Top Call Center Services & Voice Services in London
15 Leaders 15 Contenders
230 Companies
List of the Top London Call Center Companies & Voice Services
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$1,000+$50 - $99 / hr10 - 49Serves London, EnglandServices provided
40% Call Center Services60% Sales OutsourcingSee all 22 projectsVirtual Sales Limited is a distinguished provider of outbound call center and telemarketing services, specializing in lead generation and appointment setting. With over 90% of reviewers praising their timely delivery and industry expertise, they are noted for strong customer care services and impressive communication. Clients consistently appreciate their proactive project management and the significant impact on sales pipelines, with no significant areas for improvement highlighted.
2 of 4 reviews are 5 stars1 new review for Call Center Services services$10,000 – $49,000 avg. project costRead 4 Recent ReviewsReviewed 4 times in the past 6 months
Virtual Sales Limited has received positive feedback from clients over the past six months, highlighting their effective lead generation and appointment-setting services. Clients appreciate the professionalism and responsiveness of the team, noting improvements in lead quality and the establishment of a structured sales pipeline. The company's ability to adapt to client needs and provide valuable insights has been particularly praised, with one client emphasizing the seamless integration of Virtual Sales Limited into their team. Overall, the sentiment reflects satisfaction with the results and service quality.Was this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients consistently highlight Virtual Sales Limited's strong value for money and competitive pricing. Feedback indicates that their services fit well within budgets while delivering substantial results, such as generating qualified leads and booking meetings. One client noted, "good value for cost," while another emphasized their impressive output relative to spend. Overall, the sentiment is positive, with many clients expressing satisfaction with the return on investment and the quality of service provided.Was this helpful?
More responsive than most other service providers
Get in TouchVirtual Sales Limited is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.Was this helpful?
1 of 1 London-based review is 5 starsUnknown avg. project cost for Call Center Services services in LondonRead Similar ReviewsLondon-based Call Center Services project highlight
Outbound Call Center Services for AI Transcription platform
5.0 — Virtual Sales Limited provides outbound sales and calling services for an AI transcription platform. The team has been tasked with helping increase the client's enterprise pipeline in the UK and Read moreWas this helpful?
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UndisclosedUndisclosed2 - 9Reigate, England
Services provided
50% Social Media Marketing20% Ecommerce Marketing20% Pay Per Click +1 service10% Sales OutsourcingBased in Reigate, England, White Bee Digital is a social media marketing company. They offer Social Media Marketing and Pay Per Click and were founded in 2020.
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$1,000+< $25 / hr250 - 999Southend-on-sea, England
Services provided
34% Call Center Services33% Customer Service Outsourcing20% Back Office Outsourcing +1 service13% Sales OutsourcingLaunched in 2010, Ventrica is an answering service company. The team offers Call Center Services and Customer Service Outsourcing.
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$1,000+$25 - $49 / hr2 - 9Farnham, England
Services provided
60% Call Center Services40% AI AgentsEstablished in 2023, Norango AI Virtual Reception is an answering service. The company specializes in Call Center Services and AI Agents.
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UndisclosedUndisclosed50 - 249Burgess Hill, England
Services provided
50% Call Center Services50% Back Office OutsourcingBDM Talk, a midsize phone answering service and Back Office Outsourcing company, is in Burgess Hill, England. The team focuses on Call Center Services and Back Office Outsourcing.
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$1,000+Undisclosed50 - 249Brighton and Hove, England
Services provided
90% Sales Outsourcing10% Email MarketingSee all 4 projectsSopro is a lead generation company that focuses on creating tailored outreach campaigns through email and LinkedIn to connect clients with potential customers across various industries. Reviews highlight their ability to deliver on-time, cost-effective solutions with impressive use of AI and personalized strategies. Approximately 100% of reviewers commend Sopro’s professionalism, communication, and significant impact on their lead generation goals.
Reviews mention Professional
Clients express a highly positive sentiment regarding Sopro's professionalism, noting their timely delivery and proactive communication. One client highlighted that Sopro's team is 'very professional and on top of everything,' which has contributed to a significant boost in their sales pipeline. Additionally, the adaptive AI messaging approach tailored to each prospect's role impressed clients, demonstrating Sopro's commitment to quality and effective lead generation.-
Email Marketing for Advanced Manufacturing & Tech Firm
5.0 Dec 2, 2025Sopro has delivered on time. The team is very professional and on top of everything. We’ve communicated via virtual meetings, emails, and messaging apps.
