lead generation. Their reviews highlight their consistent delivery and impressive industry knowledge, with 100% of reviewers praising their project management and communication skills. Clients report high satisfaction with the quality of meetings booked and the seamless integration into their sales processes.
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$1,000+< $25 / hr50 - 249London, England
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See all 67 projectsA-SALES AB is a company specializing in outbound sales generation and telemarketing services. They consistently receive positive feedback for their tailored, data-driven approach, maintaining an average of 10–20 qualified meetings monthly. Their project management is praised for reliability and precision, reflected in 100% of reviews noting timely deliverables and effective communication. Their deep understanding of client industries and commitment to success are frequently highlighted.
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$1,000+< $25 / hr50 - 249London, England
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See all 134 projectsSalesAR is a lead generation company specializing in Contact Center Services, offering solutions such as Appointment Setting and Customer Support Services. With positive reviews highlighting their effective communication, strategic updates, and impressive engagement, SalesAR has consistently delivered results, with approximately 85% of reviewers praising their ability to meet client needs and generate qualified leads. Their services have facilitated market expansion and enhanced client outreach strategies.
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$1,000+< $25 / hr50 - 249London, England
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See all 65 projectsTask Virtual is a company specializing in Customer Support Services and Inbound Call Center solutions. The reviews highlight their seamless integration into existing operations, professionalism, and commitment to improving client workflows. Approximately 95% of feedback emphasizes their responsiveness and efficiency, while around 90% praise their ability to blend empathy with telephonic support, enhancing patient and customer experiences.
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UndisclosedUndisclosed2 - 9London, England
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See all 5 projectsThe AI Edit is a strategic consulting firm specializing in AI education, lead generation strategies, and business growth systems. Across all reviews, 100% of clients highlighted their expertise in AI integration and excellent project management, with notable praise for their depth of knowledge and timely, supportive communication. The AI Edit consistently demonstrates a comprehensive and adaptable approach, helping clients enhance AI fluency and operational efficiency.
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$1,000+$50 - $99 / hr10 - 49Horsham , England
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See all 20 projectsVirtual Sales Limited is a telemarketing and outbound call center service provider specializing in customer growth and lead generation. Their reviews highlight their consistent delivery and impressive industry knowledge, with 100% of reviewers praising their project management and communication skills. Clients report high satisfaction with the quality of meetings booked and the seamless integration into their sales processes.
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$10,000+Undisclosed50 - 249Theale, England
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See all 3 projectsClarify is a strategic business development and market entry consultancy that specializes in lead generation, sales pipeline development, and market analysis for fintech and enterprise clients. Across their reviews, 100% of clients praise Clarify's timely delivery, effective communication, and detailed documentation. Their expertise in generating qualified opportunities and providing market insights is consistently highlighted, with no major areas for improvement noted by clients.
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$1,000+< $25 / hr250 - 999London, England
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See all 26 projectsSimply Contact is a distinguished provider of Contact Center Services and Customer Support Services, recognized for managing inbound and outbound customer interactions across multiple languages and channels. Reviews highlight their expertise in delivering exceptional service, with 100% of clients noting impressive project management and communication. Approximately 90% of reviews emphasize their ability to enhance customer satisfaction and streamline support systems, underscoring their reliability and adaptability.
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$25,000+$300+ / hr50 - 249City of London, England
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See all 1 projectsOpus Technology is a managed IT services provider specializing in IT asset management, telephony, Microsoft stack, connectivity, and cybersecurity. Their reviews reflect overwhelmingly positive feedback, with clients particularly appreciating their professionalism, innovative approach, and effective project management. Approximately 100% of reviewers highlight the team's ability to reduce internal burdens and provide reliable, secure systems.
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$10,000+Undisclosed50 - 249London, England
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Inside Sales Solutions is a Sales Outsourcing company. The St. Petersburg, Florida-based firm focuses on Sales Outsourcing and Demand Generation Marketing.
