Top IT Service Providers for VOIP

Between them, the 19 IT service providers on this page cover IT services (18), web design (18), cloud (9) and android (9). They also list work in United Kingdom, Italy, United States of America and Ireland. 19 of them have written a profile you can read before you get in touch.

1. 1

   

   SISECO

   Web Development · IT Services · Web Design · Also in Italy

   SISECO designs and supplies customised IT systems for customer relationship management, contact management and telephony. It has operated since 1987.

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   Why #1: Founded 1987 · ISO 9001, as stated on its own website, read 6 Oct 2026

   Not yet on record: client reviews, vetting.

2. 2

   Q

   Quadratix

   Microsoft Dynamics 365 · Web Development · Web Design · Also in United Kingdom

   Quadratix is an IT services company founded in 2008. It looks after the IT of businesses in and around Bath, Bristol and Cardiff, and holds ISO 27001 certification.

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   Why #2: Founded 2008 · ISO 27001, as stated on its own website, read 6 Oct 2026

   Not yet on record: client reviews, vetting.

3. 3

   E

   eXpd8

   Microsoft Dynamics 365 · Web Development · IT Services · Also in Ireland

   eXpd8 is an IT services company founded in 1986. Its stored profile describes a focus on solicitors and other small to medium-sized professional businesses.

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   Why #3: Founded 1986, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

4. =4

   AO

   Access One, Inc.

   Microsoft Dynamics 365 · Web Development · IT Services · Also in United States of America

   Access One, Inc. is a business technology and communications provider founded in 1993.

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   Why #4 (shared): Founded 1993, as stated on its own website, read 6 Oct 2026

   Not yet on record: client reviews, vetting.

5. =4

   CV

   Charterhouse V&D

   Web Development · IT Services · Web Design · Also in United Kingdom

   UK provider of secure networking, communications, collaboration and cyber security services for public and private organisations

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   Why #4 (shared): In business 33+ years, as stated on its own website, read 6 Oct 2026

   Not yet on record: client reviews, vetting.

6. 6

   ET

   Enable Technologies

   Web Development · IT Services · Web Design · Also in United Kingdom

   Enable Technologies supplies software and IT services to businesses across Europe and has done so since 1994.

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   Why #6: Founded 1994, as stated on its own website, read 6 Oct 2026

   Not yet on record: client reviews, vetting.

7. 7

   IN

   Infopact Netwerk & Communicatie

   Web Development · IT Services · Software Development · Also in Netherlands

   Infopact Netwerk & Communicatie supplies business network and connectivity services from a head office in Rotterdam.

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   Why #7: In business 30+ years, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

8. 8

   

   Equiinet

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

   Equiinet is a telecommunications company that provides phone and network services to businesses.

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   Why #8: Founded 1998, as stated on its own website, read 6 Oct 2026

   Not yet on record: client reviews, vetting.

9. =9

   

   Foehn

   Web Development · IT Services · Web Design · Also in United Kingdom

   Foehn is a cloud communications provider, now called Kerv Experience, with a history of IP telephony and contact centre work.

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   Why #9 (shared): Founded 2000, as stated on its own website, read 6 Oct 2026

   Not yet on record: client reviews, vetting.

10. =9

    V

    Viatel

    Web Development · IT Services · Web Design · Also in Ireland

    Viatel is a technology services company, based in Ireland, that supplies managed networking, cloud, security and communications.

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    Why #9 (shared): In business 26+ years, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

11. =9

    

    Viatel

    Web Development · IT Services · Web Design · Also in Ireland

    Viatel is an Irish technology services company. It runs its own data centre in Dublin and a communications network across the country.

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    Why #9 (shared): In business 26+ years, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

12. 12

    

    TSI

    Web Development · IT Services · Web Design · Also in United Kingdom

    TSI provides business communications technology in the UK, selling largely through channel partners.

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    Why #12: In business 25+ years, as stated on its own website, read 6 Oct 2026

    Not yet on record: client reviews, vetting.

13. 13

    ND

    Net DirXions Inc.

    Microsoft Dynamics 365 · Web Development · IT Services · Also in United States of America

    Boston managed IT provider offering help desk support, hosted phone systems and cloud services to small and medium businesses

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    Why #13: In business 20+ years, as stated on its own website, read 6 Oct 2026

    Not yet on record: client reviews, vetting.

14. 14

    CS

    Connected Systems

    Web Development · IT Services · Web Design · Also in United Kingdom

    Connected Systems provides IT support, outsourcing and installation services to education and small businesses in Nottingham

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    Why #14: In business 16+ years, as stated on its own website, read 6 Oct 2026

    Not yet on record: client reviews, vetting.

15. 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
16. –

    

    Agilium Labs

    Artificial Intelligence - AI · Web Development · IT Services · Also in Russia

    Agilium Labs is a software development company that suits technically complex projects. It organises its work into specialised teams and describes its approach as agile.

    Write a review
17. –

    

    E-tna Solutions S.r.l.

    Web Development · IT Services · Web Design · Also in Italy

    Information and communication technology company offering consulting, outsourcing, CRM and software integration for telecoms

    Write a review
18. –

    

    Impact I.T & Risk Services (PTY) Ltd

    Web Development · IT Services · Web Design · Also in South Africa

    Impact I.T & Risk Services (PTY) Ltd is a managed IT services provider supporting growing businesses.

    Write a review
19. –

    

    NetResults Srl

    Web Development · IT Services · Web Design · Also in Italy

    NetResults Srl designs and deploys converged communication networks.

    Write a review
20. –

    

    System Management S.p.A.

    Artificial Intelligence - AI · Web Development · IT Services · Also in Italy

    System Management S.p.A. is an Italian company in information and communication technology.

    Write a review

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