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Telecoms Companies in Sheffield: 194 Active Firms (2026)
Telecoms companies in Sheffield provide connectivity, voice, data and network services for organisations across the city region.
Buying decisions tend to sit with IT, operations, estates and finance teams rather than brand marketing or consumer acquisition. Sheffield telecoms suppliers usually sell to business customers with multi-site needs: office voice systems, data circuits, site connectivity, managed network support and installation work across South Yorkshire. Engagements are often service-management relationships, with procurement weighing resilience, installation capacity, response times and the ability to handle ongoing network operations. The better-fit buyers are upper-mid-market organisations that want a local technical partner, not a national consumer tariff or a transactional equipment sale.
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Sheffield has 194 actively trading telecoms companies in this list, making it a compact local cohort rather than a broad regional roll-up. Reported employment totals 454 people, which points to a market of small operating teams, technical contractors and a thin layer of larger service providers. The commercial profile is concentrated in business-facing connectivity and managed communications, with only a small number of firms at revenue scale. Newer incorporations add some churn at the edge of the market, but the active base remains mainly local and service-led.
Ofcom sets the main UK telecoms rules through the General Conditions, covering contract information, switching, complaints handling, emergency access and number management. Business-focused Sheffield providers also have to manage practical obligations around network security, service continuity and lawful requests, alongside ICO expectations where call records, customer contacts or location-linked information involve personal data. Market structure matters as much as formal regulation: many regional suppliers depend on wholesale fixed and mobile access, so customer service quality can be constrained by upstream provisioning, repair windows and fault escalation processes.
Local demand appears likely to remain tied to estates that need dependable connectivity, managed voice and responsive field support rather than speculative software-style expansion. The cohort tends to split between small technical operators and a narrower set of scale-up service providers, which may encourage partnerships, resale arrangements and selective acquisitions. Margin pressure has been a recurring feature where firms rely on wholesale networks, while buyers expect security, uptime and account management to be bundled into ordinary service contracts. Firms with credible installation capacity and clear service ownership appear better placed than pure resellers.
194
Active firms
2026
4
£5M+ firms
Above £5M revenue
42
Recent incorporations
Since 2022
Key facts
About 2% of the trading cohort reports turnover above £5M (4 of 194 firms) — the rest sits below that revenue band.
21% of the cohort was incorporated since 2022 (42 firms), so a sizeable share is in its first few filing cycles.
Sheffield telecoms suppliers cover connectivity, voice, data and managed network services for organisations across the city region.
Local sourcing appears relevant where buyers need installation, support or account coverage alongside national carrier relationships.
Office communications, data transfer and managed network provision can involve different procurement owners rather than one telecoms budget.
Turnover and employment can point in different directions, so qualification tends to work better when trading scale and operating model are considered separately.
Top Sheffield Telecoms companies
AFFINITY IT SERVICES LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides managed IT support and IT services for businesses, including Microsoft 365, cloud backup and hosting, system monitoring and IT projects. Also supplies telecoms services such as business…
Serves small to medium-sized businesses and commercial or industrial organisations, primarily in Sheffield and South Yorkshire.
Financial Health
HealthyHealthy · -6% CAGR over 2y
Location
HOLBROOK TELECOM LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides business telecommunications services including VoIP phone systems, SIP trunks, mobile contracts and SIM plans, and business internet connectivity such as FTTC, FTTP and leased lines,…
Sells to businesses needing telecoms and connectivity, typically companies with 5 to 500 employees. Targets organisations with desk-based and mobile workforces across single or multiple sites,…
Financial Health
WeakWeak · -25% CAGR over 4y
Location
Blue Portal Telecom Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides business telecommunications and IT services including mobile tariffs, VoIP phone systems, and broadband connectivity. Also supplies IT hardware such as servers and offers CCTV installation…
Serves small businesses, local organisations and individual consumers in South Yorkshire needing telecoms, broadband, mobile, VoIP, CCTV, data cabling and IT hardware services.
