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Symmetric Fibre

Equal upload and download speeds make doing business easier. With speeds capable of up to 10Gbps, SIRO enterprise fibre broadband is the last connection your business will ever need.

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Enterprise Service Level Agreements

SIRO provide a range of enterprise SLAs to suit your business and give you peace of mind, including a 24/7 option because sometimes, business never stops.

Mark Mullery
Assistant Director of Oscar-nominated feature Wolfwalkers, Cartoon Saloon
SIRO customer since 2020

Gigabit broadband enabled new ways of working, giving us the capability to quickly share content with any corner of the globe, whether it’s Hollywood or Beijing.

Storytelling at the speed of fibre with Cartoon Saloon

Working with its broadband partner Blacknight, the Oscar-nominated animation studio Cartoon Saloon was able to connect to SIRO Gigabit 100% fibre broadband network, enabling them to facilitate remote working during the pandemic and put the finishing touches to their latest animation Wolfwalkers and other shows.

Read the Case Study

What matters to you, matters to us...

Grow Your Business with SIRO

SIRO enterprise fibre is available on both single site and multisite, and our resilient fibre network allows you to focus on building your business for the future.

Working for the Future

Maximise everyone’s ability to work remotely with SIRO enterprise fibre. Communicate buffer-free through videoconferencing and upload and download files seamlessly.

Collaborate Together

Access cloud apps faster and collaborate with colleagues around the world to make long lasting connections.


Got Some Questions?

What is SIRO?

SIRO is a joint venture company between the ESB and Vodafone. We are building a 100% fibre-to-the-premise broadband network using the existing ESB infrastructure.  Launched in 2015, SIRO is Ireland’s first 100% Fibre wholesale network and offer speeds of up to 2 Gigabit, the fastest speeds available on the market.

Why did ESB & Vodafone get involved?

SIRO was launched in 2015 with our shareholders ESB and Vodafone committing €450m to connect the first 50 towns.  The two shareholders have complementary skill sets. ESB was a pioneer in electrifying Ireland and have unparalleled knowledge of large-scale engineering projects. Vodafone is Ireland’s leading mobile telecoms operator, with over a million customers and world-leading expertise in the transmission of data. These two companies enable SIRO to build a regional 100% fibre-to-the-building network, the first of its kind in Ireland. In 2021, we have received further investment of €620m into the expansion of our network to 770k homes and businesses across 154 towns.

Why is SIRO different?

SIRO’s key innovation is that it is a 100% fibre-optic internet connection all the way to the building (fibre-to-the-building), making it a vast improvement on any other broadband infrastructure currently available in Ireland, with no copper connection at any point in the network. SIRO is Fibre-to-the-building which means you’ll have incredible speed and reliability instantly.

How is SIRO installed?

When you purchase SIRO from a broadband provider, an engineer will visit your home at a time agreed by you to complete the fibre installation. SIRO will be brought into your home either overhead or underground and into the ESB meter box. An external connector box which houses the SIRO fibre will be positioned close to the ESB meter box.

The engineer will agree with you where to install our internal connector box. Some minor drilling is involved and some cabling depending on where you would like your modem. The engineer will ensure and prove that your home is receiving the fibre speed based on the package purchased.

For SME and Enterprise customers, an engineer will work with the business to determine the entry point. Where applicable the existing communications space will be utilised.