T-Mobile today announced it has entered into definitive agreements to form two strategic fiber joint ventures (JVs): a 50/50 partnership with Oak Hill Capital to acquire and combine GoNetspeed and Greenlight Networks, and a separate 50/50 joint venture with Wren House to acquire i3 Broadband. The transactions expand T-Mobile’s fiber footprint to bring fast, reliable internet to more than 1 million additional homes nationwide.
T-Mobile’s approach to broadband is simple: deliver the best product, at the best value with the best experience all on the best network. This strategy has made T-Mobile the nation’s leader in fixed wireless access, with 5G broadband leading the industry in growth for four consecutive years. At the same time, T-Mobile is rapidly scaling fiber as a complementary part of its broadband portfolio. Through wholesale partnerships and capital-efficient joint ventures, the company has quickly grown to serve approximately 1 million customers with ultra-fast fiber in just two years.
“These partnerships are about expanding access to high-performance fiber for more customers,” said André Almeida, Chief Broadband, Enterprise and Emerging Business Officer at T-Mobile. “We’ve built strong momentum in fiber, and these JVs allow us to scale faster by combining leading fiber operators with T-Mobile’s brand, distribution and customer experience to meet growing demand for fast connectivity options.”
Building on a Proven Fiber Model
Consistent with this strategy, T-Mobile today announced two new joint ventures that will further expand its fiber footprint:
JV with Oak Hill Capital for GoNetspeed & Greenlight Networks
T-Mobile and Oak Hill, a private equity firm with deep digital infrastructure experience, have agreed to form a 50/50 JV through which T-Mobile will acquire a 50% stake in a joint venture integrating two of Oak Hill’s existing fiber portfolio companies, GoNetspeed and Greenlight. The businesses will expand T-Fiber by T-Mobile to residential customers across attractive markets primarily in the Northeastern U.S. with a current presence in states including Connecticut, Maine, Maryland, Massachusetts, New Jersey, New York, Pennsylvania, and Rhode Island. The combined platform is expected to pass over 1.3 million households by the end of 2026.JV with Wren House for i3 Broadband
In a separate transaction, T-Mobile will form a 50/50 JV with global infrastructure investor Wren House to acquire i3 Broadband, a high-quality fiber-to-the-premises (FTTP) provider serving residential customers. The partnership brings i3 Broadband into T-Mobile’s growing fiber portfolio, adding another scalable FTTP platform backed by strong operational expertise and long-term infrastructure capital. i3 Broadband is expected to pass approximately 500 thousand households by the end of 2026, across current markets including those in Missouri, Illinois and Rhode Island.
Expanding T-Mobile’s Broadband Leadership
These investments build on T-Mobile’s strategy to expand its broadband reach by combining its leading 5G broadband offering with a rapidly growing fiber footprint. While 5G continues to serve as a key growth engine, fiber adds multi-gig speeds and incremental capacity in targeted markets – enabling T-Mobile to offer more connectivity options to more customers. Through these joint ventures, T-Mobile pairs its national retail scale, powerful brand and award-winning customer experience with the proven fiber build capabilities of GoNetspeed, Greenlight and i3 Broadband, alongside experienced digital infrastructure investors Oak Hill and Wren House. Similar to T-Mobile’s existing fiber JVs, these companies will operate under wholesale models designed to scale efficiently while enabling the Un-carrier to deliver its differentiated value proposition – simple plans, transparent pricing and no annual service contracts, all backed by a brand known for putting customers first. Together, these transactions mark continued progress toward T-Mobile’s long-term broadband ambitions, adding incremental scale beyond T-Mobile’s existing path to serving 18 to 19 million total broadband customers by the end of 2030, including 3 to 4 million fiber customers.
“We have enjoyed Oak Hill’s partnerships with GoNetspeed and Greenlight and are tremendously proud of the growth we have achieved together with Richard Clark, Mark Murphy, and their respective teams,” said Scott Baker, Managing Partner at Oak Hill. “We are excited to partner again with T-Mobile in this new joint venture that builds on our shared conviction in the expansion of high-quality digital infrastructure and in the importance of excellence across network, product, value and customer experience. By leveraging T-Mobile’s capabilities, we believe that GoNetspeed and Greenlight are positioned to accelerate fiber-to-the-premises construction and to deliver reliable, high-speed connectivity to even more underserved communities across the Northeastern and mid-Atlantic U.S.”
Philippe Busslinger, CEO of Wren House, said, "We are proud that i3 Broadband has developed into a strong, scalable platform with real momentum, driven by the vision and execution of Paul Cronin and his leadership team. This is underscored today by T‑Mobile’s decision to include i3 as one of a limited number of businesses it partners with. We look forward to a successful partnership with T‑Mobile and the i3 leadership team to dramatically scale i3 Broadband for the benefit of the communities in which it operates."
Transaction Details
The transaction with Oak Hill is expected to close in 1H 2027, at which time T-Mobile expects to invest approximately $2.0 billion to acquire a 50% equity interest in the JV and substantially all existing residential fiber customers. The transaction with Wren House is expected to close in 2H 2026, at which time T-Mobile expects to invest approximately $700 million to acquire a 50% equity interest in the JV and substantially all existing residential fiber customers. The closing of these transactions are subject to customary closing conditions and regulatory approvals.
Together, these joint ventures mark another step in T-Mobile’s continued long-term broadband expansion, strengthening its ability to deliver more choice and better connectivity to customers nationwide.