Financial Health
StableStable · Hiring · 2% CAGR over 5y
Location
LAYER3 DATA SERVICES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy
Location
Yorkshire Property Developers Ltd
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsSupplies business telecommunications and IT products including mobile tariffs, VoIP phone systems, broadband, servers and other IT hardware. Also installs CCTV and data cabling and provides account…
Serves a B2B and B2C mix: small businesses, local organisations and individual consumers in South Yorkshire needing telecoms, mobile, broadband and IT purchasing support.
Financial Health
HealthyHealthy · 0% CAGR over 3y
Location
MEDIA LOGIC LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides IT services for businesses including network design and installation, structured cabling for data and telephony, managed VPN and network monitoring, cybersecurity and backup solutions, and…
Serves UK businesses needing IT infrastructure support, including organisations with branches, new-build or refurbishment projects, and buyers of business hardware, software, networking, security and…
Financial Health
DistressedDistressed · -5% CAGR over 4y
Location
ILUX ELAAS LTD
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsProvides managed IT services including technical support, service desk operations, IT consultancy, infrastructure management, cloud migration, backup and disaster recovery, cybersecurity, and VoIP…
Serves businesses and organisations in education, health and social care, hospices, legal services and high-growth technology, including schools, care providers, solicitors and scaling companies.
Financial Health
HealthyHealthy
Location
ONE2CALL LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides managed IT services for businesses, including technical support, IT strategy, cybersecurity protection, cloud management, network connectivity, and telecoms systems. Also offers IT health…
Serves small and mid-sized businesses in Yorkshire and across the UK that need an outsourced technology partner, typically business owners and teams without large in-house IT resources.
Financial Health
WeakWeak · Hiring · 2% CAGR over 5y
Location
Avisec Ltd
Trajectory
4y · 2021–NowFinancial sub-scores
Computed from 4 filingsFinancial Health
StrongStrong · Hiring · 19% CAGR over 4y
Location
ITI NETWORK SERVICES LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides telecommunications infrastructure services including project management, field engineering resources and end‑to‑end delivery of network projects. Services cover wireless systems, FTTx…
Serves blue-chip enterprises and organisations with internal IT teams, including clients in MOD, healthcare, education, energy, transport, retail, hospitality, industrial and security sectors.
Financial Health
StableStable · 1% CAGR over 4y
Location
U-TELECOM LTD
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides telecommunications consulting and procurement services for businesses, including bill analysis, strategy advice, and sourcing voice and data services such as local and long‑distance calling,…
Serves B2B customers of all sizes, particularly organisations reviewing voice, data, internet and networking suppliers or seeking external support with telecom cost and provider selection.
Financial Health
StrongStrong · Growing, Hiring · 20% CAGR over 3y
Location
IT MISTRY LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides IT support and consulting services for businesses, including bespoke IT solutions, infrastructure monitoring, cybersecurity, connectivity and communications systems, Windows remote support,…
Serves businesses needing outsourced IT and communications support, including organisations seeking infrastructure management, security, connectivity, monitoring and remote Windows support.
Financial Health
WeakWeak · -4% CAGR over 4y
Location
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
Colosus Ltd.
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · Hiring · 21% CAGR over 4y
Location
Trinity Communications Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · Hiring · 11% CAGR over 4y
Location
Simoda Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides IT services including cloud computing, cybersecurity, enterprise networking, business connectivity, virtual desktop infrastructure and managed IT support. Also develops and delivers…
Serves businesses and organisations of all sizes across the UK and Europe, including teams responsible for IT, security, cloud infrastructure, connectivity and digital transformation.
Financial Health
StrongStrong · Growing, Hiring · 46% CAGR over 4y
Location
DATAH LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed
Location
Amvia Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides managed IT services including cybersecurity monitoring, managed detection and response, Microsoft 365 security management, IT helpdesk support, leased line and connectivity services, hosted…
Targets UK businesses with 10–500 staff, especially SMEs in manufacturing, construction, accountancy and legal services, as well as multi-site organisations needing managed technology suppliers.