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Industry Experience
Sopro has received positive feedback across various industries, including pharmaceuticals, software development, security services, and manufacturing. Clients praise their expertise in lead generation, effective outreach campaigns, and tailored marketing strategies. The overall sentiment is highly favorable, highlighting Sopro's ability to deliver qualified leads, improve brand visibility, and enhance client engagement through innovative solutions. Their strengths are particularly noted in sectors requiring B2B services and technology-driven approaches, making them a strong fit for companies seeking to expand their market reach.
Read All ReviewsSelect Industry to see insights
Other industries Design ManufacturingWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients consistently praise Sopro for providing excellent value for money, highlighting their effective lead generation strategies and tailored outreach campaigns. For instance, a director of sales noted that Sopro's pricing fit their budget while delivering significant results, including a drop in cost per lead to $48. The CEO of Tessellation Software LLC also emphasized their good value for cost, reflecting a strong sentiment that Sopro's services are both affordable and impactful.Was this helpful?
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Undisclosed< $25 / hr250 - 999Aylesbury, England
Services provided
12% Financial Advising & Planning11% Accounting11% Back Office Outsourcing +6 services11% Business Consulting11% Document Digitization & Management11% Finance & Accounting Outsourcing (FAO)11% Financial Consulting11% Fractional CFO Services11% Sales OutsourcingFinancial Advising & Planning company Acorn Universal Consultancy was founded in 2014. The agency focuses on Financial Advising & Planning and Business Consulting, and is midsize.
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$25,000+Undisclosed10 - 49Brighton and Hove, England
Services provided
100% Sales OutsourcingSee all 1 projectsSecond Voice is a dynamic marketing agency specializing in targeted outbound email campaigns and AI-enhanced content. Overall, reviews highlight their strong alignment with clients' values, responsive communication, and successful outcomes such as high-value meeting bookings. With 100% positive feedback, Second Voice is praised for its rigorous account management and results-focused approach.
Industry Experience
Second Voice has demonstrated expertise primarily in the financial services sector, receiving positive feedback for their targeted outbound email campaigns and AI-enhanced content strategies. Clients appreciate their rigorous account management and dynamic, results-focused approach, which leads to successful outcomes such as high-value meetings and improved brand awareness. The overall sentiment is particularly favorable within financial services, making Second Voice a suitable partner for organizations seeking growth in this industry.
Read All ReviewsSelect Industry to see insights
Financial servicesWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients have expressed satisfaction with Second Voice's cost-effectiveness and overall value for money. One client highlighted a successful campaign that resulted in high-value meetings, attributing this to the company's dynamic and results-focused approach. Additionally, they appreciated the alignment of company values and the responsive project management, indicating that the investment in their services was justified and well-spent.Was this helpful?
Review Rating from Clients
5.0/5.0
Quality
5.0
Schedule
5.0
Cost
4.5
Willing to Refer
5.0
London-based clients praise Second Voice for their results-driven approach, especially in targeted email campaigns and AI-enhanced content. They highlight the company's responsiveness, effective project management, and ability to deliver measurable outcomes like high-value meetings and successful A/B testing.Read Local ReviewsWas this helpful?
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$1,000+< $25 / hr50 - 249Sittingbourne, England
Services provided
100% Call Center ServicesGoResponse is a midsize call center headquartered in Sittingbourne, England. The team focuses on Call Center Services.
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$10,000+$150 - $199 / hr2 - 9Bracknell, England
Services provided
20% Call Center Services20% Branding20% Digital Strategy +2 services20% Search Engine Optimization20% Web DesignSynthetic Egg is a branding company. They are located in Bracknell, England and have small team. Their team specializes in Branding and Call Center Services.
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$10,000+$50 - $99 / hr50 - 249Brighton, England
Services provided
40% Call Center Services40% Sales Outsourcing20% Customer Service OutsourcingAnswering service company The Telemarketing Company is based in Brighton, England. The team focuses on Call Center Services and Sales Outsourcing.
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$10,000+$150 - $199 / hr2 - 9West Wycombe, England
Services provided
20% Call Center Services20% Branding20% Digital Strategy +2 services20% Search Engine Optimization20% Web DesignSmall branding firm Prism Communications UK LTD, is headquartered in West Wycombe, England and Reading, England. The team specializes in Branding and Call Center Services.
