Top Call Center Companies for .NET

Between them, the 9 call center companies on this page cover android (7), PHP (7), web development (6) and iOS app (6). They also list work in United Kingdom and United States of America. 9 of them have written a profile you can read before you get in touch.

1. 1

   

   JeraSoft

   Mobile App Development · Web Development · iOS App · Also in United Kingdom

   JeraSoft develops billing software for telecom operators. Its platform, sold as VCS, automates rating, billing and routing for voice, messaging and connected-device businesses.

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   Why #1: In business 21+ years, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

2. 2

   

   Echo-U Ltd

   Web Development · iOS App · IT Services · Also in United Kingdom

   Echo-U Ltd is a customer contact centre founded in 2001 in Newcastle upon Tyne city centre. It describes itself as a boutique UK operation.

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   Why #2: Founded 2001 · Boutique · Placed below first here: a listing leads at most 5 rankings, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

3. 3

   

   Cybage Software Pvt. Ltd.

   Mobile App Development · Web Development · iOS App · Also in India

   Cybage Software is an outsourced product engineering and technology consulting company.

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   Why #3: Founded 1995 · Team of 7,500+ · Placed below first here: a listing leads at most 5 rankings, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

4. 4

   

   Transcom

   Web Development · iOS App · IT Services · Also in Sweden

   Transcom is a customer experience company that provides customer care, sales, technical support and collections through contact centres and home-based agents.

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   Why #4: SOC 2, professional accreditation · Team of 27,000+, as stated on its own website, read 6 Oct 2026

   Not yet on record: client reviews, vetting.

5. Also listed, not yet ranked. We hold nothing checkable on these yet that ranks them here: no client review, vetting, award, expert review, or fact stated on their own website (and on a place ranking, where they are based). They follow in order of their TrustList Score. How TrustList ranks · Get vetted, free
6. –

   

   dunnhumby

   Web Development · iOS App · IT Services · Also in United Kingdom

   dunnhumby is a customer data science company. It combines shopper data, AI and retail experience to help retailers and consumer brands understand how people buy.

   Write a review
7. –

   

   Indosoft

   Cloud · CRM

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8. –

   

   InfoCision Management Corporation

   iOS App · IT Services · Android · Also in United States of America

   InfoCision Management Corporation runs inbound and outbound contact centres for businesses and non-profit organisations.

   Write a review
9. –

   

   Lansons Communications

   Financial Services

   We partner with organisations, senior leaders and governments to transform reputations and change behaviours for the benefit of individuals and society

   Write a review
10. –

    

    SYKES

    Web Development · IT Services · Web Design · Also in United States of America

    SYKES, formally Sykes Enterprises, Incorporated, provides multichannel demand generation and customer engagement services.

    Write a review

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