Financial Health
StableStable · 0% CAGR over 4y
Location
EUROCOMS (UK) LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and installs structured cabling and fibre optic networks, CCTV, access control and door entry systems. Provides business telephony, wireless LAN deployment, audio‑visual installations,…
Serves UK businesses and multi-site organisations needing communications infrastructure, security, AV and connectivity support, including office space providers, industrial companies and commercial…
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
A V Shop Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed · -16% CAGR over 4y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · 0% CAGR over 4y
Location
Millgate Connect Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides IT and telecommunications products and services including hardware procurement, software licensing, cloud and infrastructure solutions, cybersecurity, managed IT services, and business…
Sells to UK businesses, particularly growing SMBs and established enterprises, with IT, operations and communications teams responsible for workplace technology, cybersecurity, cloud infrastructure…
Financial Health
StableStable · 3% CAGR over 2y
Location
Tim Skidmore Data Cabling Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · Hiring · 19% CAGR over 4y
Location
South Yorkshire Telecoms Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak
Location
Yoha Labs Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong
Location
ICABLEUK LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides network infrastructure installation services for businesses, including structured data cabling, Wi‑Fi systems and network installations. Delivers design and deployment of communication and…
Sells to businesses needing communications and network infrastructure support, including organisations requiring structured cabling, Wi-Fi and network installations. Serves B2B customers nationwide…
Financial Health
HealthyHealthy · Hiring · 26% CAGR over 4y
Location
Fibre2Blow Limited
Trajectory
1y · 2024–NowFinancial Health
Insufficient historyInsufficient history
Location
Gatehouse Network Installations Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable
Location
CAAS CONSULTING LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · 0% CAGR over 4y
Location
Telecommunications International Agencies
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed
Location
Paragon Micro
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides IT infrastructure and cybersecurity services including cloud solutions, managed services, help desk support, vulnerability testing, and backup and disaster recovery. Also supplies computer…
Serves business IT and procurement teams, including infrastructure, security and CISO-level stakeholders, buying technology products and support for end-user computing, cloud, data centre and risk…
Financial Health
DistressedDistressed · -24% CAGR over 4y
Location
POWERGAUGE LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · -16% CAGR over 4y
Location
WR PROJECT CONSULTANTS LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · -68% CAGR over 4y
Location
JWC Communications Ltd
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsFinancial Health
WeakWeak · 0% CAGR over 3y
Location
Versatele Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · -16% CAGR over 4y
Location
OSEI Europe Ltd
Trajectory
4y · 2021–NowFinancial sub-scores
Computed from 4 filingsFinancial Health
StableStable
Location
JAB Electrical Wholesale Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong · Hiring · 19% CAGR over 4y
Location
Securelec Services Limited
Trajectory
1y · 2024–NowFinancial Health
Insufficient historyInsufficient history
Location
CALLWISE SOLUTIONS LIMITED
Trajectory
5y · 2022–NowFinancial Health
Insufficient historyInsufficient history
Location
KAIZEN TELECOM LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy
Location
MURPHY COMHIRE LIMITED
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · -71% CAGR over 4y
Location
Kie Comms Ltd
Trajectory
3y · 2024–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
HealthyHealthy · 0% CAGR over 2y
Location
MYR TELECOMS LTD
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
WeakWeak · 0% CAGR over 1y
Location
Micromart International Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak
Location
NH ELECTRONICS LTD
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
DistressedDistressed · 0% CAGR over 1y
Location
Enco Associates Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides telecommunications systems design, installation and support, including VoIP, SIP trunking, IP telephony platforms, and call logging and recording systems. Also delivers data cabling, VPN and…
Serves UK businesses from SMEs to large, multi-site organisations, including teams managing complex voice, data, video and call management needs across centralised or distributed operations.
Financial Health
StableStable · 0% CAGR over 4y
Location
DOLPHIN ICT LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides managed IT support and ICT services for businesses, including network infrastructure, cloud and Microsoft 365 solutions, internet connectivity, VoIP phone systems, cybersecurity services,…
Sells to businesses, particularly growing companies needing managed IT, cyber security, telephony and physical security support. Serves organisations seeking ongoing infrastructure and application…
Financial Health
StableStable · Hiring · 37% CAGR over 2y
Location
Oxspring Network Solutions Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides network infrastructure consulting, design, deployment and support services. Specialises in Cisco‑based enterprise networking including LAN, Wi‑Fi, SD‑WAN, security, Private 5G and IoT…
Targets businesses and enterprise IT teams with complex networking needs, including Wi‑Fi, LAN, SD‑WAN, security, private 5G and IoT projects across varied building types and operational environments.