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UndisclosedUndisclosed10 - 49Haywards Heath, England
Services provided
20% Branding20% Content Writing Services20% Marketing Strategy +2 services20% Sales Outsourcing20% Video ProductionBased in Haywards Heath, England, TKO Marketing Consultants is a small branding agency. Their services include Branding and Marketing Strategy.
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$1,000+$50 - $99 / hr10 - 49Liss, England
Services provided
10% Call Center Services70% IT Managed Services10% Cloud Consulting & SI +4 services5% IT Strategy Consulting2% Cybersecurity2% Other IT Consulting and SI1% Business ConsultingSyn-Star IT-Telecoms-Technology is a Liss, England-based IT managed services company. The team specializes in IT managed services and Call Center Services.
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UndisclosedUndisclosed10 - 49Brighton and Hove, England
Services provided
25% Business Consulting25% Customer Service Outsourcing25% Marketing Strategy +1 service25% Sales OutsourcingFounded in 2019, Publisher Friend is a Marketing Strategy company. The team offers Marketing Strategy and Business Consulting.
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$1,000+< $25 / hr10,000+Milton Keynes, England
Services provided
30% Call Center Services40% Back Office Outsourcing20% Customer Service Outsourcing +1 service10% Sales OutsourcingKonecta, a Back Office Outsourcing company, offers Back Office Outsourcing and Call Center Services. The agency is headquartered in Milton Keynes, England.
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$1,000+< $25 / hr10 - 49Bedford, England
Services provided
40% Recruitment Process Outsourcing30% Sales Outsourcing25% Customer Service Outsourcing +1 service5% Back Office OutsourcingCION BPO is a Recruitment Process Outsourcing company. The Cape Town, South Africa-based team offers Recruitment Process Outsourcing and Sales Outsourcing.
Read moreSee All Locations (2)Bedford, England
27 Saint Cuthbert's Street
Bedford, England MK40 3JG2 - 5
0121 630 6137
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$10,000+$150 - $199 / hr2 - 9Milton Keynes, England
Services provided
10% Call Center Services50% Search Engine Optimization40% Pay Per ClickNCube Digital, a SEO agency, is based in Milton Keynes, England. Established in 2017, the team focuses on Search Engine Optimization and Pay Per Click.
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$10,000+$150 - $199 / hr2 - 9Doddington, England
Services provided
20% Call Center Services20% Branding20% Digital Strategy +2 services20% Search Engine Optimization20% Web DesignFounded in 2010, Diztinct, a small branding company, is located in Doddington, England. Their services include Branding and Call Center Services.
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UndisclosedUndisclosed10 - 49Linton, England
Services provided
20% Call Center Services40% Cybersecurity40% IT Managed ServicesCybersecurity company Mannassi IT Solutions was launched in 1996. The firm provides Cybersecurity and IT managed services, and is small.
Read moreSee All Locations (3)Linton, England
9 Balingdon Lane
Linton, England CB21 4XE1
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$10,000+Undisclosed250 - 999London, England
Services provided
30% Call Center Services35% Email Marketing20% Marketing Strategy +2 services10% Conversion Optimization5% Sales OutsourcingMarketOne International is an Email Marketing company founded in 1998. Their services include Email Marketing and Call Center Services.
Read moreSee All Locations (8)London, England
The Building 2nd Floor 578-586 Chiswick High Road
London, England W4 5RP203.580.4000
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UndisclosedUndisclosed10 - 49Lancing, England
Services provided
40% Fulfillment40% Warehousing & Distribution10% Customer Service Outsourcing +1 service10% Sales OutsourcingUK Pick & Pack is a Fulfillment company. Their team is headquartered in Lancing, England and provides Fulfillment and Warehousing & Distribution.
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$1,000+< $25 / hr10 - 49Wembley, England
Services provided
36% Call Center Services36% Customer Service Outsourcing18% Sales Outsourcing +1 service10% Back Office OutsourcingConfero, a call center, is located in Wembley, England and London, England. Their services include Call Center Services and Customer Service Outsourcing.
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UndisclosedUndisclosed10 - 49London, England
Services provided
50% Affiliate Marketing50% Sales OutsourcingKindico Digital Marketing Agency Ltd is an Affiliate Marketing and Sales Outsourcing company founded in 2016. The team specializes in Affiliate Marketing and Sales Outsourcing.
Read moreSee All Locations (2)London, England
2 13 St Swithin's Ln
London, England EC4N 8ALWas this helpful?
