Skip To The Main Content


Infrastructure is more than just a sector. Infrastructure is a fundamental driver of economic, political and social progress across the globe. For decades, Simpson Thacher has been a powerhouse in the sector and remains at the forefront of developments.

Transactions across the energy and infrastructure sector in the past five years alone (2018 – 2022)

We advise many of the key players—from infrastructure companies to financial sponsors, banks and investors active in the sector—on a broad range of activities throughout the world. We also provide counsel in the formation of infrastructure funds, as well as investments made by such funds. Our representations cover a variety of infrastructure needs, including in Power and Renewables as well as in:

Power and Transmission
  • Digital Bridge and IFM in their $11 billion acquisition of Switch
  • Digital Colony (n/k/a Digital Bridge) and EQT Infrastructure’s $14.3 billion acquisition of Zayo
  • Stonepeak Infrastructure Partners in the $3 billion recapitalization of Cologix, as well as in its acquisitions of Intrado Corporation’s safety business, Astound Broadband, DELTA Fiber (with EQT), Xplornet Communications and euNetworks
  • Morgan Stanley Infrastructure Partners’ acquisition of a stake in the Lightpath fiber enterprise business of Altice USA
  • Segra and EQT in the sale of Segra’s commercial services to Cox Communications, as well as Segra in its acquisition of North State Telecommunications Corporation
  • Astound Broadband in its $661 million acquisition of three service areas from WideOpenWest, Inc.
  • Apax and Warburg Pincus in their acquisition and related acquisition financing for T-Mobile Netherlands Holding B.V., a transaction that valued the company at an enterprise value of €5.1 billion
  • KKR in its agreement with Telefónica to establish Chile’s first open access wholesale fiber optics network
Show more
Renewable Energy
  • Genesee & Wyoming’s $8.4 billion sale to affiliates of Brookfield Infrastructure and GIC
  • Macquarie CAF Management’s investment in a public-private partnership to develop container staging hub at the Port of Los Angeles
  • Blackstone in the €21 billion recapitalization of Mileway
  • KKR in its tender offer for Hitachi Transport System and related financing
  • Sudamericana, Agencias Aéreas y Marítimas S.A. (SAAM) in the $1 billion sale of its shipping terminal and logistics businesses in South America, Central America and Florida to international shipping and container transportation company Hapag-Lloyd
  • Blackstone Infrastructure Partners in the acquisition of all of the outstanding ordinary shares of Atlantia S.p.A
  • Stonepeak Infrastructure Partners in connection with its acquisition of Rinchem Company, Inc.
  • KKR in its acquisition of all of the outstanding shares of Ocean Yield ASA and related acquisition financing, in an offer that valued Ocean Yield’s share capital at approximately $834.4 million
  • Corsair Infrastructure in the financial close of the $4.2 billion development project with Vantage Airport Group to build a new international Terminal 6 at JFK Airport in New York
Show more
Transportation, Roads, Bridges and Ports
  • Consortium’s investment in Abu Dhabi National Oil Company’s select gas pipeline assets valued at $20.7 billion
  • Calisen plc’s £337.4 million IPO
  • Stonepeak in its acquisition of Teekay LNG in a transaction with an enterprise value of $6.2 billion
  • KKR in its agreement to acquire an indirect non-controlling interest in the Port Arthur LNG Phase 1 project in Jefferson County, Texas from Sempra Infrastructure
  • Global Infrastructure Partners in its strategic partnership with TotalEnergies to advance their commitment to the U.S. renewable energy sector, including GIP’s sale of 50% of its interest in Clearway Energy Group to TotalEnergies
  • KKR in the announced sale of its 50% stake in X-ELIO to its joint venture partner, Brookfield Renewable
  • IFM Net Zero Infrastructure Fund in its announced acquisition of a majority interest in GreenGasUSA Holdings, a renewable natural gas developer, owner and operator
  • KKR in its acquisition of the entire issued share capital of ContourGlobal plc, which valued ContourGlobal at $2.14 billion
  • EQT Infrastructure V fund in its acquisition of InstaVolt
Show more
“The energy and infrastructure practice group provides a ‘strong and highly competent service.’”
Legal 500 USA

    News & Events



        In 2021, Simpson Thacher advised on 4 of the 6 largest infrastructure funds raised
        Spotlight on
        Simpson Thacher Ranked Top Infrastructure Fund Formation Counsel