Financial Health
WeakWeak · -3% CAGR over 3y
Location
JPB Telecoms Ltd
Trajectory
1y · 2024–NowFinancial Health
Insufficient historyInsufficient history
Location
Ninehundred Communications Group Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsSupplies and installs communication, security and technology systems including two‑way radios, CCTV, access control, telematics, IT infrastructure, and voice and data networks. Provides equipment,…
Serves B2B organisations in construction and quarrying, education, events, rail, retail, hospitality and leisure, transportation and logistics, particularly operations and site teams.
Financial Health
StrongStrong · Profitable, Growing, Hiring · 7% CAGR over 3y
Location
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How Sheffield Telecoms companies work and how to sell to them
What they do
Sheffield telecoms firms usually earn revenue through recurring service contracts rather than one-off product sales. Monthly charges cover connectivity, hosted voice, managed network support, maintenance and service desk access, while installation, cabling, site surveys and equipment supply create project revenue around the initial deployment. Margins tend to depend on how much of the work is owned directly versus resold through wholesale networks, so propositions often combine technical labour, account management and contract administration. Pricing is typically shaped by number of sites, users, circuits, support cover and service-level expectations, with renewals mattering more than short campaign-led acquisition.
Who they sell to
Most suppliers sell to business customers with operational dependence on phones, data circuits and site connectivity. The usual buying group includes IT managers, operations directors, estates teams and finance leads, with procurement becoming more formal where several locations, installation work or service-level commitments are involved. Sales are typically direct and relationship-led, sometimes supported by referral partners or framework-style procurement where the customer wants comparable quotes. Buying cycles can be short for a single site move, but multi-site migrations, voice replacements and managed network contracts tend to require discovery, technical design, installation planning and finance approval before signature.
What they buy
Telecoms operators tend to spend on systems that reduce service friction and protect recurring revenue. Relevant categories include CRM, quoting, contract management, billing, ticketing, remote monitoring, network documentation, cyber security, backup, finance software and field-service scheduling. Smaller providers often need tools that join customer records, service assets and support tickets without adding much administrative load. Firms with installation capacity may also buy vehicles, test equipment, cabling supplies, health and safety support, engineering recruitment and subcontractor management. Professional services can include telecoms regulation advice, customer terms, debt recovery, bookkeeping and account-based marketing aimed at regional business buyers.
Why and how to sell to them
Buying intent often appears when a provider wins larger managed-service work, takes on more installation staff, adds new wholesale relationships or inherits customers through a local acquisition. Pain points are usually practical: delayed provisioning, unclear service ownership, manual billing, slow fault escalation, customer churn at renewal and pressure to evidence uptime. Outbound messages tend to work better when they connect to margin, response time or renewal risk rather than abstract efficiency. Sheffield-based providers are likely to value local credibility, low implementation burden and proof that a supplier understands business connectivity contracts, not just generic software procurement.
How this list is built
Data sources
This list is built from UK Companies House filings, XBRL accounts data, and semantic analysis of each company's public website. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Classification
Rather than relying solely on SIC codes, Firmbase classifies each company semantically: the company's website is crawled, an AI model reads what the company actually sells, and the company is placed into the relevant industry and subsectors. SIC codes are used as one signal but not the only one. This means a company that registered under a generic SIC code but pivoted into (for example) fintech is correctly identified as fintech, not as its original SIC category.
Freshness
The underlying company data is refreshed from Companies House continuously; filings appear in the list within days of submission. The curated list ordering is regenerated when the underlying data moves meaningfully (company count changes by more than 5%, a new company enters the top-ranked segment, or the filed-revenue numbers for the top firms change). You can see the last-updated timestamp near the top of the page.
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Frequently asked questions
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