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UndisclosedUndisclosed250 - 999London, England
Services provided
25% Call Center Services50% Market Research25% Back Office OutsourcingGDCC (Global Data Collection Company), a midsize Market Research company, is based in Rotterdam, Netherlands and Cincinnati, Ohio. Their services include Market Research and Call Center Services.
Read moreSee All Locations (5)London, England
6A Liverpool Road, Saint Mary's, Barnsbury
London, England N1 0PU+44 20 380 898 55
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UndisclosedUndisclosed2 - 9London, England
Services provided
20% Content Marketing20% Sales Outsourcing20% Search Engine Optimization +2 services20% Social Media Marketing20% Web DevelopmentEffortless Digital Services is a social media marketing agency. Located in London, England, the firm was launched in 2018. Their team specializes in Social Media Marketing and Content Marketing.
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$10,000+$150 - $199 / hr10 - 49London, England
Services provided
30% Call Center Services40% Transcription10% Cybersecurity +2 services10% Web Design10% Web DevelopmentSnap International is a Transcription company. They are based in London, England and have small team. Their services include Transcription and Call Center Services.
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$10,000+$150 - $199 / hr2 - 9London, England
Services provided
30% Call Center Services40% Public Relations10% Content Marketing +2 services10% Digital Strategy10% Marketing StrategyRaksha PR is a public relations company founded in 2003. The team specializes in Public Relations and Call Center Services and is based in London, England.
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$10,000+$150 - $199 / hr10 - 49London , England
Services provided
20% Call Center Services20% Branding20% Digital Strategy +2 services20% Search Engine Optimization20% Web Design3x1 Public Relations, a branding agency, focus on Branding and Call Center Services. They were founded in 2001.
Read moreSee All Locations (4)London , England
201 Borough High Street
London , England SE1 1GZ020.3817.7674
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$10,000+$150 - $199 / hr10 - 49Burgess Hill, England
Services provided
20% Call Center Services20% Branding20% Digital Strategy +2 services20% Search Engine Optimization20% Web DesignFML Public Relations is a small Burgess Hill, England-based branding agency. Their services include Branding and Call Center Services.
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UndisclosedUndisclosed2 - 9London, England
Services provided
20% Search Engine Optimization20% UX/UI Design15% BI & Big Data Consulting & SI +3 services15% Digital Strategy15% Sales Outsourcing15% Social Media MarketingEstablished in 2010, GA4-Search is a small SEO agency based in London, England. Their team provides Search Engine Optimization and UX/UI Design.
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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
37.9/40.020/20 Reviews10/10 Clients & Experience7.9/10 Market PresenceService focus
10% Call Center Services60% Sales Outsourcing30% Other -
$1,000+< $25 / hr250 - 999London, England
Ability to deliver
36.6/40.017/20 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 -
$1,000+$200 - $300 / hr50 - 249London, England
Ability to deliver
30/40.020/20 Reviews10/10 Clients & Experience0/10 Market PresenceService focus
10% Call Center Services80% Sales Outsourcing10% 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+$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 -
$1,000+$300+ / hr2 - 9London, England
Ability to deliver
33.5/40.017.8/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
30% Sales Outsourcing70% 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+< $25 / hr50 - 249London, England
Ability to deliver
28.8/40.018.2/20 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
24.5/40.016.4/20 Reviews0/10 Clients & Experience8.1/10 Market PresenceService focus
100% Sales Outsourcing -
$1,000+$100 - $149 / hr10 - 49London, England
Ability to deliver
27.6/40.016.4/20 Reviews6.3/10 Clients & Experience4.9/10 Market PresenceService focus
40% Sales Outsourcing60% Other -
$5,000+$50 - $99 / hr10 - 49London, England
Ability to deliver
27.1/40.016.6/20 Reviews6.5/10 Clients & Experience4/10 Market PresenceService focus
40% Sales Outsourcing60% Other -
UndisclosedUndisclosed2 - 9London, England
Ability to deliver
23.1/40.017.4/20 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 -
$10,000+Undisclosed50 - 249London, England
Ability to deliver
21.9/40.016.6/20 Reviews0/10 Clients & Experience5.3/10 Market PresenceService focus
75% Sales Outsourcing25% 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+$150 - $199 / hr10 - 49London, England
Ability to deliver
20.2/40.016.2/20 Reviews0/10 Clients & Experience4/10 Market PresenceService focus
100% Sales Outsourcing -
$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
20.8/40.016.2/20 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
7.8/40.00/20 Reviews0/10 Clients & Experience7.8/10 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
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