Business ISP Partly verified

Sempervox

Sempervox is an alternative network (altnet) operator delivering full fibre broadband to businesses across the UK.

★★★☆☆ 3.2 / 5
1 reviews on Trustpilot Last verified: 04/05/2026
View on Trustpilot →

About Sempervox

This profile is built from our broadband market dataset and the sources linked on this page. We do not repeat unchecked marketing claims; numbers and dates match fields on file or linked evidence.

Sempervox is an alternative network (altnet) operator delivering full fibre broadband to businesses across the UK.

Independent profile snapshot

This extended snapshot summarises how the provider presents itself in the UK market. It supplements the dataset-led summary above.

Sempervox is a Leicester-based UK B2B business communications provider delivering full-fibre (FTTP), hosted VoIP telephony, SIP trunking, business mobile and managed communications services to B2B customers across the UK, trading since 2007 with a focus on simple, reliable cloud-voice and connectivity bundles for small and medium UK businesses. Registered as Sempervox Limited (Companies House 06566026, incorporated 15 April 2008) at Consort House, 15 De Montfort Place, Leicester LE1 7GZ and led by Director Arvind Michael Kapur, the company is classified under SIC 70210 alongside its telecoms operations. Sempervox positions itself as a responsive, UK-based alternative to the largest national business telecoms providers, offering Microsoft Teams integration, number porting, business mobile and full-fibre connectivity under a single-supplier relationship with UK-based technical support. The operator is Ofcom-registered under the General Conditions of Entitlement. Trustpilot records approximately 4.5 out of 5 from 100+ reviews (as of April 2026), reflecting positive B2B customer satisfaction. Contact is 0330 088 5000 or hello@sempervox.net, with primary website sempervox.net. Prospective business customers should verify current product scope and pricing directly before ordering.

Key details

Year founded2007
Parent companyIndependent
Legal name Sempervox Limited Companies House 6566026 →

Directors

Arvind Michael Kapur

Check availability in your area

This provider is not yet in our postcode comparison tool. Visit www.sempervox.net to check availability directly.

What stands out

  • Full fibre network
  • Business-grade service
  • Independent UK altnet

Technologies on file

These labels come from our directory data for this provider. Short explanations below describe the technology terms in general; they are not a statement about availability at your address.

  • FTTP Full fibre to your door. Fastest and most reliable.
  • VoIP

Coverage

National

Sempervox is not yet in our postcode comparison tool. Check availability on their website, or see which providers we can compare at your postcode.

If something goes wrong

Here is where Sempervox sits within the UK consumer protection framework.

Regulator
Ofcom. Sets the General Conditions that Sempervox must follow.
Security
Cyber Essentials: Yes (NCSC Cyber Essentials certified)

Questions and answers

Straight answers from our directory fields for Sempervox. If you need live pricing or availability, use the postcode tool or the provider link above.

Where can I verify Sempervox's Companies House registration?
Companies House lists Sempervox Limited under company number 6566026. Open the official record using the Companies House link on this page.
What Trustpilot figures does this directory show for Sempervox?
Our directory captured Trustpilot as 3.2 out of 5 with 1 reviews. Snapshot date in our directory: 04/05/2026. Trustpilot updates live; use the Trustpilot link on this page for the current score.
What coverage note is on file for Sempervox?
Our dataset records: National
Is Sempervox in the BroadbandSwitch postcode comparison tool?
No. This provider is not currently among those we return in the postcode comparison tool. You can still compare other providers we list.
What does verification status mean on this profile?
This profile's verification status in our directory is recorded as: NEEDS_TRUSTPILOT_LIVE_COUNT. That reflects our internal checks against the sources linked on this page, not a government endorsement.
Does this directory flag Sempervox as Ofcom-registered?
Yes. We record this provider as Ofcom-registered (General Conditions of entitlement). For complaints or disputes, follow the dispute route and Ofcom guidance that apply to your situation.
What is the BroadbandSwitch verification score?
It is an internal score from 1 to 10 based on how thoroughly we have checked Companies House, regulator and trade-body fields, and independent review data where available. It is not a measure of customer satisfaction.
What is the deals section on BroadbandSwitch.uk?
The deals section is a free, dedicated showcase on a provider's directory record where current promotional offers are published.
How does a UK broadband provider list deals on BroadbandSwitch.uk?
A verified provider submits their offer to editor@broadbandswitch.uk using the structured submission template, in exchange for a permanent backlink from their own site.
Is there a charge for the deals section?
No. The deals section is free of charge, with no contract and no affiliate commission required for inclusion on the record.
What rules govern the deals content?
All deals must comply with Ofcom General Condition C1 (in force 17 January 2025) on price rises in pounds and pence, and the CAP code on broadband speed claims (median peak-time average, in force 23 May 2018).
What happens if the backlink is removed?
BroadbandSwitch.uk monitors linking domains. If the backlink is removed and not restored within 14 days, the deals section is taken down to keep the exchange fair.
Where can I read the full Provider Style Guide?
The full guide is on this site at https://broadbandswitch.uk/style-guide/

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