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$5,000+Undisclosed250 - 999Fleet, England
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See all 23 projectsmemoryBlue is a company offering Contact Center Services, specializing in Outbound Call Center and Telemarketing Services. The reviews reveal a high level of customer satisfaction, with approximately 90% of feedback highlighting their effective lead generation and meeting booking capabilities. A notable 80% of reviewers commend their skilled and responsive team, emphasizing their capability to adapt to client needs efficiently.
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$1,000+< $25 / hr1,000 - 9,999London, England
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See all 4 projectsQuantanite is a company specializing in transcription, data entry, and menu programming services, often supporting companies in scaling their operations. Across multiple reviews, Quantanite is praised for its high-quality work, efficiency, and ability to integrate seamlessly with client teams, with over 90% of feedback indicating satisfaction with their services. Clients highlight their technical capabilities and flexibility, with no significant areas for improvement mentioned.
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$1,000+$300+ / hr2 - 9London, England
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See all 27 projectsFriday Solved is a sales strategy consultancy specializing in building and optimizing sales pipelines and lead generation. Reviews consistently highlight their effective project management, with 100% of clients noting their communicative and adaptable approach. Clients appreciate their culture fit and alignment with company values, and 90% of reviewers praise their unique ability to integrate seamlessly with client teams while delivering measurable success.
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$1,000+$50 - $99 / hr10 - 49Fitzrovia, England
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See all 26 projectsGLO is a digital marketing agency specializing in lead generation, web development, and SEO services. Across numerous reviews, clients praise GLO for their effectiveness in improving online lead generation, reducing cost-per-lead, and enhancing digital presence. Highlights include a significant increase in business inquiries and high customer satisfaction with project management and communication. Approximately 90% of clients report positive experiences, often citing GLO's expertise and professionalism.
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UndisclosedUndisclosed50 - 249London, England
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See all 4 projectsAbacus Cambridge Partners is a company specializing in Contact Center Services and Customer Support Services, including Inbound and Outbound Call Centers. Reviews highlight their adaptability, with 100% of feedback emphasizing their proactive nature and strong team dynamics. Their agents are praised for maintaining professionalism and patience, while management's responsive communication ensures effective project outcomes.
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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
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See all 2 projectsMinistry of Innovation is a digital marketing agency specializing in promoting educational courses through paid advertising campaigns, utilizing platforms such as Google Ads, Meta Ads, LinkedIn Ads, and email marketing. The company receives overwhelmingly positive feedback, with clients highlighting their tailored approach, timely delivery, and effective communication. In all reviews, 100% praised their personalized commitment and ability to meet or exceed project goals.
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$5,000+$50 - $99 / hr10 - 49London, England
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See all 10 projectsCurral is a Contact Center Services provider specializing in customer support initiatives such as telephonic and LinkedIn outreach. Feedback indicates a high satisfaction rate, with 100% of reviewers praising their professional approach and effective communication, highlighting their openness and responsiveness in project management. Overall, clients are pleased with the results delivered by Curral.
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$5,000+$50 - $99 / hr10 - 49London, England
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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 lead generation and marketing effectiveness consultancy highly regarded for its expertise in developing and executing comprehensive outreach campaigns. Clients consistently praise incite for its ability to expand business opportunities, as evidenced by a notable trebling of international networks for one client. Approximately 80% of reviewers commend incite's strategic approach and impressive results, highlighting their professionalism and adaptability in managing diverse client needs. Some suggest broader service offerings could enhance their already substantial value.
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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
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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 - 9,999London, England
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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
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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, a company specializing in call center services, provides inbound call handling and customer support for medical practices. Feedback highlights their professionalism and efficiency, with 80% of reviewers praising their time-saving service and quick email responses. However, 20% mentioned issues with call transfers, suggesting room for improvement in this area. Overall, they are recommended for effective telephonic support.
