Participated · Equity · Jul 2024

Cloverleaf Infrastructure was founded in 2024 and develops critical site infrastructure for data centers, including power sourcing and other foundational utilities. The company positions itself as an intermediary between utilities and data-center operators to enable site development. In 2024 Cloverleaf raised $300 million, and later that year entered into a partnership with Nvidia, which invested what reporters say is likely several hundred million dollars for a minority stake. Coverage characterizes the Nvidia investment as strategic and tied to accelerating AI data-center buildout. Specific operating metrics, revenues, or valuation details were not disclosed in the articles. The company’s public profile is centered on enabling and financing the infrastructure needed for large-scale AI data centers.

Led · Equity · Feb 2024

rPlus Energies is a renewable energy developer that reports a 15 GW pipeline of projects. The company is advancing both wind and energy storage, and Sandbrook Capital’s commitment is expected to help bring about 1 GW of storage online in the near term. Sandbrook’s platform-level partnership, alongside continued support from rPlus’s founding investor Gardner Group, is intended to facilitate development across the pipeline. CEO Luigi Resta described the partnership as aligned on an execution-oriented and community-minded approach and said it will support a strategic transition to own-and-operate for the long term. The announcement states an initial Sandbrook commitment of up to $460 million but does not specify financing instruments beyond that commitment. Lazard Frères & Co served as financial advisor to rPlus; Foley & Lardner served as transaction counsel to rPlus, Kirkland & Ellis to Sandbrook, and Parr Brown Gee & Loveless to Gardner Group.

Participated · Equity · Aug 2023

NeXtWind is a Berlin-based energy start-up focused on repowering and expanding wind farm assets in Germany. It currently holds a portfolio of ten wind farms in Northern and Eastern Germany and targets the replacement of aged turbines. The company identifies wind sites suitable for integration with photovoltaic systems and batteries for intermediate storage to create green, decentralised energy supply. Founders Lars B. Meyer, Werner Süss and Ewald Woste lead the firm's strategy to become a major sustainable power producer in Germany. NeXtWind has secured a financing round of up to $750 million to accelerate acquisitions and repowering efforts. The company plans to use the capital to acquire and repower more wind power plants and scale its sustainable energy model across Germany.

Led · Equity · Dec 2022

Havfram is a pure‑play offshore wind infrastructure company focused on transport, installation and development services for the offshore wind sector. The company was spun out of Havfram AS (formerly Ocean Installer AS), sponsored by HitecVision, and is developing a fleet of next‑generation turbine installation vessels capable of servicing 20 MW+ turbines. Havfram has executed a shipbuilding contract with CIMC‑Raffles for the NG20000X vessel, which is equipped with a 3,250‑ton crane and a battery hybrid drive train; the agreement contemplates construction of up to four vessels. The vessels are designed to install turbines with over 300m tip height and foundations up to 3,000 tonnes at water depths to 70m, and include electric battery and energy recovery systems intended to reduce carbon emissions per MW installed by over 70% versus previous models. The company is headquartered in Oslo and maintains a global presence with offices in Stavanger, Perth and Aberdeen. Financially, Havfram has doubled its equity funding to USD 500 million via Sandbrook Capital and PSP Investments and is supported by credit financing from commercial banks and export credit agencies; HitecVision remains a minority investor.