Top VoIP services companies & Best VoIP Developers in UK

Need seamless business communication with VoIP? SelectedFirms helps you find the best VoIP services companies in the UK. Professional VoIP developers design and implement scalable, high-quality communication systems for improved business efficiency. Start upgrading your communication today.
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5.0 out of 5, based on 1 real reviews.
Rankings updated: Feb 16, 2026

List of Top VoIP services companies in UK | Best VoIP Developers

Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.

18 Companies

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Acefone
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agency_climbed
Claimed by Official Representatives

38

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

38

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 100% IT Services

  • 100% Business Services

Simplifying Communication

Acefone has been serving the international communications space, catering to startups, SMBs and enterprises. Over the years, we have aided over 5,000+ global businesses improve their communication systems. Our cloud communication suite Ace-X comprises VoIP phone services, contact center solutions, APIs, video conferencing, WhatsApp messaging and much more. With it, you can; Transfer calls to another party using call transferring, call forwarding, etc. Conduct virtual meetings, collaborative discussions, or group conversations easily and efficiently with Call Conference. Keep a record of all your incoming and outgoing calls with Call Detail Records (CDR). Gain seamless access to both your mobile contacts and portal contacts with our Contacts feature. Establish instant communication with specific contacts with Click-to-call. With 55+ features and industry leading CRM integrations, the Ace-X suite helps you boost your business communication while improving customer experience, retention and lead generation.

View Acefone Profile
Inside Service Listing

N/A

Hourly Rate
Inside Service Listing

$0+

Min. Budget Size
Inside Service Listing

500 - 1,000

Team size
Inside Service Listing

UK

Location
Telappliant Ltd
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agency_climbed
Claimed by Official Representatives

38

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

38

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 100% IT Services

Telappliant Ltd is a VoIP and cloud communications service that has won numerous awards.

Telappliant Ltd is a VoIP and cloud communications service that has won numerous awards. With our simple-to-use business phone systems and connection solutions, we help small and medium-sized enterprises expand. https://shop.telappliant.com/product/netgate-8300-base-pfsense-security-gateway-appliance/

View Telappliant Ltd Profile
Inside Service Listing

N/A

Hourly Rate
Inside Service Listing

$0 - $0

Min. Budget Size
Inside Service Listing

50+

Team size
Inside Service Listing

UK

Location
Kriston Technology Limited
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agency_climbed
Claimed by Official Representatives

35

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

35

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 80% IT Services

  • 20% Digital Transformation

Smarter IT. Secure. Simple. Scalable.

At Kriston Technology, we’ve been delivering trusted IT Support to businesses across Oxfordshire, London, Buckinghamshire, Berkshire, Gloucestershire and Hertfordshire since 1998. Our 20 strong team of IT specialists work proactively to keep your systems running, data secure and your projects moving forwards. Whether it’s Digital Transformation, Microsoft 365 optimisation, Cyber Security solutions or strategic IT planning, our proven track record means you can focus on your business while we ensure your technology drives your success.

View Kriston Technology Limited Profile
Inside Service Listing

N/A

Hourly Rate
Inside Service Listing

$1+

Min. Budget Size
Inside Service Listing

20+

Team size
Inside Service Listing

UK

Location
Lyon
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agency_climbed
Claimed by Official Representatives

33

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

33

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 60% IT Services

  • 40% Cloud Computing Services

Lyon is a specialist IT and technology services provider for London's creative industry.

Lyon is a specialist IT and technology services provider for London's creative industry. With years of experience, we tackle complex security and technology challenges swiftly and efficiently. Our comprehensive services include IT support, disaster recovery, business continuity, IT governance, cloud services, and advanced cybersecurity. Our team of certified engineers is equipped to handle a wide range of IT needs, from office-to-home working transitions to data security concerns and everyday technical issues. We transform your IT experience, ensuring seamless infrastructure at every level. By partnering with Lyon, you'll enhance your efficiency, security, and ultimately, your creative potential.

View Lyon Profile
Inside Service Listing

$150-$199/hr

Hourly Rate
Inside Service Listing

$25,000 - $25,000

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

UK

Location
Vissensa
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agency_climbed
Claimed by Official Representatives

33

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

33

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 60% IT Services

  • 40% Cloud Computing Services

Flexible IT Services and Cloud company revolutionising the way IT is viewed

Vissensa is a privately owned, ethical provider of IT and Cloud services, renowned for its global reach, technical expertise, and forward-thinking approach to technology. With over 15 years of experience, Vissensa has established itself as a trusted advisor, delivering innovative, secure, and cost-efficient solutions to organisations worldwide. Our Services: Cloud Solutions: Best-in-class solutions for cloud deployments. Cyber Security: Comprehensive cyber security services, including Cyber Essentials accreditation. Business Continuity: Ensuring seamless operations with advanced security and automation solutions. IT Consultancy: Expert advice to optimize SaaS models, edge computing, and legacy environments. Our Values: At Vissensa, we treat customer relationships as long-term partnerships, driving them forward and celebrating their success. Our people-centric values are at the core of our business, guiding our interactions and operations.