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$5,000+$100 - $149 / hr2 - 9London, England
Services provided
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 - 49London, England
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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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$1,000+< $25 / hr1,000 - 9,999London, England
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See all 1 projectsLiveHelpIndia provides 24/7 live chat customer support, including voice and text-based virtual assistants, and human agents. Their services have significantly improved customer satisfaction scores to 90% and helped reduce operational costs. The feedback highlights their professional communication, timely delivery, and alignment with clients' values and budget, suggesting a strong cultural fit.
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UndisclosedUndisclosed50 - 249London, England
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See all 1 projectsTIPi Group is a digital agency specializing in web design and development, with a focus on creating and maintaining WordPress websites. While 100% of the reviewers highlight their impressive web design skills and attention to detail, about 50% of feedback indicates a need for improvement in transparency and communication during project management.
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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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$250,000+< $25 / hr1,000 - 9,999London, England
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See all 1 projectsAbacus Outsourcing is a leading global business process outsourcing services provider empowering businesses and enabling growth worldwide. Harnessing our extensive global reach and local presence,
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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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$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+$50 - $99 / hr10 - 49London, England
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Emerald Chauffeurs is a Sales Outsourcing company. The London, England-based team offers Sales Outsourcing and Call Center Services.
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$1,000+$25 - $49 / hr10 - 49London, England
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Customer Service Outsourcing company 3C Online 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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List of the Top 15 London Call Center Companies & Voice Services
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$1,000+< $25 / hr50 - 249London, England
Ability to deliver
38.9/40.020/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
10% Call Center Services80% Sales Outsourcing10% Other -
$1,000+< $25 / hr50 - 249London, England
Ability to deliver
38/40.020/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
10% Call Center Services60% Sales Outsourcing30% Other -
$1,000+< $25 / hr250 - 999London, England
Ability to deliver
36/40.016.4/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
35% Call Center Services65% 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 -
$25,000+$300+ / hr50 - 249City of London, England
Ability to deliver
33.5/40.014.8/20 Reviews9.2/10 Clients & Experience9.5/10 Market PresenceService focus
30% Call Center Services70% Other -
$1,000+$300+ / hr2 - 9London, England
Ability to deliver
33.7/40.018/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
30% Sales Outsourcing70% Other -
$1,000+$50 - $99 / hr10 - 49Fitzrovia, England
Ability to deliver
35.3/40.016/20 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 -
$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
24.5/40.016.4/20 Reviews0/10 Clients & Experience8.1/10 Market PresenceService focus
100% Sales Outsourcing -
$1,000+< $25 / hr50 - 249London, England
Ability to deliver
28.2/40.017.6/20 Reviews2.2/10 Clients & Experience8.3/10 Market PresenceService focus
10% Call Center Services20% Sales Outsourcing70% Other -
$5,000+$50 - $99 / hr10 - 49London, England
Ability to deliver
27.1/40.016.6/20 Reviews6.5/10 Clients & Experience4/10 Market PresenceService focus
40% Sales Outsourcing60% Other -
UndisclosedUndisclosed2 - 9London, England
Ability to deliver
22.9/40.017.2/20 Reviews0.7/10 Clients & Experience5/10 Market PresenceService focus
100% Sales Outsourcing -
$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+$300+ / hr2 - 9London, England
Ability to deliver
27.9/40.016.2/20 Reviews6.4/10 Clients & Experience5.2/10 Market PresenceService focus
10% Sales Outsourcing90% Other -
$1,000+< $25 / hr1,000 - 9,999London, England
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
21/40.016.4/20 Reviews0/10 Clients & Experience4.6/10 Market PresenceService focus
20% Sales Outsourcing80% Other -
$100,000+$100 - $149 / hr10 - 49London, England
Ability to deliver
13.2/40.00/20 Reviews8.5/10 Clients & Experience4.7/10 Market PresenceService focus
70% Sales Outsourcing30% Other -
$1,000+< $25 / hr1,000 - 9,999London, England
Ability to deliver
16.7/40.00/20 Reviews10/10 Clients & Experience6.7/10 Market PresenceService focus
10% Sales Outsourcing90% 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 -
$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 / 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 -
$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
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.
