I N T E L L I G E N T T E C H N O L O G Y NETWORKING
BIG Fiber secures US $ 250 million financing to expand dark fibre network
BIG Fiber, a leading provider of high-capacity dark fibre infrastructure, has announced the closing of a US $ 250 million debt facility with an additional US $ 100 million accordion feature. The financing, led by Stonepeak Credit and La Caisse( formerly CDPQ), provides BIG Fiber with significant capital to accelerate the expansion of its core markets and reinforces its position as a premier provider of mission-critical digital infrastructure in the US.
The new credit facility follows BIG Fiber’ s 2024 milestone, the firstever green loan in the dark fibre sector and marks a significant scaling of the company’ s financial capacity. Backed by sponsors, Columbia Capital and SDC Capital Partners, the expansion of BIG Fiber’ s debt facility and the infusion of new capital ensure the company remains well-positioned to meet the escalating infrastructure demands of the AI era.
Proceeds of the facility will be used to refinance existing debt, provide new capital and facilitate the necessary headroom for major network expansions already underway. This includes a significant multi-market buildout in Greater Atlanta, adding over 205 route miles and 165,000 fibre miles to BIG Fiber’ s existing market-leading footprint.
“ Our partnership with Stonepeak Credit and La Caisse marks a pivotal moment in our mission to empower our customers with highly scalable and purpose-built dark fibre solutions,” said Bruce
Garrison, CEO of BIG Fiber.“ This financing ensures we have the scale to stay ahead of the escalating demand for modernised infrastructure enabling the AI ecosystem and the necessary digital highways for decades to come.”
“ BIG Fiber’ s infrastructure delivers critical bandwidth to meet the insatiable demand for both data and compute capacity across its key markets,” said Arun Varanasi, Managing Director at Stonepeak Credit.“ We are proud to partner with Columbia Capital, SDC Capital Partners and La Caisse to support the company’ s next leg of growth as it positions itself as one of the preeminent dark fibre operators in the country.”
“ BIG Fiber is well positioned to meet the growing connectivity needs of enterprises and data centres seeking new, high-quality infrastructure options,” said Jérôme Marquis, Managing Director and Head of Private Credit at La Caisse.“ Its resilient business model, underpinned by long-term contracts and strong structural demand, positions the company well for growth. Together with Stonepeak Credit, we’ re providing a tailored financing solution that supports the continued buildout of essential digital infrastructure.”
The latest expansion will bring BIG Fiber’ s Atlanta and San Francisco Bay Area network capacity to 850 route miles and over 3 million fibre miles. Projects are currently under construction or contract, with phased Ready for Service( RFS) dates expected in early 2027. �
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