View Vissensa Profile
Inside Service Listing

$50-$99/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

UK

Location
Qcom Ltd
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agency_climbed
Claimed by Official Representatives

32

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

32

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 50% IT Services

  • 40% Business Services

  • 10% Digital Transformation

Reliable IT Network Support; Optimising Your Technology

Qcom stands out as your dedicated digital transformation specialist, leading the way in harnessing the full potential of technology. Our mission is to empower you with this expertise, creating a culture that embraces innovation to not just meet, but exceed our collective goals, creating a lasting legacy of exceptional IT solutions. Our focus on business transformation services means that we tailor our offerings to align seamlessly with your unique business objectives. Unlocking your business potential through our strategic IT Consultancy services .

View Qcom Ltd Profile
Inside Service Listing

N/A

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

30+

Team size
Inside Service Listing

UK

Location
PCM Systems Ltd
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agency_climbed
Claimed by Official Representatives

30

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

30

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 40% IT Services

  • 25% Software Development

  • 25% Cloud Computing Services

  • 10% Web Development

IT company in Leeds, UK

PCM is built on clarity, transparency, and delivering first-class IT and professional services for businesses. We believe strong partnerships start with clear communication, so we explain technical challenges in plain, easy-to-understand language. Our team takes a structured, upfront approach—clearly outlining how we diagnose issues, implement solutions, and prevent future problems. From initial assessment to final delivery, every detail is carefully managed to ensure minimal disruption to your operations. With PCM, you gain a reliable service partner focused on efficiency, accountability, and long-term value, allowing you to stay focused on running your business while we handle the complexity.

View PCM Systems Ltd Profile
Inside Service Listing

N/A

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

8+

Team size
Inside Service Listing

UK

Location

30

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

30

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
info
Expertise Distribution (%)
  • 85% IT Services

  • 15% AI Development

AI-powered Unified Communications Platform

Elisha Telecom is a leading provider of Unified Communications solutions, specializing in AI-powered communications platforms. With headquarters in London and a presence in Metro Manila, the company has been at the forefront of innovation since 2006. The company developed ETPBX, a pioneering hosted UC platform, in 2006. Since then, it has continuously updated and integrated with third-party systems. Elisha Telecom has a diverse global client base, including Fortune 500 companies, international non-profits, universities, financial institutions, government organizations, and small and medium-sized businesses. The company's reputation as a pioneer in unified communications has attracted a wide range of clients with unique communication requirements.

View Elisha Telecom Ltd. Profile
Inside Service Listing

N/A

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

UK

Location
Verified Client Review

Verified Client Review

AI Development Consulting for Global Insurance Company

Reviewed by: David Fineberg, Head of Claims View all 1 ReviewsView all Reviews
Computer Support Centre
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agency_climbed
Claimed by Official Representatives

30

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

30

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
info
Expertise Distribution (%)
  • 20% IT Services

  • 20% Mobile App Development

  • 20% Software Development

  • 20% Web Development

  • 20% Web Design

Making Sense of IT

At the Computer Support Centre, we specialize in cutting-edge IT services and app development that drive innovation and efficiency. Our expert team delivers tailored solutions to meet your unique business needs and technology challenges. We provide services : 1. Website Development 2. App Development 3. CRM 4. IT Support Growing from strength, the CSC team is rapidly expanding and is already supporting businesses of numerous sizes. Comprehensive IT services offering proactive support, innovative solutions, and robust cybersecurity to enhance your technology infrastructure, streamline operations, and safeguard data for optimal performance and security.

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Inside Service Listing

N/A

Hourly Rate
Inside Service Listing

$50,000 - $100,000

Min. Budget Size
Inside Service Listing

50 - 80

Team size
Inside Service Listing

UK

Location

28

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

28

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 100% IT Services

MPLS enabled network

For Voice Over IP (VoIP), SureVoIP operates its own network that is MPLS capable. It does this in order to maintain quality and control and to be independent of any one source. For redundancy and high availability, the network is dispersed over two locations, and both locations also offer similar features. Two Points of Presence, or PoPs, are located in Edinburgh (Pulsant South Gyle) and London Docklands (Telehouse East).

View SureVoIP Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

2 - 9

Team size
Inside Service Listing

UK

Location

28

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

28

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 100% IT Services

Modernize | Monetize | Maximize the value of the edge

One of the leading developers of cloud-native, ultra-high speed communications software is Metaswitch. Our software solutions empower, expedite, and revolutionize communications service and platform providers across the globe.

View Metaswitch Networks Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

250 - 999

Team size
Inside Service Listing

UK

Location

28

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

28

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 100% IT Services

All-in-One Business Connectivity & Security Solutions

To unite some of the most skilled and seasoned telecom workers in the UK, Amvia was established. Because telecom companies aren't typically customer-focused or responsive, we wanted to change that. We have seen incredible progress since then. Despite handling billions of data packets per day, our primary goal is still to satisfy our clients.

View Amvia Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

UK

Location

28

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

28

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 100% IT Services

Business VoIP Solutions you can depend on

Businesses in the UK can get VoIP services and affordable, dependable, and cutting-edge phone systems from Northern VoIP. With next-day delivery to the UK and worldwide shipping, our online VoIP store offers more than a thousand products.

View Northern VoIP Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

2 - 9

Team size
Inside Service Listing

UK

Location

28

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

28

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 100% IT Services

Telecoms solutions that make life easy

Customers in the UK and throughout the world can purchase hosted telephony and data connectivity from VoiceHost, an independent wholesale and retail supplier. The goal of our tech-savvy business is to offer the greatest service at the most competitive cost. Our goal is to empower our partners and customers to design and set up sophisticated phone systems on their own. To do this, we have developed user-friendly, intuitive, and real-time configurable portals for customers and partners.

View VoiceHost Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

UK

Location
Elite It Team
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agency_climbed
Claimed by Official Representatives

28

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

28

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
info
Expertise Distribution (%)
  • 20% IT Services

  • 20% Mobile App Development

  • 20% Web Development

  • 20% Web Design

  • 10% Digital Marketing

  • 10% AI Development

Transforming Ideas into Reality: Exploring the Latest iOS App Development Trends.

Explore the latest <a https://eliteitteam.com/blogs/ios-app-development-trends/" rel="dofollow">iOS app development trends</a>, including AI-powered apps, AR/VR integration, 5G enhancements, wearable tech compatibility, and SwiftUI-driven cross-platform solutions. Stay ahead with cloud-based development, advanced privacy features, and innovative monetization strategies shaping the future of iOS apps in 2024.

View Elite It Team Profile
Inside Service Listing

N/A

Hourly Rate
Inside Service Listing

$100 - $10,000

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

UK

Location

22

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

22

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 50% IT Services

  • 50% Cloud Computing Services

Sereno IT Support

People are the center of IT support at Sereno. In addition to offering technology insight and consulting to help your organization succeed, our people-centric strategy guarantees that we consistently provide flawless customer service. We are inspired by the ways that proactive, well-chosen IT guidance benefits both of us and enables us to forge a genuinely cohesive technological alliance.

View Sereno IT Support Profile
Inside Service Listing

N/A

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

UK

Location

22

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

22

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 50% IT Services

  • 50% Cloud Computing Services

We step in when others stop

As a leading technology force, IT AND GENERAL is committed to creating outstanding digital solutions. With more than 20 years of experience, we have refined our skills in offering cutting-edge IT services, including development, support, and consulting. Our steadfast dedication to innovation has enabled us to cater to a wide range of customers in sectors such as government, healthcare, and finance. We thrive on converting complex problems into efficient software solutions, and our roots lie in a customer-centric mindset. Our team of seasoned specialists ensures that every endeavor represents our hallmark of excellence by bringing forth a harmonious mix of technical prowess and creativity.

View IT AND GENERAL Profile
Inside Service Listing

$100-$149/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

2 - 9

Team size
Inside Service Listing

UK

Location

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
info
Expertise Distribution (%)
  • 10% IT Services

  • 20% Mobile App Development

  • 20% Software Development

  • 20% Web Development

  • 20% CMS

  • 10% Digital Marketing

Vision Made Reality...

Since 2008, Neo Digitech has been a prosperous website development business providing digital solutions. With expertise in cutting-edge technologies like PHP, Dot.Net Java, and PHP frameworks like Level Symphony Cake Codeigniter, among others, as well as the newest web design technologies like HTML5, CSS, JavaScript, jQuery, and Angular JS, we create creative websites using the newest web development technologies and high-end approaches. For comprehensive online services in the United Kingdom, contact us at. Search engine optimization, social media optimization, online reputation management, pay per click management, and website and mobile app design and development are among the services we provide.

View NEO DIGITECH Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

UK

Location
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